https://old-wiki.warthunder.com/api.php?action=feedcontributions&feedformat=atom&user=U27474208War Thunder Wiki - User contributions [en]2026-04-16T10:11:29ZUser contributionsMediaWiki 1.30.0https://old-wiki.warthunder.com/index.php?title=Smoke_screen&diff=119468Smoke screen2021-12-27T03:06:21Z<p>U27474208: Created seperate section for naval hydroplane smoke screens and hydroplane table, added info on hydroplane smoke screens</p>
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<div>{{DISPLAYTITLE:Smoke Screen}}<br />
<br />
'''Smoke Screen''' refers to the ability to conceal movement or location by the usage of smoke. It is available to a large number of tanks, in three forms: smoke shells fired from the tank's armament, smoke grenades fired from exterior launchers, and fuel injection into the engine to produce smoke (known as the Exhaust Smoke System or ESS). <br />
<br />
Smoke screen is also available on all naval vessels after researching the "Smokescreen" modification. Smoke screens in naval battles produce an effect similar to a tank's ESS when used in a battle.<br />
<br />
==Ground Forces==<br />
<br />
===Development History===<br />
For quite a long time, the rumour of the addition of smoke into the game had been tossed around by the community and developers. Depending on the year, it went from a speculated to a denied addition.<br />
<br />
The first tease of the smoke screen was in the 2017 April Fool's events, where the tanks in the event being able to deploy functional smoke grenades, creating a smoke screen around the vehicle. The event showcased the usage of smoke to the community, which was met with much optimism and support, as well as speculation that the feature would be coming in a future update.<br />
<br />
The feature was added into the game in [[Update 1.69 "Regia Aeronautica"]].<br />
<br />
===Effect of smoke screen===<br />
Using smoke in the game creates a large white cloud at the area of impact. Smoke varies between the application on screen radius, screen time, and screen holding time.<br />
<br />
* Screen radius: How wide the smoke screen is effective<br />
* Screen time: Time it takes for the smoke to become effective<br />
* Screen holding time: Time smoke is effective before dissipating<br />
<br />
The smoke screen obscures line-of-sight vision rather well once deployed. In addition of concealing movement to the eyes, markers also disappear if obscured by the smoke, granting full concealment to those who use smoke well. While smoke does indeed conceal the precise position of a vehicle, the presence of smoke is also a good indication for the enemy on the general direction the smoke users are, so its use must be exercised with caution.<br />
<br />
Smoke shells are generally not an offensive weapon due to its utility and lower muzzle velocity, however, the smoke shells are treated like explosive shells and could be used to devastating effect on open-topped and lightly-armoured vehicles in some cases.<br />
<br />
All forms of smoke screens are effective against passive infrared night vision devices. However, while smoke shells and smoke grenades can block thermals, '''Exhaust Smoke Systems (ESS)''' '''do not block thermal sights'''.<br />
<br />
=== Ground vehicles with smoke ===<br />
==== Smoke Shells ====<br />
{| class="wikitable" width="100%"<br />
|-<br />
! style="text-align:center" | '''Rank'''<br />
! '''[[File:USA flag.png|60px|border|link=Category:USA ground vehicles]]<br>[[:Category:USA ground vehicles|USA]]'''<br />
! '''[[File:Germany flag.png|60px|border|link=Category:Germany ground vehicles]]<br>[[:Category:Germany ground vehicles|Germany]]'''<br />
! '''[[File:USSR flag.png|60px|border|link=Category:USSR ground vehicles]]<br>[[:Category:USSR ground vehicles|USSR]]'''<br />
! '''[[File:Britain flag.png|60px|border|link=Category:Britain ground vehicles]]<br>[[:Category:Britain ground vehicles|Britain]]'''<br />
! '''[[File:Japan flag.png|60px|border|link=Category:Japan ground vehicles]]<br>[[:Category:Japan ground vehicles|Japan]]'''<br />
! '''[[File:China flag.png|60px|border|link=Category:China ground vehicles]]<br>[[:Category:China ground vehicles|China]]'''<br />
! '''[[File:Italy flag.png|60px|border|link=Category:Italy ground vehicles]]<br>[[:Category:Italy ground vehicles|Italy]]'''<br />
! '''[[File:France flag.png|60px|border|link=Category:France ground vehicles]]<br>[[:Category:France ground vehicles|France]]'''<br />
! '''[[File:Sweden flag.png|60px|border|link=Category:Sweden ground vehicles]]<br>[[:Category:Sweden ground vehicles|Sweden]]'''<br />
! '''[[File:Israel flag.png|60px|border|link=Category:Israel ground vehicles]]<br>[[:Category:Israel ground vehicles|Israel]]'''<br />
|-<br />
| style="text-align:center" | I<br />
| {{Specs-Link|us_lvt_a_4}}<br>{{Specs-Link|us_halftrack_m3_75mm_gmc}}<br>{{Specs-Link|us_m8_scott}}<br>{{Specs-Link|us_m8a1}}<br />
| {{Specs-Link|germ_nbfz_VI}}<br>{{Specs-Link|germ_pzkpfw_IV_ausf_C}}<br>{{Specs-Link|germ_pzkpfw_IV_ausf_E}}<br>{{Specs-Link|germ_sdkfz_234_3}}<br>{{Specs-Link|germ_stug_III_ausf_A}}<br />
| {{Specs-Link|ussr_m3c}}<br>{{Specs-Link|ussr_su_76m_1943}}<br />
| <br />
| <br />
| {{Specs-Link|cn_m8_scott}}<br>{{Specs-Link|cn_su_76m_1943}}<br />
| <br />
| <br />
| {{Specs-Link|sw_ikv_72}}<br />
| <br />
|-<br />
| style="text-align:center" | II<br />
| {{Specs-Link|us_mk1_grant}}<br>{{Specs-Link|us_m3_lee}}<br>{{Specs-Link|us_m4_sherman}}<br>{{Specs-Link|us_m4a1_1942_sherman}}<br>{{Specs-Link|us_m4a3_105_sherman}}<br>{{Specs-Link|us_m24_chaffee}}<br>{{Specs-Link|us_m24_chaffee_tl}}<br />
| {{Specs-Link|germ_pzkpfw_38t_Marder_III_ausf_H}}<br>{{Specs-Link|germ_pzkpfw_III_ausf_N}}<br>{{Specs-Link|germ_pzkpfw_IV_ausf_F}}<br>{{Specs-Link|germ_pzkpfw_IV_ausf_F2}}<br>{{Specs-Link|germ_pzkpfw_IV_ausf_G}}<br>{{Specs-Link|germ_sdkfz_251_22}}<br>{{Specs-Link|germ_stug_III_ausf_F}}<br>{{Specs-Link|germ_stug_III_ausf_G}}<br>{{Specs-Link|germ_stuh_III_ausf_G}}<br />
| {{Specs-Link|ussr_bt_7a_f32}}<br>{{Specs-Link|ussr_kv_1s}}<br>{{Specs-Link|ussr_a_12_mk_2_matilda_2A_F96}}<br>{{Specs-Link|ussr_su_76d}}<br>{{Specs-Link|ussr_su_76m_5st_kav_corps}}<br>{{Specs-Link|ussr_su_122}}<br>{{Specs-Link|ussr_t_34_1941_cast_turret}}<br>{{Specs-Link|ussr_t_34_1941}}<br>{{Specs-Link|ussr_t_34_1942}}<br>{{Specs-Link|ussr_t_34E}}<br>{{Specs-Link|ussr_t_34E_STZ}}<br />
| {{Specs-Link|uk_17_pdr_m10_achilles}}<br>{{Specs-Link|uk_sp_17_pdr_valentine}}<br>{{Specs-Link|uk_a_22_mk_1_churchill_1941}}<br>{{Specs-Link|uk_a27m_cromwell_5}}<br>{{Specs-Link|uk_a27m_cromwell_5_rp3}}<br>{{Specs-Link|uk_mk1_grant}}<br>{{Specs-Link|uk_sherman_II}}<br>{{Specs-Link|uk_valentine_mk_11}}<br />
| {{Specs-Link|jp_type_3_chi_nu}}<br>{{Specs-Link|jp_type_2_ho_i}}<br>{{Specs-Link|jp_type_3_ho_ni_I}}<br>{{Specs-Link|jp_type_3_ho_ni_III}}<br />
| {{Specs-Link|cn_m4a4_sherman_1st_ptg}}<br>{{Specs-Link|cn_m4a4_sherman}}<br>{{Specs-Link|cn_m24_chaffee}}<br>{{Specs-Link|cn_t_34_1942}}<br />
| {{Specs-Link|it_semovente_m41_75_18}}<br>{{Specs-Link|it_semovente_m41_75_32}}<br>{{Specs-Link|it_m24_chaffee}}<br>{{Specs-Link|it_pzkpfw_III_ausf_N}}<br />
| {{Specs-Link|fr_amx_13_chaffee}}<br>{{Specs-Link|fr_m4a1_sherman}}<br>{{Specs-Link|fr_m4a3_105_sherman}}<br />
| {{Specs-Link|sw_ikv_73}}<br>{{Specs-Link|sw_sav_m43_1944}}<br>{{Specs-Link|sw_strv_m42_eh}}<br />
| <br />
|-<br />
| style="text-align:center" | III<br />
| {{Specs-Link|us_m4_sherman_calliope}}<br>{{Specs-Link|us_m4a3e2_sherman_jumbo_cobra_king}}<br>{{Specs-Link|us_m4a1_76w_sherman}}<br>{{Specs-Link|us_m4a2_sherman}}<br>{{Specs-Link|us_m4a2_76w_sherman}}<br>{{Specs-Link|us_m4a3e2_sherman_jumbo}}<br>{{Specs-Link|us_m18_hellcat_black_cat}}<br>{{Specs-Link|us_m18_hellcat}}<br>{{Specs-Link|us_t14}}<br />
| {{Specs-Link|germ_jgdpz_38t}}<br>{{Specs-Link|germ_jgdpz_IV_L48}}<br>{{Specs-Link|us_m4a2_1944_germ}}<br>{{Specs-Link|germ_panzerbefelhswagen_IV_ausf_J}}<br>{{Specs-Link|germ_pzkpfw_IV_ausf_H}}<br>{{Specs-Link|germ_pzkpfw_IV_ausf_J}}<br>{{Specs-Link|germ_sdkfz_234_4}}<br />
| {{Specs-Link|ussr_kv_1_zis_5}}<br>{{Specs-Link|ussr_kv_1e}}<br />
| {{Specs-Link|uk_ac4_thunderbolt}}<br>{{Specs-Link|uk_17_pdr_m10_achilles_norfolk_yeomanry}}<br>{{Specs-Link|uk_a30_sp_avenger}}<br>{{Specs-Link|uk_a30_challenger}}<br>{{Specs-Link|uk_a_22f_mk_7_churchill_1944}}<br>{{Specs-Link|uk_a_33_excelsior}}<br>{{Specs-Link|uk_sherman_vc_firefly}}<br>{{Specs-Link|uk_sherman_ic_firefly}}<br />
| {{Specs-Link|jp_m4a3e8_76w_sherman}}<br>{{Specs-Link|jp_m24_chaffee}}<br />
| {{Specs-Link|cn_m4a1_76w_sherman}}<br>{{Specs-Link|cn_m18_hellcat}}<br />
| {{Specs-Link|it_sherman_VII}}<br>{{Specs-Link|it_m4a4_sherman}}<br>{{Specs-Link|it_m18_hellcat}}<br>{{Specs-Link|it_pzkpfw_IV_ausf_G}}<br>{{Specs-Link|it_sherman_vc_firefly}}<br>{{Specs-Link|it_stug_III_ausf_G}}<br />
| {{Specs-Link|fr_amx_13_fl_11}}<br>{{Specs-Link|fr_panhard_ebr_1951}}<br>{{Specs-Link|fr_lorraine_155}}<br>{{Specs-Link|fr_m4a3e2_sherman_jumbo}}<br>{{Specs-Link|fr_m4a4_sherman}}<br />
| <br />
| <br />
|-<br />
| style="text-align:center" | IV<br />
| {{Specs-Link|us_m4a3e8_76w_sherman}}<br>{{Specs-Link|us_m4a3e2_76w_sherman_jumbo}}<br>{{Specs-Link|us_m26_pershing}}<br>{{Specs-Link|us_m26_t99}}<br>{{Specs-Link|us_m36}}<br>{{Specs-Link|us_m41_walker_bulldog}}<br>{{Specs-Link|us_m46_patton_73_armor_bat}}<br>{{Specs-Link|us_m56_scorpion}}<br>{{Specs-Link|us_t26e5}}<br>{{Specs-Link|us_t30}}<br />
| <br />
| {{Specs-Link|ussr_su_100_1945}}<br>{{Specs-Link|ussr_su_100p}}<br>{{Specs-Link|ussr_t_34_100}}<br>{{Specs-Link|ussr_t_44_100}}<br />
| {{Specs-Link|uk_a_43_black_prince}}<br>{{Specs-Link|uk_fv221_caernarvon}}<br>{{Specs-Link|uk_centurion_action_x}}<br>{{Specs-Link|uk_centurion_mk_1}}<br>{{Specs-Link|uk_centurion_mk_3}}<br>{{Specs-Link|uk_charioteer_mk_7}}<br>{{Specs-Link|uk_eland_90_mk_7}}<br>{{Specs-Link|uk_fv4202}}<br>{{Specs-Link|uk_ratel_90}}<br>{{Specs-Link|uk_centurion_mk_3_ss11}}<br />
| {{Specs-Link|jp_m41_walker_bulldog}}<br>{{Specs-Link|jp_st_a1}}<br>{{Specs-Link|jp_st_a2}}<br>{{Specs-Link|jp_st_a3}}<br>{{Specs-Link|jp_type_61}}<br>{{Specs-Link|jp_type_75}}<br />
| {{Specs-Link|cn_m36}}<br>{{Specs-Link|cn_su_100_1945}}<br />
| {{Specs-Link|it_fiat_6616_cockerill}}<br>{{Specs-Link|it_m26_ariete}}<br>{{Specs-Link|it_m26a1_pershing}}<br>{{Specs-Link|it_m36b1}}<br />
| {{Specs-Link|fr_aml_90}}<br>{{Specs-Link|fr_panhard_ebr_1963}}<br />
| {{Specs-Link|sw_ikv_103}}<br>{{Specs-Link|sw_strv_81}}<br>{{Specs-Link|sw_strv_81_rb52}}<br />
| {{Specs-Link|il_m_51_w}}<br />
|-<br />
| style="text-align:center" | V<br />
| {{Specs-Link|us_m46_patton}}<br>{{Specs-Link|us_m47_patton_II}}<br>{{Specs-Link|us_m48a1_patton_III}}<br>{{Specs-Link|us_m60}}<br>{{Specs-Link|us_m103}}<br>{{Specs-Link|us_magach_3}}<br />
| {{Specs-Link|germ_marder_df_105}}<br>{{Specs-Link|germ_pzkpfw_e_100}}<br>{{Specs-Link|germ_mkpz_m48a2c}}<br>{{Specs-Link|germ_pzkpfw_Maus}}<br>{{Specs-Link|germ_mkpz_m47}}<br />
| {{Specs-Link|ussr_t_54_1947}}<br>{{Specs-Link|ussr_t_54_1949}}<br>{{Specs-Link|ussr_t_54_1951}}<br />
| {{Specs-Link|uk_centurion_mk_5_raac}}<br />
| {{Specs-Link|jp_m47_patton_II}}<br>{{Specs-Link|jp_st_b1}}<br />
| {{Specs-Link|cn_m48a1_patton_III}}<br />
| {{Specs-Link|it_c13_t90}}<br>{{Specs-Link|it_m60a1_ariete}}<br>{{Specs-Link|it_of_40_mk_1}}<br />
| {{Specs-Link|fr_amx_13_90}}<br>{{Specs-Link|fr_amx_30}}<br>{{Specs-Link|fr_amx_30_1972}}<br />
| {{Specs-Link|sw_strv_101}}<br>{{Specs-Link|sw_strv_103_0}}<br>{{Specs-Link|sw_strv_103a}}<br />
| <br />
|-<br />
| style="text-align:center" | VI<br />
| {{Specs-Link|us_m1_ip_abrams}}<br>{{Specs-Link|us_m1_abrams}}<br>{{Specs-Link|us_m60a1}}<br>{{Specs-Link|us_m60a1_rise_passive_era}}<br>{{Specs-Link|us_m60a3_tts}}<br>{{Specs-Link|us_mbt_70}}<br>{{Specs-Link|us_merkava_mk_1}}<br>{{Specs-Link|us_merkava_mk_2b_late}}<br>{{Specs-Link|us_t95e1}}<br>{{Specs-Link|us_xm_8}}<br>{{Specs-Link|us_xm1_chrysler}}<br>{{Specs-Link|us_xm1_gm}}<br>{{Specs-Link|us_xm_803}}<br />
| {{Specs-Link|germ_sk105_a2}}<br>{{Specs-Link|germ_kpz_70}}<br>{{Specs-Link|germ_thyssen_henschel_tam}}<br />
| {{Specs-Link|ussr_object_685}}<br>{{Specs-Link|ussr_t_55a}}<br>{{Specs-Link|ussr_t_55_am}}<br />
| {{Specs-Link|uk_challenger_1}}<br>{{Specs-Link|uk_challenger_mk_3}}<br>{{Specs-Link|uk_chieftain_mk_3}}<br>{{Specs-Link|uk_chieftain_mk_5}}<br>{{Specs-Link|uk_chieftain_mk_10}}<br>{{Specs-Link|uk_olifant_mk_1a}}<br>{{Specs-Link|uk_centurion_shot_kal_d}}<br>{{Specs-Link|uk_vickers_mk7}}<br />
| {{Specs-Link|jp_type_74}}<br>{{Specs-Link|jp_type_74_f}}<br>{{Specs-Link|jp_type_74_mod_g_kai}}<br />
| {{Specs-Link|cn_cm11}}<br>{{Specs-Link|cn_m_41d}}<br>{{Specs-Link|cn_m60a3_tts}}<br />
| {{Specs-Link|it_b1_centauro}}<br>{{Specs-Link|it_b1_centauro_romor}}<br>{{Specs-Link|it_of_40_mtca}}<br>{{Specs-Link|it_of_40_mk_2a}}<br />
| {{Specs-Link|fr_amx_10rc}}<br>{{Specs-Link|fr_amx_30_super}}<br>{{Specs-Link|fr_amx_30_b2}}<br>{{Specs-Link|fr_amx_30_b2_brenus}}<br>{{Specs-Link|fr_mars_15}}<br>{{Specs-Link|fr_sk105_a2}}<br />
| {{Specs-Link|sw_ikv_91_105}}<br>{{Specs-Link|sw_strv_103c}}<br>{{Specs-Link|sw_strv_104}}<br />
| {{Specs-Link|il_merkava_mk_2d}}<br />
|-<br />
| style="text-align:center" | VII<br />
| <br />
| <br />
| <br />
| {{Specs-Link|uk_challenger_II}}<br>{{Specs-Link|uk_challenger_2_dorchester}}<br>{{Specs-Link|uk_challenger_2_tes}}<br />
| {{Specs-Link|jp_type_16}}<br />
| <br />
| <br />
| <br />
| <br />
| <br />
|-<br />
|}<br />
<br />
==== Smoke Launchers ====<br />
{| class="wikitable" width="100%"<br />
|-<br />
! style="text-align:center" | '''Rank'''<br />
! '''[[File:USA flag.png|60px|border|link=Category:USA ground vehicles]]<br>[[:Category:USA ground vehicles|USA]]'''<br />
! '''[[File:Germany flag.png|60px|border|link=Category:Germany ground vehicles]]<br>[[:Category:Germany ground vehicles|Germany]]'''<br />
! '''[[File:USSR flag.png|60px|border|link=Category:USSR ground vehicles]]<br>[[:Category:USSR ground vehicles|USSR]]'''<br />
! '''[[File:Britain flag.png|60px|border|link=Category:Britain ground vehicles]]<br>[[:Category:Britain ground vehicles|Britain]]'''<br />
! '''[[File:Japan flag.png|60px|border|link=Category:Japan ground vehicles]]<br>[[:Category:Japan ground vehicles|Japan]]'''<br />
! '''[[File:China flag.png|60px|border|link=Category:China ground vehicles]]<br>[[:Category:China ground vehicles|China]]'''<br />
! '''[[File:Italy flag.png|60px|border|link=Category:Italy ground vehicles]]<br>[[:Category:Italy ground vehicles|Italy]]'''<br />
! '''[[File:France flag.png|60px|border|link=Category:France ground vehicles]]<br>[[:Category:France ground vehicles|France]]'''<br />
! '''[[File:Sweden flag.png|60px|border|link=Category:Sweden ground vehicles]]<br>[[:Category:Sweden ground vehicles|Sweden]]'''<br />
! '''[[File:Israel flag.png|60px|border|link=Category:Israel ground vehicles]]<br>[[:Category:Israel ground vehicles|Israel]]'''<br />
|-<br />
| style="text-align:center" | I<br />
| <br />
| {{Specs-Link|germ_pzkpfw_38t_ausf_F}}<br>{{Specs-Link|germ_pzkpfw_III_ausf_B}}<br>{{Specs-Link|germ_pzkpfw_III_ausf_E}}<br>{{Specs-Link|germ_pzkpfw_III_ausf_F}}<br>{{Specs-Link|germ_pzkpfw_IV_ausf_C}}<br>{{Specs-Link|germ_pzkpfw_IV_ausf_E}}<br>{{Specs-Link|germ_stug_III_ausf_A}}<br />
| <br />
| {{Specs-Link|uk_a_13_mk1}}<br>{{Specs-Link|uk_a_13_mk1_3rd_rtr}}<br>{{Specs-Link|uk_a_13_mk2}}<br>{{Specs-Link|uk_a_13_mk2_1939}}<br>{{Specs-Link|uk_daimler_mk_2}}<br>{{Specs-Link|uk_a17_mk_1_tetrarch}}<br />
| {{Specs-Link|jp_type_95_ha_go_commander}}<br />
| <br />
| <br />
| <br />
| <br />
| <br />
|-<br />
| style="text-align:center" | II<br />
| {{Specs-Link|us_mk1_grant}}<br>{{Specs-Link|us_m4a3_105_sherman}}<br>{{Specs-Link|us_m24_chaffee}}<br>{{Specs-Link|us_m24_chaffee_tl}}<br>{{Specs-Link|us_t18_e2}}<br />
| {{Specs-Link|germ_pzkpfw_38t_Marder_III}}<br>{{Specs-Link|germ_pzkpfw_III_ausf_M}}<br>{{Specs-Link|germ_pzkpfw_III_ausf_N}}<br>{{Specs-Link|germ_pzkpfw_IV_ausf_F}}<br>{{Specs-Link|germ_pzkpfw_IV_ausf_F2}}<br>{{Specs-Link|germ_pzkpfw_IV_ausf_G}}<br>{{Specs-Link|germ_sdkfz_234_2}}<br>{{Specs-Link|germ_sdkfz_234_2_td}}<br>{{Specs-Link|germ_stug_III_ausf_F}}<br />
| {{Specs-Link|ussr_a_12_mk_2_matilda_2A_F96}}<br>{{Specs-Link|ussr_valentine_mk_9}}<br />
| {{Specs-Link|uk_armored_car_aec_mk_2}}<br>{{Specs-Link|uk_a_22_mk_1_churchill_1941}}<br>{{Specs-Link|uk_a27m_cromwell_1}}<br>{{Specs-Link|uk_a27m_cromwell_5}}<br>{{Specs-Link|uk_a27m_cromwell_5_rp3}}<br>{{Specs-Link|uk_crusader_mk_2_the_saint}}<br>{{Specs-Link|uk_crusader_mk_2}}<br>{{Specs-Link|uk_crusader_mk_3}}<br>{{Specs-Link|uk_mk1_grant}}<br>{{Specs-Link|uk_a_12_mk_2_matilda_2}}<br>{{Specs-Link|uk_marmon_herrington_mk_6_2pdr}}<br>{{Specs-Link|uk_marmon_herrington_mk_6_6pdr}}<br>{{Specs-Link|uk_valentine_mk_1}}<br>{{Specs-Link|uk_valentine_mk_9}}<br>{{Specs-Link|uk_valentine_mk_11}}<br />
| <br />
| {{Specs-Link|cn_m3a3_stuart}}<br>{{Specs-Link|cn_m24_chaffee}}<br />
| {{Specs-Link|it_semovente_m42_75_34}}<br>{{Specs-Link|it_semovente_m43_75_34}}<br>{{Specs-Link|it_semovente_m43_105}}<br>{{Specs-Link|it_m3a3_stuart}}<br>{{Specs-Link|it_m15_42}}<br>{{Specs-Link|it_m24_chaffee}}<br>{{Specs-Link|it_m15_42_contraereo}}<br>{{Specs-Link|it_p_40}}<br>{{Specs-Link|it_p_26_40}}<br>{{Specs-Link|it_pzkpfw_III_ausf_N}}<br />
| {{Specs-Link|fr_amx_13_chaffee}}<br>{{Specs-Link|fr_crusader_mk_2}}<br>{{Specs-Link|fr_m3a3_stuart}}<br>{{Specs-Link|fr_m4a3_105_sherman}}<br />
| {{Specs-Link|sw_pbv_301}}<br>{{Specs-Link|sw_sav_fm48}}<br />
| <br />
|-<br />
| style="text-align:center" | III<br />
| <br />
| {{Specs-Link|germ_jgdpz_IV_L48}}<br>{{Specs-Link|us_m4a2_1944_germ}}<br>{{Specs-Link|germ_pzkpfw_V_ausf_d_panther}}<br>{{Specs-Link|germ_pz_IV_L70_A}}<br>{{Specs-Link|germ_pz_IV_L70}}<br>{{Specs-Link|germ_pzkpfw_IV_ausf_J}}<br>{{Specs-Link|germ_infanterie_kampfpanzer_churchill}}<br>{{Specs-Link|germ_pzsflk40_sturer_emil}}<br>{{Specs-Link|germ_pzkpfw_VI_ausf_h1_tiger_animal_version}}<br>{{Specs-Link|germ_pzkpfw_VI_ausf_e_tiger}}<br>{{Specs-Link|germ_pzkpfw_VI_ausf_h1_tiger}}<br />
| {{Specs-Link|ussr_pzkpfw_V}}<br />
| {{Specs-Link|uk_a30_challenger}}<br>{{Specs-Link|uk_a_22b_mk_3_churchill_1942}}<br>{{Specs-Link|uk_a_22f_mk_7_churchill_1944}}<br>{{Specs-Link|uk_a_34_comet}}<br>{{Specs-Link|uk_a_34_comet_iron_duke}}<br>{{Specs-Link|uk_a_33_excelsior}}<br>{{Specs-Link|uk_sherman_vc_firefly}}<br>{{Specs-Link|uk_sherman_ic_firefly}}<br />
| {{Specs-Link|jp_m24_chaffee}}<br />
| <br />
| {{Specs-Link|it_semovente_m43_75_46}}<br>{{Specs-Link|it_sherman_VII}}<br>{{Specs-Link|it_semovente_m43_105_leoncello}}<br>{{Specs-Link|it_pzkpfw_IV_ausf_G}}<br>{{Specs-Link|it_sherman_vc_firefly}}<br>{{Specs-Link|it_stug_III_ausf_G}}<br />
| {{Specs-Link|fr_amx_13_fl_11}}<br>{{Specs-Link|fr_panhard_ebr_1951}}<br>{{Specs-Link|fr_panhard_ebr_1954}}<br>{{Specs-Link|fr_m4a1_sherman_fl_10}}<br />
| <br />
| <br />
|-<br />
| style="text-align:center" | IV<br />
| <br />
| {{Specs-Link|germ_panzerbefelhswagen_jagdpanther}}<br>{{Specs-Link|germ_flakpanzer_V_Coelian}}<br>{{Specs-Link|germ_panzerjager_panther}}<br>{{Specs-Link|germ_kanonenjagdpanzer}}<br>{{Specs-Link|germ_le_kpz_m41}}<br>{{Specs-Link|germ_pzkpfw_V_ausf_a_panther}}<br>{{Specs-Link|germ_pzkpfw_V_ausf_f_panther}}<br>{{Specs-Link|germ_pzkpfw_V_ausf_g_panther}}<br>{{Specs-Link|germ_panther_II}}<br>{{Specs-Link|germ_ru251}}<br>{{Specs-Link|germ_pzkpfw_VI_ausf_b_tiger_IIh}}<br>{{Specs-Link|germ_pzkpfw_VI_ausf_b_tiger_IIh_sla}}<br>{{Specs-Link|germ_pzkpfw_VI_ausf_b_tiger_IIp}}<br />
| {{Specs-Link|ussr_asu_85}}<br>{{Specs-Link|ussr_pt_76_57}}<br>{{Specs-Link|ussr_t_34_100}}<br>{{Specs-Link|ussr_t_44_100}}<br>{{Specs-Link|ussr_type_62}}<br />
| {{Specs-Link|uk_a_43_black_prince}}<br>{{Specs-Link|uk_fv221_caernarvon}}<br>{{Specs-Link|uk_centurion_action_x}}<br>{{Specs-Link|uk_centurion_mk_1}}<br>{{Specs-Link|uk_centurion_mk_3}}<br>{{Specs-Link|uk_charioteer_mk_7}}<br>{{Specs-Link|uk_fv4004_conway}}<br>{{Specs-Link|uk_eland_90_mk_7}}<br>{{Specs-Link|uk_fv4202}}<br>{{Specs-Link|uk_ratel_90}}<br>{{Specs-Link|uk_centurion_mk_3_ss11}}<br>{{Specs-Link|uk_a39_tortoise}}<br />
| {{Specs-Link|jp_type_61}}<br />
| {{Specs-Link|cn_type_62}}<br />
| {{Specs-Link|it_fiat_6616_cockerill}}<br>{{Specs-Link|it_fiat_6614_106sr}}<br />
| {{Specs-Link|fr_aml_90}}<br>{{Specs-Link|fr_amx_13_75}}<br>{{Specs-Link|fr_amx_13_75_ss11}}<br>{{Specs-Link|fr_bat_chat_25t}}<br>{{Specs-Link|fr_panhard_ebr_1963}}<br>{{Specs-Link|fr_pzkpfw_V_panther_dauphine}}<br />
| {{Specs-Link|sw_ikv_91}}<br>{{Specs-Link|sw_strv_74}}<br>{{Specs-Link|sw_strv_81}}<br>{{Specs-Link|sw_strv_81_rb52}}<br />
| {{Specs-Link|il_m_51_w}}<br />
|-<br />
| style="text-align:center" | V<br />
| {{Specs-Link|us_magach_3}}<br />
| {{Specs-Link|germ_marder_df_105}}<br>{{Specs-Link|germ_pzkpfw_e_100}}<br>{{Specs-Link|germ_panzerjager_tiger}}<br>{{Specs-Link|germ_leopard_I}}<br>{{Specs-Link|germ_mkpz_m48a2c}}<br>{{Specs-Link|germ_marder_1a3}}<br>{{Specs-Link|germ_marder_1a1}}<br>{{Specs-Link|germ_pzkpfw_Maus}}<br>{{Specs-Link|germ_mkpz_m47}}<br>{{Specs-Link|germ_raketenjagdpanzer_2}}<br>{{Specs-Link|germ_bmp_1_ddr}}<br>{{Specs-Link|germ_pzkpfw_VI_ausf_b_tiger_IIh_kwk46}}<br />
| {{Specs-Link|ussr_bmp_1}}<br>{{Specs-Link|ussr_is_3}}<br>{{Specs-Link|ussr_is_4m}}<br>{{Specs-Link|ussr_is_7}}<br>{{Specs-Link|ussr_object_268}}<br>{{Specs-Link|ussr_su_122_54}}<br>{{Specs-Link|ussr_t_10a}}<br>{{Specs-Link|ussr_t_54_1947}}<br>{{Specs-Link|ussr_t_54_1949}}<br>{{Specs-Link|ussr_t_54_1951}}<br />
| {{Specs-Link|uk_centurion_mk_10}}<br>{{Specs-Link|uk_centurion_mk_5_avre_era}}<br>{{Specs-Link|uk_conqueror_mk_2}}<br>{{Specs-Link|uk_ratel_20}}<br>{{Specs-Link|uk_fv102_striker}}<br>{{Specs-Link|uk_fv438_swingfire}}<br>{{Specs-Link|uk_vickers_mbt_mk_1}}<br>{{Specs-Link|uk_vickers_mbt_mk_3}}<br />
| {{Specs-Link|jp_st_b1}}<br>{{Specs-Link|jp_type_74_c}}<br>{{Specs-Link|jp_type_87_rcv}}<br />
| {{Specs-Link|cn_ptl_02}}<br>{{Specs-Link|cn_type_86}}<br>{{Specs-Link|cn_ztz_59a}}<br />
| {{Specs-Link|it_aubl_74_60_70m}}<br>{{Specs-Link|it_c13_t90}}<br>{{Specs-Link|it_m60a1_ariete}}<br>{{Specs-Link|it_of_40_mk_1}}<br />
| {{Specs-Link|fr_amx_13_90}}<br>{{Specs-Link|fr_amx_30}}<br>{{Specs-Link|fr_amx_30_1972}}<br>{{Specs-Link|fr_amx_50_surbaisse}}<br />
| {{Specs-Link|sw_strv_101}}<br>{{Specs-Link|sw_strv_103a}}<br />
| <br />
|-<br />
| style="text-align:center" | VI<br />
| {{Specs-Link|us_m1_ip_abrams}}<br>{{Specs-Link|us_m1_abrams}}<br>{{Specs-Link|us_m3_bradley}}<br>{{Specs-Link|us_m3a3_bradley}}<br>{{Specs-Link|us_m60a1_rise_passive_era}}<br>{{Specs-Link|us_m60a2}}<br>{{Specs-Link|us_m60a3_tts}}<br>{{Specs-Link|us_m247}}<br>{{Specs-Link|us_m551}}<br>{{Specs-Link|us_m901_itv}}<br>{{Specs-Link|us_mbt_70}}<br>{{Specs-Link|us_merkava_mk_1}}<br>{{Specs-Link|us_merkava_mk_2b_late}}<br>{{Specs-Link|us_xm_8}}<br>{{Specs-Link|us_xm_803}}<br />
| {{Specs-Link|germ_leopard_c2_mexas}}<br>{{Specs-Link|germ_th_800_bismark}}<br>{{Specs-Link|germ_flakpz_I_Gepard}}<br>{{Specs-Link|germ_sk105_a2}}<br>{{Specs-Link|germ_kpz_70}}<br>{{Specs-Link|germ_leopard_1a5}}<br>{{Specs-Link|germ_leopard_2a4}}<br>{{Specs-Link|germ_leopard_2k}}<br>{{Specs-Link|germ_leopard_I_a1}}<br>{{Specs-Link|germ_leopard_a1a1_120}}<br>{{Specs-Link|germ_mkpz_super_m48}}<br>{{Specs-Link|germ_mkpz_m48a2ga2}}<br>{{Specs-Link|germ_wiesel_2_adwc}}<br>{{Specs-Link|germ_radpanzer_90}}<br>{{Specs-Link|germ_raketenjagdpanzer_2_hot}}<br>{{Specs-Link|germ_thyssen_henschel_tam}}<br>{{Specs-Link|germ_thyssen_henschel_tam_2ip}}<br />
| {{Specs-Link|ussr_bmd_4}}<br>{{Specs-Link|ussr_bmp_2}}<br>{{Specs-Link|ussr_bmp_2m}}<br>{{Specs-Link|ussr_bmp_3}}<br>{{Specs-Link|ussr_object_685}}<br>{{Specs-Link|ussr_t_10m}}<br>{{Specs-Link|ussr_t_55_am}}<br>{{Specs-Link|ussr_t_62m1}}<br>{{Specs-Link|ussr_t_64_b_1984}}<br>{{Specs-Link|ussr_t_72a}}<br>{{Specs-Link|ussr_t_72av_turms}}<br>{{Specs-Link|ussr_t_72b}}<br>{{Specs-Link|ussr_t_72b_1989}}<br>{{Specs-Link|ussr_t_80b}}<br />
| {{Specs-Link|uk_challenger_1}}<br>{{Specs-Link|uk_challenger_mk_3}}<br>{{Specs-Link|uk_chieftain_marksman}}<br>{{Specs-Link|uk_chieftain_mk_3}}<br>{{Specs-Link|uk_chieftain_mk_5}}<br>{{Specs-Link|uk_chieftain_mk_10}}<br>{{Specs-Link|uk_olifant_mk_1a}}<br>{{Specs-Link|uk_olifant_mk_2}}<br>{{Specs-Link|uk_rooikat_105_td}}<br>{{Specs-Link|uk_rooikat_76}}<br>{{Specs-Link|uk_centurion_shot_kal_d}}<br>{{Specs-Link|uk_vfm_5}}<br>{{Specs-Link|uk_vickers_mk7}}<br>{{Specs-Link|uk_fv510_isv}}<br>{{Specs-Link|uk_ratel_zt3}}<br />
| {{Specs-Link|jp_type_74}}<br>{{Specs-Link|jp_type_74_f}}<br>{{Specs-Link|jp_type_74_mod_g_kai}}<br>{{Specs-Link|jp_type_87}}<br>{{Specs-Link|jp_type_89}}<br />
| {{Specs-Link|cn_cm11}}<br>{{Specs-Link|cn_cm_25}}<br>{{Specs-Link|cn_m_41d}}<br>{{Specs-Link|cn_m60a3_tts}}<br>{{Specs-Link|cn_pgz_09}}<br>{{Specs-Link|cn_ptz_89}}<br>{{Specs-Link|cn_type_69_2g}}<br>{{Specs-Link|cn_wma_301}}<br>{{Specs-Link|cn_type_59d}}<br>{{Specs-Link|cn_ztz_96}}<br>{{Specs-Link|cn_ztz_96a}}<br />
| {{Specs-Link|it_c1_ariete_preserie}}<br>{{Specs-Link|it_b1_centauro}}<br>{{Specs-Link|it_dardo_vcc}}<br>{{Specs-Link|it_leopard_1a5}}<br>{{Specs-Link|it_of_40_mtca}}<br>{{Specs-Link|it_of_40_mk_2a}}<br>{{Specs-Link|it_vcc_80_hitfist_60}}<br />
| {{Specs-Link|fr_amx_10rc}}<br>{{Specs-Link|fr_amx_13_hot}}<br>{{Specs-Link|fr_amx_30_ACRA}}<br>{{Specs-Link|fr_amx_30_dca}}<br>{{Specs-Link|fr_amx_30_super}}<br>{{Specs-Link|fr_amx_30_b2}}<br>{{Specs-Link|fr_amx_30_b2_brenus}}<br>{{Specs-Link|fr_amx_32}}<br>{{Specs-Link|fr_amx_40}}<br>{{Specs-Link|fr_mars_15}}<br>{{Specs-Link|fr_sk105_a2}}<br />
| {{Specs-Link|sw_cv_90105_tml}}<br>{{Specs-Link|sw_ikv_91_105}}<br>{{Specs-Link|sw_lvkv_90c}}<br>{{Specs-Link|sw_lvrbv_701}}<br>{{Specs-Link|sw_pvrbv_551}}<br>{{Specs-Link|sw_strf_9056}}<br>{{Specs-Link|sw_strf_90b}}<br>{{Specs-Link|sw_strf_90c}}<br>{{Specs-Link|sw_strv_103c}}<br>{{Specs-Link|sw_strv_104}}<br>{{Specs-Link|sw_strv_121}}<br />
| {{Specs-Link|il_merkava_mk_2d}}<br />
|-<br />
| style="text-align:center" | VII<br />
| {{Specs-Link|us_hstv_l}}<br>{{Specs-Link|us_m1a1_abrams}}<br>{{Specs-Link|us_m1a1_hc_abrams}}<br>{{Specs-Link|us_m1a2_abrams}}<br>{{Specs-Link|us_m60a3_slep}}<br>{{Specs-Link|us_m1128_mgs}}<br>{{Specs-Link|us_merkava_mk_3d}}<br />
| {{Specs-Link|germ_flarakpz_1}}<br>{{Specs-Link|germ_flarakrad}}<br>{{Specs-Link|germ_leopard_2pl}}<br>{{Specs-Link|germ_leopard_2a5}}<br>{{Specs-Link|germ_leopard_2a6}}<br>{{Specs-Link|germ_thyssen_henschel_tam_2c}}<br />
| {{Specs-Link|ussr_2s25}}<br>{{Specs-Link|ussr_2s25m}}<br>{{Specs-Link|ussr_t_72b3_2011}}<br>{{Specs-Link|ussr_t_80bvm}}<br>{{Specs-Link|ussr_t_80u}}<br>{{Specs-Link|ussr_t_90a}}<br />
| {{Specs-Link|uk_adats_m113a3}}<br>{{Specs-Link|uk_challenger_II}}<br>{{Specs-Link|uk_challenger_2_dorchester}}<br>{{Specs-Link|uk_challenger_2_tes}}<br>{{Specs-Link|uk_stormer_hvm}}<br>{{Specs-Link|uk_ttd}}<br />
| {{Specs-Link|jp_type_10}}<br>{{Specs-Link|jp_type_16}}<br>{{Specs-Link|jp_type_90}}<br>{{Specs-Link|jp_type_90b}}<br />
| {{Specs-Link|cn_pgz_04a}}<br>{{Specs-Link|cn_ztl_11}}<br>{{Specs-Link|cn_ztz_99}}<br>{{Specs-Link|cn_ztz_99_w}}<br />
| {{Specs-Link|it_c1_ariete}}<br>{{Specs-Link|it_c1_ariete_pso}}<br>{{Specs-Link|it_centauro_mgs_120}}<br>{{Specs-Link|it_otomatic}}<br>{{Specs-Link|it_vcc_80_hitfist_30}}<br />
| {{Specs-Link|fr_leclerc_s1}}<br>{{Specs-Link|fr_leclerc_s2}}<br>{{Specs-Link|fr_leclerc_sxxi}}<br>{{Specs-Link|fr_amx_30_roland}}<br />
| {{Specs-Link|sw_asrad_r}}<br>{{Specs-Link|sw_cv_90120}}<br>{{Specs-Link|sw_strv_122}}<br>{{Specs-Link|sw_strv_122b_plss}}<br />
| <br />
|-<br />
|}<br />
<br />
==== Exhaust Smoke System ====<br />
{| class="wikitable" width="100%"<br />
|-<br />
! style="text-align:center" | '''Rank'''<br />
! '''[[File:USA flag.png|60px|border|link=Category:USA ground vehicles]]<br>[[:Category:USA ground vehicles|USA]]'''<br />
! '''[[File:Germany flag.png|60px|border|link=Category:Germany ground vehicles]]<br>[[:Category:Germany ground vehicles|Germany]]'''<br />
! '''[[File:USSR flag.png|60px|border|link=Category:USSR ground vehicles]]<br>[[:Category:USSR ground vehicles|USSR]]'''<br />
! '''[[File:Britain flag.png|60px|border|link=Category:Britain ground vehicles]]<br>[[:Category:Britain ground vehicles|Britain]]'''<br />
! '''[[File:Japan flag.png|60px|border|link=Category:Japan ground vehicles]]<br>[[:Category:Japan ground vehicles|Japan]]'''<br />
! '''[[File:China flag.png|60px|border|link=Category:China ground vehicles]]<br>[[:Category:China ground vehicles|China]]'''<br />
! '''[[File:Italy flag.png|60px|border|link=Category:Italy ground vehicles]]<br>[[:Category:Italy ground vehicles|Italy]]'''<br />
! '''[[File:France flag.png|60px|border|link=Category:France ground vehicles]]<br>[[:Category:France ground vehicles|France]]'''<br />
! '''[[File:Sweden flag.png|60px|border|link=Category:Sweden ground vehicles]]<br>[[:Category:Sweden ground vehicles|Sweden]]'''<br />
! '''[[File:Israel flag.png|60px|border|link=Category:Israel ground vehicles]]<br>[[:Category:Israel ground vehicles|Israel]]'''<br />
|-<br />
| style="text-align:center" | II<br />
| {{Specs-Link|us_m4a5_ram_2}}<br />
| <br />
| <br />
| <br />
| <br />
| <br />
| <br />
| <br />
| <br />
| <br />
|-<br />
| style="text-align:center" | III<br />
| <br />
| <br />
| {{Specs-Link|ussr_pt_76b}}<br />
| <br />
| <br />
| {{Specs-Link|cn_pt_76}}<br />
| <br />
| <br />
| <br />
| <br />
|-<br />
| style="text-align:center" | IV<br />
| <br />
| <br />
| {{Specs-Link|ussr_pt_76_57}}<br />
| <br />
| <br />
| <br />
| <br />
| <br />
| <br />
| <br />
|-<br />
| style="text-align:center" | V<br />
| <br />
| {{Specs-Link|germ_bmp_1_ddr}}<br />
| {{Specs-Link|ussr_bmp_1}}<br>{{Specs-Link|ussr_object_906}}<br>{{Specs-Link|ussr_t_10a}}<br />
| <br />
| <br />
| {{Specs-Link|cn_type_86}}<br />
| <br />
| <br />
| <br />
| <br />
|-<br />
| style="text-align:center" | VI<br />
| {{Specs-Link|us_m1_ip_abrams}}<br>{{Specs-Link|us_m1_abrams}}<br>{{Specs-Link|us_m3_bradley}}<br>{{Specs-Link|us_m3a3_bradley}}<br>{{Specs-Link|us_m60a1_rise_passive_era}}<br>{{Specs-Link|us_m60a3_tts}}<br>{{Specs-Link|us_merkava_mk_1}}<br>{{Specs-Link|us_merkava_mk_2b_late}}<br />
| <br />
| {{Specs-Link|ussr_bmd_4}}<br>{{Specs-Link|ussr_bmp_2}}<br>{{Specs-Link|ussr_bmp_2m}}<br>{{Specs-Link|ussr_bmp_3}}<br>{{Specs-Link|ussr_it_1}}<br>{{Specs-Link|ussr_object_279}}<br>{{Specs-Link|ussr_object_685}}<br>{{Specs-Link|ussr_9p149}}<br>{{Specs-Link|ussr_t_10m}}<br>{{Specs-Link|ussr_t_55a}}<br>{{Specs-Link|ussr_t_55_am}}<br>{{Specs-Link|ussr_t_62}}<br>{{Specs-Link|ussr_t_62m1}}<br>{{Specs-Link|ussr_t_64a_1971}}<br>{{Specs-Link|ussr_t_64_b_1984}}<br>{{Specs-Link|ussr_t_72a}}<br>{{Specs-Link|ussr_t_72av_turms}}<br>{{Specs-Link|ussr_t_72b}}<br>{{Specs-Link|ussr_t_72b_1989}}<br>{{Specs-Link|ussr_t_80b}}<br />
| {{Specs-Link|uk_challenger_mk_3}}<br>{{Specs-Link|uk_olifant_mk_2}}<br>{{Specs-Link|uk_rooikat_105_td}}<br>{{Specs-Link|uk_rooikat_76}}<br>{{Specs-Link|uk_rooikat_mttd}}<br>{{Specs-Link|uk_centurion_shot_kal_d}}<br>{{Specs-Link|uk_rooikat_za_35}}<br />
| <br />
| {{Specs-Link|cn_m60a3_tts}}<br>{{Specs-Link|cn_t_62}}<br>{{Specs-Link|cn_type_69_2g}}<br>{{Specs-Link|cn_ztz_96}}<br>{{Specs-Link|cn_ztz_96a}}<br />
| <br />
| {{Specs-Link|fr_amx_30_dca}}<br>{{Specs-Link|fr_amx_32}}<br>{{Specs-Link|fr_amx_40}}<br />
| <br />
| {{Specs-Link|il_merkava_mk_2d}}<br />
|-<br />
| style="text-align:center" | VII<br />
| {{Specs-Link|us_adats_bradley}}<br>{{Specs-Link|us_m1a1_abrams}}<br>{{Specs-Link|us_m1a1_hc_abrams}}<br>{{Specs-Link|us_m1a2_abrams}}<br>{{Specs-Link|us_merkava_mk_3d}}<br />
| <br />
| {{Specs-Link|ussr_2s25}}<br>{{Specs-Link|ussr_2s25m}}<br>{{Specs-Link|ussr_9p157}}<br>{{Specs-Link|ussr_t_72b3_2011}}<br>{{Specs-Link|ussr_t_80bvm}}<br>{{Specs-Link|ussr_t_80u}}<br>{{Specs-Link|ussr_t_90a}}<br />
| {{Specs-Link|uk_challenger_II}}<br>{{Specs-Link|uk_challenger_2_dorchester}}<br>{{Specs-Link|uk_challenger_2_tes}}<br>{{Specs-Link|uk_ttd}}<br />
| <br />
| {{Specs-Link|cn_ztz_99}}<br>{{Specs-Link|cn_ztz_99_w}}<br />
| <br />
| <br />
| <br />
| <br />
|-<br />
|}<br />
<br />
==Naval Forces==<br />
<br />
===Effect of smoke screen===<br />
<br />
After researching the "Smokescreen" modification, every naval vessel can deploy a smoke screen with a similar effect to ESS in ground forces. Upon activation, for the next 30 seconds, a screen of smoke will be laid down in the vessel's wake that lasts for about 25 seconds. Each vessel gets five smoke screen uses and must wait a 60 second cooldown between uses. The default key for smoke screen is "G", and it can be remapped at: <br />
<br />
* Controls > Naval > Weaponry > Smoke screening<br />
<br />
Uniquely, the [[PG 02]] can equip the 130 mm Mark 36 SRBOC decoy system, which functions in the same way as smoke launchers in ground forces. There is no keybind for this by default, but it can be remapped at:<br />
<br />
* Controls > Naval > Weaponry > Smoke grenades<br />
<br />
In naval battles, smoke screens can obscure visual contact, break locks, and, in Arcade Battles, hide player names and markers. <br />
<br />
===Hydroplane smoke screens===<br />
<br />
In addition to the standard smokescreen, certain ships can gain the ability to launch aircraft by researching the "Hydroplane" modification. Each plane can lay up to three smokescreens which behave similarly to those layed by surface veesles. The smoke screens begin to dissapate after 30 seconds and completely dissapate after 60 seconds, and there is a 100 seconds cooldown between uses. The default key for hydroplane smoke screens is "Alt+G", which can be remapped at:<br />
<br />
* Controls > Aircraft > Miscellaneous > Hydroplane smoke screen activation<br />
<br />
To begin laying a smoke screen, the aircraft must be at an altitude of 50 meters or less. If the aircraft exceeds that altitude limit at any point while laying a smoke screen, the smoke screen laying will end prematurely. The height of the smoke screen will depend on the course of the aircraft, so in general, it is recommended to fly as close to the upper altitude limit as possible while laying smoke screens. Additionally, the speed of the aircraft does not affect the density or the laying duration of the smoke screen, so traveling at greater speeds will result in a longer smoke screen.<br />
<br />
===Naval vessels with hydroplanes===<br />
{| class="wikitable" width="100%"<br />
|-<br />
! style="text-align:center" | '''Rank'''<br />
! '''[[File:USA flag.png|60px|border|link=Category:USA ships]]<br>[[:Category:USA ships|USA]]'''<br />
! '''[[File:Germany flag.png|60px|border|link=Category:Germany ships]]<br>[[:Category:Germany ships|Germany]]'''<br />
! '''[[File:USSR flag.png|60px|border|link=Category:USSR ships]]<br>[[:Category:USSR ships|USSR]]'''<br />
! '''[[File:Britain flag.png|60px|border|link=Category:Britain ships]]<br>[[:Category:Britain ships|Britain]]'''<br />
! '''[[File:Japan flag.png|60px|border|link=Category:Japan ships]]<br>[[:Category:Japan ships|Japan]]'''<br />
! '''[[File:Italy flag.png|60px|border|link=Category:Italy ships]]<br>[[:Category:Italy ships|Italy]]'''<br />
|-<br />
| style="text-align:center" | III<br />
| {{Specs-Link|us_cruiser_omaha_class_detroit}}<br>{{Specs-Link|us_cruiser_omaha_class_raleigh}}<br>{{Specs-Link|us_cruiser_omaha_class_trenton}}<br />
| <br />
| <br />
| {{Specs-Link|uk_cruiser_enterprise_d52}}<br />
| {{Specs-Link|jp_cruiser_kako}}<br>{{Specs-Link|jp_cruiser_kuma}}<br />
| {{Specs-Link|it_cruiser_bartolomeocolleoni_1940}}<br />
|-<br />
| style="text-align:center" | IV<br />
| {{Specs-Link|us_cruiser_cleveland_class_cleveland}}<br>{{Specs-Link|us_cruiser_brooklyn_class_helena}}<br>{{Specs-Link|us_cruiser_northampton_class}}<br>{{Specs-Link|us_cruiser_pensacola_class}}<br>{{Specs-Link|us_cruiser_portland_class}}<br />
| {{Specs-Link|germ_cruiser_karlsruhe}}<br>{{Specs-Link|germ_cruiser_prinz_eugen}}<br />
| {{Specs-Link|ussr_cruiser_kirov}}<br>{{Specs-Link|ussr_cruiser_voroshilov}}<br />
| {{Specs-Link|uk_cruiser_york}}<br />
| {{Specs-Link|jp_cruiser_agano}}<br>{{Specs-Link|jp_cruiser_furutaka}}<br>{{Specs-Link|jp_cruiser_mogami_mikuma}}<br>{{Specs-Link|jp_cruiser_sendai}}<br />
| {{Specs-Link|it_cruiser_trento}}<br>{{Specs-Link|it_cruiser_zara_class_pola}}<br />
|-<br />
| style="text-align:center" | V<br />
| {{Specs-Link|us_cruiser_brooklyn_class_brooklyn}}<br>{{Specs-Link|us_cruiser_new_orleans_class}}<br />
| {{Specs-Link|germ_cruiser_admiral_graf_spee}}<br>{{Specs-Link|germ_cruiser_admiral_hipper}}<br>{{Specs-Link|germ_battleship_scharnhorst}}<br />
| {{Specs-Link|ussr_cruiser_maxim_gorky}}<br />
| {{Specs-Link|uk_cruiser_kent}}<br>{{Specs-Link|uk_cruiser_london}}<br />
| {{Specs-Link|jp_cruiser_mogami}}<br>{{Specs-Link|jp_cruiser_mogami_suzuya}}<br />
| {{Specs-Link|it_cruiser_zara_class}}<br />
|-<br />
|}<br />
<br />
<!-- ==History==<br />
''To be Filled'' --><br />
<br />
== Media ==<br />
<br />
;Videos<br />
{{Youtube-gallery|PMRsFZzbM1o|'''Modern MBT Cloaking Devices - How do Smoke Grenades Work?''' - ''Kingrora''|CjlJi4l0cBs|'''Smoke grenade dischargers on Leclerc tank''' - ''TankNutDave''}}<br />
<br />
== External links ==<br />
<!--Paste links to sources and external resources, such as:<br />
* ''topic on the official game forum;''<br />
* ''other literature.''--><br />
<br />
===References===<br />
<references /><br />
<br />
[[Category:Game mechanics]]</div>U27474208https://old-wiki.warthunder.com/index.php?title=Dark_Adventurer&diff=107872Dark Adventurer2021-07-29T10:15:11Z<p>U27474208: Updated to 2.7; added penetration by shell and shell details</p>
<hr />
<div>{{Specs-Card<br />
|code=uk_dark_class<br />
|images={{Specs-Card-Image|GarageImage_{{PAGENAME}}.jpg}}<br />
}}<br />
<br />
== Description ==<br />
<!-- ''In the first part of the description, cover the history of the ship's creation and military application. In the second part, tell the reader about using this ship in the game. Add a screenshot: if a beginner player has a hard time remembering vehicles by name, a picture will help them identify the ship in question.'' --><br />
The '''{{Specs|name}}''' is a rank {{Specs|rank}} British motor gun boat {{Battle-rating}}. It was introduced in [[Update 1.83 "Masters of the Sea"]] as part of the British fleet closed beta test. With the split of the naval tech trees in [[Update "New Power"]], {{PAGENAME}} was moved to the coastal fleet tech tree.<br />
<br />
== General info ==<br />
=== Survivability and armour ===<br />
{{Specs-Fleet-Armour}}<br />
<!-- ''Talk about the vehicle's armour. Note the most well-defended and most vulnerable zones, e.g. the ammo magazine. Evaluate the composition of components and assemblies responsible for movement and manoeuvrability. Evaluate the survivability of the primary and secondary armaments separately. Don't forget to mention the size of the crew, which plays an important role in fleet mechanics. Save tips on preserving survivability for the "Usage in battles" section. If necessary, use a graphical template to show the most well-protected or most vulnerable points in the armour.'' --><br />
<br />
Dark Adventurer has the following armour layout:<br />
<br />
* [[8cwt QF Mk I (114 mm)|114 mm 8cwt QF Mk I]] gunshield: 12.7 mm, hardened armour<br />
* Hull: 40 mm, wood<br />
* Superstructure: 15 mm, wood<br />
<br />
[[File:{{PAGENAME}}_internals.png|thumb|{{PAGENAME}} internals (starboard side). Note the ammo racks below the forward gun.]]<br />
<br />
Like most coastal vessels, Dark Adventurer has no practical armour. The gunshields are largely superficial; while they may stop low-calibre machine guns, heavy machine guns and cannons will easily penetrate them at any range. The hull and superstructure are unarmoured and will not stop any sort of gunfire. <br />
<br />
The hull is split into four hull sections. Starting from the bow and working towards the stern, the first section starts at the bow and ends just in front of forward gun; the second ends just after the bridge; the third ends where the fuel tanks end, just in front of the engines; and the fourth ends at the stern. <br />
<br />
Any round with a large enough diameter and explosive mass can hull break Dark Adventurer. In general, this is limited to HE rounds greater with a diameter greater than or equal to 4 inches (102 mm) and with an explosive mass greater than 1.5 kg. At Dark Adventurer's own battle rating, there is only one gun capable of hull-breaking her:<br />
<br />
* the [[8cwt QF Mk I (114 mm)|114 mm 8cwt QF Mk I]], found on Dark Adventurer herself.<br />
<br />
There is one ammunition storage that holds ammunition for both the primary and secondary gun turrets. It is located directly behind the forward gun turret just above the waterline. Destroying it will instantly destroy Dark Adventurer. <br />
<br />
Dark Adventurer has a crew complement of 15. With a stock crew, Dark Adventurer is knocked out when 10 crew are lost; with an aced crew, this is increased to 11. Overall, the survivability is average. <br />
<br />
=== Mobility ===<br />
{{Specs-Fleet-Mobility}}<br />
<!-- ''Write about the ship's mobility. Evaluate its power and manoeuvrability, rudder rerouting speed, stopping speed at full tilt, with its maximum forward and reverse speed.'' --><br />
<br />
{{NavalMobility<br />
|SpeedForwardStockAB = 73<br />
|SpeedBackStockAB = 27<br />
|TurnTimeStockAB = 26.46<br />
|TurnSpeedStockAB = 45.62<br />
<br />
|TurnTimeSpadedAB = 17.53<br />
|TurnSpeedSpadedAB = 28.67<br />
<br />
|SpeedForwardStockRB = 64<br />
|SpeedBackStockRB = 24<br />
|TurnTimeStockRB = 29.42<br />
|TurnSpeedStockRB = 52.03<br />
<br />
|TurnTimeSpadedRB = 23.53<br />
|TurnSpeedSpadedRB = 40.57<br />
}}<br />
<br />
Dark Adventurer has a displacement of 64 tons. <br />
<br />
=== Modifications and economy ===<br />
{{Specs-Economy}}<br />
<br />
The recommended modification research order is:<br />
<br />
* Tool Set<br />
* Fire Protection System<br />
* 40 mm HE clips<br />
* 40 mm AP clips<br />
* Smokescreen<br />
* Propeller Replacement<br />
* Improved Rangefinder<br />
* Artillery Support<br />
<br />
After that, prioritize the rest of the seakeeping modifications first, then finish researching the remaining modifications in whatever order you prefer.<br />
<br />
== Armament ==<br />
{{Specs-Fleet-Armaments}}<br />
=== Primary armament ===<br />
{{Specs-Fleet-Primary}}<br />
<!-- ''Provide information about the characteristics of the primary armament. Evaluate their efficacy in battle based on their reload speed, ballistics and the capacity of their shells. Add a link to the main article about the weapon: <code><nowiki>{{main|Weapon name (calibre)}}</nowiki></code>. Broadly describe the ammunition available for the primary armament, and provide recommendations on how to use it and which ammunition to choose.'' --><br />
{{main|8cwt QF Mk I (114 mm)}}<br />
<br />
The primary armament consists of a single 114 mm 8cwt QF Mk I cannon mounted forwards, with a maximum ammunition load of 100 rounds. Stock, the mount can traverse horizontally at a rate of 26°/s and vertically at a rate of 21°/s; with the "Primary Armament Targeting" modification installed, this is increased to 30°/s and 25°/s respectively. The gun is single-shot with a nominal rate of fire of 12 rounds/min. With a stock crew, it can be reloaded in 6.5 seconds; with an aced crew, this is decreased to 5 seconds. <br />
<br />
{| class="wikitable" style="text-align:center" width="25%"<br />
! colspan="2" | Primary armament guidance<br />
|-<br />
! Horizontal !! Vertical<br />
|-<br />
| ±180° || -8°/+12°<br />
|-<br />
|}<br />
<br />
There is only one ammunition type available:<br />
<br />
* 114 mm HE<br />
<br />
{| class="wikitable" style="text-align:center" width="100%"<br />
! colspan="8" | Penetration statistics<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! rowspan="2" | Type of warhead<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 1,000 m !! 2,500 !! 5,000 m !! 7,500 m !! 10,000 m !! 15,000 m<br />
|-<br />
| 114 mm HE || {{Annotation|HE base fuze|High-Explosive with base fuze}} || 34 || 34 || 34 || 34 || 34 || 34<br />
|-<br />
|}<br />
<br />
{| class="wikitable" style="text-align:center" width="100%"<br />
! colspan="10" | Shell details<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! rowspan="2" | Type of warhead<br />
! rowspan="2" | Velocity (m/s)<br />
! rowspan="2" | Projectile mass (kg)<br />
! rowspan="2" | Fuse delay (m)<br />
! rowspan="2" | Fuse sensitivity (mm)<br />
! rowspan="2" | Explosive mass<br>(TNT equivalent) (kg)<br />
! colspan="3" | Ricochet<br />
|-<br />
! 0% !! 50% !! 100%<br />
|-<br />
| 114 mm HE || {{Annotation|HE base fuze|High-Explosive with base fuze}} || 457|| 6.66 || 0 || 0.1 || 2.9 || 79° || 80° || 81°<br />
|-<br />
|}<br />
<br />
The 114 mm HE round is able to hull break most coastal vessels smaller than subchasers.<br />
<br />
=== Secondary armament ===<br />
{{Specs-Fleet-Secondary}}<br />
<!-- ''Some ships are fitted with weapons of various calibres. Secondary armaments are defined as weapons chosen with the control <code>Select secondary weapon</code>. Evaluate the secondary armaments and give advice on how to use them. Describe the ammunition available for the secondary armament. Provide recommendations on how to use them and which ammunition to choose. Remember that any anti-air armament, even heavy calibre weapons, belong in the next section. If there is no secondary armament, remove this section.'' --><br />
{{main|QF Mark VII (40 mm)}}<br />
<br />
The secondary armament consists of a single 40 mm QF Mk VII cannon mounted aft with a maximum ammunition load of 1500 rounds. Stock, the mount can traverse horizontally at a rate of 34°/s and vertically at a rate of 29°/s; with the "Auxiliary Armament Targeting" modification installed, this is increased to 40°/s and 34°/s respectively. The gun has a magazine capacity of 4 rounds and a cycle rate of fire of 160 rounds/min. With a stock crew, it can be reloaded in 0.49 seconds; with an aced crew, this is decreased to 0.38 seconds. The reload is short enough that there is a seamless transition between magazines, although continuously firing for too long will cause the gun to overheat and jam. This happens after continuously firing for about 1.25 min, or about 200 rounds. There is no noticeable drop in accuracy as the gun overheats.<br />
<br />
{| class="wikitable" style="text-align:center" width="25%"<br />
! colspan="2" | Secondary armament guidance<br />
|-<br />
! Horizontal !! Vertical<br />
|-<br />
| ±180° || -10°/+89°<br />
|-<br />
|}<br />
<br />
There are three ammunition types available:<br />
<br />
* Universal: {{Annotation|AP-T|Armour-piercing tracer}}{{-}}{{Annotation|HEFI-T|High-explosive fragmentary incendiary tracer}}<br />
* 40 mm HE clips: {{Annotation|HEFI-T|High-explosive fragmentary incendiary tracer}}{{-}}{{Annotation|HEFI-T|High-explosive fragmentary incendiary tracer}}{{-}}{{Annotation|HEFI-T|High-explosive fragmentary incendiary tracer}}{{-}}{{Annotation|AP-T|Armour-piercing tracer}}<br />
* 40 mm AP clips: {{Annotation|AP-T|Armour-piercing tracer}}{{-}}{{Annotation|AP-T|Armour-piercing tracer}}{{-}}{{Annotation|AP-T|Armour-piercing tracer}}{{-}}{{Annotation|HEFI-T|High-explosive fragmentary incendiary tracer}}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="7" | Penetration statistics (belt)<br />
|-<br />
! rowspan="2" data-sort-type="text" | Belt<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| Universal || 80 || 77 || 66 || 57 || 50 || 45<br />
|-<br />
| 40 mm HE clips || 80 || 77 || 66 || 57 || 50 || 45<br />
|-<br />
| 40 mm AP clips || 80 || 77 || 66 || 57 || 50 || 45<br />
|-<br />
|}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="8" | Penetration statistics (shell)<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! rowspan="2" | Type of<br>warhead<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| HEFI-T || {{Annotation|HEFI-T|High-explosive fragmentary incendiary tracer}} || 4 || 4 || 4 || 4 || 4 || 4<br />
|-<br />
| AP-T || {{Annotation|AP-T|Armour-piercing tracer}} || 80 || 77 || 66 || 57 || 50 || 45<br />
|-<br />
|}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="10" | Shell details<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! rowspan="2" | Type of<br>warhead<br />
! rowspan="2" | Velocity<br>(m/s)<br />
! rowspan="2" | Projectile<br>Mass (kg)<br />
! rowspan="2" | Fuse delay<br>(m)<br />
! rowspan="2" | Fuse sensitivity<br>(mm)<br />
! rowspan="2" | Explosive Mass<br>(TNT equivalent) (g)<br />
! colspan="3" | Ricochet<br />
|-<br />
! 0% !! 50% !! 100%<br />
|-<br />
| HEF || {{Annotation|HEF|High-explosive fragmentation}} || 881 || 0.9 || N/A || 0.1 || 98.6 || 79° || 80° || 81°<br />
|-<br />
| AP-T || {{Annotation|AP-T|Armour-piercing tracer}} || 874 || 0.88 || N/A || N/A || N/A || 47° || 60° || 65°<br />
|-<br />
|}<br />
<br />
The best ammunition is the 40 mm HE clips because it has the highest ratio of HE rounds to AP rounds. Take mostly 40 mm HE clips along with several 40 mm AP clips for armoured targets. Because of the gun's seamless reload, there is no reason to use the Universal belt once the others are unlocked. <br />
<br />
=== Additional armament ===<br />
{{Specs-Fleet-Additional}}<br />
<!-- ''Describe the available additional armaments of the ship: depth charges, mines, torpedoes. Talk about their positions, available ammunition and launch features such as dead zones of torpedoes. If there is no additional armament, remove this section.'' --><br />
{{main|Mk.VII depth charge}}<br />
<br />
Dark Adventurer has two possible loadouts:<br />
<br />
# Without load<br />
# 2x Mk.VII depth charge<br />
<br />
'''Depth charges'''<br />
<br />
[[File:{{PAGENAME}}_DC_Order.png|thumb|Mk.VII depth charges numbered according to their drop order.]]<br />
<br />
The Mk.VII depth charges are carried amidships in front of the aft gun, one on each side. They are dropped one at a time in the following order:<br />
<br />
# Starboard<br />
# Port<br />
<br />
Before spawning, the detonation time delay can be set anywhere between 3 seconds and 10 seconds.<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="7" | Depth charge characteristics<br />
|-<br />
! Mass (kg)<br />
! Explosive type<br />
! Explosive mass (kg)<br />
! TNT equivalent (kg)<br />
! HE armour penetration (mm)<br />
! Armoured vehicle destruction radius (m)<br />
! Fragment dispersion radius (m)<br />
|-<br />
| 196 || TNT || 130 || 130 || 101 || 8 || 122<br />
|-<br />
|}<br />
<br />
There is almost no practical reason to use depth charges on any naval vessel in the game. Although they usually result in a one-hit kill if used properly, they are extremely situational, requiring the player to close to point-blank ranges to even use them. In almost every case, anytime a depth charge could be used, the guns can be used instead to greater effect. In fact, depth charges tend to actually be a liability in battle, since they essentially act as exposed ammo racks before they're dropped. They can be shot at, and if destroyed, they have a chance to detonate, instantly destroying the boat.<br />
<br />
Despite this, some success can be had in dropping them either next to, or in front of a large, slow target. If dropping them next to the target, remember the depth charge drop order, since it's most likely that only the depth charges dropped on the side closest to the enemy will deal any damage. If dropping in front of the target, rush in from the sides as quickly as possible and drop them all at once directly in front of the target. For both cases, set the depth charge time delay to the minimum 3 seconds, since any higher time delay will only allow the depth charge to sink further away from the target, giving them more time to move out of the way. Again, using depth charges is extremely situational, and they will only be a liability the vast majority of the time, so take them at your own discretion.<br />
<br />
== Usage in battles ==<br />
<!-- ''Describe the technique of using this ship, the characteristics of her use in a team and tips on strategy. Abstain from writing an entire guide – don't try to provide a single point of view, but give the reader food for thought. Talk about the most dangerous opponents for this vehicle and provide recommendations on fighting them. If necessary, note the specifics of playing with this vehicle in various modes (AB, RB, SB).'' --><br />
<br />
Dark Adventurer's main armament, the 114 mm 8cwt QF Mk I, is one of the largest calibre coastal fleet weapons in the game and fires the single strongest HE round of any coastal vessel, allowing it to knock out anything smaller than a sub-chaser. Guns that can hull break are very rare in the coastal fleet, and Dark Adventurer is, by far, the lowest BR vessel equipped with one. However, against sub-chasers and other larger vessels, the damage is lacklustre, often requiring multiple hits to destroy a single hull segment. Additionally, the terrible muzzle velocity and very poor ballistics make the gun difficult to use in practice, with it only really being effective against stationary targets or at very close ranges, within 500 m at most. Additionally, while the muzzle velocity is bad, it isn't quite bad enough to allow the 8cwt QF Mk I to fire from behind cover. Because of this, and despite the one-shot potential, the 8cwt QF Mk I is simply outclassed by the secondary 40 mm QF Mark VII in the vast majority of situations.<br />
<br />
In battle, make the most of the QF Mark VII by switching to manual control with Alt+2. The best advantage of the QF Mark VII over many other coastal weapons is its seamless reload. Without having to worry about reloading, vessels equipped with these types of weapons can be played much more aggressively. However, on Dark Adventurer, the gun is mounted aft, which limits its versatility by preventing it from firing forwards and increasing the time needed to traverse the gun from one side to the other. While being mounted aft does come with some benefits—mainly, it gets destroyed less often—this is an overall net disadvantage and limits Dark Adventurer's effectiveness in comparison with vessels with forward-mounted guns, like {{Specs-Link|uk_dark_class_mtb}}.<br />
<br />
Because of this, try to not be the first to rush into action and avoid meeting enemies head-on as much as possible, since it takes some time to turn the hull to get the QF Mark VII on target. Instead, flank the enemy and try to get into ambush positions behind cover. Once in place, turn the hull around so that the stern is facing towards the enemy and use the QF Mark VII to make short work of anything that passes by, prioritizing armoured targets if possible. Dark Adventurer has a somewhat poor reaction time, so try not to stay in one place for too long to avoid being flanked yourself. Since the hull is already turned around, you can quickly retreat if necessary by using smoke and going forwards. In general, stick to close-range engagements on the flanks with the QF Mark VII, but don't be afraid to switch back to the 8cwt QF Mk I to one-shot tricky opponents either.<br />
<br />
While manually controlling the QF Mark VII, there are several things to keep in mind. First, while you don't have to worry about reloads, the QF Mark VII is one of the few weapons that can overheat, causing it to jam after continuously firing about 200 rounds. This is more than enough for multiple engagements, though, and the overheating doesn't have any noticeable negative effect on accuracy as is the case with some other guns. However, you should still pay attention to the overheating and occasionally retreat to let the gun cool off. The second thing to consider is what to do with the primary 8cwt QF Mk I. This gun is completely useless against aircraft, and under AI control, it is practically worthless against surface targets too. Because of this, it's best to just disable the AI gunners. This keeps the gun loaded, level, and forward-facing for when it's actually needed. This ties into the last thing to be aware of, which is that there will be no AI anti-aircraft defense while playing like this, so always look out for aircraft. The AI gunners are very inaccurate against aircraft unless the enemy is coming directly head-on, so don't bother giving control of the QF Mark VII back to the AI gunners; just try to shoot down enemy aircraft manually.<br />
<br />
=== Pros and cons ===<br />
<!-- ''Summarise and briefly evaluate the vehicle in terms of its characteristics and combat effectiveness. Mark its pros and cons in the bulleted list. Try not to use more than 6 points for each of the characteristics. Avoid using categorical definitions such as "bad", "good" and the like - use substitutions with softer forms such as "inadequate" and "effective".'' --><br />
<br />
'''Pros:'''<br />
<br />
* Primary armament can hull-break most opponents<br />
* Secondary armament: very good damage output, high armour penetration, seamless reload<br />
<br />
'''Cons:'''<br />
<br />
* Primary armament: very low muzzle velocity, low rate of fire, difficult to use<br />
* Secondary armament is mounted aft, cannot fire directly forwards<br />
<br />
== History ==<br />
<!-- ''Describe the history of the creation and combat usage of the ship in more detail than in the introduction. If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the ship and adding a block "/History" (example: <nowiki>https://wiki.warthunder.com/(Ship-name)/History</nowiki>) and add a link to it here using the <code>main</code> template. Be sure to reference text and sources by using <code><nowiki><ref></ref></nowiki></code>, as well as adding them at the end of the article with <code><nowiki><references /></nowiki></code>. This section may also include the ship's dev blog entry (if applicable) and the in-game encyclopedia description (under <code><nowiki>=== In-game description ===</nowiki></code>, also if applicable).'' --><br />
<br />
The Dark-class fast patrol boats, also known as the Admiralty Type "A" Fast Patrol Boat (FPB), were 18 patrol boats used by the Royal Navy, with another 8 built for export. The class was originally ordered in the late 1940s, calling for a new diesel-powered FPB, with Saunders-Roe eventually winning the design contract in early 1952. The Dark-class was built between 1954 and 1958 primarily by Saunders-Roe alongside several other British shipbuilding companies. The Dark-class had interchangeable armaments and could be configured as motor torpedo boats, as motor gun boats, or as minelayers. These armaments include:<br />
<br />
* 4x 21-inch torpedoes<br />
* 1x 40 mm Bofors gun (forward), 2x 21-inch torpedoes<br />
* 1x 40 mm Bofors gun (aft), 1x 4.5-inch cannon (forward)<br />
* 16x mines<br />
<br />
The Dark-class boats had a length of 71 ft. 8 in., a beam of 19 ft. 5 in., a draught of 6 ft. 1 in, and a standard displacement of 50 long tons and were the first of their kind in Royal Navy service to use diesel engines. Each boat was powered by two 18 cylinder Napier Deltic diesel engines, each producing 2,500 bhp and driving a single shaft, with an exhaust port on the port side hull. The first few Dark-class boats were painted entirely in standard grey. However, the port side of the hulls would quickly become stained by the diesel exhaust fumes, even after only a short period of use. Initially, an experimental paint scheme was tried on HMS Dark Biter (P1104) around March 1956 that had the rear hull painted in black with the front hull still in grey. This, too, was found to be unsatisfactory, and eventually, it was decided that the entire hull of the Dark-class boats was to be painted in black.<br />
<br />
Eighteen Dark-class boats served with the Royal Navy. All of these were built with wooden hulls and aluminium decks on aluminium hull frames with the exception of the final boat, the unique HMS Dark Scout (P1116), which had an all-aluminium welded construction, a redesigned bridge, and transom exhaust ports. In addition to these, eight more Dark-class boats were also built for export, all built by Saunders-Roe: two standard boats to Finland; five riveted, all-aluminium boats with an additional electric drive system to Burma; and one standard boat to Japan. A further nine Dark-class boats were planned to be built as well for Royal Navy service, but these were all cancelled in 1955. During the 1960s and 1970s, of the 18 Dark-class boats in Royal Navy service, two were used as target practice with one being sunk. The surviving 17 were sold to various places, including several to Italian law enforcement in the late 1960s.<br />
<br />
HMS Dark Adventurer, pennant number P1101, was the first of the Dark-class boats. She was built by Saunders-Roe in Beaumaris and was completed on 28th October 1954. She was sold in early 1970.<br />
<br />
== Media ==<br />
<!-- ''Excellent additions to the article would be video guides, screenshots from the game, and photos.'' --><br />
<br />
;Skins<br />
* [https://live.warthunder.com/feed/camouflages/?vehicleCountry=britain&vehicleType=ship&vehicleClass=gun_boat&vehicle=uk_dark_class Skins and camouflages for the {{PAGENAME}} from live.warthunder.com.]<br />
<br />
;Images<br />
<gallery mode="packed" heights="200"><br />
File:Dark_class_Newsflash_from_Igromir_2016_001.jpg<br />
File:Dark_class_Newsflash_from_Igromir_2016_002.jpg<br />
</gallery><br />
<br />
;Videos<br />
{{Youtube-gallery|LW_BVvR7CIg|'''The Shooting Range #122''' - ''War Machines'' section at 00:32 discusses Dark Adventurer.}}<br />
<br />
== See also ==<br />
<!-- ''Links to articles on the War Thunder Wiki that you think will be useful for the reader, for example:''<br />
* ''reference to the series of the ship;''<br />
* ''links to approximate analogues of other nations and research trees.'' --><br />
<br />
* {{Specs-Link|uk_dark_class_mtb}}<br />
* {{Specs-Link|uk_brave_borderer}}<br />
<br />
== External links ==<br />
<!-- ''Paste links to sources and external resources, such as:''<br />
* ''topic on the official game forum;''<br />
* ''other literature.'' --><br />
<br />
* [[wt:en/news/4272-development-newsflash-from-igromir-2016-new-ships-and-first-look-at-japanese-ground-forces-en|[Development] Newsflash from IgroMir 2016! New ships and first look at Japanese Ground Forces!]]<br />
* [https://cfv.org.uk/forum/viewtopic.php?t=215 <nowiki>[Coastal Forces Veterans Forum]</nowiki> The British "Dark" Class]<br />
* [http://cfv.org.uk/research/boat/database <nowiki>[Coastal Forces Veterans]</nowiki> Boat Database]<br />
* [http://www.bmpt.org.uk/boat%20histories/Dark%20Class/index.htm <nowiki>[British Military Powerboat Team]</nowiki> Dark Class Boats]<br />
* [http://dave-mills.yolasite.com/saro-dark-class-mtbs.php <nowiki>[mprints.co.uk]</nowiki> SARO Dark Class MTBs]<br />
* [http://cfv.org.uk/research/boat/database <nowiki>[Coastal Forces Veterans]</nowiki> Boat Database]<br />
<br />
{{Britain boats}}</div>U27474208https://old-wiki.warthunder.com/index.php?title=MGB-75&diff=107848MGB-752021-07-29T02:17:44Z<p>U27474208: Updated to 2.7; added penetration by shell and shell details</p>
<hr />
<div>{{Specs-Card<br />
|code=uk_71ft_mgb<br />
|images={{Specs-Card-Image|GarageImage_{{PAGENAME}}.jpg}}<br />
}}<br />
<br />
== Description ==<br />
<!-- ''In the first part of the description, cover the history of the ship's creation and military application. In the second part, tell the reader about using this ship in the game. Add a screenshot: if a beginner player has a hard time remembering vehicles by name, a picture will help them identify the ship in question.'' --><br />
The '''{{Specs|name}}''' is a premium rank {{Specs|rank}} British motor gun boat {{Battle-rating}}. It was introduced in [[Update 1.91 "Night Vision"]]. Originally a rank I vessel, with the split of the naval tech trees in [[Update "New Power"]], {{PAGENAME}} was moved to rank II in the coastal fleet tech tree.<br />
<br />
== General info ==<br />
=== Survivability and armour ===<br />
{{Specs-Fleet-Armour}}<br />
<!-- ''Talk about the vehicle's armour. Note the most well-defended and most vulnerable zones, e.g. the ammo magazine. Evaluate the composition of components and assemblies responsible for movement and manoeuvrability. Evaluate the survivability of the primary and secondary armaments separately. Don't forget to mention the size of the crew, which plays an important role in fleet mechanics. Save tips on preserving survivability for the "Usage in battles" section. If necessary, use a graphical template to show the most well-protected or most vulnerable points in the armour.'' --><br />
<br />
MGB-75 has the following armour layout:<br />
<br />
* [[2pdr QF Mk.IIc (40 mm)|2pdr QF Mk.IIc]] gunshield: 12.7 mm hardened armour<br />
* [[20 mm/70 Oerlikon Mark V (20 mm)|20 mm/70 Oerlikon Mark V]] gunshield: 12.7 mm hardened armour<br />
* Hull: 40 mm, wood<br />
* Superstructure: 15 mm, wood<br />
<br />
[[File:MGB-75_internals.png|thumb|MGB-75 internals (starboard side).]]<br />
<br />
Like most coastal vessels, MGB-75 has no practical armour. The gunshields are largely superficial; while they may stop low-calibre machine guns, heavy machine guns and cannons will easily penetrate them at any range. The hull and superstructure are unarmoured and will not stop any sort of gunfire.<br />
<br />
The hull is split into three hull sections. Starting from the bow and working towards the stern, the first section starts at the bow and ends just in front of forward gun; the second ends after the bridge, forward of the engines; and the third ends at the stern. <br />
<br />
Any round with a large enough diameter and explosive mass can hull break MGB-75. In general, this is limited to HE rounds with a diameter greater than 4 inches (102 mm) and with an explosive mass greater than 1.5 kg. At MGB-75's own battle rating, the only guns that can hull break her are:<br />
<br />
* the [[8cwt QF Mk I (114 mm)|114 mm 8cwt QF Mk I]], found on {{Specs-Link|uk_dark_class}}<!--[[Dark class (FPB 1101)]]-->. <br />
<br />
There are two ammunition storages. The first storage, which holds ammunition for the primary armament, is located in the hull above the waterline, below and slightly in front of the forward gun turret. The second storage, which holds ammunition for both the secondary and AA armament, is located above deck, in the superstructure in front of the aft gun turret. Destroying either will instantly destroy MGB-75. Since it is located in the superstructure, the second ammunition storage is particularly susceptible to detonation by random gunfire or artillery.<br />
<br />
MGB-75 has a crew complement of 12. With a stock crew, MGB-75 is knocked out when 8 crew are lost; with an aced crew, this is increased to 9. Because of the exposed ammunition storages, overall survivability is below-average. <br />
<br />
=== Mobility ===<br />
{{Specs-Fleet-Mobility}}<br />
<!-- ''Write about the ship's mobility. Evaluate its power and manoeuvrability, rudder rerouting speed, stopping speed at full tilt, with its maximum forward and reverse speed.'' --><br />
<br />
{{NavalMobility<br />
|SpeedForwardStockAB = 77<br />
|SpeedBackStockAB = 21<br />
|TurnTimeStockAB = 29.18<br />
|TurnSpeedStockAB = 43<br />
<br />
|TurnTimeSpadedAB = 19.63<br />
|TurnSpeedSpadedAB = 40<br />
<br />
|SpeedForwardStockRB = 67<br />
|SpeedBackStockRB = 19<br />
|TurnTimeStockRB = 32.40<br />
|TurnSpeedStockRB = 45<br />
<br />
|TurnTimeSpadedRB = 26.30<br />
|TurnSpeedSpadedRB = 43<br />
}}<br />
<br />
MGB-75 has a displacement of 51.5 tons.<br />
<br />
When moving forwards at high speeds, the bow will lift out of the water. This creates a blind spot where the 40 mm 2pdr QF Mk.IIc is unable to depress far enough to hit the waterline. This blindspot extends ~400 m in front of the boat and ~45° to either side.<br />
<br />
=== Modifications and economy ===<br />
{{Specs-Economy}}<br />
<br />
As a premium vehicle, all modifications are unlocked for free. <br />
<br />
== Armament ==<br />
{{Specs-Fleet-Armaments}}<br />
=== Primary armament ===<br />
{{Specs-Fleet-Primary}}<br />
<!-- ''Provide information about the characteristics of the primary armament. Evaluate their efficacy in battle based on their reload speed, ballistics and the capacity of their shells. Add a link to the main article about the weapon: <code><nowiki>{{main|Weapon name (calibre)}}</nowiki></code>. Broadly describe the ammunition available for the primary armament, and provide recommendations on how to use it and which ammunition to choose.'' --><br />
{{main|2pdr QF Mk.IIc (40 mm)}}<br />
<br />
The primary armament consists of a single 40 mm 2pdr QF Mk.IIc cannon mounted forwards in front of the bridge. Stock, the mount can traverse horizontally at a rate of 34°/s and vertically at a rate of 21°/s; with the "Primary Armament Targeting" modification installed, this is increased to 40°/s and 25°/s respectively. With a full ammunition load, there are 2,240 rounds of ammunition, or 40 magazines, available for the mount. The gun has a magazine capacity of 56 rounds and a cycle rate of fire of 200 rounds/min. With a stock crew, it can be reloaded in 7.8 seconds; with an aced crew, this is decreased to 6 seconds.<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="2" | Primary armament guidance<br />
|-<br />
! Horizontal !! Vertical<br />
|-<br />
| ±180° || -5°/+70°<br />
|-<br />
|}<br />
<br />
There are three ammunition types available:<br />
<br />
* Universal: {{Annotation|HEF|High-explosive fragmentation}}/{{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|HEF|High-explosive fragmentation}}/{{Annotation|AP-T|Armour-piercing tracer}}<br />
* 40 mm HE: {{Annotation|HEF|High-explosive fragmentation}}/{{Annotation|HEF|High-explosive fragmentation}}/{{Annotation|HEF|High-explosive fragmentation}}/{{Annotation|AP-T|Armour-piercing tracer}}<br />
* 40 mm AP: {{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|HEF|High-explosive fragmentation}}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="7" | Penetration statistics (belt)<br />
|-<br />
! rowspan="2" data-sort-type="text" | Belt<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| Universal || 60 || 57 || 50 || 43 || 38 || 34<br />
|-<br />
| 40 mm HE || 60 || 57 || 50 || 43 || 38 || 34<br />
|-<br />
| 40 mm AP || 60 || 57 || 50 || 43 || 38 || 34<br />
|-<br />
|}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="8" | Penetration statistics (shell)<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! rowspan="2" | Type of<br>warhead<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| AP-T || {{Annotation|AP-T|Armour-piercing tracer}} || 60 || 57 || 50 || 43 || 38 || 34<br />
|-<br />
| HEF || {{Annotation|HEF|High-explosive fragmentation}} || 3 || 3 || 3 || 3 || 3 || 3<br />
|-<br />
|}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="10" | Shell details<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! rowspan="2" | Type of<br>warhead<br />
! rowspan="2" | Velocity<br>(m/s)<br />
! rowspan="2" | Projectile<br>Mass (kg)<br />
! rowspan="2" | Fuse delay<br>(m)<br />
! rowspan="2" | Fuse sensitivity<br>(mm)<br />
! rowspan="2" | Explosive Mass<br>(TNT equivalent) (g)<br />
! colspan="3" | Ricochet<br />
|-<br />
! 0% !! 50% !! 100%<br />
|-<br />
| AP-T || {{Annotation|AP-T|Armour-piercing tracer}} || 701 || 0.91 || N/A || N/A || N/A || 47° || 60° || 65°<br />
|-<br />
| HEF || {{Annotation|HEF|High-explosive fragmentation}} || 701 || 0.82 || N/A || 0.1 || 71 || 79° || 80° || 81°<br />
|-<br />
|}<br />
<br />
The best ammunition type is 40 mm HE, since it has the highest ratio of HE rounds to AP rounds, making it the most effective against both aircraft and the vast majority of surface targets. Take mostly 40 mm HE along with a several magazines of 40 mm AP for armoured targets.<br />
<br />
=== Secondary armament ===<br />
{{Specs-Fleet-Secondary}}<br />
<!-- ''Some ships are fitted with weapons of various calibres. Secondary armaments are defined as weapons chosen with the control <code>Select secondary weapon</code>. Evaluate the secondary armaments and give advice on how to use them. Describe the ammunition available for the secondary armament. Provide recommendations on how to use them and which ammunition to choose. Remember that any anti-air armament, even heavy calibre weapons, belong in the next section. If there is no secondary armament, remove this section.'' --><br />
{{main|20 mm/70 Oerlikon Mark V (20 mm)}}<br />
<br />
The secondary armament consists of two 20 mm/70 Oerlikon Mark V cannons in a twin mount aft. Stock, the mount can traverse horizontally at a rate of 51°/s and vertically at a rate of 43°/s; with the "Secondary Armament Targeting" modification installed, this is increased to 60°/s and 50°/s respectively. With a full ammunition load, there are 3,600 rounds of ammunition, or 60 magazines, available for the mount. Each gun has a magazine capacity of 60 rounds and a cycle rate of fire of 450 rounds/min, though the gun on the gunner's left side fires at a slightly faster rate, around 485 rounds/min. With a stock crew, the mount can be reloaded in 10.4 seconds; with an aced crew, this is decreased to 8 seconds.<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="2" | Secondary armament guidance<br />
|-<br />
! Horizontal !! Vertical<br />
|-<br />
| ±180° || -10°/+60°<br />
|-<br />
|}<br />
<br />
There are three ammunition types available:<br />
<br />
* Universal: {{Annotation|HEF-T|High-explosive fragmentation tracer}}/{{Annotation|HEF-I|High-explosive fragmentation incendiary}}/{{Annotation|AP-T|Armour-piercing tracer}}<br />
<br />
* 20 mm HE: {{Annotation|HEF-T|High-explosive fragmentation tracer}}/{{Annotation|HEF-I|High-explosive fragmentation incendiary}}/{{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|HEF-I|High-explosive fragmentation incendiary}}<br />
<br />
* 20 mm AP: {{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|HEF-I|High-explosive fragmentation incendiary}}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="7" | Penetration statistics (belt)<br />
|-<br />
! rowspan="2" data-sort-type="text" | Belt<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| Universal || 35 || 33 || 26 || 21 || 18 || 15<br />
|-<br />
| 20 mm HE || 35 || 33 || 26 || 21 || 18 || 15<br />
|-<br />
| 20 mm AP || 35 || 33 || 26 || 21 || 18 || 15<br />
|-<br />
|}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="8" | Penetration statistics (shell)<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! rowspan="2" | Type of<br>warhead<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| HEF-T || {{Annotation|HEF-T|High-explosive fragmentation tracer}} || 2 || 2 || 2 || 2 || 2 || 2<br />
|-<br />
| AP-T || {{Annotation|AP-T|Armour-piercing tracer}} || 35 || 33 || 26 || 21 || 18 || 15<br />
|-<br />
| HEF-I || {{Annotation|HEF-I|High-explosive fragmentation incendiary}} || 2 || 2 || 2 || 2 || 2 || 2<br />
|-<br />
|}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="10" | Shell details<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! rowspan="2" | Type of<br>warhead<br />
! rowspan="2" | Velocity<br>(m/s)<br />
! rowspan="2" | Projectile<br>Mass (kg)<br />
! rowspan="2" | Fuse delay<br>(m)<br />
! rowspan="2" | Fuse sensitivity<br>(mm)<br />
! rowspan="2" | Explosive Mass<br>(TNT equivalent) (g)<br />
! colspan="3" | Ricochet<br />
|-<br />
! 0% !! 50% !! 100%<br />
|-<br />
| HEF-T || {{Annotation|HEF-T|High-explosive fragmentation tracer}} || 844 || 0.12 || N/A || 0.1 || 6.57 || 79° || 80° || 81°<br />
|-<br />
| AP-T || {{Annotation|AP-T|Armour-piercing tracer}} || 844 || 0.12 || N/A || N/A || N/A || 47° || 60° || 65°<br />
|-<br />
| HEF-I || {{Annotation|HEF-I|High-explosive fragmentation incendiary}} || 838 || 0.12 || N/A || 0.1 || 11.17 || 79° || 80° || 81°<br />
|-<br />
|}<br />
<br />
The best ammunition type is the 20 mm HE belt, since it has the highest ratio of HE rounds to AP rounds, making it the most effective against both aircraft and the vast majority of surface targets. The Universal belt is a direct downgrade to the 20 mm HE belt in terms of damage, and the 20 mm AP belt isn't really worth taking due to its relatively low armour penetration. To deal with armoured opponents, use the primary 40 mm 2pdr QF Mk.IIc instead. Take only 20 mm HE.<br />
<br />
=== Anti-aircraft armament ===<br />
{{Specs-Fleet-AA}}<br />
<!-- ''An important part of the ship's armament responsible for air defence. Anti-aircraft armament is defined by the weapon chosen with the control <code>Select anti-aircraft weapons</code>. Talk about the ship's anti-air cannons and machine guns, the number of guns and their positions, their effective range, and about their overall effectiveness – including against surface targets. If there are no anti-aircraft armaments, remove this section.'' --><br />
{{main|Lewis 1916 (7.72 mm)}}<br />
<br />
The anti-aircraft armament consists of four 7.72 mm Lewis 1916 machine guns in two twin mounts, one on either side of the bridge. A total of 7,760 rounds of ammunition, or 80 magazines, are carried for both mounts, 1,940 rounds, or 20 magazines, per gun. Each gun has a magazine capacity of 97 rounds and a cycle rate of fire of 550 rounds/min. With a stock crew, the mount can be reloaded in 18.2 seconds; with an aced crew, this is decreased to 14 seconds. Horizontal and vertical traverse rates are not stated in-game. <br />
<br />
{{Notice|Turrets are named sequentially, clockwise, starting at the bow}}<br />
<br />
{| class="wikitable" style="text-align:center" width="65%"<br />
! colspan="8" | Anti-aircraft armament guidance<br />
|-<br />
! colspan="2" rowspan="1" | No.1 Turret (starboard)<br />
! colspan="2" rowspan="1" | No.2 Turret (port)<br />
|-<br />
! Horizontal !! Vertical !! Horizontal !! Vertical<br />
|-<br />
| -45°/+170° || -5°/+60° || -170°/+45° || -5°/+60°<br />
|-<br />
|}<br />
<br />
Ammunition types cannot be selected for the anti-aircraft armament on MGB-75. Belt composition and penetration statistics are not stated in-game.<br />
<br />
=== Additional armament ===<br />
{{Specs-Fleet-Additional}}<br />
<!-- ''Describe the available additional armaments of the ship: depth charges, mines, torpedoes. Talk about their positions, available ammunition and launch features such as dead zones of torpedoes. If there is no additional armament, remove this section.'' --><br />
{{main|Mk.VII depth charge}}<br />
<br />
MGB-75 has two possible loadouts:<br />
<br />
# Without load<br />
# 2x Mk.VII depth charge<br />
<br />
'''Depth charges'''<br />
<br />
[[File:MGB-75_DCs.png|thumb|Mk.VII depth charges numbered according to their drop order.]]<br />
<br />
The Mk.VII depth charges are carried amidships, one on either side of the bridge next to the twin 7.72 mm Lewis 1916 machine guns. They are dropped one at a time in the following order:<br />
<br />
# Starboard<br />
# Port<br />
<br />
Before spawning, the detonation time delay can be set anywhere between 3 seconds and 10 seconds.<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="7" | Depth charge characteristics<br />
|-<br />
! Mass (kg)<br />
! Explosive type<br />
! Explosive mass (kg)<br />
! TNT equivalent (kg)<br />
! HE armour penetration (mm)<br />
! Armoured vehicle destruction radius (m)<br />
! Fragment dispersion radius (m)<br />
|-<br />
| 196 || TNT || 130 || 130 || 101 || 8 || 122<br />
|-<br />
|}<br />
<br />
There is almost no practical reason to use depth charges on any naval vessel in the game. Although they usually result in a one-hit kill if used properly, they are extremely situational, requiring the player to close to point-blank ranges to even use them. In almost every case, anytime a depth charge could be used, the guns can be used instead to greater effect. In fact, depth charges tend to actually be a liability in battle, since they essentially act as exposed ammo racks before they're dropped. They can be shot at, and if destroyed, they have a chance to detonate, instantly destroying the boat.<br />
<br />
Despite this, some success can be had in dropping them either next to, or in front of a large, slow target. If dropping them next to the target, remember the depth charge drop order, since it's most likely that only the depth charges dropped on the side closest to the enemy will deal any damage. If dropping in front of the target, rush in from the sides as quickly as possible and drop them all at once directly in front of the target. For both cases, set the depth charge time delay to the minimum 3 seconds, since any higher time delay will only allow the depth charge to sink further away from the target, giving them more time to move out of the way. Again, using depth charges is extremely situational, and they will only be a liability the vast majority of the time, so take them at your own discretion.<br />
<br />
== Usage in battles ==<br />
<!-- ''Describe the technique of using this ship, the characteristics of her use in a team and tips on strategy. Abstain from writing an entire guide – don't try to provide a single point of view, but give the reader food for thought. Talk about the most dangerous opponents for this vehicle and provide recommendations on fighting them. If necessary, note the specifics of playing with this vehicle in various modes (AB, RB, SB).'' --><br />
<br />
MGB-75 is plagued by two huge weaknesses that limit her offensive and defensive capabilities. The first of these is that the hull planes when moving at high speeds, lifting the bow out of the water. This normally isn't an issue for most boats, but on MGB-75, it creates a huge blindspot extending ~400 m in front of the boat and ~45° to either side where the primary 40 mm 2pdr QF Mk.IIc is unable to depress far enough to hit the waterline. Because of this, the 40 mm cannon is completely unable to hit opponents within ~250-300 m, depending on the target's height. <br />
<br />
The second weakness is the aft ammunition storage, which is located above deck in the superstructure. Normally, ammunition detonations aren't much of a factor in a coastal vessel's effectiveness. This is because ammunition storages are typically located in the hull and placed a good enough distance away from the outside of the boat. The internal space acts like a buffer, with the hull preventing any HE rounds from reaching the ammunition storage. However, on MGB-75, there is no internal space buffer for the aft ammunition storage, making ammunition detonations very common. Unfortunately, since this ammo rack is tied to both the secondary and anti-aircraft armament, and since the ammunition load for the anti-aircraft armament cannot be selected, there is no easy way to remove this ammunition storage.<br />
<br />
To best make use of MGB-75, both of these weaknesses need to be taken into account. Because of the blindspot, stick to mid-range or long-range engagements. Being at long range also has the added benefit of making it more difficult for enemies to specifically target the aft ammunition storage, but as with most vessels, it's best to not be hit in the first place, so stay on the move and make use of cover wherever possible. If the need to fight at close-range arises, switch to the secondary 20 mm/70 Oerlikon Mark V cannons. These guns are mounted aft, so they cannot target anything in a ~45° arc forwards, ~75° when moving. However, unlike the 40 mm cannon, the 20 mm cannons can at least target close-range opponents at all speeds. MGB-75 is much weaker in close-range engagements, though, since the 20 mm cannons have a much longer reload, and they require turning the hull to aim, so avoid close-range engagements as much as possible.<br />
<br />
Because of the aft ammunition storage, opponents armed with 3 or 4-inch cannons should be the biggest priority, since a single hit with one of these guns anywhere near the ammunition storage is enough to detonate it. Artillery strikes, friendly or not, are also a major hazard for MGB-75. Keep away from capture points and narrow passageways where artillery is common, and the artillery strike warning appears, leave the area as soon as possible. Lastly, the ammunition storage is very susceptible to aircraft attacks due to its location. Keep the AI gunners targeting aircraft, but don't solely rely on them. Instead, use them as a warning for any aircraft in the area, and manually shoot them down if necessary.<br />
<br />
=== Pros and cons ===<br />
<!-- ''Summarise and briefly evaluate the vehicle in terms of its characteristics and combat effectiveness. Mark its pros and cons in the bulleted list. Try not to use more than 6 points for each of the characteristics. Avoid using categorical definitions such as "bad", "good" and the like - use substitutions with softer forms such as "inadequate" and "effective".'' --><br />
<br />
'''Pros:'''<br />
* Powerful primary and secondary armaments<br />
<br />
'''Cons:'''<br />
* Blind spot directly in front when moving at high speeds<br />
* Long reloads for both primary and secondary armaments<br />
* Exposed ammunition storage <br />
<br />
== History ==<br />
<!-- ''Describe the history of the creation and combat usage of the ship in more detail than in the introduction. If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the ship and adding a block "/History" (example: <nowiki>https://wiki.warthunder.com/(Ship-name)/History</nowiki>) and add a link to it here using the <code>main</code> template. Be sure to reference text and sources by using <code><nowiki><ref></ref></nowiki></code>, as well as adding them at the end of the article with <code><nowiki><references /></nowiki></code>. This section may also include the ship's dev blog entry (if applicable) and the in-game encyclopedia description (under <code><nowiki>=== In-game description ===</nowiki></code>, also if applicable).'' --><br />
<br />
By early 1941, many of the British Power Boat Company (BPB) 60-foot, 63-foot, and 70-foot boats had been completed and were in Royal Navy Coastal Forces service, and already, their weaknesses began to show. The boats were small and lightly constructed, and the living conditions for the crew were cramped. Additionally, because of their underpowered engines, these boats were quite slow. While their low top speed was certainly acceptable for anti-submarine work, as they were initially built to perform, it was insufficient by 1941 as most of the boats had been converted into motor gun boats by this point. Thus, in 1941, BPB began plans for a successor to their previous lines of boats.<br />
<br />
The new design had a length of 71 ft 9 in (21.9 m), a beam of 20 ft 7 in (6.3 m), and a draught of about 4 f 3 in (1.3 m). It was powered by three Packard petrol engines driving three shafts, allowing it to achieve a top speed of 42 knots. After their introduction, the BPB 71'9" boats formed the bulk of Coastal Forces' MGB fleet until the introduction of the larger and more heavily-armed Fairmile D boats. Later in the war, many BPB 71'9" boats would receive a pair a 18-inch torpedo tubes and refitted for motor torpedo boat duty. In total, 96 boats were built:<br />
<br />
* MGBs 74-81: Ordered in November 1940 as MA/SBs, all were completed in 1942 as MGBs. Any surviving boats by September 1943 were refitted with a pair of 18-inch torpedo tubes and redesignated as MTBs 412-416. Any of the boats that survived the war were disposed of in October 1945.<br />
* MGBs 107-119: Ordered in November 1940 as MA/SBs, the order was canceled in March 1941. They were subsequently reordered in February 1942, with all completed in 1942 as MGBs. Any surviving boats by September 1943 were refitted with a pair of 18-inch torpedo tubes and redesignated as MTBs 417-418 and 430-438. Any of the boats that survived the war were disposed of either in March 1945 or in October 1945. <br />
* MGBs 120-130: Ordered in May 1942 as MGBs, all were completed in 1943. All boats were refitted in September 1943 with a pair of 18-inch torpedo tubes and redesignated as MTBs 439-449. Most of the boats that survived the war were disposed of in October 1945.<br />
* MTBs 450-489: Ordered as MGBs, all were completed between 1943-1945 as MTBs. Any of the boats that survived the war were disposed of at various dates or used as controlled targets.<br />
* MTBs 490-500: ordered as MTBs, all were completed between 1944-1945. Any of the boats that survived the war were disposed of at various dates or used as controlled targets, with the exception of MTB-496 and MTB-498. These were refurbished in 1949 and renumbered MTB-1596 and MTB-1598 to form the Proud-class along with MTBs 1505-1509, MTB-1519, and MTB-1522. They were given the names "Proud Patriot" and "Proud Patroller", respectively. The Proud-class boats were all sold in June 1958.<br />
* MTBs 501-509: ordered as MTBs, all completed in 1945. All of the boats survived the war. MTBs 501-504 were sold or disposed of at various dates. MTBs 505-509 were refurbished in 1949 and renumbered MTBs 1505-1509 to form the Proud-class along with MTB-1596, MTB-1598, MTB-1519, and MTB-1522. They were given the names "Proud Fusilier", "Proud Grenadier", "Proud Guardsman", "Proud Highlander", and "Proud Knight", respectively. The Proud-class boats were all sold in June 1958.<br />
* MTBs 519-522: ordered as MGBs, all completed in 1946 as MTBs. With the exception of MTB-520, they were refurbished in 1949 and renumbered MTB-1519, MTB-1521, and MTB-1522. MTB-1519 and MTB-1522 formed the Proud-class along with MTBs 1505-1509, MTB-1596, and MTB-1598. They were given the names "Proud Lancer" and "Proud Legionary", respectively. The Proud-class boats were all sold in June 1958.<br />
<br />
MGB-75 was part of the original order placed in November 1940. She was ordered as a motor anti-submarine boat but was completed on 8th May 1942 as a motor gun boat. MGB-75 was commanded by the following:<br />
<br />
* T/Lt. L.G.R. Campbell, RNVR: October 1942 to February 1943<br />
* T/S.Lt. F.J. Head, RNVR: April 1943 to June 1943<br />
* T/S.Lt. W.G.L. Salmon, RNVR: From June 1944 onwards<br />
<br />
MGB-75 served as part of the 6th MGB Flotilla with HMS Beehive at Felixstowe through 1943. In September 1943, MGB-75 received her refit and was redesignated as MTB-413. Through 1944, MTB-413 served as part of the 1st MTB Flotilla at Portsmouth. MTB-413 survived the war and was disposed of in October 1945.<br />
<br />
== Media ==<br />
<!-- ''Excellent additions to the article would be video guides, screenshots from the game, and photos.'' --><br />
<br />
;Skins<br />
* [https://live.warthunder.com/feed/camouflages/?vehicle=uk_71ft_mgb Skins and camouflages for the {{PAGENAME}} from live.warthunder.com.]<br />
<br />
== See also ==<br />
<!-- ''Links to articles on the War Thunder Wiki that you think will be useful for the reader, for example:''<br />
* ''reference to the series of the ship;''<br />
* ''links to approximate analogues of other nations and research trees.'' --><br />
<br />
* {{Specs-Link|uk_70ft_mgb}}<!--[[MGB-61]]--><br />
* {{Specs-Link|uk_fairmile_a_ml100}}<!--[[Fairmile A (ML100)]]--><br />
* {{Specs-Link|uk_fairmile_b_ml345}}<!--[[Fairmile B (ML345)]]--><br />
<br />
== External links ==<br />
<!-- ''Paste links to sources and external resources, such as:''<br />
* ''topic on the official game forum;''<br />
* ''other literature.'' --><br />
<br />
* [http://cfv.org.uk/research/boat/database <nowiki>[Coastal Forces Veterans]</nowiki> Boat Database]<br />
* [https://www.unithistories.com/units_british/RN_CoastalForces.html#MGB%20Boats <nowiki>[unithistories.com]</nowiki> Royal Navy Coastal Forces 1940-1945]<br />
* [http://www.naval-history.net/WW2BritishLosses3Coastal.htm <nowiki>[naval-history.net]</nowiki> British vessels lost at sea in World War 2 - MGB, MTB, SGB, ML, etc] - originally published in ''British Vessels Lost at Sea, 1935-45'', His Majesty's Stationary Office, 1947<br />
* [http://www.navypedia.org/ships/uk/brit_c_f_mtb412.htm <nowiki>[NAVYPEDIA]</nowiki> MTB412 motor torpedo boats (93, 1942 - 1946)]<br />
* [https://uboat.net/allies/warships/class.html?ID=673&navy=HMS <nowiki>[uboat.net]</nowiki> BPB 72 feet-type class]<br />
* [https://www.yalumba.co.uk/Framesets/British%20Power%20Boat%20Co%20-%20Page%204,%20MGBs.html <nowiki>[yalumba.co.uk]</nowiki> British Power Boat Co Page 4]<br />
* [http://www.coastal-forces.org.uk/boats.html <nowiki>[Coastal Forces Heritage Trust]</nowiki> Boats]<br />
<br />
===Bibliography===<br />
<br />
* Konstam, Angus (2010). ''British Motor Gun Boat 1939–45''. Osprey Publishing Ltd. ISBN 978-1-84908-077-4.<br />
<br />
{{Britain boats}}<br />
{{Britain premium ships}}</div>U27474208https://old-wiki.warthunder.com/index.php?title=MGB-61&diff=107847MGB-612021-07-29T02:17:34Z<p>U27474208: Updated to 2.7; added penetration by shell and shell details</p>
<hr />
<div>{{Specs-Card<br />
|code=uk_70ft_mgb<br />
|images={{Specs-Card-Image|GarageImage_{{PAGENAME}}.jpg}}<br />
}}<br />
<br />
== Description ==<br />
<!-- ''In the first part of the description, cover the history of the ship's creation and military application. In the second part, tell the reader about using this ship in the game. Add a screenshot: if a beginner player has a hard time remembering vehicles by name, a picture will help them identify the ship in question.'' --><br />
The '''{{Specs|name}}''' is a rank {{Specs|rank}} British motor gun boat {{Battle-rating}}. It was introduced in [[Update 1.83 "Masters of the Sea"]] as part of the British fleet closed beta test. With the split of the naval tech trees in [[Update "New Power"]], {{PAGENAME}} was moved to the coastal fleet tech tree.<br />
<br />
== General info ==<br />
=== Survivability and armour ===<br />
{{Specs-Fleet-Armour}}<br />
<!-- ''Talk about the vehicle's armour. Note the most well-defended and most vulnerable zones, e.g. the ammo magazine. Evaluate the composition of components and assemblies responsible for movement and manoeuvrability. Evaluate the survivability of the primary and secondary armaments separately. Don't forget to mention the size of the crew, which plays an important role in fleet mechanics. Save tips on preserving survivability for the "Usage in battles" section. If necessary, use a graphical template to show the most well-protected or most vulnerable points in the armour.'' --><br />
<br />
[[File:{{PAGENAME}}_Internals.png|thumb|{{PAGENAME}} internals (starboard). Note the ammo storages below the bridge and in front of the rear gun.]]<br />
<br />
MGB-61 has the following armour layout:<br />
<br />
* [[2pdr Rolls Royce (40 mm)| 40 mm 2pdr Rolls Royce]] gun shield: 12.7 mm hardened armour<br />
* Hull: 40 mm, wood<br />
* Superstructure: 15 mm, wood<br />
<br />
Like most coastal vessels, MGB-61 has no practical armour. The gunshields are largely superficial; while they may stop low-calibre machine guns, heavy machine guns and cannons will easily penetrate them at any range. The hull and superstructure are unarmoured and will not stop any sort of gunfire.<br />
<br />
The hull is split into three compartments. Starting from the bow and working towards the stern, the first compartment starts at the bow and ends in front of the bridge; the second ends between the fuel tanks and the engines; the third ends at the stern. <br />
<br />
MGB-61 can be hull-broken by any round with a large enough diameter and explosive mass. In general, this is limited to HE rounds greater with a diameter greater than or equal to 4 inches (102 mm) with an explosive mass greater than 1.5 kg. At MGB-61's own battle rating, there is only one gun capable of hull-breaking her:<br />
<br />
* the [[8cwt QF Mk I (114 mm)|114 mm 8cwt QF Mk I]], found on {{Specs-Link|uk_dark_class}}.<br />
<br />
There are two ammunition storages: the first, holding the ammunition for the primary armament, is located just above the waterline in front of the aft 40 mm 2pdr Rolls Royce cannon; the other ammunition storage, holding the ammunition for the secondary armament, is located just above the waterline directly underneath each of the two twin 12.7 mm Vickers Mk.V machine gun mounts. Destroying either will instantly destroy MGB-61.<br />
<br />
MGB-61 has a crew complement of 12. With a stock crew, it is knocked out when 7 crew are lost; with an aced crew, this is increased to 8. Overall, the survivability is average.<br />
<br />
=== Mobility ===<br />
{{Specs-Fleet-Mobility}}<br />
<!-- ''Write about the ship's mobility. Evaluate its power and manoeuvrability, rudder rerouting speed, stopping speed at full tilt, with its maximum forward and reverse speed.'' --><br />
<br />
{{NavalMobility<br />
|SpeedForwardStockAB = 73<br />
|SpeedBackStockAB = 20<br />
|TurnTimeStockAB = 23.21<br />
|TurnSpeedStockAB = 41<br />
<br />
|TurnTimeSpadedAB = 15.41<br />
|TurnSpeedSpadedAB = 39<br />
<br />
|SpeedForwardStockRB = 64<br />
|SpeedBackStockRB = 17<br />
|TurnTimeStockRB = 25.64<br />
|TurnSpeedStockRB = 42<br />
<br />
|TurnTimeSpadedRB = 21.18<br />
|TurnSpeedSpadedRB = 41<br />
}}<br />
<br />
MGB-61 has a displacement of 34 tons.<br />
<br />
When moving forwards at high speeds, the bow will lift out of the water. This creates a blind spot at close ranges in front of the boat where, depending on the angle, one or both of the twin 12.7 mm Vickers Mk.V mounts are unable to depress far enough to get the guns on target.<br />
<br />
=== Modifications and economy ===<br />
{{Specs-Economy}}<br />
<br />
The recommended modification research order is:<br />
<br />
# Tool Set<br />
# Fire Protection System<br />
# 12.7 mm I<br />
# Smokescreen<br />
# 40 mm AP<br />
# Rudder Replacement<br />
# Improved Rangefinder<br />
# Artillery<br />
<br />
After that, research the rest of the seakeeping modifications, followed by the rest of the modifications in whatever order you prefer.<br />
<br />
== Armament ==<br />
{{Specs-Fleet-Armaments}}<br />
=== Primary armament ===<br />
{{Specs-Fleet-Primary}}<br />
<!-- ''Provide information about the characteristics of the primary armament. Evaluate their efficacy in battle based on their reload speed, ballistics and the capacity of their shells. Add a link to the main article about the weapon: <code><nowiki>{{main|Weapon name (calibre)}}</nowiki></code>. Broadly describe the ammunition available for the primary armament, and provide recommendations on how to use it and which ammunition to choose.'' --><br />
{{main|Vickers Mk.V (12.7 mm)}}<br />
<br />
The primary armament consists of four 12.7 mm Vickers Mk.V machine guns in two twin mounts, one on either side of the bridge. There are 4,000 rounds of ammunition available for each mount, 2,000 rounds per gun, for a total of 8,000 rounds. Stock, the mounts can traverse horizontally and vertically at a rate of 64°/s; with the "Primary Armament Targeting" modification installed, this is increased to 75°/s. Each gun has a belt capacity of 200 rounds and a cyclic rate of fire of around 600 rounds/min, though the outboard guns on both mounts fire slightly faster, around 685 rounds/min. With a stock crew, the guns can be reloaded in 13 seconds; with an aced crew, they can be reloaded in 10 seconds.<br />
<br />
{{Notice|Turrets are named sequentially, clockwise, starting at the bow}}<br />
<br />
{| class="wikitable" style="text-align:center" width="50%"<br />
! colspan="8" | Primary armament guidance<br />
|-<br />
! colspan="2" rowspan="1" | No.1 Turret (starboard)<br />
! colspan="2" rowspan="1" | No.2 Turret (port)<br />
|-<br />
! Horizontal !! Vertical !! Horizontal !! Vertical<br />
|-<br />
| ±180° || -10°/+70° || ±180° || -10°/+70°<br />
|-<br />
|}<br />
<br />
There are three ammunition choices available:<br />
<br />
* Universal: {{Annotation|T|Tracer}}{{-}}{{Annotation|AP|Armour-piercing}}{{-}}{{Annotation|I|Incendiary}}<br />
<br />
* 12.7 mm I: {{Annotation|T|Tracer}}{{-}}{{Annotation|I|Incendiary}}{{-}}{{Annotation|I|Incendiary}}{{-}}{{Annotation|I|Incendiary}}{{-}}{{Annotation|I|Incendiary}}<br />
<br />
* 12.7 mm API: {{Annotation|T|Tracer}}{{-}}{{Annotation|AP|Armour-piercing}}{{-}}{{Annotation|I|Incendiary}}{{-}}{{Annotation|AP|Armour-piercing}}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="7" | Penetration statistics (belt)<br />
|-<br />
! rowspan="2" data-sort-type="text" | Belt<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| Universal || 24 || 24 || 21 || 18 || 16 || 15<br />
|-<br />
| 12.7 mm I || 20 || 19 || 16 || 14 || 12 || 11<br />
|-<br />
| 12.7 mm API || 24 || 24 || 21 || 18 || 16 || 15<br />
|-<br />
|}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="8" | Penetration statistics (shell)<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! rowspan="2" | Type of<br>warhead<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| T || {{Annotation|T|Tracer}} || 20 || 19 || 16 || 14 || 12 || 11<br />
|-<br />
| AP || {{Annotation|AP|Armour-piercing}} || 24 || 24 || 21 || 18 || 16 || 15<br />
|-<br />
| I || {{Annotation|I|Incendiary}} || 3 || 2 || 2 || 2 || 2 || 2<br />
|-<br />
|}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="10" | Shell details<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! rowspan="2" | Type of<br>warhead<br />
! rowspan="2" | Velocity<br>(m/s)<br />
! rowspan="2" | Projectile<br>Mass (kg)<br />
! rowspan="2" | Fuse delay<br>(m)<br />
! rowspan="2" | Fuse sensitivity<br>(mm)<br />
! rowspan="2" | Explosive Mass<br>(TNT equivalent) (g)<br />
! colspan="3" | Ricochet<br />
|-<br />
! 0% !! 50% !! 100%<br />
|-<br />
| T || {{Annotation|T|Tracer}} || 753 || 0.04 || N/A || N/A || N/A || 47° || 56° || 65°<br />
|-<br />
| AP || {{Annotation|AP|Armour-piercing}} || 753 || 0.05 || N/A || N/A || N/A || 47° || 56° || 65°<br />
|-<br />
| I || {{Annotation|I|Incendiary}} || 753 || 0.04 || N/A || 0.1 || 1.8 || 47° || 56° || 65°<br />
|-<br />
|}<br />
<br />
Of the belts, the I belt has a noticeably higher damage output than both the Universal and API belts, both of which are about the same in terms of damage. This is because it has the highest concentration of incendiary rounds, which are the only ones with any high-explosive filler. However, because it lacks any armour-piercing rounds, the I belt has slightly less armour penetration than the other two belts. In general, though, any armour that can stop the incendiary round will also be able to stop the armour-piercing round. For the most effectiveness, take only the I belt once unlocked, and switch the primary 20 mm/70 Oerlikon Mk.II cannon to deal with armoured targets.<br />
<br />
=== Secondary armament ===<br />
{{Specs-Fleet-Secondary}}<br />
<!-- ''Some ships are fitted with weapons of various calibres. Secondary armaments are defined as weapons chosen with the control <code>Select secondary weapon</code>. Evaluate the secondary armaments and give advice on how to use them. Describe the ammunition available for the secondary armament. Provide recommendations on how to use them and which ammunition to choose. Remember that any anti-air armament, even heavy calibre weapons, belong in the next section. If there is no secondary armament, remove this section.'' --><br />
{{main|2pdr Rolls Royce (40 mm)}}<br />
<br />
The secondary armament consists of a single 40 mm 2pdr Rolls Royce cannon mounted aft, with a maximum of 1,200 rounds of ammunition. Stock, the mount can traverse horizontally at a rate of 38°/s and vertically at a rate of 47°/s; with the "Auxiliary Armament Targeting" modification installed, this is increased to 45°/s and 55°/s respectively. The gun has a magazine capacity of 4 rounds and a cyclic rate of fire of 231 rounds/min. With a stock crew, the gun can be reloaded in 2.21 seconds; with an aced crew, it can be reloaded in 1.7 seconds.<br />
<br />
{| class="wikitable" style="text-align:center" width="25%"<br />
! colspan="2" | Secondary armament guidance<br />
|-<br />
! Horizontal !! Vertical<br />
|-<br />
| ±151° || -12°/+60°<br />
|-<br />
|}<br />
<br />
There are three ammunition choices available:<br />
<br />
* Universal: {{Annotation|HEF|High-explosive fragmentation}}{{-}}{{Annotation|AP-T|Armour-piercing tracer}}{{-}}{{Annotation|HEF|High-explosive fragmentation}}{{-}}{{Annotation|AP-T|Armour-piercing tracer}}<br />
<br />
* 40 mm HE: {{Annotation|HEF|High-explosive fragmentation}}{{-}}{{Annotation|HEF|High-explosive fragmentation}}{{-}}{{Annotation|HEF|High-explosive fragmentation}}{{-}}{{Annotation|AP-T|Armour-piercing tracer}}<br />
<br />
* 40 mm AP: {{Annotation|AP-T|Armour-piercing tracer}}{{-}}{{Annotation|AP-T|Armour-piercing tracer}}{{-}}{{Annotation|AP-T|Armour-piercing tracer}}{{-}}{{Annotation|HEF|High-explosive fragmentation}}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="7" | Penetration statistics (belt)<br />
|-<br />
! rowspan="2" data-sort-type="text" | Belt<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| Universal || 60 || 57 || 50 || 43 || 38 || 34<br />
|-<br />
| 40 mm HE || 60 || 57 || 50 || 43 || 38 || 34<br />
|-<br />
| 40 mm AP || 60 || 57 || 50 || 43 || 38 || 34<br />
|-<br />
|}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="8" | Penetration statistics (shell)<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! rowspan="2" | Type of<br>warhead<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| AP-T || {{Annotation|AP-T|Armour-piercing tracer}} || 60 || 57 || 50 || 43 || 38 || 34<br />
|-<br />
| HEF || {{Annotation|HEF|High-explosive fragmentation}} || 3 || 3 || 3 || 3 || 3 || 3<br />
|-<br />
|}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="10" | Shell details<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! rowspan="2" | Type of<br>warhead<br />
! rowspan="2" | Velocity<br>(m/s)<br />
! rowspan="2" | Projectile<br>Mass (kg)<br />
! rowspan="2" | Fuse delay<br>(m)<br />
! rowspan="2" | Fuse sensitivity<br>(mm)<br />
! rowspan="2" | Explosive Mass<br>(TNT equivalent) (g)<br />
! colspan="3" | Ricochet<br />
|-<br />
! 0% !! 50% !! 100%<br />
|-<br />
| AP-T || {{Annotation|AP-T|Armour-piercing tracer}} || 701 || 0.91 || N/A || N/A || N/A || 47° || 60° || 65°<br />
|-<br />
| HEF || {{Annotation|HEF|High-explosive fragmentation}} || 701 || 0.82 || N/A || 0.1 || 71 || 79° || 80° || 81°<br />
|-<br />
|}<br />
<br />
The best ammunition for general use is the HE belt, due to it having the highest ratio of HE rounds to AP rounds, making it the most effective against both aircraft and the vast majority of surface targets. Because of this, the HE belt should be the main ammunition once it is unlocked. Additionally, take a substantial amount of the belt as well for use against armoured targets. Alternatively, take only Universal if you want to avoid the reload delay between switching ammunition types, though this comes at the cost of lesser damage efficiency.<br />
<br />
=== Additional armament ===<br />
{{Specs-Fleet-Additional}}<br />
<!-- ''Describe the available additional armaments of the ship: depth charges, mines, torpedoes. Talk about their positions, available ammunition and launch features such as dead zones of torpedoes. If there is no additional armament, remove this section.'' --><br />
{{main|Mk.VII depth charge}}<br />
<br />
{{PAGENAME}} has two possible loadouts:<br />
<br />
# 2x Mk.VII depth charge<br />
# Without load<br />
<br />
'''Depth Charges'''<br />
<br />
[[File:{{PAGENAME}}_DC_Order.png|thumb|Mk.VII depth charges numbered according to their drop order.]]<br />
<br />
The Mk.VII depth charges are carried amidships in front of the aft gun, one on each side. They are dropped one at a time in the following order:<br />
<br />
# Starboard<br />
# Port<br />
<br />
Before spawning, the detonation time delay can be set anywhere between 3 seconds and 10 seconds.<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="7" | Depth charge characteristics<br />
|-<br />
! Mass (kg)<br />
! Explosive type<br />
! Explosive mass (kg)<br />
! TNT equivalent (kg)<br />
! HE armour penetration (mm)<br />
! Armoured vehicle destruction radius (m)<br />
! Fragment dispersion radius (m)<br />
|-<br />
| 196 || TNT || 130 || 130 || 101 || 8 || 122 <br />
|}<br />
<br />
There is almost no practical reason to use depth charges on any naval vessel in the game. Although they usually result in a one-hit kill if used properly, they are extremely situational, requiring the player to close to point-blank ranges to even use them. In almost every case, anytime a depth charge could be used, the guns or torpedoes can be used instead to greater effect. In fact, depth charges tend to actually be a liability in battle, since they essentially act as exposed ammo racks before they're dropped. They can be shot at, and if destroyed, they have a chance to detonate, instantly destroying the boat.<br />
<br />
Despite this, some success can be had in dropping them either next to, or in front of a large, slow target. If dropping them next to the target, remember the depth charge drop order, since it's most likely that only the depth charges dropped on the side closest to the enemy will deal any damage. If dropping in front of the target, rush in from the sides as quickly as possible and drop them all at once directly in front of the target. For both cases, set the depth charge time delay to the minimum 3 seconds, since any higher time delay will only allow the depth charge to sink further away from the target, giving them more time to move out of the way. Again, using depth charges is extremely situational, and they will only be a liability the vast majority of the time, so take them at your own discretion.<br />
<br />
== Usage in battles ==<br />
<!-- ''Describe the technique of using this ship, the characteristics of her use in a team and tips on strategy. Abstain from writing an entire guide – don't try to provide a single point of view, but give the reader food for thought. Talk about the most dangerous opponents for this vehicle and provide recommendations on fighting them. If necessary, note the specifics of playing with this vehicle in various modes (AB, RB, SB).'' --><br />
<br />
As a motor gun boat, MGB-61's primary armament is actually quite good, unlike the previous vessels in its tech tree line. With four 12.7 mm Vickers Mk.V machine guns, the damage output is roughly comparable to two or three 20 mm cannons, and with a belt capacity of 200 rounds each, they can sustain fire for much longer than most contemporary autocannons. While most of her cannon-armed counterparts must reload after one or two kills, MGB-61 can easily take out multiple enemies in quick succession, making her well suited for aggressive playstyles. However, this firepower comes at the cost of a long reload, anywhere between 13 and 10 seconds depending on the level of the crew.<br />
<br />
In addition to a long reload, the primary armament's firing arcs are also somewhat restrictive. Both gun mounts are unable to fire in a ~117° arc in the direction of the other mount, and at rest, both are unable to fire at anything within ~275 m directly behind the boat. When on the move, the bow will lift out the water, eliminating the rear blind spot, but also creating a new one in front of the boat that extends for several hundred meters where one or both of the mounts are unable to depress far enough to get guns on target.<br />
<br />
With all of this in mind, play MGB-61 aggressively, but always be aware of the limits of the guns. Because of the long reload, be proactive with the reloads. Keep an eye on the ammunition counter and be sure to fire off any remaining ammo after engagements if there isn't much left in the belts, retreating to do so if necessary. A good time to start doing so is when there are around 250 rounds or less between all four guns. Additionally, because of the poor firing arcs, keep enemies either directly in front or directly behind you at all times so that all of the guns are able to fire, and be ready to speed up or slow down to eliminate the fore or aft blindspots as needed. MGB-61's survivability is rather average and is largely reliant on being able to destroy opponents before they can deal much damage in return, so not being able to fire for even just for a few seconds due to any reason will often result in your own destruction, especially while playing aggressively.<br />
<br />
Lastly, if you come across any armoured targets that the 12.7 mm machine guns fail to penetrate — in particular, the {{Specs-Link|ussr_1124_art}}, {{Specs-Link|ussr_1124_ack}}, and {{Specs-Link|ussr_pr_191}} — switch to the secondary 40 mm 2pdr Rolls Royce cannon. This gun is more than capable of punching through any armour MGB-61 might come across, and it also has a higher effective range, making it useful for long-range engagements. However, its damage output is noticeably lower than the four machine guns, so only switch to it when required, but always be ready to do so on a moment's notice.<br />
<br />
=== Pros and cons ===<br />
<!-- ''Summarise and briefly evaluate the vehicle in terms of its characteristics and combat effectiveness. Mark its pros and cons in the bulleted list. Try not to use more than 6 points for each of the characteristics. Avoid using categorical definitions such as "bad", "good" and the like - use substitutions with softer forms such as "inadequate" and "effective".'' --><br />
<br />
'''Pros:'''<br />
<br />
* Primary armament: high rate of fire, large belt capacity, and good damage output<br />
* Secondary armament: very quick reload, high penetration with AP rounds, and good firing arcs<br />
* Good mobility<br />
<br />
'''Cons:'''<br />
<br />
* Blind spot directly in front while moving at high speeds<br />
* Primary armament: long reload and poor firing arcs<br />
* Secondary armament: cannot fire directly forwards, small magazine capacity, and cannot rotate 360°<br />
<br />
== History ==<br />
<!-- ''Describe the history of the creation and combat usage of the ship in more detail than in the introduction. If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the ship and adding a block "/History" (example: <nowiki>https://wiki.warthunder.com/(Ship-name)/History</nowiki>) and add a link to it here using the <code>main</code> template. Be sure to reference text and sources by using <code><nowiki><ref></ref></nowiki></code>, as well as adding them at the end of the article with <code><nowiki><references /></nowiki></code>. This section may also include the ship's dev blog entry (if applicable) and the in-game encyclopedia description (under <code><nowiki>=== In-game description ===</nowiki></code>, also if applicable).'' --><br />
<br />
Over the course of the Second World War, British Power Boat Company (BPB), based at Hythe, manufactured three motor anti-submarine boat (MASB) designs — all three essentially being scaled-up versions of the same overall design — as follows: a 60-foot version, consisting of MASBs 1-5; a 63-foot version, consisting of MASBs 22-45; and a 70-foot version, consisting of MASBs 6-21, 46, and 50-67. These boats were originally designed as motor torpedo boats (MTBs), but with the increasing threat of German U-Boats, those ordered by the Royal Navy were ordered instead as MASBs, their torpedo tubes replaced with depth charge racks and ASDIC equipment.<br />
<br />
The 70-foot boats, in particular, had a standard displacement of around 30 tons, with a full displacement of up to 38 tons, depending on the boat. They had a length of 70 ft (21.3 m), a beam of 16 ft 7 in (5.05 m), and a draught of around 3 ft (~1 m) depending on the boat. They were powered as follows:<br />
<br />
* MASBs 6-21: Ordered by the Royal Navy as MASBs, all were completed throughout 1940 and 1941. These were originally planned to be powered by Rolls Royce engines. However, these engines eventually became reserved only for Hurricane and Spitfire fighter aircraft by the time the boats were built. Instead, they were powered by two weaker Napier Sea Lion engines and could only achieve 23 knots. In 1942, they received stronger Packard engines, increasing their top speed to 38 knots.<br />
* MASB 46: Originally ordered by the Royal Netherlands Navy as an MTB, with the capitulation of the Netherlands before her completion in May 1940, she was requisitioned by the Royal Navy in July 1940 and completed as a MASB on 13th July 1941. MASB 46 was powered by three Rolls Royce petrol engines and could achieve a top speed of 42.5 knots.<br />
* MASBs 50-67: Originally ordered by the French Navy as MTBs, with the capitulation of France before the completion of most of the order in June 1940, they were requisitioned by the Royal Navy in July 1940 and completed as a MASB throughout 1940 and 1941. MASBs 50-67 were powered by three Isotta-Fraschini engines and could achieve a top speed of 40 knots.<br />
<br />
Around 1941, to counter the more heavily armed German E-Boats, the Royal Navy converted most of their MASBs, including all of the BPB 70-foot MASBs, into motor gun boats (MGBs). During this time, the BPB 70-foot boats were redesignated MGBs 6-21, 46, and 50-67 and were all refitted with a standardized armament consisting of 2-pdr aft gun and a twin .50 calibre machine gun mount on either side of the bridge.<br />
<br />
MASB-61 was one of the ex-French BPB 70-foot boats. She was completed on 12th April 1941, but with the capitulation of France, she was requisitioned by the Royal Navy in July 1940 and converted into a MASB. In January 1941, she was refitted as a motor gun boat and redesignated as MGB-61. MGB-61 was commanded by the following:<br />
<br />
* Lt. P.N. Howes, RN: December 1940 to August 1941<br />
* Lt. I.R. Griffiths, RN: August 1941 to December 1941<br />
* T/Lt. D.P. James, RNVR: December 1941 to July 1942<br />
* T/Lt. J. Collins, RNVR: July 1942 to August 1943<br />
<br />
MGB-61 served as part of the 6th MGB Flotilla with HMS Beehive at Felixstowe from 1941 to 1943. She was disposed of in February 1945.<br />
<br />
== Media ==<br />
<!-- ''Excellent additions to the article would be video guides, screenshots from the game, and photos.'' --><br />
<br />
;'''Skins'''<br />
<br />
* [https://live.warthunder.com/feed/camouflages/?vehicleCountry=britain&vehicleType=ship&vehicleClass=gun_boat&vehicle=uk_70ft_mgb Skins and camouflages for the {{PAGENAME}} from live.warthunder.com.]<br />
<br />
== See also ==<br />
<!-- ''Links to articles on the War Thunder Wiki that you think will be useful for the reader, for example:''<br />
* ''reference to the series of the ship;''<br />
* ''links to approximate analogues of other nations and research trees.'' --><br />
<br />
* {{Specs-Link|uk_fairmile_a_ml100}}<br />
* {{Specs-Link|uk_71ft_mgb}}<br />
* {{Specs-Link|uk_fairmile_b_ml345}}<br />
<br />
== External links ==<br />
<!-- ''Paste links to sources and external resources, such as:''<br />
* ''topic on the official game forum;''<br />
* ''encyclopedia page on ship;''<br />
* ''other literature.'' --><br />
<br />
* [http://cfv.org.uk/research/boat/database <nowiki>[Coastal Forces Veterans]</nowiki> Boat Database]<br />
* [https://www.unithistories.com/units_british/RN_CoastalForces.html#MGB%20Boats <nowiki>[Unit Histories]</nowiki> Royal Navy Coastal Forces 1940-1945]<br />
* [http://www.naval-history.net/WW2BritishLosses3Coastal.htm <nowiki>[naval-history.net]</nowiki> British vessels lost at sea in World War 2 - MGB, MTB, SGB, ML, etc] - originally published in ''British Vessels Lost at Sea, 1935-45'', His Majesty's Stationary Office, 1947<br />
* [http://www.navypedia.org/ships/uk/brit_c_f_mgb6.htm <nowiki>[NAVYPEDIA]</nowiki> MGB6 motor gun boats (35, 1939 - 1941)]<br />
* [https://uboat.net/allies/warships/class.html?ID=671&navy=HMS <nowiki>[uboat.net]</nowiki> BPB 70 feet-type (ex: French) class]<br />
* [https://d-dayrevisited.co.uk/projects/masb-27-restoration/ <nowiki>[D-Day Revisited]</nowiki> MASB 27 Restoration]<br />
* [https://www.yalumba.co.uk/Framesets/British%20Power%20Boat%20Co%20-%20Page%204,%20MGBs.html <nowiki>[yalumba.co.uk]</nowiki> British Power Boat Co Page 4]<br />
* [http://www.coastal-forces.org.uk/boats.html <nowiki>[Coastal Forces Heritage Trust]</nowiki> Boats]<br />
<br />
===Bibliography===<br />
<br />
* Konstam, Angus (2010). ''British Motor Gun Boat 1939–45''. Osprey Publishing Ltd. ISBN 978-1-84908-077-4.<br />
<br />
{{Britain boats}}</div>U27474208https://old-wiki.warthunder.com/index.php?title=Fairmile_B_(ML345)&diff=107845Fairmile B (ML345)2021-07-29T01:56:45Z<p>U27474208: Wording</p>
<hr />
<div>{{Specs-Card<br />
|code=uk_fairmile_b_ml345<br />
|images={{Specs-Card-Image|GarageImage_{{PAGENAME}}.jpg}}<br />
}}<br />
<br />
== Description ==<br />
<!-- ''In the first part of the description, cover the history of the ship's creation and military application. In the second part, tell the reader about using this ship in the game. Add a screenshot: if a beginner player has a hard time remembering vehicles by name, a picture will help them identify the ship in question.'' --><br />
The '''{{Specs|name}}''' is a rank {{Specs|rank}} British motor gun boat {{Battle-rating}}. It was introduced in [[Update 1.83 "Masters of the Sea"]] as part of the British fleet closed beta test. With the split of the naval tech trees in [[Update "New Power"]], {{PAGENAME}} was moved to the coastal fleet tech tree.<br />
<br />
== General info ==<br />
=== Survivability and armour ===<br />
{{Specs-Fleet-Armour}}<br />
<!-- ''Talk about the vehicle's armour. Note the most well-defended and most vulnerable zones, e.g. the ammo magazine. Evaluate the composition of components and assemblies responsible for movement and manoeuvrability. Evaluate the survivability of the primary and secondary armaments separately. Don't forget to mention the size of the crew, which plays an important role in fleet mechanics. Save tips on preserving survivability for the "Usage in battles" section. If necessary, use a graphical template to show the most well-protected or most vulnerable points in the armour.'' --><br />
<br />
[[File:{{PAGENAME}}_Internals.png|thumb|{{PAGENAME}} internals (starboard). Note the ammunition storage in the bow.]]<br />
<br />
Fairmile B (ML345) has the following armour layout:<br />
<br />
* [[3 pdr QF Hotchkiss (47 mm)|47 mm 3 pdr QF Hotchkiss]] gun shield: 8 mm, anti-fragmentation armour<br />
* [[20 mm/70 Oerlikon Mk.II (20 mm)|20 mm/70 Oerlikon Mk.II (single)]] gun shield: 12.7 mm, hardened armour<br />
* [[20 mm/70 Oerlikon Mark V (20 mm)|20 mm/70 Oerlikon Mark V (twin)]] gun shield: 12.7 mm, hardened armour<br />
* Hull: 28 mm, wood<br />
* Superstructure: 15 mm, wood<br />
<br />
Like most coastal vessels, Fairmile B (ML345) has no practical armour. The gunshields are largely superficial; while they may stop low-calibre machine guns, heavy machine guns and cannons will easily penetrate them at any range. The hull and superstructure are unarmoured and will not stop any sort of gunfire. <br />
<br />
The hull is split into four compartments. Starting from the bow and working towards the stern, the first compartment starts at the bow and ends in front of the bridge, just in behind the pumps; the second ends at the funnel, between the radio station and the engines; the third ends in front of the aft 20 mm/70 Oerlikon Mark V twin mount; and the fourth ends at the stern. <br />
<br />
Fairmile B (ML345) can be hull-broken by any round with a large enough diameter and explosive mass. In general, this is limited to HE rounds greater with a diameter greater than or equal to 4 inches (102 mm) with an explosive mass greater than 1.5 kg. At Fairmile B (ML345)'s own battle rating, there is only one gun capable of hull-breaking her:<br />
<br />
* the [[8cwt QF Mk I (114 mm)|114 mm 8cwt QF Mk I]], found on {{Specs-Link|uk_dark_class}}.<br />
<br />
There are two ammunition storages: the first, holding the ammunition for the primary armament, is located well above the waterline in the bow, below and in front of the fore 47 mm 3 pdr QF Hotchkiss cannon; the other ammunition storage, holding the ammunition for both the secondary and the anti-aircraft armament, is located in the stern, just above the waterline in front of the steering gear. Destroying either will instantly destroy Fairmile B (ML345).<br />
<br />
Fairmile B (ML345) has a crew complement of 18. With a stock crew, it is knocked out when 11 crew are lost; with an aced crew, this is increased to 13. Overall, the survivability is average. <br />
<br />
=== Mobility ===<br />
{{Specs-Fleet-Mobility}}<br />
<!-- ''Write about the ship's mobility. Evaluate its power and manoeuvrability, rudder rerouting speed, stopping speed at full tilt, with its maximum forward and reverse speed.'' --><br />
<br />
{{NavalMobility<br />
|SpeedForwardStockAB = 37<br />
|SpeedBackStockAB = 14<br />
|TurnTimeStockAB = 55.47<br />
|TurnSpeedStockAB = 28<br />
<br />
|TurnTimeSpadedAB = 33.67<br />
|TurnSpeedSpadedAB = 25<br />
<br />
|SpeedForwardStockRB = 32<br />
|SpeedBackStockRB = 12<br />
|TurnTimeStockRB = 65.31<br />
|TurnSpeedStockRB = 27<br />
<br />
|TurnTimeSpadedRB = 48.14<br />
|TurnSpeedSpadedRB = 27<br />
}}<br />
<br />
Fairmile B (ML345) has a displacement of 65 tons.<br />
<br />
=== Modifications and economy ===<br />
{{Specs-Economy}}<br />
<br />
The recommended modification research order is:<br />
<br />
# Tool Set<br />
# Fire Protection System<br />
# 20 mm HE<br />
# 20 mm AP<br />
# Propeller Replacement<br />
# Improved Rangefinder<br />
# Artillery Support<br />
<br />
After that, research the rest of the seakeeping modifications, followed by the rest of the modifications in whatever order you prefer.<br />
<br />
== Armament ==<br />
{{Specs-Fleet-Armaments}}<br />
=== Primary armament ===<br />
{{Specs-Fleet-Primary}}<br />
<!-- ''Provide information about the characteristics of the primary armament. Evaluate their efficacy in battle based on their reload speed, ballistics and the capacity of their shells. Add a link to the main article about the weapon: <code><nowiki>{{main|Weapon name (calibre)}}</nowiki></code>. Broadly describe the ammunition available for the primary armament, and provide recommendations on how to use it and which ammunition to choose.'' --><br />
{{main|3 pdr QF Hotchkiss (47 mm)}}<br />
<br />
The primary armament consists of a single 47 mm 3 pdr QF Hotchkiss cannon mounted on the bow, with a maximum of 300 rounds of ammunition. Stock, the mount can traverse horizontally at a rate of 34°/s and vertically at a rate of 21°/s; with the "Primary Armament Targeting" modification installed, this is increased to 40°/s and 25°/s respectively. The gun is single-shot with a nominal rate of fire of 30 rounds/min. With a stock crew, it can be reloaded in 2.6 seconds; with an aced crew, it can be reloaded in 2 seconds.<br />
<br />
{| class="wikitable" style="text-align:center" width="25%"<br />
! colspan="2" | Primary armament guidance<br />
|-<br />
! Horizontal !! Vertical<br />
|-<br />
| ±180° || -10°/+70°<br />
|-<br />
|}<br />
<br />
There is only one ammunition type available:<br />
<br />
* 3 pdr Mk.2 HE<br />
<br />
{| class="wikitable" style="text-align:center" width="100%"<br />
! colspan="8" | Penetration statistics<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! rowspan="2" | Type of<br>warhead<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 100 m !! 1,000 m !! 2,000 m !! 3,000 m !! 4,000 m !! 5,000 m<br />
|-<br />
| 3 pdr Mk.2 HE || HE || 4 || 4 || 4 || 4 || 4 || 4<br />
|-<br />
|}<br />
{| class="wikitable" style="text-align:center" width="100%"<br />
! colspan="10" | Shell details<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! rowspan="2" | Type of<br>warhead<br />
! rowspan="2" | Velocity<br>(m/s)<br />
! rowspan="2" | Projectile<br>Mass (kg)<br />
! rowspan="2" | Fuse delay<br>(m)<br />
! rowspan="2" | Fuse sensitivity<br>(mm)<br />
! rowspan="2" | Explosive Mass<br>(TNT equivalent) (g)<br />
! colspan="3" | Ricochet<br />
|-<br />
! 0% !! 50% !! 100%<br />
|-<br />
| 3 pdr Mk.2 HE || {{Annotation|HE|High-explosive}} || 571 || 1.5 || 0 || 0.1 || 132 || 79° || 80° || 81°<br />
|-<br />
|}<br />
<br />
=== Secondary armament ===<br />
{{Specs-Fleet-Secondary}}<br />
<!-- ''Some ships are fitted with weapons of various calibres. Secondary armaments are defined as weapons chosen with the control <code>Select secondary weapon</code>. Evaluate the secondary armaments and give advice on how to use them. Describe the ammunition available for the secondary armament. Provide recommendations on how to use them and which ammunition to choose. Remember that any anti-air armament, even heavy calibre weapons, belong in the next section. If there is no secondary armament, remove this section.'' --><br />
{{main|20 mm/70 Oerlikon Mk.II (20 mm)|20 mm/70 Oerlikon Mark V (20 mm)}}<br />
<br />
The secondary armament consists of one 20 mm/70 Oerlikon Mk.II cannon and two 20 mm/70 Oerlikon Mk.V cannons.<br />
<br />
The 20 mm/70 Oerlikon Mk.II cannon is fitted in a single mount amidships aft of the funnel, with a maximum of 1,800 rounds of ammunition. Stock, the mount can traverse horizontally at a rate of 64°/s and vertically at a rate of 55°/s; with the "Auxiliary Armament Targeting" modification installed, this is increased to 75°/s and 65°/s respectively. The gun has a magazine capacity of 60 rounds and a cyclic rate of fire of around 450 rounds/min. With a stock crew, the gun can be reloaded in 5.2 seconds; with an aced crew, it can be reloaded in 4 seconds.<br />
<br />
The 20 mm/70 Oerlikon Mk.V cannons are fitted in a twin mount aft. There are 3,600 rounds of ammunition available for it, 1,800 rounds per gun. Stock, the mount can traverse horizontally at a rate of 51°/s and vertically at a rate of 43°/s; with the "Auxiliary Armament Targeting" modification installed, this is increased to 60°/s and 50°/s respectively. Each gun has a magazine capacity of 60 rounds and a stated cyclic rate of fire of around 450 rounds/min, though the gun on the gunner's right side fires slightly faster, around 485 rounds/min. With a stock crew, the guns can be reloaded in 10.4 seconds; with an aced crew, they can be reloaded in 8 seconds.<br />
<br />
{{Notice|Turrets are named sequentially, clockwise, starting at the bow}}<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="8" | Secondary armament guidance<br />
|-<br />
! colspan="2" rowspan="1" | No.1 Turret (1x [[20 mm/70 Oerlikon Mk.II (20 mm)|20 mm/70 Oerlikon Mk.II]])<br />
! colspan="2" rowspan="1" | No.2 Turret (2x [[20 mm/70 Oerlikon Mark V (20 mm)|20 mm/70 Oerlikon Mk.V]])<br />
|-<br />
! Horizontal !! Vertical !! Horizontal !! Vertical<br />
|-<br />
| ±147° || -5°/+60° || ±140° || -4°/+62°<br />
|-<br />
|}<br />
<br />
All of the secondary armament guns share the same ammunition, of which there are three types available:<br />
<br />
* Universal: {{Annotation|HEF-T|High-explosive fragmentation tracer}}{{-}}{{Annotation|HEF-I|High-explosive fragmentation incendiary}}{{-}}{{Annotation|AP-T|Armour-piercing tracer}}<br />
<br />
* 20 mm HE: {{Annotation|HEF-T|High-explosive fragmentation tracer}}{{-}}{{Annotation|HEF-I|High-explosive fragmentation incendiary}}{{-}}{{Annotation|AP-T|Armour-piercing tracer}}{{-}}{{Annotation|HEF-I|High-explosive fragmentation incendiary}}<br />
<br />
* 20 mm AP: {{Annotation|AP-T|Armour-piercing tracer}}{{-}}{{Annotation|AP-T|Armour-piercing tracer}}{{-}}{{Annotation|AP-T|Armour-piercing tracer}}{{-}}{{Annotation|HEF-I|High-explosive fragmentation incendiary}}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="7" | Penetration statistics<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| Universal || 35 || 33 || 26 || 21 || 18 || 15<br />
|-<br />
| 20 mm HE || 35 || 33 || 26 || 21 || 18 || 15<br />
|-<br />
| 20 mm AP || 35 || 33 || 26 || 21 || 18 || 15<br />
|-<br />
|}<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="8" | Penetration statistics (shell)<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! rowspan="2" | Type of<br>warhead<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| HEF-T || {{Annotation|HEF-T|High-explosive fragmentation tracer}} || 2 || 2 || 2 || 2 || 2 || 2<br />
|-<br />
| AP-T || {{Annotation|AP-T|Armour-piercing tracer}} || 35 || 33 || 26 || 21 || 18 || 15<br />
|-<br />
| HEF-I || {{Annotation|HEF-I|High-explosive fragmentation incendiary}} || 2 || 2 || 2 || 2 || 2 || 2<br />
|-<br />
|}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="10" | Shell details<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! rowspan="2" | Type of<br>warhead<br />
! rowspan="2" | Velocity<br>(m/s)<br />
! rowspan="2" | Projectile<br>Mass (kg)<br />
! rowspan="2" | Fuse delay<br>(m)<br />
! rowspan="2" | Fuse sensitivity<br>(mm)<br />
! rowspan="2" | Explosive Mass<br>(TNT equivalent) (g)<br />
! colspan="3" | Ricochet<br />
|-<br />
! 0% !! 50% !! 100%<br />
|-<br />
| HEF-T || {{Annotation|HEF-T|High-explosive fragmentation tracer}} || 844 || 0.12 || N/A || 0.1 || 6.57 || 79° || 80° || 81°<br />
|-<br />
| AP-T || {{Annotation|AP-T|Armour-piercing tracer}} || 844 || 0.12 || N/A || N/A || N/A || 47° || 60° || 65°<br />
|-<br />
| HEF-I || {{Annotation|HEF-I|High-explosive fragmentation incendiary}} || 838 || 0.12 || N/A || 0.1 || 11.17 || 79° || 80° || 81°<br />
|-<br />
|}<br />
<br />
The best ammunition for general use is the HE belt, due to it having the highest ratio of HE rounds to AP rounds, making it the most effective against both aircraft and the vast majority of surface targets. Because of this, the HE belt should be the main ammunition once it is unlocked. Additionally, the AP belt, with its higher amount of AP rounds, is better for dealing with armoured targets, so take a decent amount of these as well for specialized usage.<br />
<br />
=== Anti-aircraft armament ===<br />
{{Specs-Fleet-AA}}<br />
<!-- ''An important part of the ship's armament responsible for air defence. Anti-aircraft armament is defined by the weapon chosen with the control <code>Select anti-aircraft weapons</code>. Talk about the ship's anti-air cannons and machine guns, the number of guns and their positions, their effective range, and about their overall effectiveness – including against surface targets. If there are no anti-aircraft armaments, remove this section.'' --><br />
{{main|Lewis 1916 (7.72 mm)}}<br />
<br />
The anti-aircraft armament consists of four 7.72 mm Lewis 1916 machineguns in two twin mounts, one on either side of the bridge. There are 3,880 rounds of ammunition available for each mount, 1,940 rounds per gun, for a total of 7,760 rounds. No horizontal or vertical traverse rates are given in-game, though installing the "Anti-Air Armament Targeting" modification will still increase their traverse rates by 18%. Each gun has a magazine capacity of 97 rounds and a cyclic rate of fire of around 550 rounds/min. With a stock crew, the guns can be reloaded in 18.2 seconds; with an aced crew, they can be reloaded in 14 seconds.<br />
<br />
{{Notice|Turrets are named sequentially, clockwise, starting at the bow}}<br />
<br />
{| class="wikitable" style="text-align:center" width="50%"<br />
! colspan="8" | Anti-aircraft armament guidance<br />
|-<br />
! colspan="2" rowspan="1" | No.1 Turret (starboard)<br />
! colspan="2" rowspan="1" | No.2 Turret (port)<br />
|-<br />
! Horizontal !! Vertical !! Horizontal !! Vertical<br />
|-<br />
| -30°/+45°|| -5°/+50° || -45°/+30° || -5°/+50°<br />
|-<br />
|}<br />
<br />
There are no ammunition options available for this gun on Fairmile B (ML345). Neither belt composition nor penetration statistics are given in-game.<br />
<br />
=== Additional armament ===<br />
{{Specs-Fleet-Additional}}<br />
<!-- ''Describe the available additional armaments of the ship: depth charges, mines, torpedoes. Talk about their positions, available ammunition and launch features such as dead zones of torpedoes. If there is no additional armament, remove this section.'' --><br />
{{main|Mk.VII depth charge|Y-gun Mk.VII depth charge|Type M Mark I mine}}<br />
<br />
Fairmile B (ML345) has five possible loadouts:<br />
<br />
# 14x Mk.VII depth charge<br />
# 6x Y-gun Mk.VII depth charge<br />
# 14x Mk.VII depth charge, 6x Y-gun Mk.VII depth charge<br />
# 8x Type M Mk I mines<br />
# Without load<br />
<br />
'''Depth Charges'''<br />
<br />
[[File:{{PAGENAME}}_DC_Order.png|thumb|Mk.VII depth charges numbered according to their drop order.]]<br />
<br />
The Mk.VII depth charges are carried in racks on the stern, seven on either side, with three in front of the aft gun and four behind. The depth charges are dropped one at a time in the following order: foremost to aftmost and alternating port to starboard, starting with the foremost depth charge on the port side.<br />
<br />
The Y-gun Mk.VII depth charges are fired from a depth charge thrower mounted in front of the aft gun. The depth charge thrower has two arms, one pointed to either side of the boat, and will launch either the port or starboard depth charge depending on the direction the player is currently looking. These cannot be aimed and will always land approximately 50 m away from the boat. After launching, there is a 20 second reload, although the damage model is actually updated after only 10 seconds. Aside from the two depth charges already on the thrower, there are an additional four stored in reserve on the deck just aft of the thrower, two per side.<br />
<br />
Before spawning, the detonation time delay for both types of depth charges can be set anywhere between 3 seconds and 10 seconds.<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="7" | Depth charge characteristics ([[Mk.VII depth charge]])<br />
|-<br />
! Mass (kg)<br />
! Explosive type<br />
! Explosive mass (kg)<br />
! TNT equivalent (kg)<br />
! HE armour<br>penetration (mm)<br />
! Armoured vehicle<br>destruction radius (m)<br />
! Fragment dispersion<br>radius (m)<br />
|-<br />
| 196 || TNT || 130 || 130 || 101 || 8 || 122 <br />
|}<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="7" | Depth charge characteristics ([[Y-gun Mk.VII depth charge]])<br />
|-<br />
! Mass (kg)<br />
! Explosive type<br />
! Explosive mass (kg)<br />
! TNT equivalent (kg)<br />
! HE armour<br>penetration (mm)<br />
! Armoured vehicle<br>destruction radius (m)<br />
! Fragment dispersion<br>radius (m)<br />
|-<br />
| 196 || TNT || 130 || 130 || 101 || 8 || 122 <br />
|}<br />
<br />
There is almost no practical reason to use depth charges on any naval vessel in the game. Although they usually result in a one-hit kill if used properly, they are extremely situational, requiring the player to close to point-blank ranges to even use them. In almost every case, anytime a depth charge could be used, the guns or torpedoes can be used instead to greater effect. In fact, depth charges tend to actually be a liability in battle, since they essentially act as exposed ammo racks before they're dropped. They can be shot at, and if destroyed, they have a chance to detonate, instantly destroying the boat.<br />
<br />
Despite this, some success can be had in dropping them either next to, or in front of a large, slow target. If dropping them next to the target, remember the depth charge drop order, since it's most likely that only the depth charges dropped on the side closest to the enemy will deal any damage. If dropping in front of the target, rush in from the sides as quickly as possible and drop them all at once directly in front of the target. For both cases, set the depth charge time delay to the minimum 3 seconds, since any higher time delay will only allow the depth charge to sink further away from the target, giving them more time to move out of the way. Again, using depth charges is extremely situational, and they will only be a liability the vast majority of the time, so take them at your own discretion. <br />
<br />
'''Mines'''<br />
<br />
[[File:{{PAGENAME}}_Mine_Order.png|thumb|Type M Mk I mines numbered according to their drop order.]]<br />
<br />
The Type M Mk I mines are carried amidships, two on either side in front of the aft gun and similarly behind. They are dropped in the following order (see the image): aftmost to foremost and alternating from port to starboard, starting with the aftmost mine on the port side.<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="4" | Mine characteristics<br />
|-<br />
! Mass (kg)<br />
! Explosive type<br />
! Explosive mass (kg)<br />
! TNT equivalent (kg)<br />
|-<br />
| 600 || TNT || 227 || 227<br />
|}<br />
<br />
Like depth charges, naval mines are situational weapons that act like exposed ammunition racks if not dropped. However, because they do not automatically detonate, they are much more useful. With mines, Fairmile B (ML345) can play a utility role by using the mines to cut off narrow passageways and block capture points, then returning back to a friendly capture points to reload before repeating the process. This playstyle is still very situational, though, as it requires misplay on the enemy's part. Mines have a marker in all gamemodes an enemy players will receive a warning when too close to one, so most players will destroy the mines with gunfire or will simply sail around them. Additionally, mines will also despawn after some period of time, so complete coverage of the entire map is not possible. This playstyle also forces Fairmile B (ML345) to the front lines, which is undesirable due to her poor gun armament.<br />
<br />
Alternatively, mines can also be used in a more proactive role, essentially like a better depth charge as described above, since they have no detonation time delay and have a much larger explosive charge. If using them like this, remember the drop order; it is not the same as the depth charge drop order. All said, mines are still only situationally useful, so take them based on personal preference. <br />
<br />
== Usage in battles ==<br />
<!-- ''Describe the technique of using this ship, the characteristics of her use in a team and tips on strategy. Abstain from writing an entire guide – don't try to provide a single point of view, but give the reader food for thought. Talk about the most dangerous opponents for this vehicle and provide recommendations on fighting them. If necessary, note the specifics of playing with this vehicle in various modes (AB, RB, SB).'' --><br />
<br />
Fairmile B (ML345) has the same primary armament as the previous Fairmile boat, the {{Specs-Link|uk_fairmile_a_ml100}}, although with a few differences. Most notably, the gun is now mounted on the bow, which greatly increases its versatility. The gun is also now equipped with a gun shield and can now elevate to 70°, though neither of these really change the gun's effectiveness; the gun shield can easily be penetrated by almost any sort of gunfire and the increased elevation is meaningless without proper anti-aircraft rounds. Arguably, the gun shield actually makes the gun worse as there is now a greater surface area to target to knock out the gun. Unfortunately, the gun's many weaknesses remain the same. The 3 pdr cannon, like all single-shot weapons of this calibre, has an abysmal damage output that is easily outclassed by any autocannon. Additionally, the accuracy is poor, which, together with the low muzzle velocity and projectile mass, limits the cannon's effective range. These same problems are also present in the anti-aircraft armament. The usefulness of the 7.72 mm Lewis 1916 machineguns are limited in the same way by their poor damage output and low maximum range.<br />
<br />
In contrast, secondary armament is much more capable. Sporting three 20 mm/70 Oerlikon cannons, just one of these by itself will outperform the 3 pdr QF Hotchkiss cannon in damage output. Because of this, Fairmile B (ML345) should be played while controlling the secondary armament, rather than the primary armament. That said, the secondary guns do have their own downsides. First, neither gun mount can fire directly forwards. Second, and more significantly, neither mount can traverse a full 360°, meaning that there will be several seconds of delay between switching from one side of the boat to the other. To avoid this, preemptively turn the guns to the side you most expect enemies to be and try to keep all enemies on only one side of the boat to avoid having to constantly switch directions. Because of the strong armament, Fairmile B (ML345) can be played more aggressively than most of the previous vessels in the tech tree, although keep in mind that the survivability is essentially the same as the Fairmile A (ML100), so stick with the team and make use of cover whenever possible. As with most autocannons and machine guns, be proactive with the reloads. If there isn't much ammunition left in the magazine after an engagement, fire off any remaining ammunition in the 20 mm/70 Oerlikon cannons to begin reloading in safety, retreating to do so if necessary. For Fairmile B (ML345), consider doing this when there are around 60 rounds or less between the three guns.<br />
<br />
One thing of note with Fairmile B (ML345) is the large ammunition storage located in the bow. While it generally doesn't tend to be much of an issue against machine guns and low-calibre autocannons, large-calibre HE can easily set it off. Luckily, this weak spot can be eliminated, albeit at the cost of the 3 pdr cannon, by taking the minimum amount of ammo for that gun and firing all of it off immediately after spawning, emptying the ammo storage. While you do lose use of the 3 pdr cannon, the cannon isn't very useful in and of itself, so if you plan on primarily using the secondary armament anyway, the cost of losing the 3 pdr cannon is outweighed by the increase in survivability.<br />
<br />
Lastly, keep in mind that while controlling the secondary armament, there won't be any effective anti-aircraft guns. The 3 pdr cannon is practically useless against aircraft, and the Lewis machine guns only begin firing once a target is within 1 km, so it's important to manually scan the sky for aircraft. Do not rely on either the primary or anti-aircraft armament for AA defense, but rather, use them as a warning indicator. If they start firing, then you know there is an aircraft nearby, at which point you can either shoot it down yourself, or if you're not confident with your aim, switch away from the secondary armament to give the AI gunners control of the cannons.<br />
<br />
=== Pros and cons ===<br />
<!-- ''Summarise and briefly evaluate the vehicle in terms of its characteristics and combat effectiveness. Mark its pros and cons in the bulleted list. Try not to use more than 6 points for each of the characteristics. Avoid using categorical definitions such as "bad", "good" and the like - use substitutions with softer forms such as "inadequate" and "effective".'' --><br />
<br />
'''Pros:'''<br />
<br />
* Powerful secondary armament<br />
* Ability to carry mines<br />
<br />
'''Cons:'''<br />
<br />
* Very weak primary and anti-air armaments: poor damage output and low effective range<br />
* Prominent ammunition storage in the bow<br />
* Below-average top speed and manoeuvrability<br />
<br />
== History ==<br />
<!-- ''Describe the history of the creation and combat usage of the ship in more detail than in the introduction. If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the ship and adding a block "/History" (example: <nowiki>https://wiki.warthunder.com/(Ship-name)/History</nowiki>) and add a link to it here using the <code>main</code> template. Be sure to reference text and sources by using <code><nowiki><ref></ref></nowiki></code>, as well as adding them at the end of the article with <code><nowiki><references /></nowiki></code>. This section may also include the ship's dev blog entry (if applicable) and the in-game encyclopedia description (under <code><nowiki>=== In-game description ===</nowiki></code>, also if applicable).'' --><br />
<br />
The Fairmile B motor launch originated as an Admiralty design in mid-1939. At the time, the Admiralty was faced with a severe lack of anti-submarine boats. An existing design by the Fairmile Marine Company, the Fairmile A type, was in the works, but a prototype had yet to be produced. Still, the Admiralty saw many issues with the design, largely stemming from its hard chine hull. The Admiralty created a wooden motor launch design of similar dimensions to the Fairmile A type but with a round bilge hull design instead. This design underwent trials later that year and proved itself to be vastly superior to the Fairmile A type in its seakeeping ability. Impressed by the decentralized production scheme of the Fairmile A type, the contract to mass-produce the new design was awarded to the Fairmile Company with an initial order for 13 vessels placed on 22nd September 1939. Like the Fairmile A type, the new design would be manufactured from prefabricated parts under Fairmile's production scheme. Under this system, parts and materials would be sourced from local companies and assembled at Fairmile factories as near to completion as possible. The parts could then be sent in kit form ready for final assembly to any boatyard around the world.<br />
<br />
The new design, now known as the Fairmile B type motor launch, had a length of 112 ft, a beam of 18 ft 3 in, and a draught of around 5 ft. As originally designed, the boats were to be powered by three Hall-Scott Defender petrol engines, 600 bph each, provided under Lend-Lease from America. However, due to a shortage of supply from the American manufacturer, it was reluctantly decided that the boats should instead be powered by only two engines, the loss in speed deemed acceptable if it meant that production could potentially be increased by 50%. With only two engines, the Fairmile B type could achieve a maximum speed of 20 knots. With a fuel capacity of 2,305 gallons, they had a range of 1,500 miles at 12 knots, though above-deck fuel tanks would frequently be added to further increase the operational range.<br />
<br />
Unlike the Fairmile A type, the question of the Fairmile B type's armament was decided from the beginning. The Fairmile B type was originally designed for anti-submarine work, specified to be able to carry 12 depth charges and ASDIC sonar equipment. Its intended role was also reflected in its gun armament: one 3-pdr Hotchkiss cannon aft and a pair of Lewis guns forward. Very early on, it was decided that the Fairmile B type should also have the option for variations in its armament. To achieve this, steel strips with tapped holes were installed on the deck onto which any desired armament could be mounted. For the boat to be refitted, all that needed to be done was to unbolt the old armament and swap in the new armament. Because of this, the Fairmile B type could incredibly be entirely refitted in just 48 hours. Due to this modular armament design, the Fairmile B types would often receive many armament refits for a variety of roles — including as minesweepers, minelayers, convoy escorts, submarine chasers, gun boats, air-sea rescue launches, and even as motor torpedo boats — depending on what was needed of them in the areas they were assigned to.<br />
<br />
Over the course of World War II, Fairmile B type parts kits would be shipped to various boatyards all throughout the British Empire and Commonwealth. From Jamaica to Singapore, Canada to New Zealand, over 650 Fairmile B types were built from 1940 to 1945. During the war, the Fairmile B types were operated by the Royal Navy, the Royal Canadian Navy, the Royal Australian Navy, the Royal New Zealand Navy, the Royal Indian Navy, the Free French Naval Forces, and the Royal Norwegian Navy. They repeatedly proved their worth, making up for their lack of speed with efficiency, versatility, and reliability. After the war, with the need for so many boats gone, many of the surviving Fairmile B types in Royal Navy service would be scrapped or sold as pleasure boats, though some Fairmile B types were either sold or given to many minor navies, including the Italian Navy, the Royal Netherlands Navy, the South African Navy, the Burmese Navy, the Royal Hellenic Navy, the South African Navy, and the Turkish Navy, which all continued to operate them for many years after the war.<br />
<br />
ML-345 was a Fairmile B type motor launch ordered on 21st August 1940. She was built by Diesel Constructors at Isleworth, London and was completed on 30th March 1942. ML-345 survived the war and was eventually sold in 1946.<br />
<br />
== Media ==<br />
<!-- ''Excellent additions to the article would be video guides, screenshots from the game, and photos.'' --><br />
<br />
;'''Skins'''<br />
<br />
* [https://live.warthunder.com/feed/camouflages/?vehicleCountry=britain&vehicleType=ship&vehicleClass=gun_boat&vehicle=uk_fairmile_b_ml345 Skins and camouflages for the {{PAGENAME}} from live.warthunder.com.]<br />
<br />
== See also ==<br />
<!-- ''Links to articles on the War Thunder Wiki that you think will be useful for the reader, for example:''<br />
* ''reference to the series of the ship;''<br />
* ''links to approximate analogues of other nations and research trees.'' --><br />
<br />
* {{Specs-Link|uk_fairmile_a_ml100}}<br />
* {{Specs-Link|uk_70ft_mgb}}<br />
* {{Specs-Link|uk_dark_class}}<br />
<br />
== External links ==<br />
<!-- ''Paste links to sources and external resources, such as:''<br />
* ''topic on the official game forum;''<br />
* ''encyclopedia page on ship;''<br />
* ''other literature.'' --><br />
<br />
* [http://cfv.org.uk/research/boat/database <nowiki>[Coastal Forces Veterans]</nowiki> Boat Database]<br />
<br />
===Bibliography===<br />
<br />
* Gaumont British News. (Producer). & White, W. B. (Director). (1941). ''THE STORY OF THE FAIRMILE PATROL BOAT'' [Film]. England: Gaumont British News.<br />
* Konstam, A. (2010). ''British Motor Gun Boat 1939–45'' (pp. 12-15, 40-41). Oxford, England: Osprey Publishing. ISBN 978-1-84908-077-4.<br />
* Lambert, J., & Ross A. (1990). ''Allied Coastal Forces of World War II Volume 1: Fairmile Designs and U.S. Submarine Chasers'' (pp. 9-28). London, England: Conway Maritime Press. ISBN 0-85177-519-5.<br />
<br />
{{Britain boats}}</div>U27474208https://old-wiki.warthunder.com/index.php?title=Fairmile_A_(ML100)&diff=107844Fairmile A (ML100)2021-07-29T01:56:44Z<p>U27474208: Wording</p>
<hr />
<div>{{Specs-Card<br />
|code=uk_fairmile_a_ml100<br />
|images={{Specs-Card-Image|GarageImage_{{PAGENAME}}.jpg}}<br />
}}<br />
<br />
== Description ==<br />
<!-- ''In the first part of the description, cover the history of the ship's creation and military application. In the second part, tell the reader about using this ship in the game. Add a screenshot: if a beginner player has a hard time remembering vehicles by name, a picture will help them identify the ship in question.'' --><br />
The '''{{Specs|name}}''' is a rank {{Specs|rank}} British motor gun boat {{Battle-rating}}. It was introduced in [[Update 1.83 "Masters of the Sea"]] as part of the British fleet closed beta test. With the split of the naval tech trees in [[Update "New Power"]], {{PAGENAME}} was moved to the coastal fleet tech tree.<br />
<br />
== General info ==<br />
=== Survivability and armour ===<br />
{{Specs-Fleet-Armour}}<br />
<!-- ''Talk about the vehicle's armour. Note the most well-defended and most vulnerable zones, e.g. the ammo magazine. Evaluate the composition of components and assemblies responsible for movement and manoeuvrability. Evaluate the survivability of the primary and secondary armaments separately. Don't forget to mention the size of the crew, which plays an important role in fleet mechanics. Save tips on preserving survivability for the "Usage in battles" section. If necessary, use a graphical template to show the most well-protected or most vulnerable points in the armour.'' --><br />
<br />
[[File:{{PAGENAME}}_Internals.png|thumb|{{PAGENAME}} internals (starboard). The aft ammunition storage is partially obscured by the fuel tanks here.]]<br />
<br />
Fairmile A (ML100) has the following armour layout:<br />
<br />
* Hull: 24 mm, wood<br />
* Superstructure: 2 mm, steel<br />
<br />
Any gun in the game will easily be able to penetrate the hull and superstructure at any practical range.<br />
<br />
The hull is split into four sections. Starting from the bow and working towards the stern, the first compartment starts at the bow and ends in the middle of the bridge, just in front of the pumps; the second ends just between the radio station and the engines, around the funnel; the third ends in front of the aft gun mount; and the fourth ends at the stern. <br />
<br />
Fairmile A (ML100) can be hull-broken by any round with a large enough diameter and explosive mass. In general, this is limited to HE rounds greater with a diameter greater than or equal to 4 inches (102 mm) with an explosive mass greater than 1.5 kg. At Fairmile A (ML100)'s own battle rating, there is only one gun capable of hull-breaking her:<br />
<br />
* the [[8cwt QF Mk I (114 mm)|114 mm 8cwt QF Mk I]], found on {{Specs-Link|uk_dark_class}}.<br />
<br />
There are two ammunition storages: the first, holding the ammunition for the secondary armament, is located in the bow below the fore twin 7.72 mm Lewis 1916 machine gun mount. The other ammunition storage, holding the ammunition for the primary armament, is located in the stern on the port side, below and behind the aft 3 pdr QF Hotchkiss cannon. Both ammunition storages are located just above the waterline and destroying either will instantly destroy the boat.<br />
<br />
Fairmile A (ML100) has a crew complement of 14. With a stock crew, it is knocked out when 9 crew are lost; with an aced crew, this is increased to 10. Overall, the survivability is average.<br />
<br />
=== Mobility ===<br />
{{Specs-Fleet-Mobility}}<br />
<!-- ''Write about the ship's mobility. Evaluate its power and manoeuvrability, rudder rerouting speed, stopping speed at full tilt, with its maximum forward and reverse speed.'' --><br />
<br />
{{NavalMobility<br />
|SpeedForwardStockAB = 46<br />
|SpeedBackStockAB = 14<br />
|TurnTimeStockAB = 40.88<br />
|TurnSpeedStockAB = 34<br />
<br />
|TurnTimeSpadedAB = 26.99<br />
|TurnSpeedSpadedAB = 33<br />
<br />
|SpeedForwardStockRB = 40<br />
|SpeedBackStockRB = 12<br />
|TurnTimeStockRB = 47.12<br />
|TurnSpeedStockRB = 34<br />
<br />
|TurnTimeSpadedRB = 37.33<br />
|TurnSpeedSpadedRB = 34<br />
}}<br />
<br />
Fairmile A (ML100) has a displacement of 57 tons.<br />
<br />
=== Modifications and economy ===<br />
{{Specs-Economy}}<br />
<br />
The recommended modification research order is:<br />
<br />
# Tool Set<br />
# Fire Protection System<br />
# 7.7 mm API belt<br />
# Smokescreen<br />
# Propeller Replacement<br />
# Improved Rangefinder<br />
# Artillery Support<br />
<br />
After that, prioritize researching the rest of the seakeeping modifications, followed by the remaining modifications in whatever order you prefer.<br />
<br />
== Armament ==<br />
{{Specs-Fleet-Armaments}}<br />
=== Primary armament ===<br />
{{Specs-Fleet-Primary}}<br />
<!-- ''Provide information about the characteristics of the primary armament. Evaluate their efficacy in battle based on their reload speed, ballistics and the capacity of their shells. Add a link to the main article about the weapon: <code><nowiki>{{main|Weapon name (calibre)}}</nowiki></code>. Broadly describe the ammunition available for the primary armament, and provide recommendations on how to use it and which ammunition to choose.'' --><br />
{{main|3 pdr QF Hotchkiss (47 mm)}}<br />
<br />
The primary armament consists of a single 47 mm 3 pdr QF Hotchkiss cannon mounted aft, with a maximum of 300 rounds of ammunition. Stock, the mount can traverse horizontally at a rate of 34°/s and vertically at a rate of 21°/s; with the "Primary Armament Targeting" modification installed, this is increased to 40°/s and 25°/s respectively. The gun is single-shot with a nominal rate of fire of 30 rounds/min. With a stock crew, it can be reloaded in 2.6 seconds; with an aced crew, it can be reloaded in 2 seconds.<br />
<br />
{| class="wikitable" style="text-align:center" width="25%"<br />
! colspan="2" | Primary armament guidance<br />
|-<br />
! Horizontal !! Vertical<br />
|-<br />
| ±180° || -5°/+25°<br />
|-<br />
|}<br />
<br />
There is only one ammunition type available:<br />
<br />
* 3 pdr Mk.2 HE<br />
<br />
{| class="wikitable" style="text-align:center" width="100%"<br />
! colspan="8" | Penetration statistics<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! rowspan="2" | Type of<br>warhead<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 100 m !! 1,000 m !! 2,000 m !! 3,000 m !! 4,000 m !! 5,000 m<br />
|-<br />
| 3 pdr Mk.2 HE || {{Annotation|HE|High-explosive}} || 4 || 4 || 4 || 4 || 4 || 4<br />
|-<br />
|}<br />
{| class="wikitable" style="text-align:center" width="100%"<br />
! colspan="10" | Shell details<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! rowspan="2" | Type of<br>warhead<br />
! rowspan="2" | Velocity<br>(m/s)<br />
! rowspan="2" | Projectile<br>Mass (kg)<br />
! rowspan="2" | Fuse delay<br>(m)<br />
! rowspan="2" | Fuse sensitivity<br>(mm)<br />
! rowspan="2" | Explosive Mass<br>(TNT equivalent) (g)<br />
! colspan="3" | Ricochet<br />
|-<br />
! 0% !! 50% !! 100%<br />
|-<br />
| 3 pdr Mk.2 HE || {{Annotation|HE|High-explosive}} || 571 || 1.5 || 0 || 0.1 || 132 || 79° || 80° || 81°<br />
|-<br />
|}<br />
<br />
=== Secondary armament ===<br />
{{Specs-Fleet-Secondary}}<br />
<!-- ''Some ships are fitted with weapons of various calibres. Secondary armaments are defined as weapons chosen with the control <code>Select secondary weapon</code>. Evaluate the secondary armaments and give advice on how to use them. Describe the ammunition available for the secondary armament. Provide recommendations on how to use them and which ammunition to choose. Remember that any anti-air armament, even heavy calibre weapons, belong in the next section. If there is no secondary armament, remove this section.'' --><br />
{{main|Lewis 1916 (7.72 mm)}}<br />
<br />
The secondary armament consists of six 7.72 mm Lewis 1916 machineguns in three twin mounts, one mount on the bow and the other two amidships. There are 3,880 rounds of ammunition available for each mount, 1,940 rounds per gun, for a total of 11,640 rounds. Stock, the mounts can traverse horizontally at a rate of 64°/s and vertically at a rate of 55°/s; with the "Auxiliary Armament Targeting" modification installed, this is increased to 75°/s and 65°/s respectively. Each gun has a magazine capacity of 97 rounds and a cyclic rate of fire of around 550 rounds/min. With a stock crew, the guns can be reloaded in 18.2 seconds; with an aced crew, they can be reloaded in 14 seconds.<br />
<br />
{{Notice|Turrets are named sequentially, clockwise, starting at the bow}}<br />
<br />
{| class="wikitable" style="text-align:center" width="75%"<br />
! colspan="6" | Secondary armament guidance<br />
|-<br />
! colspan="2" rowspan="1" | No.1 Turret (fore)<br />
! colspan="2" rowspan="1" | No.2 Turret (starboard)<br />
! colspan="2" rowspan="1" | No.3 Turret (port)<br />
|-<br />
! Horizontal !! Vertical !! Horizontal !! Vertical !! Horizontal !! Vertical<br />
|-<br />
| ±180° || -5°/+70° || ±80° || -5°/+70° || ±80° || -5°/+70°<br />
|-<br />
|}<br />
<br />
There are three ammunition types available:<br />
<br />
* Universal: {{Annotation|AP|Armour-piercing}}{{-}}{{Annotation|T|Tracer}}{{-}}{{Annotation|AP|Armour-piercing}}{{-}}{{Annotation|T|Tracer}}<br />
<br />
* 7.7 mm AP belt: {{Annotation|AP|Armour-piercing}}{{-}}{{Annotation|AP|Armour-piercing}}{{-}}{{Annotation|AP|Armour-piercing}}{{-}}{{Annotation|T|Tracer}}<br />
<br />
* 7.7 mm API belt: {{Annotation|IT|Incendiary tracer}}{{-}}{{Annotation|IT|Incendiary tracer}}{{-}}{{Annotation|IT|Incendiary tracer}}{{-}}{{Annotation|AP|Armour-piercing}}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="7" | Penetration statistics (belt)<br />
|-<br />
! rowspan="2" data-sort-type="text" | Belt<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| Universal || 10 || 9 || 8 || 7 || 6 || 5<br />
|-<br />
| 7.7 mm AP belt || 10 || 9 || 8 || 7 || 6 || 5<br />
|-<br />
| 7.7 mm API belt || 10 || 9 || 8 || 7 || 6 || 5<br />
|-<br />
|}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="8" | Penetration statistics (shell)<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! rowspan="2" | Type of<br>warhead<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| AP || {{Annotation|AP|Armour-piercing}} || 10 || 9 || 8 || 7 || 6 || 5<br />
|-<br />
| T || {{Annotation|T|Tracer}} || 9 || 8 || 7 || 6 || 5 || 4<br />
|-<br />
| IT || {{Annotation|IT|Incendiary tracer}} || 10 || 9 || 7 || 6 || 5 || 5<br />
|-<br />
|}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="10" | Shell details<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! rowspan="2" | Type of<br>warhead<br />
! rowspan="2" | Velocity<br>(m/s)<br />
! rowspan="2" | Projectile<br>Mass (kg)<br />
! rowspan="2" | Fuse delay<br>(m)<br />
! rowspan="2" | Fuse sensitivity<br>(mm)<br />
! rowspan="2" | Explosive Mass<br>(TNT equivalent) (g)<br />
! colspan="3" | Ricochet<br />
|-<br />
! 0% !! 50% !! 100%<br />
|-<br />
| AP || {{Annotation|AP|Armour-piercing}} || 853 || 0.01 || N/A || N/A || N/A || 47° || 56° || 65°<br />
|-<br />
| T || {{Annotation|T|Tracer}} || 835 || 0.01 || N/A || N/A || N/A || 47° || 56° || 65°<br />
|-<br />
| IT || {{Annotation|IT|Incendiary tracer}} || 920 || 0.01 || N/A || N/A || N/A || 47° || 56° || 65°<br />
|-<br />
|}<br />
<br />
While the armour-piercing round and the the incendiary tracer round deal about the same amount of the damage, the standard tracer round deals incredibly little damage to both surface targets and aircraft. Because of this, the AP belt is a strict upgrade from the default belt. Compared to the AP rounds, the IT rounds also have a much higher muzzle velocity. Altogether, this makes the API belt the best overall, due both to its lack of standard tracer rounds and better balistic properties.<br />
<br />
=== Additional armament ===<br />
{{Specs-Fleet-Additional}}<br />
<!-- ''Describe the available additional armaments of the ship: depth charges, mines, torpedoes. Talk about their positions, available ammunition and launch features such as dead zones of torpedoes. If there is no additional armament, remove this section.'' --><br />
{{main|Mk.VII depth charge|Type M Mark I mine}}<br />
<br />
{{PAGENAME}} has three possible loadouts:<br />
<br />
# 12x Mk.VII depth charge<br />
# 5x Type M Mk I mines<br />
# Without load<br />
<br />
'''Depth Charges'''<br />
<br />
[[File:{{PAGENAME}}_DC_Order.png|thumb|Mk.VII depth charges numbered according to their drop order.]]<br />
<br />
The Mk.VII depth charges are carried in racks amidships between the funnel and the aft gun mount, six on each side. They are dropped in the following order: foremost to aftmost and alternating port to starboard, starting with the foremost depth charge on the port side.<br />
<br />
Before spawning, the detonation time delay can be set anywhere between 3 seconds and 10 seconds.<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="7" | Depth charge characteristics<br />
|-<br />
! Mass (kg)<br />
! Explosive type<br />
! Explosive mass (kg)<br />
! TNT equivalent (kg)<br />
! HE armour penetration (mm)<br />
! Armoured vehicle destruction radius (m)<br />
! Fragment dispersion radius (m)<br />
|-<br />
| 196 || TNT || 130 || 130 || 101 || 8 || 122 <br />
|}<br />
<br />
There is almost no practical reason to use depth charges on any naval vessel in the game. Although they usually result in a one-hit kill if used properly, they are extremely situational, requiring the player to close to point-blank ranges to even use them. In almost every case, anytime a depth charge could be used, the guns or torpedoes can be used instead to greater effect. In fact, depth charges tend to actually be a liability in battle, since they essentially act as exposed ammo racks before they're dropped. They can be shot at, and if destroyed, they have a chance to detonate, instantly destroying the boat.<br />
<br />
Despite this, some success can be had in dropping them either next to, or in front of a large, slow target. If dropping them next to the target, remember the depth charge drop order, since it's most likely that only the depth charges dropped on the side closest to the enemy will deal any damage. If dropping in front of the target, rush in from the sides as quickly as possible and drop them all at once directly in front of the target. For both cases, set the depth charge time delay to the minimum 3 seconds, since any higher time delay will only allow the depth charge to sink further away from the target, giving them more time to move out of the way. Again, using depth charges is extremely situational, and they will only be a liability the vast majority of the time, so take them at your own discretion.<br />
<br />
'''Mines'''<br />
<br />
[[File:{{PAGENAME}}_Mine_Order.png|thumb|Type M Mk I mines numbered according to their drop order.]]<br />
<br />
The Type M Mk I mines are carried one on the stern and four amidships between the funnel and the aft gun mount, two on each side. They are dropped in the following order:<br />
<br />
# Stern<br />
# Port, foremost<br />
# Port, aftmost<br />
# Starboard, foremost<br />
# Starboard, aftmost<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="4" | Mine characteristics<br />
|-<br />
! Mass (kg)<br />
! Explosive type<br />
! Explosive mass (kg)<br />
! TNT equivalent (kg)<br />
|-<br />
| 600 || TNT || 227 || 227<br />
|}<br />
<br />
Like depth charges, naval mines are situational weapons that act like exposed ammunition racks if not dropped. However, because they do not automatically detonate, they are much more useful. With mines, Fairmile A (ML100) can play a utility role by using the mines to cut off narrow passageways and block capture points, then returning back to a friendly capture points to reload before repeating the process. This playstyle is still very situational, though, as it requires misplay on the enemy's part. Mines have a marker in all gamemodes an enemy players will receive a warning when too close to one, so most players will destroy the mines with gunfire or will simply sail around them. Additionally, mines will also despawn after some period of time, so complete coverage of the entire map is not possible. This playstyle also forces Fairmile A (ML100) to the front lines, which is undesirable due to her poor gun armament.<br />
<br />
Alternatively, mines can also be used in a more proactive role, essentially like a better depth charge as described above, since they have no detonation time delay and have a much larger explosive charge. If using them like this, remember the drop order; it is not the same as the depth charge drop order. All said, mines are still only situationally useful, so take them based on personal preference.<br />
<br />
== Usage in battles ==<br />
<!-- ''Describe the technique of using this ship, the characteristics of her use in a team and tips on strategy. Abstain from writing an entire guide – don't try to provide a single point of view, but give the reader food for thought. Talk about the most dangerous opponents for this vehicle and provide recommendations on fighting them. If necessary, note the specifics of playing with this vehicle in various modes (AB, RB, SB).'' --><br />
<br />
Fairmile A (ML100)'s primary armament — a single 3 pdr QF Hotchkiss cannon — is rather poor. It's a single-shot cannon and, while it is fairly average compared to similar weapons, all single-shot cannons at this calibre have incredibly poor damage output and will be outperformed by almost any automatic weapon. The gun's accuracy also is unreliable, and, combined with the low muzzle velocity, hitting moving targets beyond about 1.5 km can be difficult. Additionally, the gun is mounted on the stern which only further reduces its versatility. Unfortunately, the secondary armament doesn't fare much better. Because of their arrangement, only two of the four twin mounts can be brought to bear at once. This essentially limits Fairmile A (ML100) to only half that of {{Specs-Link|uk_mtb_1series}}, whose armament wasn't very outstanding to begin with. Like the 3 pdr QF Hotchkiss, the 7.72 mm Lewis 1916 machine guns are themselves plagued by poor damage output and a low maximum range. Even so, with only four of them on target, their damage output actually ends up being better than the 3 pdr cannon, so primarily use the machine guns and only switch to the cannon if they get knocked out.<br />
<br />
Because of the bad damage output, Fairmile A (ML100) will feel much less survivable compared to other similar vessels, despite actually having a larger crew. Ironically, the greatest determining factor of a vessel's survivability is actually its firepower rather than any direct defensive quality. Fairmile A (ML100) is simply unable to destroy enemies as quickly as others can and will thus be subject to enemy fire for longer periods of time. Because of this, it is especially important to maximize damage output when playing Fairmile A (ML100). Only fire when you know the shots will land and prioritize disabling enemy weaponry. Additionally, the reloads are quite long, so be proactive with the reloads by firing off any remaining ammunition after engagements.<br />
<br />
Like MTB-1 1 series or anything else armed with low-calibre machine guns, Fairmile A (ML100) is best played at close ranges to negate the guns' range disadvantage. Unlike those though, Fairmile A (ML100) lacks the firepower necessary to stay on the front line, so try to stay on the sides and make use of cover as much as possible. From there, play a supporting role by ambushing enemies distracted by your teammates. Whenever possible, only fire at enemies you know you can take out to avoid drawing any unnecessary attention to yourself. For example, any vessels with armour whatsoever will be practically immune to both the machine guns and the cannon, so if you come up against such opponents, as long as they don't notice you, it's best to just mark them on the map for your team, call artillery, and then simply let them pass.<br />
<br />
=== Pros and cons ===<br />
<!-- ''Summarise and briefly evaluate the vehicle in terms of its characteristics and combat effectiveness. Mark its pros and cons in the bulleted list. Try not to use more than 6 points for each of the characteristics. Avoid using categorical definitions such as "bad", "good" and the like - use substitutions with softer forms such as "inadequate" and "effective".'' --><br />
<br />
'''Pros:'''<br />
<br />
* Ability to carry mines<br />
<br />
'''Cons:'''<br />
<br />
* Very weak armament: both primary and secondary guns have low damage outputs<br />
* Primary armament has poor accuracy<br />
* Only 4 secondary guns can be brought to bear at once<br />
* Poor survivability<br />
* Below-average top speed and manoeuvrability<br />
<br />
== History ==<br />
<!-- ''Describe the history of the creation and combat usage of the ship in more detail than in the introduction. If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the ship and adding a block "/History" (example: <nowiki>https://wiki.warthunder.com/(Ship-name)/History</nowiki>) and add a link to it here using the <code>main</code> template. Be sure to reference text and sources by using <code><nowiki><ref></ref></nowiki></code>, as well as adding them at the end of the article with <code><nowiki><references /></nowiki></code>. This section may also include the ship's dev blog entry (if applicable) and the in-game encyclopedia description (under <code><nowiki>=== In-game description ===</nowiki></code>, also if applicable).'' --><br />
<br />
In early 1939, Noel Macklin, a British industrialist, first became aware of the Royal Navy's lack of anti-submarine craft through an article by Vice-Admiral Cecil Vivian Usborne. Realizing the growing danger of German U-boats, and because the Royal Navy was already stretched thin as it was, Usborne advised the Admiralty to adopt a vast fleet of anti-submarine boats to counter the threat. This, however, was largely dismissed by the Admiralty, and in response, Macklin devised his own plan to manufacture the boats. Under his plan, prefabricated parts, built as near to completion as possible, would be sent in kit form ready for final assembly and fitting to the many minor boatbuilding companies throughout the country. This would allow parts and materials to be sourced from companies with no boatbuilding experience and assembled by unskilled labour at unutilized boatyards. Under this decentralized system, the boats could be manufactured quicker and cheaper than had they been manufactured at a single yard, all the while without straining major boatbuilding companies — such as Vospers, British Power Boat Co., White, or Thornycroft — which were all vital in producing specialized, high-speed MTBs and MGBs. Macklin met with Usborne in May 1939 to discuss his idea, and together, they immediately began assembling a team of naval engineers and designers, founding the Fairmile Marine Company. Fairmile quickly produced a wooden motor launch design and proposed the idea to the Admiralty. Ultimately, though, the Admiralty declined to make an order. Nevertheless, convinced in the idea, Fairmile proceeded to produce a prototype as a private venture.<br />
<br />
The prototype was ordered from Woodnutt & Co. at St Helens, Isle of Wight, on 27th July 1939 and was laid down on 29th October 1939. It had a hard chine hull and had a length overall of 110 ft, a beam of 17 ft 5 in, a draught of 4 ft 6 in, and a displacement of around 57 tons. It was powered by three Hall-Scott Defender petrol engines, each producing 600 bhp each, allowing it to achieve a top speed of 25 knots. At this time, with the prospect of war approaching ever closer, the Admiralty had no choice but to acknowledge the serious submarine threat and reconsidered Macklin's proposal. While the prototype was still under construction, the Admiralty purchased it in the summer of 1939. This order was followed by another on 22nd September 1939 for an additional 24 boats, although this was later revised to 11 Fairmile designs — the Fairmile A type — and 13 boats of a new Admiralty design — the Fairmile B type. The twelve Fairmile A motor launches were built by ten different companies and were all completed between May and June 1940, all twelve entering service shortly thereafter as MLs 100-111.<br />
<br />
Interestingly, the Fairmile A types were ordered by the Admiralty without a specified armament. As such, the decks of the boats were not built to take heavy mounting equipment. As a stopgap measure, it was decided that they should be armed with a single aft QF 3-pdr Hotchkiss cannon and several twin Lewis gun pintle mounts, with one on the bow and a pair of mounts amidships. For hunting U-boats, the boats were given ASDIC equipment and depth charge racks, one on each side, capable of carrying up to six depth charges each. Early into service, the boats also received a Holman projector which was mounted amidships. In their first months at war, the Fairmile A types hunted U-boats and protected convoys in British coastal waters.<br />
<br />
Throughout their service, though, the Fairmile A types were plagued by their handling issues and short operational range. By 1941, with the superior Fairmile B type motor launches already in service, any surviving Fairmile A types were converted into minelayers, their depth charge racks replaced with mine racks capable of carrying either six bottom mines or nine moored mines. The 3-pdr Hotchkiss was relocated to the bow with twin 0.5 in Vickers machinegun Mark IV mount added in its place. As minelayers, their funnels were also removed, exhaust rerouted out through the sides instead. In 1943, the Fairmile A types received an upgrade in the form of a single 20 mm Oerlikon cannon in place of the removed funnel and an aft twin 20 mm Oerlikon Mark IX mount. By 1945, any surviving Fairmile A types were converted once again, this time into anti-submarine escorts. As part of this conversion, they received depth charge racks, a Y-gun depth charge thrower, Type 291 radar, and two 2-inch rocket flare launchers. After the end of the war, the surviving Fairmile A types were put into reserve and were all eventually sold between 1947 and 1948.<br />
<br />
As the prototype, ML-100 was the first of the Fairmile A types to be built. She was ordered from Woodnutt & Co. at St Helens on 27th July 1939, laid down on 29th October 1939, and completed on 19th May 1940. From 1940 to 1941, ML-100 was based at HMS Midge, Great Yarmouth and performed anti-submarine escort duties around Grisby. In either late 1941 or early 1942, ML-100 was converted for minelaying operations and was transferred to the 51st ML Flotilla based at HMS Beehive, Felixstowe. She was commanded by the following:<br />
<br />
* T/Lt. F.E.R. Merritt, RNZNVR: October 1942 to December 1943<br />
* T/Lt. G.A. Wright, RCNVR: February 1944 to April 1944<br />
* T/S.Lt. J.E. Branch, RNVR: June 1944 to October 1944<br />
* T/Lt. E.C. Mercer, RNVR: March 1945 to July 1945<br />
<br />
ML-100 survived the war and was sold in October 1947.<br />
<br />
== Media ==<br />
<!-- ''Excellent additions to the article would be video guides, screenshots from the game, and photos.'' --><br />
<br />
;'''Skins'''<br />
<br />
* [https://live.warthunder.com/feed/camouflages/?vehicleCountry=britain&vehicleType=ship&vehicleClass=gun_boat&vehicle=uk_fairmile_a_ml100 Skins and camouflages for the {{PAGENAME}} from live.warthunder.com.]<br />
<br />
== See also ==<br />
<!-- ''Links to articles on the War Thunder Wiki that you think will be useful for the reader, for example:''<br />
* ''reference to the series of the ship;''<br />
* ''links to approximate analogues of other nations and research trees.'' --><br />
<br />
* {{Specs-Link|uk_fairmile_b_ml345}}<br />
* {{Specs-Link|uk_mtb_1series}}<br />
* {{Specs-Link|uk_70ft_mgb}}<br />
<br />
== External links ==<br />
<!-- ''Paste links to sources and external resources, such as:''<br />
* ''topic on the official game forum;''<br />
* ''encyclopedia page on the ship;''<br />
* ''other literature.'' --><br />
<br />
* [http://cfv.org.uk/research/boat/database <nowiki>[Coastal Forces Veterans]</nowiki> Boat Database]<br />
* [https://www.unithistories.com/units_british/RN_CoastalForces.html#ML%20Boats <nowiki>[Unit Histories]</nowiki> Royal Navy Coastal Forces 1940-1945]<br />
* [http://www.naval-history.net/WW2BritishLosses3Coastal.htm <nowiki>[naval-history.net]</nowiki> British vessels lost at sea in World War 2 - MGB, MTB, SGB, ML, etc] - originally published in ''British Vessels Lost at Sea, 1935-45'', His Majesty's Stationary Office, 1947<br />
<br />
===Bibliography===<br />
<br />
* Gaumont British News. (Producer). & White, W. B. (Director). (1941). ''THE STORY OF THE FAIRMILE PATROL BOAT'' [Film]. England: Gaumont British News.<br />
* Konstam, A. (2010). ''British Motor Gun Boat 1939–45'' (pp. 12-15, 40-41). Oxford, England: Osprey Publishing. ISBN 978-1-84908-077-4.<br />
* Lambert, J., & Ross A. (1990). ''Allied Coastal Forces of World War II Volume 1: Fairmile Designs and U.S. Submarine Chasers'' (pp. 9-28). London, England: Conway Maritime Press. ISBN 0-85177-519-5.<br />
<br />
{{Britain boats}}</div>U27474208https://old-wiki.warthunder.com/index.php?title=MTB-1(1)&diff=107843MTB-1(1)2021-07-29T01:54:09Z<p>U27474208: Updated hullbreak information</p>
<hr />
<div>{{About<br />
| about = British motor torpedo boat '''{{PAGENAME}}'''<br />
| usage = other versions<br />
| link = MTB-1 (Family)<br />
}}<br />
{{Specs-Card<br />
|code=uk_mtb_1series<br />
|images={{Specs-Card-Image|GarageImage_{{PAGENAME}}.jpg}}<br />
}}<br />
<br />
== Description ==<br />
<!-- ''In the first part of the description, cover the history of the ship's creation and military application. In the second part, tell the reader about using this ship in the game. Add a screenshot: if a beginner player has a hard time remembering vehicles by name, a picture will help them identify the ship in question.'' --><br />
The '''{{Specs|name}}''' is a rank {{Specs|rank}} British motor torpedo boat {{Battle-rating}}. It was introduced in [[Update 1.83 "Masters of the Sea"]] as part of the British fleet closed beta test. With the split of the naval tech trees in [[Update "New Power"]], {{PAGENAME}} was moved to the coastal fleet tech tree where it is now the reserve vehicle.<br />
<br />
Decently fast and manoeuvrable, MTB-1(1) is the reserve vehicle of the British coastal fleet tech tree. It carries a pair of torpedoes and sports a large number of guns, eight 7.72 mm Lewis 1916 machine guns in total. However, each machine gun individually has a poor damage output and a low effective range, so combined with her low survivability, extra caution is needed to fully utilize MTB-1(1).<br />
<br />
There is a premium version of this vehicle, {{Specs-Link|uk_mtb_2series}}, which differs in the gun mount placement and number of depth charges.<br />
<br />
== General info ==<br />
=== Survivability and armour ===<br />
{{Specs-Fleet-Armour}}<br />
<!-- ''Talk about the vehicle's armour. Note the most well-defended and most vulnerable zones, e.g. the ammo magazine. Evaluate the composition of components and assemblies responsible for movement and manoeuvrability. Evaluate the survivability of the primary and secondary armaments separately. Don't forget to mention the size of the crew, which plays an important role in fleet mechanics. Save tips on preserving survivability for the "Usage in battles" section. If necessary, use a graphical template to show the most well-protected or most vulnerable points in the armour.'' --><br />
<br />
[[File:{{PAGENAME}}_Internals.png|thumb|{{PAGENAME}} internals (starboard). Note the ammo storage between the bridge and the forward gun mount.]]<br />
<br />
MTB-1(1) has the following armour layout:<br />
<br />
* Hull: 24 mm, wood<br />
* Superstructure: 2 mm, steel<br />
<br />
Any gun in the game will easily be able to penetrate the hull and superstructure at any range.<br />
<br />
The hull is split into three sections. Starting from the bow and working towards the stern, the first section starts at the bow and ends after the ammunition storage; the second ends just behind the bridge; and the third ends at the stern. <br />
<br />
Any round with a large enough diameter and explosive mass can hull break MTB-1(1). In general, this is limited to HE rounds with a diameter greater than or equal to 4 inches (102 mm) with an explosive mass greater than 1.5 kg. At MTB-1(1)'s own battle rating, there is only one gun capable of hull-breaking her:<br />
<br />
* the [[8cwt QF Mk I (114 mm)|114 mm 8cwt QF Mk I]], found on {{Specs-Link|uk_dark_class}}.<br />
<br />
There is one ammunition storage that holds ammunition for both the fore and aft gun turrets. It is located directly behind the forward gun turret just above the waterline. Destroying it will instantly destroy MTB-1(1).<br />
<br />
MTB-1(1) has a crew complement of 11. With a stock crew, it is knocked out when 7 crew are lost; with an aced crew, this is increased to 8. <br />
<br />
While MTB-1(1)'s crew complement is about average when comparing vessels with the same battle rating, her overall survivability is rather poor when compared to everything in her battle rating range. The placement of the guns also forces MTB-1(1) to expose the rear hull sections to get all the guns on target, something not required with most other reserve vessels. <br />
<br />
=== Mobility ===<br />
{{Specs-Fleet-Mobility}}<br />
<!-- ''Write about the ship's mobility. Evaluate its power and manoeuvrability, rudder rerouting speed, stopping speed at full tilt, with its maximum forward and reverse speed.'' --><br />
<br />
{{NavalMobility<br />
|SpeedForwardStockAB = 63<br />
|SpeedBackStockAB = 32<br />
|TurnTimeStockAB = 18.64<br />
|TurnSpeedStockAB = 43<br />
<br />
|TurnTimeSpadedAB = 12.67<br />
|TurnSpeedSpadedAB = 40<br />
<br />
|SpeedForwardStockRB = 53<br />
|SpeedBackStockRB = 26<br />
|TurnTimeStockRB = 20.77<br />
|TurnSpeedStockRB = 40<br />
<br />
|TurnTimeSpadedRB = 17.44<br />
|TurnSpeedSpadedRB = 43<br />
}}<br />
<br />
While her top speed is on the slower side compared to other motor torpedo boats, MTB-1(1)'s manoeuvrability is actually rather good. With a tight turning circle and a decent enough top speed, the mobility is suitable enough for most situations, although the lower top speed really hurts her potential for flanking on certain maps.<br />
<br />
MTB-1(1) has a displacement of 22.4 tons. Because of her small size and relatively low displacement, MTB-1(1) can be an unstable firing platform in rough waters.<br />
<br />
=== Modifications and economy ===<br />
{{Specs-Economy}}<br />
<br />
As a reserve vehicle, the following modifications are unlocked for free: Rudder Replacement, Propeller Replacement, Engine Maintenance, Tool Set, Fire Protection System, New Pumps, and Primary Armament Targeting.<br />
<br />
The recommended modification research order is:<br />
# 7.7 mm API belt<br />
# Smokescreen<br />
# Artillery Support<br />
# Dry-Docking<br />
<br />
After that, research the rest of the modifications in whatever order you prefer.<br />
<br />
== Armament ==<br />
{{Specs-Fleet-Armaments}}<br />
=== Primary armament ===<br />
{{Specs-Fleet-Primary}}<br />
<!-- ''Provide information about the characteristics of the primary armament. Evaluate their efficacy in battle based on their reload speed, ballistics and the capacity of their shells. Add a link to the main article about the weapon: <code><nowiki>{{main|Weapon name (calibre)}}</nowiki></code>. Broadly describe the ammunition available for the primary armament, and provide recommendations on how to use it and which ammunition to choose.'' --><br />
{{main|Lewis 1916 (7.72 mm)}}<br />
<br />
The primary armament consists of eight 7.72 mm Lewis 1916 machine guns in two quadruple mounts, one on the bow and one on the stern. There are 3,880 rounds of ammunition available for each mount, 970 rounds per gun, for a total of 7,760 rounds. Stock, the mounts can traverse horizontally and vertically at a rate of 64°/s; with the "Primary Armament Targeting" modification installed, this is increased to 75°/s. Each gun has a magazine capacity of 97 rounds and a cyclic rate of fire of 551 rounds/min. With a stock crew, the guns can be reloaded in 18.2 seconds; with an aced crew, they can be reloaded in 14 seconds. The 7.72 mm Lewis 1916 machine gun has an absolute maximum range of about 1.7 km against surface targets.<br />
<br />
The 7.72 mm Lewis 1916 machine guns, like other low-calibre machine guns, each individually have very poor damage outputs. With their relatively large magazine size and eight of them in total, though, MTB-1(1) is able to destroy most opponents without needing to reload, assuming that most of the shots land. This, however, comes at the cost of an incredibly long reload, the longest of any reserve vessel and one of the longest of any coastal fleet vessel in general. Because of this, it's best to always fire off any remaining ammunition after engagements to begin reloading in safety and to ensure full magazines at the start of the next engagement.<br />
<br />
{{Notice|Turrets are named sequentially, clockwise, starting at the bow}}<br />
<br />
{| class="wikitable" style="text-align:center" width="50%"<br />
! colspan="4" | Primary armament guidance<br />
|-<br />
! colspan="2" rowspan="1" | No.1 Turret (fore)<br />
! colspan="2" rowspan="1" | No.2 Turret (aft)<br />
|-<br />
! Horizontal !! Vertical !! Horizontal !! Vertical<br />
|-<br />
| ±180° || -5°/+43° || ±160° || -5°/+43°<br />
|-<br />
|}<br />
<br />
The front gun mount is able to fire in all directions except in a ~34° arc directly behind it. Because of the depth charge racks, the aft gun mount is unable to target any close-range targets in a ~42° arc on each side facing forwards, even if the depth charge racks are empty. The rear gun mount also cannot fire in a ~30° arc directly behind either. Only the front gun mount is able to fully rotate 360°.<br />
<br />
There are three ammunition types available:<br />
<br />
* Universal: {{Annotation|AP|Armour-piercing}}{{-}}{{Annotation|T|Tracer}}{{-}}{{Annotation|AP|Armour-piercing}}{{-}}{{Annotation|T|Tracer}}<br />
<br />
* 7.7 mm AP belt: {{Annotation|AP|Armour-piercing}}{{-}}{{Annotation|AP|Armour-piercing}}{{-}}{{Annotation|AP|Armour-piercing}}{{-}}{{Annotation|T|Tracer}}<br />
<br />
* 7.7 mm API belt: {{Annotation|IT|Incendiary tracer}}{{-}}{{Annotation|IT|Incendiary tracer}}{{-}}{{Annotation|IT|Incendiary tracer}}{{-}}{{Annotation|AP|Armour-piercing}}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="7" | Penetration statistics (belt)<br />
|-<br />
! rowspan="2" data-sort-type="text" | Belt<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| Universal || 10 || 9 || 8 || 7 || 6 || 5<br />
|-<br />
| 7.7 mm AP belt || 10 || 9 || 8 || 7 || 6 || 5<br />
|-<br />
| 7.7 mm API belt || 10 || 9 || 7 || 6 || 5 || 5<br />
|-<br />
|}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="8" | Penetration statistics (shell)<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! rowspan="2" | Type of<br>warhead<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| AP || {{Annotation|AP|Armour-piercing}} || 10 || 9 || 8 || 7 || 6 || 5<br />
|-<br />
| T || {{Annotation|T|Tracer}} || 9 || 8 || 7 || 6 || 5 || 4<br />
|-<br />
| IT || {{Annotation|IT|Incendiary tracer}} || 10 || 9 || 7 || 6 || 5 || 5<br />
|-<br />
|}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="10" | Shell details<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! rowspan="2" | Type of<br>warhead<br />
! rowspan="2" | Velocity<br>(m/s)<br />
! rowspan="2" | Projectile<br>Mass (kg)<br />
! rowspan="2" | Fuse delay<br>(m)<br />
! rowspan="2" | Fuse sensitivity<br>(mm)<br />
! rowspan="2" | Explosive Mass<br>(TNT equivalent) (g)<br />
! colspan="3" | Ricochet<br />
|-<br />
! 0% !! 50% !! 100%<br />
|-<br />
| AP || {{Annotation|AP|Armour-piercing}} || 853 || 0.01 || N/A || N/A || N/A || 47° || 56° || 65°<br />
|-<br />
| T || {{Annotation|T|Tracer}} || 835 || 0.01 || N/A || N/A || N/A || 47° || 56° || 65°<br />
|-<br />
| IT || {{Annotation|IT|Incendiary tracer}} || 920 || 0.01 || N/A || N/A || N/A || 47° || 56° || 65°<br />
|-<br />
|}<br />
<br />
While the armour-piercing round and the the incendiary tracer round deal about the same amount of the damage, the standard tracer round deals incredibly little damage to both surface targets and aircraft. Because of this, the AP belt is a strict upgrade from the default belt. Compared to the AP rounds, the IT rounds also have a much higher muzzle velocity. Altogether, this makes the API belt the best overall, due both to its lack of standard tracer rounds and better balistic properties.<br />
<br />
=== Additional armament ===<br />
{{Specs-Fleet-Additional}}<br />
<!-- ''Describe the available additional armaments of the ship: depth charges, mines, torpedoes. Talk about their positions, available ammunition and launch features such as dead zones of torpedoes. If there is no additional armament, remove this section.'' --><br />
{{main|18 inch Mark XII (450 mm)|Mk.VII depth charge}}<br />
<br />
MTB-1(1) can be outfitted with the following:<br />
<br />
* Without load<br />
* 2 x Mk.XII torpedo<br />
* 4 x Mk.VII depth charge<br />
* 2 x Mk.XII torpedo, 4 x Mk.VII depth charge<br />
<br />
'''Torpedoes'''<br />
<br />
MTB-1(1) can carry two 18 inch Mark XII torpedoes. These are carried internally in the aft of the boat and are launched through the transom tail first, i.e. facing forwards.<br />
<br />
{| class="wikitable" style="text-align:center" width="100%"<br />
! colspan="9" | Torpedo characteristics<br />
|-<br />
! Torpedo Mode !! Mass (kg) !! Maximum speed in water (km/h) !! Travel distance (km) !! Depth stroke (m) !! Arming distance (m) !! Explosive type !! Explosive mass (kg) !! TNT equivalent (kg)<br />
|-<br />
| {{Annotation|No|'Torpedo Mode' modification uninstalled}} || 702 || 50 || 3.20 || 1 || 50 || TNT || 176 || 176<br />
|-<br />
| {{Annotation|Yes|'Torpedo Mode' modification installed}} || 702 || 74 || 1.37 || 1 || 50 || TNT || 176 || 176<br />
|}<br />
<br />
The 18-inch Mk.XII is fairly average in terms of maximum speed, though it has a rather short maximum range and small explosive mass compared to other torpedoes. Still, the range is good enough for coastal maps, and a hit with the Mk.XII torpedo is more than enough to destroy any boat. <br />
<br />
The Torpedo Mode modification is available as a rank IV modification. Installing it will give the following changes:<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="2" | Torpedo mode specification changes<br />
|-<br />
! Max distance (m)<br />
! Max speed (m/s)<br />
|-<br />
| -1829|| +7<br />
|-<br />
|}<br />
<br />
Once unlocked, it's best to always keep Torpedo Mode installed. The maximum speed of a torpedo is much more valuable in coastal battles than its maximum range. Coastal fleet maps are also small enough that the decreased range with Torpedo Mode installed isn't much of an issue. Note, though, that the Torpedo Mode modification on MTB-1(1) has the opposite effect compared to most other vessels. Typically, the maximum range is increased at the cost of speed.<br />
<br />
In RB, always set the depth stroke to the minimum 1 m setting. This is because many vessels that MTB-1(1) can face will not have a deep enough draught to fuse the torpedo at a depth stroke setting of 4 m. In AB, depth stroke is automatically set to the most optimal setting.<br />
<br />
When using torpedoes, be aware that unless they are already launched, the torpedoes be shot at and destroyed. Upon being destroyed, there is relatively high chance for them to detonate, instantly destroying the boat. To avoid this, fire the torpedoes early on in battle — as well as after any subsequent reloads in AB — or simply don't take them at all. Torpedoes are a situational weapon, so it's largely down to personal preference whether or not to take them.<br />
<br />
'''Depth Charges'''<br />
<br />
[[File:{{PAGENAME}}_DC_Order.png|thumb|Mk.VII depth charges numbered according to their drop order.]]<br />
<br />
The Mk.VII depth charges are carried behind the bridge in racks, two on each side. They are dropped one at a time in the following order:<br />
<br />
# Port, foremost<br />
# Starboard, foremost<br />
# Port, aftmost<br />
# Starboard, aftmost<br />
<br />
Before spawning, the detonation time delay can be set anywhere between 3 seconds and 10 seconds.<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="7" | Depth charge characteristics<br />
|-<br />
! Mass (kg)<br />
! Explosive type<br />
! Explosive mass (kg)<br />
! TNT equivalent (kg)<br />
! HE armour penetration (mm)<br />
! Armoured vehicle destruction radius (m)<br />
! Fragment dispersion radius (m)<br />
|-<br />
| 196 || TNT || 130 || 130 || 101 || 8 || 122 <br />
|}<br />
<br />
There is almost no practical reason to use depth charges on any naval vessel in the game. Although they usually result in a one-hit kill if used properly, they are extremely situational, requiring the player to close to point-blank ranges to even use them. In almost every case, anytime a depth charge could be used, the guns or torpedoes can be used instead to greater effect. In fact, depth charges tend to actually be a liability in battle, since they essentially act as exposed ammo racks before they're dropped. Like torpedoes, they can be shot at, and if destroyed, they have a chance to detonate, instantly destroying the boat.<br />
<br />
Despite this, some success can be had in dropping them either next to, or in front of, a large, slow target. If dropping them next to the target, remember the depth charge drop order, since it's most likely that only the depth charges dropped on the side closest to the enemy will deal any damage. If dropping in front of the target, rush in from the sides as quickly as possible and drop them all at once directly in front of the target. For both cases, set the depth charge time delay to the minimum 3 seconds, since any higher time delay will only allow the depth charge to sink further away from the target, giving them more time to move out of the way. Again, using depth charges is extremely situational, and they will only be a liability the vast majority of the time, so take them at your own discretion.<br />
<br />
== Usage in battles ==<br />
<!-- ''Describe the technique of using this ship, the characteristics of her use in a team and tips on strategy. Abstain from writing an entire guide – don't try to provide a single point of view, but give the reader food for thought. Talk about the most dangerous opponents for this vehicle and provide recommendations on fighting them. If necessary, note the specifics of playing with this vehicle in various modes (AB, RB, SB).'' --><br />
<br />
[[File:MTB-1_1_series_skin_"MTB-1_'01'".png|thumb|MTB-1(1) with the historical camouflage '''"MTB-1 '01'''', available on the [http://trade.gaijin.net Gaijin Marketplace].]]<br />
<br />
Like any other vessel armed only with low-calibre machine guns, MTB-1(1) is severely limited by her armament. The 7.72 mm Lewis 1916 machine guns have both a poor muzzle velocity and a low projectile mass, giving them a very low absolute maximum range of only about 1.7 km. Their effective range is even less at only about 1-1.25 km, since the poor ballistics of the guns makes it rather difficult to consistently hit moving targets at any further distance. Being able to consistently hit targets is especially important with MTB-1(1) as, although she carries a large number of guns, each individual machine gun has an incredibly low per-hit damage output, leaving the overall damage output less than that of her heavy machine gun or autocannon-armed counterparts. Because of this, along with the range limitation of the guns, MTB-1(1) is best played at close ranges, with engagement distances ideally starting at 1 km or less. At such short ranges, the poor ballistics of the guns aren't nearly as pronounced, making them much easier to aim.<br />
<br />
Make use of MTB-1(1)'s relatively fast top speed and terrain cover to either flank the enemy team or to rush into contested areas around capture points, but avoid long, open areas of the map wherever possible. In those areas, MTB-1(1) will most likely be completely outranged, giving giving the enemy free hits. Once in close range, try to avoid direct engagements with enemies, as MTB-1(1) will most likely lose. Instead, try to flank, supporting the team by picking off small targets distracted by teammates and calling artillery on larger enemies that the guns are are unable to damage.<br />
<br />
Although she can mostly handle one-on-one engagements, MTB-1(1) is particularly poor at dealing with multiple enemies at once. This is because of the low damage output and extremely long reload. At all times, be aware of the how much ammo are left in the guns. Getting caught during a reload will almost always lead to MTB-1(1)'s destruction, so always keep an escape route open, and use smoke to run away if necessary. In general, but especially for guns with long reloads, it's better to be proactive with the reloads. Before the magazines empty, run back to cover, then fire off any remaining ammunition in order to start reloading in safety. A good time to consider doing this with MTB-1(1) is when the magazines about half empty, or when it shows about 750 rounds left between all guns, since with any less ammo, it may be difficult to finish an engagement before needing to reload. However, do be aware that MTB-1(1) can, at most, only carry enough ammunition for 10 reloads. This doesn't tend to be much of an issue in practice because MTB-1(1) doesn't tend to survive long enough for it to become an issue, but it is something to keep in mind.<br />
<br />
As for torpedoes, either launch them down choke points or prioritize larger, slower targets such as sub-chasers that the guns are ineffective against. If targeting a specific enemy, try to launch them as close to the target as possible to allow them the least amount of time to dodge. However, try to only do this on distracted targets and when other enemies aren't around, since exposing MTB-1(1) to enemy fire just to launched the torpedoes is generally not worth the risk. If the situation doesn't present itself, it's better to just mark the target on the map for your teammates, call artillery, then disengage. As mentioned in the previous section, torpedoes are a situational weapon, and taking them at all negatively impacts survivability, so only take them if you prefer the extra utility at the cost of survivability.<br />
<br />
=== Pros and cons ===<br />
<!-- ''Summarise and briefly evaluate the vehicle in terms of its characteristics and combat effectiveness. Mark its pros and cons in the bulleted list. Try not to use more than 6 points for each of the characteristics. Avoid using categorical definitions such as "bad", "good" and the like - use substitutions with softer forms such as "inadequate" and "effective".'' --><br />
<br />
'''Pros:'''<br />
<br />
* Relatively large magazine capacity: can destroy most opponents without needing to reload<br />
* Good manoeuvrability<br />
<br />
'''Cons:'''<br />
<br />
* Only armed with low-calibre guns: very poor damage output and limited effective range<br />
* Very long reload: longest of any reserve and one of the longest among coastal vessels<br />
* Poor survivability<br />
* Relatively weak torpedoes: low explosive mass compared to other similar torpedoes<br />
<br />
== History ==<br />
<!-- ''Describe the history of the creation and combat usage of the ship in more detail than in the introduction. If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the ship and adding a block "/History" (example: <nowiki>https://wiki.warthunder.com/(Ship-name)/History</nowiki>) and add a link to it here using the <code>main</code> template. Be sure to reference text and sources by using <code><nowiki><ref></ref></nowiki></code>, as well as adding them at the end of the article with <code><nowiki><references /></nowiki></code>. This section may also include the ship's dev blog entry (if applicable) and the in-game encyclopedia description (under <code><nowiki>=== In-game description ===</nowiki></code>, also if applicable).'' --><br />
<br />
Though the Royal Navy had operated a small number of coastal boats during the first World War, by the 1930s, these flotillas had long been dissolved and the Royal Navy had yet to construct any more. The first two coastal boats since WWI were ordered on 27th September 1935 by the Royal Navy, the order being given to British Power Boat Company based at Hythe, a town near Southampton. In addition to this initial order, four more were ordered on 19th October 1935. These six boats were completed by November 1936, and, with their commissioning on 27th April 1937, the Royal Navy Coastal Forces was founded. Following this, three more boats were ordered on 7th December 1936 and nine more on 11th January 1938. In total, 18 boats were ordered, all of them being completed by 1939.<br />
<br />
These boats had a standard displacement of 18 tons and had a length of 60 ft. 4 in., a width of 13 ft. 4 in., and a draught of 2 ft. 10 in. at standard displacement. They were powered by three Napier Sea Lion petrol engines, each driving a single shaft, and could reach speeds of around 30-35 knots. Each boat could carry two 18 inch torpedoes which were stored internally on rails above the engines. On the stern were two more rails that could be folded down to the transom, extending the torpedoes' rails outside of the boat. The torpedoes fired facing forwards down the rails, after which the boat that fired them would have to turn to evade their path. In addition to torpedoes, the boats were also armed with a number of depth charges and, depending on the exact boat, up to eight Lewis guns.<br />
<br />
MTB 1, the first of the boats, was redesignated MTB 7 in 1937. Similarly, MTB 7 was redesignated MTB 1 in the same year. In 1938, the former MTB 1, now MTB 7, was redesignated MTB 13. At the same time, MTB 13 was redesignated MTB 7. Finally, later in 1938, the former MTB 1, now MTB 13, was again redesignated MTB 19. Thus, by the start of WWII, the boats were numbered MTBs 1-12 and 14-19 and formed two MTB flotillas: 1st MTB Flotilla, consisting of MTBs 1-6 and 14-19; and 2nd MTB Flotilla, consisting of MTBs 7-12.<br />
<br />
The 1st MTB Flotilla was sent to the Mediterranean at the start of WWII and was based at HMS Vulcan in Malta. They were soon recalled back to England in December 1939 to be based at HMS Beehive, Felixstowe, though MTB 19 was sent to HMS Vernon, Portsmouth. Along the way back, due to bad weather, MTB 6 had to be foundered. After they arrived, the remaining boats continued to operate in the English Channel until they were either lost or replaced. Those lost were MTBs 15, 16, and 17, all of which were mined in 1940.<br />
<br />
The 2nd MTB Flotilla was commissioned in 1938 and assigned to HMS Tamar, Hong Kong. They were all lost during the Battle of Hong Kong in December 1941. MTB 8 was bombed by IJN aircraft and was damaged beyond repair, and MTB 12 was sunk in action by IJN landing craft. The remainder of the 2nd MTB Flotilla was scuttled on 26th December 1941.<br />
<br />
== Media ==<br />
<!-- ''Excellent additions to the article would be video guides, screenshots from the game, and photos.'' --><br />
<br />
;'''Skins'''<br />
<br />
* [https://live.warthunder.com/feed/camouflages/?vehicleCountry=britain&vehicleType=ship&vehicleClass=torpedo_boat&vehicle=uk_mtb_1series Skins and camouflages for the {{PAGENAME}} from live.warthunder.com.]<br />
<br />
;'''Images'''<br />
<gallery mode="packed" heights="150"><br />
Mtb-1 1 series.png||MTB-1(1) in the hangar<br />
MTB-1 damaged-1.jpg||MTB-1(1) defends a capture point, despite numerous damages.<br />
</gallery><br />
<br />
== See also ==<br />
<!-- ''Links to articles on the War Thunder Wiki that you think will be useful for the reader, for example:''<br />
* ''reference to the series of the ship;''<br />
* ''links to approximate analogues of other nations and research trees.'' --><br />
;Vehicles of the same class<br />
* {{Specs-Link|uk_mtb_2series}}<br />
* [[MTB-1 (Family)]]<br />
<br />
;Similar vehicles<br />
* {{Specs-Link|uk_fairmile_a_ml100}}<br />
* {{Specs-Link|uk_mtb_vosper_1series}}<br />
<br />
== External links ==<br />
<!-- ''Paste links to sources and external resources, such as:''<br />
* ''topic on the official game forum;''<br />
* ''other literature.'' --><br />
<br />
* [https://www.unithistories.com/units_british/RN_MTBs.html#MTB_Boats <nowiki>[Unit Histories]</nowiki> Royal Navy Coastal Forces 1940-1945]<br />
* [http://www.naval-history.net/WW2BritishLosses3Coastal.htm <nowiki>[naval-history.net]</nowiki> British vessels lost at sea in World War 2 - MGB, MTB, SGB, ML, etc] - originally published in ''British Vessels Lost at Sea, 1935-45'', His Majesty's Stationary Office, 1947<br />
* [http://www.mwadui.com/HongKong/Coastal-Forces-Hong-Kong.htm <nowiki>[mwadui.com]</nowiki> Royal Navy Coastal Forces - Hong Kong]<br />
* [http://www.coastal-forces.org.uk/history.html <nowiki>[Coastal Forces Heritage Trust]</nowiki> Coastal Forces of World War II - History]<br />
* [https://www.yalumba.co.uk/Framesets/British%20Power%20Boat%20Co.htm <nowiki>[yalumba.co.uk]</nowiki> British Power Boat Co Page 1]<br />
* [https://www.yalumba.co.uk/Framesets/British%20Power%20Boat%20Co%20-%20page%205,%20MTBs.html <nowiki>[yalumba.co.uk]</nowiki> British Power Boat Co Page 5]<br />
* [[wikipedia:Coastal_Forces_of_the_Royal_Navy|[Wikipedia] Coastal Forces of the Royal Navy]]<br />
<br />
{{Britain boats}}</div>U27474208https://old-wiki.warthunder.com/index.php?title=Fairmile_A_(ML100)&diff=107842Fairmile A (ML100)2021-07-29T01:45:36Z<p>U27474208: Wording</p>
<hr />
<div>{{Specs-Card<br />
|code=uk_fairmile_a_ml100<br />
|images={{Specs-Card-Image|GarageImage_{{PAGENAME}}.jpg}}<br />
}}<br />
<br />
== Description ==<br />
<!-- ''In the first part of the description, cover the history of the ship's creation and military application. In the second part, tell the reader about using this ship in the game. Add a screenshot: if a beginner player has a hard time remembering vehicles by name, a picture will help them identify the ship in question.'' --><br />
The '''{{Specs|name}}''' is a rank {{Specs|rank}} British motor gun boat {{Battle-rating}}. It was introduced in [[Update 1.83 "Masters of the Sea"]] as part of the British fleet closed beta test. With the split of the naval tech trees in [[Update "New Power"]], {{PAGENAME}} was moved to the coastal fleet tech tree.<br />
<br />
== General info ==<br />
=== Survivability and armour ===<br />
{{Specs-Fleet-Armour}}<br />
<!-- ''Talk about the vehicle's armour. Note the most well-defended and most vulnerable zones, e.g. the ammo magazine. Evaluate the composition of components and assemblies responsible for movement and manoeuvrability. Evaluate the survivability of the primary and secondary armaments separately. Don't forget to mention the size of the crew, which plays an important role in fleet mechanics. Save tips on preserving survivability for the "Usage in battles" section. If necessary, use a graphical template to show the most well-protected or most vulnerable points in the armour.'' --><br />
<br />
[[File:{{PAGENAME}}_Internals.png|thumb|{{PAGENAME}} internals (starboard). The aft ammunition storage is partially obscured by the fuel tanks here.]]<br />
<br />
Fairmile A (ML100) has the following armour layout:<br />
<br />
* Hull: 24 mm, wood<br />
* Superstructure: 2 mm, steel<br />
<br />
Any gun in the game will easily be able to penetrate the hull and superstructure at any practical range.<br />
<br />
The hull is split into four sections. The first compartment starts at the bow and ends in the middle of the bridge, just in front of the pumps; the second ends just between the radio station and the engines, around the funnel; the third ends in front of the aft gun mount; and the fourth ends at the stern. <br />
<br />
Fairmile A (ML100) can be hull-broken by any round with a large enough diameter and explosive mass. In general, this is limited to HE rounds greater with a diameter greater than or equal to 4 inches (102 mm) with an explosive mass greater than 1.5 kg. At Fairmile A (ML100)'s own battle rating, there is only one gun capable of hull-breaking her:<br />
<br />
* the [[8cwt QF Mk I (114 mm)|114 mm 8cwt QF Mk I]], found on {{Specs-Link|uk_dark_class}}.<br />
<br />
There are two ammunition storages: the first, holding the ammunition for the secondary armament, is located in the bow below the fore twin 7.72 mm Lewis 1916 machine gun mount. The other ammunition storage, holding the ammunition for the primary armament, is located in the stern on the port side, below and behind the aft 3 pdr QF Hotchkiss cannon. Both ammunition storages are located just above the waterline and destroying either will instantly destroy the boat.<br />
<br />
Fairmile A (ML100) has a crew complement of 14. With a stock crew, it is knocked out when 9 crew are lost; with an aced crew, this is increased to 10. Overall, the survivability is average.<br />
<br />
=== Mobility ===<br />
{{Specs-Fleet-Mobility}}<br />
<!-- ''Write about the ship's mobility. Evaluate its power and manoeuvrability, rudder rerouting speed, stopping speed at full tilt, with its maximum forward and reverse speed.'' --><br />
<br />
{{NavalMobility<br />
|SpeedForwardStockAB = 46<br />
|SpeedBackStockAB = 14<br />
|TurnTimeStockAB = 40.88<br />
|TurnSpeedStockAB = 34<br />
<br />
|TurnTimeSpadedAB = 26.99<br />
|TurnSpeedSpadedAB = 33<br />
<br />
|SpeedForwardStockRB = 40<br />
|SpeedBackStockRB = 12<br />
|TurnTimeStockRB = 47.12<br />
|TurnSpeedStockRB = 34<br />
<br />
|TurnTimeSpadedRB = 37.33<br />
|TurnSpeedSpadedRB = 34<br />
}}<br />
<br />
Fairmile A (ML100) has a displacement of 57 tons.<br />
<br />
=== Modifications and economy ===<br />
{{Specs-Economy}}<br />
<br />
The recommended modification research order is:<br />
<br />
# Tool Set<br />
# Fire Protection System<br />
# 7.7 mm API belt<br />
# Smokescreen<br />
# Propeller Replacement<br />
# Improved Rangefinder<br />
# Artillery Support<br />
<br />
After that, prioritize researching the rest of the seakeeping modifications, followed by the remaining modifications in whatever order you prefer.<br />
<br />
== Armament ==<br />
{{Specs-Fleet-Armaments}}<br />
=== Primary armament ===<br />
{{Specs-Fleet-Primary}}<br />
<!-- ''Provide information about the characteristics of the primary armament. Evaluate their efficacy in battle based on their reload speed, ballistics and the capacity of their shells. Add a link to the main article about the weapon: <code><nowiki>{{main|Weapon name (calibre)}}</nowiki></code>. Broadly describe the ammunition available for the primary armament, and provide recommendations on how to use it and which ammunition to choose.'' --><br />
{{main|3 pdr QF Hotchkiss (47 mm)}}<br />
<br />
The primary armament consists of a single 47 mm 3 pdr QF Hotchkiss cannon mounted aft, with a maximum of 300 rounds of ammunition. Stock, the mount can traverse horizontally at a rate of 34°/s and vertically at a rate of 21°/s; with the "Primary Armament Targeting" modification installed, this is increased to 40°/s and 25°/s respectively. The gun is single-shot with a nominal rate of fire of 30 rounds/min. With a stock crew, it can be reloaded in 2.6 seconds; with an aced crew, it can be reloaded in 2 seconds.<br />
<br />
{| class="wikitable" style="text-align:center" width="25%"<br />
! colspan="2" | Primary armament guidance<br />
|-<br />
! Horizontal !! Vertical<br />
|-<br />
| ±180° || -5°/+25°<br />
|-<br />
|}<br />
<br />
There is only one ammunition type available:<br />
<br />
* 3 pdr Mk.2 HE<br />
<br />
{| class="wikitable" style="text-align:center" width="100%"<br />
! colspan="8" | Penetration statistics<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! rowspan="2" | Type of<br>warhead<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 100 m !! 1,000 m !! 2,000 m !! 3,000 m !! 4,000 m !! 5,000 m<br />
|-<br />
| 3 pdr Mk.2 HE || {{Annotation|HE|High-explosive}} || 4 || 4 || 4 || 4 || 4 || 4<br />
|-<br />
|}<br />
{| class="wikitable" style="text-align:center" width="100%"<br />
! colspan="10" | Shell details<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! rowspan="2" | Type of<br>warhead<br />
! rowspan="2" | Velocity<br>(m/s)<br />
! rowspan="2" | Projectile<br>Mass (kg)<br />
! rowspan="2" | Fuse delay<br>(m)<br />
! rowspan="2" | Fuse sensitivity<br>(mm)<br />
! rowspan="2" | Explosive Mass<br>(TNT equivalent) (g)<br />
! colspan="3" | Ricochet<br />
|-<br />
! 0% !! 50% !! 100%<br />
|-<br />
| 3 pdr Mk.2 HE || {{Annotation|HE|High-explosive}} || 571 || 1.5 || 0 || 0.1 || 132 || 79° || 80° || 81°<br />
|-<br />
|}<br />
<br />
=== Secondary armament ===<br />
{{Specs-Fleet-Secondary}}<br />
<!-- ''Some ships are fitted with weapons of various calibres. Secondary armaments are defined as weapons chosen with the control <code>Select secondary weapon</code>. Evaluate the secondary armaments and give advice on how to use them. Describe the ammunition available for the secondary armament. Provide recommendations on how to use them and which ammunition to choose. Remember that any anti-air armament, even heavy calibre weapons, belong in the next section. If there is no secondary armament, remove this section.'' --><br />
{{main|Lewis 1916 (7.72 mm)}}<br />
<br />
The secondary armament consists of six 7.72 mm Lewis 1916 machineguns in three twin mounts, one mount on the bow and the other two amidships. There are 3,880 rounds of ammunition available for each mount, 1,940 rounds per gun, for a total of 11,640 rounds. Stock, the mounts can traverse horizontally at a rate of 64°/s and vertically at a rate of 55°/s; with the "Auxiliary Armament Targeting" modification installed, this is increased to 75°/s and 65°/s respectively. Each gun has a magazine capacity of 97 rounds and a cyclic rate of fire of around 550 rounds/min. With a stock crew, the guns can be reloaded in 18.2 seconds; with an aced crew, they can be reloaded in 14 seconds.<br />
<br />
{{Notice|Turrets are named sequentially, clockwise, starting at the bow}}<br />
<br />
{| class="wikitable" style="text-align:center" width="75%"<br />
! colspan="6" | Secondary armament guidance<br />
|-<br />
! colspan="2" rowspan="1" | No.1 Turret (fore)<br />
! colspan="2" rowspan="1" | No.2 Turret (starboard)<br />
! colspan="2" rowspan="1" | No.3 Turret (port)<br />
|-<br />
! Horizontal !! Vertical !! Horizontal !! Vertical !! Horizontal !! Vertical<br />
|-<br />
| ±180° || -5°/+70° || ±80° || -5°/+70° || ±80° || -5°/+70°<br />
|-<br />
|}<br />
<br />
There are three ammunition types available:<br />
<br />
* Universal: {{Annotation|AP|Armour-piercing}}{{-}}{{Annotation|T|Tracer}}{{-}}{{Annotation|AP|Armour-piercing}}{{-}}{{Annotation|T|Tracer}}<br />
<br />
* 7.7 mm AP belt: {{Annotation|AP|Armour-piercing}}{{-}}{{Annotation|AP|Armour-piercing}}{{-}}{{Annotation|AP|Armour-piercing}}{{-}}{{Annotation|T|Tracer}}<br />
<br />
* 7.7 mm API belt: {{Annotation|IT|Incendiary tracer}}{{-}}{{Annotation|IT|Incendiary tracer}}{{-}}{{Annotation|IT|Incendiary tracer}}{{-}}{{Annotation|AP|Armour-piercing}}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="7" | Penetration statistics (belt)<br />
|-<br />
! rowspan="2" data-sort-type="text" | Belt<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| Universal || 10 || 9 || 8 || 7 || 6 || 5<br />
|-<br />
| 7.7 mm AP belt || 10 || 9 || 8 || 7 || 6 || 5<br />
|-<br />
| 7.7 mm API belt || 10 || 9 || 8 || 7 || 6 || 5<br />
|-<br />
|}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="8" | Penetration statistics (shell)<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! rowspan="2" | Type of<br>warhead<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| AP || {{Annotation|AP|Armour-piercing}} || 10 || 9 || 8 || 7 || 6 || 5<br />
|-<br />
| T || {{Annotation|T|Tracer}} || 9 || 8 || 7 || 6 || 5 || 4<br />
|-<br />
| IT || {{Annotation|IT|Incendiary tracer}} || 10 || 9 || 7 || 6 || 5 || 5<br />
|-<br />
|}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="10" | Shell details<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! rowspan="2" | Type of<br>warhead<br />
! rowspan="2" | Velocity<br>(m/s)<br />
! rowspan="2" | Projectile<br>Mass (kg)<br />
! rowspan="2" | Fuse delay<br>(m)<br />
! rowspan="2" | Fuse sensitivity<br>(mm)<br />
! rowspan="2" | Explosive Mass<br>(TNT equivalent) (g)<br />
! colspan="3" | Ricochet<br />
|-<br />
! 0% !! 50% !! 100%<br />
|-<br />
| AP || {{Annotation|AP|Armour-piercing}} || 853 || 0.01 || N/A || N/A || N/A || 47° || 56° || 65°<br />
|-<br />
| T || {{Annotation|T|Tracer}} || 835 || 0.01 || N/A || N/A || N/A || 47° || 56° || 65°<br />
|-<br />
| IT || {{Annotation|IT|Incendiary tracer}} || 920 || 0.01 || N/A || N/A || N/A || 47° || 56° || 65°<br />
|-<br />
|}<br />
<br />
While the armour-piercing round and the the incendiary tracer round deal about the same amount of the damage, the standard tracer round deals incredibly little damage to both surface targets and aircraft. Because of this, the AP belt is a strict upgrade from the default belt. Compared to the AP rounds, the IT rounds also have a much higher muzzle velocity. Altogether, this makes the API belt the best overall, due both to its lack of standard tracer rounds and better balistic properties.<br />
<br />
=== Additional armament ===<br />
{{Specs-Fleet-Additional}}<br />
<!-- ''Describe the available additional armaments of the ship: depth charges, mines, torpedoes. Talk about their positions, available ammunition and launch features such as dead zones of torpedoes. If there is no additional armament, remove this section.'' --><br />
{{main|Mk.VII depth charge|Type M Mark I mine}}<br />
<br />
{{PAGENAME}} has three possible loadouts:<br />
<br />
# 12x Mk.VII depth charge<br />
# 5x Type M Mk I mines<br />
# Without load<br />
<br />
'''Depth Charges'''<br />
<br />
[[File:{{PAGENAME}}_DC_Order.png|thumb|Mk.VII depth charges numbered according to their drop order.]]<br />
<br />
The Mk.VII depth charges are carried in racks amidships between the funnel and the aft gun mount, six on each side. They are dropped in the following order: foremost to aftmost and alternating port to starboard, starting with the foremost depth charge on the port side.<br />
<br />
Before spawning, the detonation time delay can be set anywhere between 3 seconds and 10 seconds.<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="7" | Depth charge characteristics<br />
|-<br />
! Mass (kg)<br />
! Explosive type<br />
! Explosive mass (kg)<br />
! TNT equivalent (kg)<br />
! HE armour penetration (mm)<br />
! Armoured vehicle destruction radius (m)<br />
! Fragment dispersion radius (m)<br />
|-<br />
| 196 || TNT || 130 || 130 || 101 || 8 || 122 <br />
|}<br />
<br />
There is almost no practical reason to use depth charges on any naval vessel in the game. Although they usually result in a one-hit kill if used properly, they are extremely situational, requiring the player to close to point-blank ranges to even use them. In almost every case, anytime a depth charge could be used, the guns or torpedoes can be used instead to greater effect. In fact, depth charges tend to actually be a liability in battle, since they essentially act as exposed ammo racks before they're dropped. They can be shot at, and if destroyed, they have a chance to detonate, instantly destroying the boat.<br />
<br />
Despite this, some success can be had in dropping them either next to, or in front of a large, slow target. If dropping them next to the target, remember the depth charge drop order, since it's most likely that only the depth charges dropped on the side closest to the enemy will deal any damage. If dropping in front of the target, rush in from the sides as quickly as possible and drop them all at once directly in front of the target. For both cases, set the depth charge time delay to the minimum 3 seconds, since any higher time delay will only allow the depth charge to sink further away from the target, giving them more time to move out of the way. Again, using depth charges is extremely situational, and they will only be a liability the vast majority of the time, so take them at your own discretion.<br />
<br />
'''Mines'''<br />
<br />
[[File:{{PAGENAME}}_Mine_Order.png|thumb|Type M Mk I mines numbered according to their drop order.]]<br />
<br />
The Type M Mk I mines are carried one on the stern and four amidships between the funnel and the aft gun mount, two on each side. They are dropped in the following order:<br />
<br />
# Stern<br />
# Port, foremost<br />
# Port, aftmost<br />
# Starboard, foremost<br />
# Starboard, aftmost<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="4" | Mine characteristics<br />
|-<br />
! Mass (kg)<br />
! Explosive type<br />
! Explosive mass (kg)<br />
! TNT equivalent (kg)<br />
|-<br />
| 600 || TNT || 227 || 227<br />
|}<br />
<br />
Like depth charges, naval mines are situational weapons that act like exposed ammunition racks if not dropped. However, because they do not automatically detonate, they are much more useful. With mines, Fairmile A (ML100) can play a utility role by using the mines to cut off narrow passageways and block capture points, then returning back to a friendly capture points to reload before repeating the process. This playstyle is still very situational, though, as it requires misplay on the enemy's part. Mines have a marker in all gamemodes an enemy players will receive a warning when too close to one, so most players will destroy the mines with gunfire or will simply sail around them. Additionally, mines will also despawn after some period of time, so complete coverage of the entire map is not possible. This playstyle also forces Fairmile A (ML100) to the front lines, which is undesirable due to her poor gun armament.<br />
<br />
Alternatively, mines can also be used in a more proactive role, essentially like a better depth charge as described above, since they have no detonation time delay and have a much larger explosive charge. If using them like this, remember the drop order; it is not the same as the depth charge drop order. All said, mines are still only situationally useful, so take them based on personal preference.<br />
<br />
== Usage in battles ==<br />
<!-- ''Describe the technique of using this ship, the characteristics of her use in a team and tips on strategy. Abstain from writing an entire guide – don't try to provide a single point of view, but give the reader food for thought. Talk about the most dangerous opponents for this vehicle and provide recommendations on fighting them. If necessary, note the specifics of playing with this vehicle in various modes (AB, RB, SB).'' --><br />
<br />
Fairmile A (ML100)'s primary armament — a single 3 pdr QF Hotchkiss cannon — is rather poor. It's a single-shot cannon and, while it is fairly average compared to similar weapons, all single-shot cannons at this calibre have incredibly poor damage output and will be outperformed by almost any automatic weapon. The gun's accuracy also is unreliable, and, combined with the low muzzle velocity, hitting moving targets beyond about 1.5 km can be difficult. Additionally, the gun is mounted on the stern which only further reduces its versatility. Unfortunately, the secondary armament doesn't fare much better. Because of their arrangement, only two of the four twin mounts can be brought to bear at once. This essentially limits Fairmile A (ML100) to only half that of {{Specs-Link|uk_mtb_1series}}, whose armament wasn't very outstanding to begin with. Like the 3 pdr QF Hotchkiss, the 7.72 mm Lewis 1916 machine guns are themselves plagued by poor damage output and a low maximum range. Even so, with only four of them on target, their damage output actually ends up being better than the 3 pdr cannon, so primarily use the machine guns and only switch to the cannon if they get knocked out.<br />
<br />
Because of the bad damage output, Fairmile A (ML100) will feel much less survivable compared to other similar vessels, despite actually having a larger crew. Ironically, the greatest determining factor of a vessel's survivability is actually its firepower rather than any direct defensive quality. Fairmile A (ML100) is simply unable to destroy enemies as quickly as others can and will thus be subject to enemy fire for longer periods of time. Because of this, it is especially important to maximize damage output when playing Fairmile A (ML100). Only fire when you know the shots will land and prioritize disabling enemy weaponry. Additionally, the reloads are quite long, so be proactive with the reloads by firing off any remaining ammunition after engagements.<br />
<br />
Like MTB-1 1 series or anything else armed with low-calibre machine guns, Fairmile A (ML100) is best played at close ranges to negate the guns' range disadvantage. Unlike those though, Fairmile A (ML100) lacks the firepower necessary to stay on the front line, so try to stay on the sides and make use of cover as much as possible. From there, play a supporting role by ambushing enemies distracted by your teammates. Whenever possible, only fire at enemies you know you can take out to avoid drawing any unnecessary attention to yourself. For example, any vessels with armour whatsoever will be practically immune to both the machine guns and the cannon, so if you come up against such opponents, as long as they don't notice you, it's best to just mark them on the map for your team, call artillery, and then simply let them pass.<br />
<br />
=== Pros and cons ===<br />
<!-- ''Summarise and briefly evaluate the vehicle in terms of its characteristics and combat effectiveness. Mark its pros and cons in the bulleted list. Try not to use more than 6 points for each of the characteristics. Avoid using categorical definitions such as "bad", "good" and the like - use substitutions with softer forms such as "inadequate" and "effective".'' --><br />
<br />
'''Pros:'''<br />
<br />
* Ability to carry mines<br />
<br />
'''Cons:'''<br />
<br />
* Very weak armament: both primary and secondary guns have low damage outputs<br />
* Primary armament has poor accuracy<br />
* Only 4 secondary guns can be brought to bear at once<br />
* Poor survivability<br />
* Below-average top speed and manoeuvrability<br />
<br />
== History ==<br />
<!-- ''Describe the history of the creation and combat usage of the ship in more detail than in the introduction. If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the ship and adding a block "/History" (example: <nowiki>https://wiki.warthunder.com/(Ship-name)/History</nowiki>) and add a link to it here using the <code>main</code> template. Be sure to reference text and sources by using <code><nowiki><ref></ref></nowiki></code>, as well as adding them at the end of the article with <code><nowiki><references /></nowiki></code>. This section may also include the ship's dev blog entry (if applicable) and the in-game encyclopedia description (under <code><nowiki>=== In-game description ===</nowiki></code>, also if applicable).'' --><br />
<br />
In early 1939, Noel Macklin, a British industrialist, first became aware of the Royal Navy's lack of anti-submarine craft through an article by Vice-Admiral Cecil Vivian Usborne. Realizing the growing danger of German U-boats, and because the Royal Navy was already stretched thin as it was, Usborne advised the Admiralty to adopt a vast fleet of anti-submarine boats to counter the threat. This, however, was largely dismissed by the Admiralty, and in response, Macklin devised his own plan to manufacture the boats. Under his plan, prefabricated parts, built as near to completion as possible, would be sent in kit form ready for final assembly and fitting to the many minor boatbuilding companies throughout the country. This would allow parts and materials to be sourced from companies with no boatbuilding experience and assembled by unskilled labour at unutilized boatyards. Under this decentralized system, the boats could be manufactured quicker and cheaper than had they been manufactured at a single yard, all the while without straining major boatbuilding companies — such as Vospers, British Power Boat Co., White, or Thornycroft — which were all vital in producing specialized, high-speed MTBs and MGBs. Macklin met with Usborne in May 1939 to discuss his idea, and together, they immediately began assembling a team of naval engineers and designers, founding the Fairmile Marine Company. Fairmile quickly produced a wooden motor launch design and proposed the idea to the Admiralty. Ultimately, though, the Admiralty declined to make an order. Nevertheless, convinced in the idea, Fairmile proceeded to produce a prototype as a private venture.<br />
<br />
The prototype was ordered from Woodnutt & Co. at St Helens, Isle of Wight, on 27th July 1939 and was laid down on 29th October 1939. It had a hard chine hull and had a length overall of 110 ft, a beam of 17 ft 5 in, a draught of 4 ft 6 in, and a displacement of around 57 tons. It was powered by three Hall-Scott Defender petrol engines, each producing 600 bhp each, allowing it to achieve a top speed of 25 knots. At this time, with the prospect of war approaching ever closer, the Admiralty had no choice but to acknowledge the serious submarine threat and reconsidered Macklin's proposal. While the prototype was still under construction, the Admiralty purchased it in the summer of 1939. This order was followed by another on 22nd September 1939 for an additional 24 boats, although this was later revised to 11 Fairmile designs — the Fairmile A type — and 13 boats of a new Admiralty design — the Fairmile B type. The twelve Fairmile A motor launches were built by ten different companies and were all completed between May and June 1940, all twelve entering service shortly thereafter as MLs 100-111.<br />
<br />
Interestingly, the Fairmile A types were ordered by the Admiralty without a specified armament. As such, the decks of the boats were not built to take heavy mounting equipment. As a stopgap measure, it was decided that they should be armed with a single aft QF 3-pdr Hotchkiss cannon and several twin Lewis gun pintle mounts, with one on the bow and a pair of mounts amidships. For hunting U-boats, the boats were given ASDIC equipment and depth charge racks, one on each side, capable of carrying up to six depth charges each. Early into service, the boats also received a Holman projector which was mounted amidships. In their first months at war, the Fairmile A types hunted U-boats and protected convoys in British coastal waters.<br />
<br />
Throughout their service, though, the Fairmile A types were plagued by their handling issues and short operational range. By 1941, with the superior Fairmile B type motor launches already in service, any surviving Fairmile A types were converted into minelayers, their depth charge racks replaced with mine racks capable of carrying either six bottom mines or nine moored mines. The 3-pdr Hotchkiss was relocated to the bow with twin 0.5 in Vickers machinegun Mark IV mount added in its place. As minelayers, their funnels were also removed, exhaust rerouted out through the sides instead. In 1943, the Fairmile A types received an upgrade in the form of a single 20 mm Oerlikon cannon in place of the removed funnel and an aft twin 20 mm Oerlikon Mark IX mount. By 1945, any surviving Fairmile A types were converted once again, this time into anti-submarine escorts. As part of this conversion, they received depth charge racks, a Y-gun depth charge thrower, Type 291 radar, and two 2-inch rocket flare launchers. After the end of the war, the surviving Fairmile A types were put into reserve and were all eventually sold between 1947 and 1948.<br />
<br />
As the prototype, ML-100 was the first of the Fairmile A types to be built. She was ordered from Woodnutt & Co. at St Helens on 27th July 1939, laid down on 29th October 1939, and completed on 19th May 1940. From 1940 to 1941, ML-100 was based at HMS Midge, Great Yarmouth and performed anti-submarine escort duties around Grisby. In either late 1941 or early 1942, ML-100 was converted for minelaying operations and was transferred to the 51st ML Flotilla based at HMS Beehive, Felixstowe. She was commanded by the following:<br />
<br />
* T/Lt. F.E.R. Merritt, RNZNVR: October 1942 to December 1943<br />
* T/Lt. G.A. Wright, RCNVR: February 1944 to April 1944<br />
* T/S.Lt. J.E. Branch, RNVR: June 1944 to October 1944<br />
* T/Lt. E.C. Mercer, RNVR: March 1945 to July 1945<br />
<br />
ML-100 survived the war and was sold in October 1947.<br />
<br />
== Media ==<br />
<!-- ''Excellent additions to the article would be video guides, screenshots from the game, and photos.'' --><br />
<br />
;'''Skins'''<br />
<br />
* [https://live.warthunder.com/feed/camouflages/?vehicleCountry=britain&vehicleType=ship&vehicleClass=gun_boat&vehicle=uk_fairmile_a_ml100 Skins and camouflages for the {{PAGENAME}} from live.warthunder.com.]<br />
<br />
== See also ==<br />
<!-- ''Links to articles on the War Thunder Wiki that you think will be useful for the reader, for example:''<br />
* ''reference to the series of the ship;''<br />
* ''links to approximate analogues of other nations and research trees.'' --><br />
<br />
* {{Specs-Link|uk_fairmile_b_ml345}}<br />
* {{Specs-Link|uk_mtb_1series}}<br />
* {{Specs-Link|uk_70ft_mgb}}<br />
<br />
== External links ==<br />
<!-- ''Paste links to sources and external resources, such as:''<br />
* ''topic on the official game forum;''<br />
* ''encyclopedia page on the ship;''<br />
* ''other literature.'' --><br />
<br />
* [http://cfv.org.uk/research/boat/database <nowiki>[Coastal Forces Veterans]</nowiki> Boat Database]<br />
* [https://www.unithistories.com/units_british/RN_CoastalForces.html#ML%20Boats <nowiki>[Unit Histories]</nowiki> Royal Navy Coastal Forces 1940-1945]<br />
* [http://www.naval-history.net/WW2BritishLosses3Coastal.htm <nowiki>[naval-history.net]</nowiki> British vessels lost at sea in World War 2 - MGB, MTB, SGB, ML, etc] - originally published in ''British Vessels Lost at Sea, 1935-45'', His Majesty's Stationary Office, 1947<br />
<br />
===Bibliography===<br />
<br />
* Gaumont British News. (Producer). & White, W. B. (Director). (1941). ''THE STORY OF THE FAIRMILE PATROL BOAT'' [Film]. England: Gaumont British News.<br />
* Konstam, A. (2010). ''British Motor Gun Boat 1939–45'' (pp. 12-15, 40-41). Oxford, England: Osprey Publishing. ISBN 978-1-84908-077-4.<br />
* Lambert, J., & Ross A. (1990). ''Allied Coastal Forces of World War II Volume 1: Fairmile Designs and U.S. Submarine Chasers'' (pp. 9-28). London, England: Conway Maritime Press. ISBN 0-85177-519-5.<br />
<br />
{{Britain boats}}</div>U27474208https://old-wiki.warthunder.com/index.php?title=Fairmile_B_(ML345)&diff=107841Fairmile B (ML345)2021-07-29T01:45:34Z<p>U27474208: Wording</p>
<hr />
<div>{{Specs-Card<br />
|code=uk_fairmile_b_ml345<br />
|images={{Specs-Card-Image|GarageImage_{{PAGENAME}}.jpg}}<br />
}}<br />
<br />
== Description ==<br />
<!-- ''In the first part of the description, cover the history of the ship's creation and military application. In the second part, tell the reader about using this ship in the game. Add a screenshot: if a beginner player has a hard time remembering vehicles by name, a picture will help them identify the ship in question.'' --><br />
The '''{{Specs|name}}''' is a rank {{Specs|rank}} British motor gun boat {{Battle-rating}}. It was introduced in [[Update 1.83 "Masters of the Sea"]] as part of the British fleet closed beta test. With the split of the naval tech trees in [[Update "New Power"]], {{PAGENAME}} was moved to the coastal fleet tech tree.<br />
<br />
== General info ==<br />
=== Survivability and armour ===<br />
{{Specs-Fleet-Armour}}<br />
<!-- ''Talk about the vehicle's armour. Note the most well-defended and most vulnerable zones, e.g. the ammo magazine. Evaluate the composition of components and assemblies responsible for movement and manoeuvrability. Evaluate the survivability of the primary and secondary armaments separately. Don't forget to mention the size of the crew, which plays an important role in fleet mechanics. Save tips on preserving survivability for the "Usage in battles" section. If necessary, use a graphical template to show the most well-protected or most vulnerable points in the armour.'' --><br />
<br />
[[File:{{PAGENAME}}_Internals.png|thumb|{{PAGENAME}} internals (starboard). Note the ammunition storage in the bow.]]<br />
<br />
Fairmile B (ML345) has the following armour layout:<br />
<br />
* [[3 pdr QF Hotchkiss (47 mm)|47 mm 3 pdr QF Hotchkiss]] gun shield: 8 mm, anti-fragmentation armour<br />
* [[20 mm/70 Oerlikon Mk.II (20 mm)|20 mm/70 Oerlikon Mk.II (single)]] gun shield: 12.7 mm, hardened armour<br />
* [[20 mm/70 Oerlikon Mark V (20 mm)|20 mm/70 Oerlikon Mark V (twin)]] gun shield: 12.7 mm, hardened armour<br />
* Hull: 28 mm, wood<br />
* Superstructure: 15 mm, wood<br />
<br />
Like most coastal vessels, Fairmile B (ML345) has no practical armour. The gunshields are largely superficial; while they may stop low-calibre machine guns, heavy machine guns and cannons will easily penetrate them at any range. The hull and superstructure are unarmoured and will not stop any sort of gunfire. <br />
<br />
The hull is split into four compartments. The first compartment starts at the bow and ends in front of the bridge, just in behind the pumps; the second ends at the funnel, between the radio station and the engines; the third ends in front of the aft 20 mm/70 Oerlikon Mark V twin mount; and the fourth ends at the stern. <br />
<br />
Fairmile B (ML345) can be hull-broken by any round with a large enough diameter and explosive mass. In general, this is limited to HE rounds greater with a diameter greater than or equal to 4 inches (102 mm) with an explosive mass greater than 1.5 kg. At Fairmile B (ML345)'s own battle rating, there is only one gun capable of hull-breaking her:<br />
<br />
* the [[8cwt QF Mk I (114 mm)|114 mm 8cwt QF Mk I]], found on {{Specs-Link|uk_dark_class}}.<br />
<br />
There are two ammunition storages: the first, holding the ammunition for the primary armament, is located well above the waterline in the bow, below and in front of the fore 47 mm 3 pdr QF Hotchkiss cannon; the other ammunition storage, holding the ammunition for both the secondary and the anti-aircraft armament, is located in the stern, just above the waterline in front of the steering gear. Destroying either will instantly destroy Fairmile B (ML345).<br />
<br />
Fairmile B (ML345) has a crew complement of 18. With a stock crew, it is knocked out when 11 crew are lost; with an aced crew, this is increased to 13. Overall, the survivability is average. <br />
<br />
=== Mobility ===<br />
{{Specs-Fleet-Mobility}}<br />
<!-- ''Write about the ship's mobility. Evaluate its power and manoeuvrability, rudder rerouting speed, stopping speed at full tilt, with its maximum forward and reverse speed.'' --><br />
<br />
{{NavalMobility<br />
|SpeedForwardStockAB = 37<br />
|SpeedBackStockAB = 14<br />
|TurnTimeStockAB = 55.47<br />
|TurnSpeedStockAB = 28<br />
<br />
|TurnTimeSpadedAB = 33.67<br />
|TurnSpeedSpadedAB = 25<br />
<br />
|SpeedForwardStockRB = 32<br />
|SpeedBackStockRB = 12<br />
|TurnTimeStockRB = 65.31<br />
|TurnSpeedStockRB = 27<br />
<br />
|TurnTimeSpadedRB = 48.14<br />
|TurnSpeedSpadedRB = 27<br />
}}<br />
<br />
Fairmile B (ML345) has a displacement of 65 tons.<br />
<br />
=== Modifications and economy ===<br />
{{Specs-Economy}}<br />
<br />
The recommended modification research order is:<br />
<br />
# Tool Set<br />
# Fire Protection System<br />
# 20 mm HE<br />
# 20 mm AP<br />
# Propeller Replacement<br />
# Improved Rangefinder<br />
# Artillery Support<br />
<br />
After that, research the rest of the seakeeping modifications, followed by the rest of the modifications in whatever order you prefer.<br />
<br />
== Armament ==<br />
{{Specs-Fleet-Armaments}}<br />
=== Primary armament ===<br />
{{Specs-Fleet-Primary}}<br />
<!-- ''Provide information about the characteristics of the primary armament. Evaluate their efficacy in battle based on their reload speed, ballistics and the capacity of their shells. Add a link to the main article about the weapon: <code><nowiki>{{main|Weapon name (calibre)}}</nowiki></code>. Broadly describe the ammunition available for the primary armament, and provide recommendations on how to use it and which ammunition to choose.'' --><br />
{{main|3 pdr QF Hotchkiss (47 mm)}}<br />
<br />
The primary armament consists of a single 47 mm 3 pdr QF Hotchkiss cannon mounted on the bow, with a maximum of 300 rounds of ammunition. Stock, the mount can traverse horizontally at a rate of 34°/s and vertically at a rate of 21°/s; with the "Primary Armament Targeting" modification installed, this is increased to 40°/s and 25°/s respectively. The gun is single-shot with a nominal rate of fire of 30 rounds/min. With a stock crew, it can be reloaded in 2.6 seconds; with an aced crew, it can be reloaded in 2 seconds.<br />
<br />
{| class="wikitable" style="text-align:center" width="25%"<br />
! colspan="2" | Primary armament guidance<br />
|-<br />
! Horizontal !! Vertical<br />
|-<br />
| ±180° || -10°/+70°<br />
|-<br />
|}<br />
<br />
There is only one ammunition type available:<br />
<br />
* 3 pdr Mk.2 HE<br />
<br />
{| class="wikitable" style="text-align:center" width="100%"<br />
! colspan="8" | Penetration statistics<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! rowspan="2" | Type of<br>warhead<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 100 m !! 1,000 m !! 2,000 m !! 3,000 m !! 4,000 m !! 5,000 m<br />
|-<br />
| 3 pdr Mk.2 HE || HE || 4 || 4 || 4 || 4 || 4 || 4<br />
|-<br />
|}<br />
{| class="wikitable" style="text-align:center" width="100%"<br />
! colspan="10" | Shell details<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! rowspan="2" | Type of<br>warhead<br />
! rowspan="2" | Velocity<br>(m/s)<br />
! rowspan="2" | Projectile<br>Mass (kg)<br />
! rowspan="2" | Fuse delay<br>(m)<br />
! rowspan="2" | Fuse sensitivity<br>(mm)<br />
! rowspan="2" | Explosive Mass<br>(TNT equivalent) (g)<br />
! colspan="3" | Ricochet<br />
|-<br />
! 0% !! 50% !! 100%<br />
|-<br />
| 3 pdr Mk.2 HE || {{Annotation|HE|High-explosive}} || 571 || 1.5 || 0 || 0.1 || 132 || 79° || 80° || 81°<br />
|-<br />
|}<br />
<br />
=== Secondary armament ===<br />
{{Specs-Fleet-Secondary}}<br />
<!-- ''Some ships are fitted with weapons of various calibres. Secondary armaments are defined as weapons chosen with the control <code>Select secondary weapon</code>. Evaluate the secondary armaments and give advice on how to use them. Describe the ammunition available for the secondary armament. Provide recommendations on how to use them and which ammunition to choose. Remember that any anti-air armament, even heavy calibre weapons, belong in the next section. If there is no secondary armament, remove this section.'' --><br />
{{main|20 mm/70 Oerlikon Mk.II (20 mm)|20 mm/70 Oerlikon Mark V (20 mm)}}<br />
<br />
The secondary armament consists of one 20 mm/70 Oerlikon Mk.II cannon and two 20 mm/70 Oerlikon Mk.V cannons.<br />
<br />
The 20 mm/70 Oerlikon Mk.II cannon is fitted in a single mount amidships aft of the funnel, with a maximum of 1,800 rounds of ammunition. Stock, the mount can traverse horizontally at a rate of 64°/s and vertically at a rate of 55°/s; with the "Auxiliary Armament Targeting" modification installed, this is increased to 75°/s and 65°/s respectively. The gun has a magazine capacity of 60 rounds and a cyclic rate of fire of around 450 rounds/min. With a stock crew, the gun can be reloaded in 5.2 seconds; with an aced crew, it can be reloaded in 4 seconds.<br />
<br />
The 20 mm/70 Oerlikon Mk.V cannons are fitted in a twin mount aft. There are 3,600 rounds of ammunition available for it, 1,800 rounds per gun. Stock, the mount can traverse horizontally at a rate of 51°/s and vertically at a rate of 43°/s; with the "Auxiliary Armament Targeting" modification installed, this is increased to 60°/s and 50°/s respectively. Each gun has a magazine capacity of 60 rounds and a stated cyclic rate of fire of around 450 rounds/min, though the gun on the gunner's right side fires slightly faster, around 485 rounds/min. With a stock crew, the guns can be reloaded in 10.4 seconds; with an aced crew, they can be reloaded in 8 seconds.<br />
<br />
{{Notice|Turrets are named sequentially, clockwise, starting at the bow}}<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="8" | Secondary armament guidance<br />
|-<br />
! colspan="2" rowspan="1" | No.1 Turret (1x [[20 mm/70 Oerlikon Mk.II (20 mm)|20 mm/70 Oerlikon Mk.II]])<br />
! colspan="2" rowspan="1" | No.2 Turret (2x [[20 mm/70 Oerlikon Mark V (20 mm)|20 mm/70 Oerlikon Mk.V]])<br />
|-<br />
! Horizontal !! Vertical !! Horizontal !! Vertical<br />
|-<br />
| ±147° || -5°/+60° || ±140° || -4°/+62°<br />
|-<br />
|}<br />
<br />
All of the secondary armament guns share the same ammunition, of which there are three types available:<br />
<br />
* Universal: {{Annotation|HEF-T|High-explosive fragmentation tracer}}{{-}}{{Annotation|HEF-I|High-explosive fragmentation incendiary}}{{-}}{{Annotation|AP-T|Armour-piercing tracer}}<br />
<br />
* 20 mm HE: {{Annotation|HEF-T|High-explosive fragmentation tracer}}{{-}}{{Annotation|HEF-I|High-explosive fragmentation incendiary}}{{-}}{{Annotation|AP-T|Armour-piercing tracer}}{{-}}{{Annotation|HEF-I|High-explosive fragmentation incendiary}}<br />
<br />
* 20 mm AP: {{Annotation|AP-T|Armour-piercing tracer}}{{-}}{{Annotation|AP-T|Armour-piercing tracer}}{{-}}{{Annotation|AP-T|Armour-piercing tracer}}{{-}}{{Annotation|HEF-I|High-explosive fragmentation incendiary}}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="7" | Penetration statistics<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| Universal || 35 || 33 || 26 || 21 || 18 || 15<br />
|-<br />
| 20 mm HE || 35 || 33 || 26 || 21 || 18 || 15<br />
|-<br />
| 20 mm AP || 35 || 33 || 26 || 21 || 18 || 15<br />
|-<br />
|}<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="8" | Penetration statistics (shell)<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! rowspan="2" | Type of<br>warhead<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| HEF-T || {{Annotation|HEF-T|High-explosive fragmentation tracer}} || 2 || 2 || 2 || 2 || 2 || 2<br />
|-<br />
| AP-T || {{Annotation|AP-T|Armour-piercing tracer}} || 35 || 33 || 26 || 21 || 18 || 15<br />
|-<br />
| HEF-I || {{Annotation|HEF-I|High-explosive fragmentation incendiary}} || 2 || 2 || 2 || 2 || 2 || 2<br />
|-<br />
|}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="10" | Shell details<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! rowspan="2" | Type of<br>warhead<br />
! rowspan="2" | Velocity<br>(m/s)<br />
! rowspan="2" | Projectile<br>Mass (kg)<br />
! rowspan="2" | Fuse delay<br>(m)<br />
! rowspan="2" | Fuse sensitivity<br>(mm)<br />
! rowspan="2" | Explosive Mass<br>(TNT equivalent) (g)<br />
! colspan="3" | Ricochet<br />
|-<br />
! 0% !! 50% !! 100%<br />
|-<br />
| HEF-T || {{Annotation|HEF-T|High-explosive fragmentation tracer}} || 844 || 0.12 || N/A || 0.1 || 6.57 || 79° || 80° || 81°<br />
|-<br />
| AP-T || {{Annotation|AP-T|Armour-piercing tracer}} || 844 || 0.12 || N/A || N/A || N/A || 47° || 60° || 65°<br />
|-<br />
| HEF-I || {{Annotation|HEF-I|High-explosive fragmentation incendiary}} || 838 || 0.12 || N/A || 0.1 || 11.17 || 79° || 80° || 81°<br />
|-<br />
|}<br />
<br />
The best ammunition for general use is the HE belt, due to it having the highest ratio of HE rounds to AP rounds, making it the most effective against both aircraft and the vast majority of surface targets. Because of this, the HE belt should be the main ammunition once it is unlocked. Additionally, the AP belt, with its higher amount of AP rounds, is better for dealing with armoured targets, so take a decent amount of these as well for specialized usage.<br />
<br />
=== Anti-aircraft armament ===<br />
{{Specs-Fleet-AA}}<br />
<!-- ''An important part of the ship's armament responsible for air defence. Anti-aircraft armament is defined by the weapon chosen with the control <code>Select anti-aircraft weapons</code>. Talk about the ship's anti-air cannons and machine guns, the number of guns and their positions, their effective range, and about their overall effectiveness – including against surface targets. If there are no anti-aircraft armaments, remove this section.'' --><br />
{{main|Lewis 1916 (7.72 mm)}}<br />
<br />
The anti-aircraft armament consists of four 7.72 mm Lewis 1916 machineguns in two twin mounts, one on either side of the bridge. There are 3,880 rounds of ammunition available for each mount, 1,940 rounds per gun, for a total of 7,760 rounds. No horizontal or vertical traverse rates are given in-game, though installing the "Anti-Air Armament Targeting" modification will still increase their traverse rates by 18%. Each gun has a magazine capacity of 97 rounds and a cyclic rate of fire of around 550 rounds/min. With a stock crew, the guns can be reloaded in 18.2 seconds; with an aced crew, they can be reloaded in 14 seconds.<br />
<br />
{{Notice|Turrets are named sequentially, clockwise, starting at the bow}}<br />
<br />
{| class="wikitable" style="text-align:center" width="50%"<br />
! colspan="8" | Anti-aircraft armament guidance<br />
|-<br />
! colspan="2" rowspan="1" | No.1 Turret (starboard)<br />
! colspan="2" rowspan="1" | No.2 Turret (port)<br />
|-<br />
! Horizontal !! Vertical !! Horizontal !! Vertical<br />
|-<br />
| -30°/+45°|| -5°/+50° || -45°/+30° || -5°/+50°<br />
|-<br />
|}<br />
<br />
There are no ammunition options available for this gun on Fairmile B (ML345). Neither belt composition nor penetration statistics are given in-game.<br />
<br />
=== Additional armament ===<br />
{{Specs-Fleet-Additional}}<br />
<!-- ''Describe the available additional armaments of the ship: depth charges, mines, torpedoes. Talk about their positions, available ammunition and launch features such as dead zones of torpedoes. If there is no additional armament, remove this section.'' --><br />
{{main|Mk.VII depth charge|Y-gun Mk.VII depth charge|Type M Mark I mine}}<br />
<br />
Fairmile B (ML345) has five possible loadouts:<br />
<br />
# 14x Mk.VII depth charge<br />
# 6x Y-gun Mk.VII depth charge<br />
# 14x Mk.VII depth charge, 6x Y-gun Mk.VII depth charge<br />
# 8x Type M Mk I mines<br />
# Without load<br />
<br />
'''Depth Charges'''<br />
<br />
[[File:{{PAGENAME}}_DC_Order.png|thumb|Mk.VII depth charges numbered according to their drop order.]]<br />
<br />
The Mk.VII depth charges are carried in racks on the stern, seven on either side, with three in front of the aft gun and four behind. The depth charges are dropped one at a time in the following order: foremost to aftmost and alternating port to starboard, starting with the foremost depth charge on the port side.<br />
<br />
The Y-gun Mk.VII depth charges are fired from a depth charge thrower mounted in front of the aft gun. The depth charge thrower has two arms, one pointed to either side of the boat, and will launch either the port or starboard depth charge depending on the direction the player is currently looking. These cannot be aimed and will always land approximately 50 m away from the boat. After launching, there is a 20 second reload, although the damage model is actually updated after only 10 seconds. Aside from the two depth charges already on the thrower, there are an additional four stored in reserve on the deck just aft of the thrower, two per side.<br />
<br />
Before spawning, the detonation time delay for both types of depth charges can be set anywhere between 3 seconds and 10 seconds.<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="7" | Depth charge characteristics ([[Mk.VII depth charge]])<br />
|-<br />
! Mass (kg)<br />
! Explosive type<br />
! Explosive mass (kg)<br />
! TNT equivalent (kg)<br />
! HE armour<br>penetration (mm)<br />
! Armoured vehicle<br>destruction radius (m)<br />
! Fragment dispersion<br>radius (m)<br />
|-<br />
| 196 || TNT || 130 || 130 || 101 || 8 || 122 <br />
|}<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="7" | Depth charge characteristics ([[Y-gun Mk.VII depth charge]])<br />
|-<br />
! Mass (kg)<br />
! Explosive type<br />
! Explosive mass (kg)<br />
! TNT equivalent (kg)<br />
! HE armour<br>penetration (mm)<br />
! Armoured vehicle<br>destruction radius (m)<br />
! Fragment dispersion<br>radius (m)<br />
|-<br />
| 196 || TNT || 130 || 130 || 101 || 8 || 122 <br />
|}<br />
<br />
There is almost no practical reason to use depth charges on any naval vessel in the game. Although they usually result in a one-hit kill if used properly, they are extremely situational, requiring the player to close to point-blank ranges to even use them. In almost every case, anytime a depth charge could be used, the guns or torpedoes can be used instead to greater effect. In fact, depth charges tend to actually be a liability in battle, since they essentially act as exposed ammo racks before they're dropped. They can be shot at, and if destroyed, they have a chance to detonate, instantly destroying the boat.<br />
<br />
Despite this, some success can be had in dropping them either next to, or in front of a large, slow target. If dropping them next to the target, remember the depth charge drop order, since it's most likely that only the depth charges dropped on the side closest to the enemy will deal any damage. If dropping in front of the target, rush in from the sides as quickly as possible and drop them all at once directly in front of the target. For both cases, set the depth charge time delay to the minimum 3 seconds, since any higher time delay will only allow the depth charge to sink further away from the target, giving them more time to move out of the way. Again, using depth charges is extremely situational, and they will only be a liability the vast majority of the time, so take them at your own discretion. <br />
<br />
'''Mines'''<br />
<br />
[[File:{{PAGENAME}}_Mine_Order.png|thumb|Type M Mk I mines numbered according to their drop order.]]<br />
<br />
The Type M Mk I mines are carried amidships, two on either side in front of the aft gun and similarly behind. They are dropped in the following order (see the image): aftmost to foremost and alternating from port to starboard, starting with the aftmost mine on the port side.<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="4" | Mine characteristics<br />
|-<br />
! Mass (kg)<br />
! Explosive type<br />
! Explosive mass (kg)<br />
! TNT equivalent (kg)<br />
|-<br />
| 600 || TNT || 227 || 227<br />
|}<br />
<br />
Like depth charges, naval mines are situational weapons that act like exposed ammunition racks if not dropped. However, because they do not automatically detonate, they are much more useful. With mines, Fairmile B (ML345) can play a utility role by using the mines to cut off narrow passageways and block capture points, then returning back to a friendly capture points to reload before repeating the process. This playstyle is still very situational, though, as it requires misplay on the enemy's part. Mines have a marker in all gamemodes an enemy players will receive a warning when too close to one, so most players will destroy the mines with gunfire or will simply sail around them. Additionally, mines will also despawn after some period of time, so complete coverage of the entire map is not possible. This playstyle also forces Fairmile B (ML345) to the front lines, which is undesirable due to her poor gun armament.<br />
<br />
Alternatively, mines can also be used in a more proactive role, essentially like a better depth charge as described above, since they have no detonation time delay and have a much larger explosive charge. If using them like this, remember the drop order; it is not the same as the depth charge drop order. All said, mines are still only situationally useful, so take them based on personal preference. <br />
<br />
== Usage in battles ==<br />
<!-- ''Describe the technique of using this ship, the characteristics of her use in a team and tips on strategy. Abstain from writing an entire guide – don't try to provide a single point of view, but give the reader food for thought. Talk about the most dangerous opponents for this vehicle and provide recommendations on fighting them. If necessary, note the specifics of playing with this vehicle in various modes (AB, RB, SB).'' --><br />
<br />
Fairmile B (ML345) has the same primary armament as the previous Fairmile boat, the {{Specs-Link|uk_fairmile_a_ml100}}, although with a few differences. Most notably, the gun is now mounted on the bow, which greatly increases its versatility. The gun is also now equipped with a gun shield and can now elevate to 70°, though neither of these really change the gun's effectiveness; the gun shield can easily be penetrated by almost any sort of gunfire and the increased elevation is meaningless without proper anti-aircraft rounds. Arguably, the gun shield actually makes the gun worse as there is now a greater surface area to target to knock out the gun. Unfortunately, the gun's many weaknesses remain the same. The 3 pdr cannon, like all single-shot weapons of this calibre, has an abysmal damage output that is easily outclassed by any autocannon. Additionally, the accuracy is poor, which, together with the low muzzle velocity and projectile mass, limits the cannon's effective range. These same problems are also present in the anti-aircraft armament. The usefulness of the 7.72 mm Lewis 1916 machineguns are limited in the same way by their poor damage output and low maximum range.<br />
<br />
In contrast, secondary armament is much more capable. Sporting three 20 mm/70 Oerlikon cannons, just one of these by itself will outperform the 3 pdr QF Hotchkiss cannon in damage output. Because of this, Fairmile B (ML345) should be played while controlling the secondary armament, rather than the primary armament. That said, the secondary guns do have their own downsides. First, neither gun mount can fire directly forwards. Second, and more significantly, neither mount can traverse a full 360°, meaning that there will be several seconds of delay between switching from one side of the boat to the other. To avoid this, preemptively turn the guns to the side you most expect enemies to be and try to keep all enemies on only one side of the boat to avoid having to constantly switch directions. Because of the strong armament, Fairmile B (ML345) can be played more aggressively than most of the previous vessels in the tech tree, although keep in mind that the survivability is essentially the same as the Fairmile A (ML100), so stick with the team and make use of cover whenever possible. As with most autocannons and machine guns, be proactive with the reloads. If there isn't much ammunition left in the magazine after an engagement, fire off any remaining ammunition in the 20 mm/70 Oerlikon cannons to begin reloading in safety, retreating to do so if necessary. For Fairmile B (ML345), consider doing this when there are around 60 rounds or less between the three guns.<br />
<br />
One thing of note with Fairmile B (ML345) is the large ammunition storage located in the bow. While it generally doesn't tend to be much of an issue against machine guns and low-calibre autocannons, large-calibre HE can easily set it off. Luckily, this weak spot can be eliminated, albeit at the cost of the 3 pdr cannon, by taking the minimum amount of ammo for that gun and firing all of it off immediately after spawning, emptying the ammo storage. While you do lose use of the 3 pdr cannon, the cannon isn't very useful in and of itself, so if you plan on primarily using the secondary armament anyway, the cost of losing the 3 pdr cannon is outweighed by the increase in survivability.<br />
<br />
Lastly, keep in mind that while controlling the secondary armament, there won't be any effective anti-aircraft guns. The 3 pdr cannon is practically useless against aircraft, and the Lewis machine guns only begin firing once a target is within 1 km, so it's important to manually scan the sky for aircraft. Do not rely on either the primary or anti-aircraft armament for AA defense, but rather, use them as a warning indicator. If they start firing, then you know there is an aircraft nearby, at which point you can either shoot it down yourself, or if you're not confident with your aim, switch away from the secondary armament to give the AI gunners control of the cannons.<br />
<br />
=== Pros and cons ===<br />
<!-- ''Summarise and briefly evaluate the vehicle in terms of its characteristics and combat effectiveness. Mark its pros and cons in the bulleted list. Try not to use more than 6 points for each of the characteristics. Avoid using categorical definitions such as "bad", "good" and the like - use substitutions with softer forms such as "inadequate" and "effective".'' --><br />
<br />
'''Pros:'''<br />
<br />
* Powerful secondary armament<br />
* Ability to carry mines<br />
<br />
'''Cons:'''<br />
<br />
* Very weak primary and anti-air armaments: poor damage output and low effective range<br />
* Prominent ammunition storage in the bow<br />
* Below-average top speed and manoeuvrability<br />
<br />
== History ==<br />
<!-- ''Describe the history of the creation and combat usage of the ship in more detail than in the introduction. If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the ship and adding a block "/History" (example: <nowiki>https://wiki.warthunder.com/(Ship-name)/History</nowiki>) and add a link to it here using the <code>main</code> template. Be sure to reference text and sources by using <code><nowiki><ref></ref></nowiki></code>, as well as adding them at the end of the article with <code><nowiki><references /></nowiki></code>. This section may also include the ship's dev blog entry (if applicable) and the in-game encyclopedia description (under <code><nowiki>=== In-game description ===</nowiki></code>, also if applicable).'' --><br />
<br />
The Fairmile B motor launch originated as an Admiralty design in mid-1939. At the time, the Admiralty was faced with a severe lack of anti-submarine boats. An existing design by the Fairmile Marine Company, the Fairmile A type, was in the works, but a prototype had yet to be produced. Still, the Admiralty saw many issues with the design, largely stemming from its hard chine hull. The Admiralty created a wooden motor launch design of similar dimensions to the Fairmile A type but with a round bilge hull design instead. This design underwent trials later that year and proved itself to be vastly superior to the Fairmile A type in its seakeeping ability. Impressed by the decentralized production scheme of the Fairmile A type, the contract to mass-produce the new design was awarded to the Fairmile Company with an initial order for 13 vessels placed on 22nd September 1939. Like the Fairmile A type, the new design would be manufactured from prefabricated parts under Fairmile's production scheme. Under this system, parts and materials would be sourced from local companies and assembled at Fairmile factories as near to completion as possible. The parts could then be sent in kit form ready for final assembly to any boatyard around the world.<br />
<br />
The new design, now known as the Fairmile B type motor launch, had a length of 112 ft, a beam of 18 ft 3 in, and a draught of around 5 ft. As originally designed, the boats were to be powered by three Hall-Scott Defender petrol engines, 600 bph each, provided under Lend-Lease from America. However, due to a shortage of supply from the American manufacturer, it was reluctantly decided that the boats should instead be powered by only two engines, the loss in speed deemed acceptable if it meant that production could potentially be increased by 50%. With only two engines, the Fairmile B type could achieve a maximum speed of 20 knots. With a fuel capacity of 2,305 gallons, they had a range of 1,500 miles at 12 knots, though above-deck fuel tanks would frequently be added to further increase the operational range.<br />
<br />
Unlike the Fairmile A type, the question of the Fairmile B type's armament was decided from the beginning. The Fairmile B type was originally designed for anti-submarine work, specified to be able to carry 12 depth charges and ASDIC sonar equipment. Its intended role was also reflected in its gun armament: one 3-pdr Hotchkiss cannon aft and a pair of Lewis guns forward. Very early on, it was decided that the Fairmile B type should also have the option for variations in its armament. To achieve this, steel strips with tapped holes were installed on the deck onto which any desired armament could be mounted. For the boat to be refitted, all that needed to be done was to unbolt the old armament and swap in the new armament. Because of this, the Fairmile B type could incredibly be entirely refitted in just 48 hours. Due to this modular armament design, the Fairmile B types would often receive many armament refits for a variety of roles — including as minesweepers, minelayers, convoy escorts, submarine chasers, gun boats, air-sea rescue launches, and even as motor torpedo boats — depending on what was needed of them in the areas they were assigned to.<br />
<br />
Over the course of World War II, Fairmile B type parts kits would be shipped to various boatyards all throughout the British Empire and Commonwealth. From Jamaica to Singapore, Canada to New Zealand, over 650 Fairmile B types were built from 1940 to 1945. During the war, the Fairmile B types were operated by the Royal Navy, the Royal Canadian Navy, the Royal Australian Navy, the Royal New Zealand Navy, the Royal Indian Navy, the Free French Naval Forces, and the Royal Norwegian Navy. They repeatedly proved their worth, making up for their lack of speed with efficiency, versatility, and reliability. After the war, with the need for so many boats gone, many of the surviving Fairmile B types in Royal Navy service would be scrapped or sold as pleasure boats, though some Fairmile B types were either sold or given to many minor navies, including the Italian Navy, the Royal Netherlands Navy, the South African Navy, the Burmese Navy, the Royal Hellenic Navy, the South African Navy, and the Turkish Navy, which all continued to operate them for many years after the war.<br />
<br />
ML-345 was a Fairmile B type motor launch ordered on 21st August 1940. She was built by Diesel Constructors at Isleworth, London and was completed on 30th March 1942. ML-345 survived the war and was eventually sold in 1946.<br />
<br />
== Media ==<br />
<!-- ''Excellent additions to the article would be video guides, screenshots from the game, and photos.'' --><br />
<br />
;'''Skins'''<br />
<br />
* [https://live.warthunder.com/feed/camouflages/?vehicleCountry=britain&vehicleType=ship&vehicleClass=gun_boat&vehicle=uk_fairmile_b_ml345 Skins and camouflages for the {{PAGENAME}} from live.warthunder.com.]<br />
<br />
== See also ==<br />
<!-- ''Links to articles on the War Thunder Wiki that you think will be useful for the reader, for example:''<br />
* ''reference to the series of the ship;''<br />
* ''links to approximate analogues of other nations and research trees.'' --><br />
<br />
* {{Specs-Link|uk_fairmile_a_ml100}}<br />
* {{Specs-Link|uk_70ft_mgb}}<br />
* {{Specs-Link|uk_dark_class}}<br />
<br />
== External links ==<br />
<!-- ''Paste links to sources and external resources, such as:''<br />
* ''topic on the official game forum;''<br />
* ''encyclopedia page on ship;''<br />
* ''other literature.'' --><br />
<br />
* [http://cfv.org.uk/research/boat/database <nowiki>[Coastal Forces Veterans]</nowiki> Boat Database]<br />
<br />
===Bibliography===<br />
<br />
* Gaumont British News. (Producer). & White, W. B. (Director). (1941). ''THE STORY OF THE FAIRMILE PATROL BOAT'' [Film]. England: Gaumont British News.<br />
* Konstam, A. (2010). ''British Motor Gun Boat 1939–45'' (pp. 12-15, 40-41). Oxford, England: Osprey Publishing. ISBN 978-1-84908-077-4.<br />
* Lambert, J., & Ross A. (1990). ''Allied Coastal Forces of World War II Volume 1: Fairmile Designs and U.S. Submarine Chasers'' (pp. 9-28). London, England: Conway Maritime Press. ISBN 0-85177-519-5.<br />
<br />
{{Britain boats}}</div>U27474208https://old-wiki.warthunder.com/index.php?title=MTB_Vosper(2)&diff=107840MTB Vosper(2)2021-07-29T01:43:10Z<p>U27474208: Wording</p>
<hr />
<div>{{About<br />
| about = British motor torpedo boat '''{{PAGENAME}}'''<br />
| usage = other versions<br />
| link = MTB Vosper (Family)<br />
}}<br />
{{Specs-Card<br />
|code=uk_mtb_vosper_2series<br />
|images={{Specs-Card-Image|GarageImage_{{PAGENAME}}.jpg}}<br />
}}<br />
<br />
== Description ==<br />
<!-- ''In the first part of the description, cover the history of the ship's creation and military application. In the second part, tell the reader about using this ship in the game. Add a screenshot: if a beginner player has a hard time remembering vehicles by name, a picture will help them identify the ship in question.'' --><br />
The '''{{Specs|name}}''' is a rank {{Specs|rank}} British motor torpedo boat {{Battle-rating}}. It was introduced in [[Update 1.83 "Masters of the Sea"]] as part of the British fleet closed beta test. With the split of the naval tech trees in [[Update "New Power"]], {{PAGENAME}} was moved to the coastal fleet tech tree.<br />
<br />
== General info ==<br />
=== Survivability and armour ===<br />
{{Specs-Fleet-Armour}}<br />
<!-- ''Talk about the vehicle's armour. Note the most well-defended and most vulnerable zones, e.g. the ammo magazine. Evaluate the composition of components and assemblies responsible for movement and manoeuvrability. Evaluate the survivability of the primary and secondary armaments separately. Don't forget to mention the size of the crew, which plays an important role in fleet mechanics. Save tips on preserving survivability for the "Usage in battles" section. If necessary, use a graphical template to show the most well-protected or most vulnerable points in the armour.'' --><br />
<br />
[[File:{{PAGENAME}}_Internals.png|thumb|{{PAGENAME}} internals (starboard). Note the ammunition storage below the bridge.]]<br />
<br />
MTB Vosper(2) has the following armour layout:<br />
<br />
* [[20 mm/70 Oerlikon Mk.II (20 mm)|20 mm/70 Oerlikon Mk.II]] gun shield: 12.7 mm, hardened armour<br />
* Hull: 24 mm, wood<br />
* Superstructure: 15 mm, wood<br />
<br />
While the gun shield may stop low-calibre machineguns, heavy machineguns and cannons will have no trouble with them at any range. The hull and superstructure will not stop any sort of gunfire. <br />
<br />
The hull is split into three compartments. Starting from the bow and working towards the stern, the first compartment starts at the bow and ends at the forward gun mount; the second ends in front of the aft gun mount, between the fuel tanks and the engines; and the third ends at the stern. <br />
<br />
MTB Vosper(2) can be hull-broken by any round with a large enough diameter and explosive mass. In general, this is limited to HE rounds greater with a diameter greater than or equal to 4 inches (102 mm) with an explosive mass greater than 1.5 kg. At MTB Vosper(2)'s own battle rating, there is only one gun capable of hull-breaking her:<br />
<br />
* the [[8cwt QF Mk I (114 mm)|114 mm 8cwt QF Mk I]], found on {{Specs-Link|uk_dark_class}}.<br />
<br />
There is one ammunition storage that holds ammunition for both the primary armament and secondary armament. It is located directly below the bridge, just above the waterline. Destroying it will instantly destroy MTB Vosper(2).<br />
<br />
MTB Vosper(2) has a crew complement of 12. With a stock crew, it is knocked out when 8 crew are lost; with an aced crew, this is increased to 9. Overall, the survivability is average.<br />
<br />
=== Mobility ===<br />
{{Specs-Fleet-Mobility}}<br />
<!-- ''Write about the ship's mobility. Evaluate its power and manoeuvrability, rudder rerouting speed, stopping speed at full tilt, with its maximum forward and reverse speed.'' --><br />
<br />
{{NavalMobility<br />
|SpeedForwardStockAB = 76<br />
|SpeedBackStockAB = 26<br />
|TurnTimeStockAB = 23.68<br />
|TurnSpeedStockAB = 45<br />
<br />
|TurnTimeSpadedAB = 16.33<br />
|TurnSpeedSpadedAB = 43<br />
<br />
|SpeedForwardStockRB = 64<br />
|SpeedBackStockRB = 22<br />
|TurnTimeStockRB = 26.53<br />
|TurnSpeedStockRB = 46<br />
<br />
|TurnTimeSpadedRB = 21.99<br />
|TurnSpeedSpadedRB = 45<br />
}}<br />
<br />
MTB Vosper(2) has a displacement of 38 tons.<br />
<br />
When moving forwards at high speeds, the bow will drift slightly to starboard without any player input. When moving backwards, the bow drifts slightly to port.<br />
<br />
=== Modifications and economy ===<br />
{{Specs-Economy}}<br />
<br />
The recommended modification research order is:<br />
<br />
# Tool Set<br />
# Fire Protection System<br />
# 12.7 mm I belt or 20 mm HE<br />
# Smokescreen<br />
# Propeller Replacement<br />
# Artillery Support<br />
<br />
After that, prioritize the rest of the seakeeping modifications first, then research the remaining modifications in whatever order you prefer.<br />
<br />
== Armament ==<br />
{{Specs-Fleet-Armaments}}<br />
=== Primary armament ===<br />
{{Specs-Fleet-Primary}}<br />
<!-- ''Provide information about the characteristics of the primary armament. Evaluate their efficacy in battle based on their reload speed, ballistics and the capacity of their shells. Add a link to the main article about the weapon: <code><nowiki>{{main|Weapon name (calibre)}}</nowiki></code>. Broadly describe the ammunition available for the primary armament, and provide recommendations on how to use it and which ammunition to choose.'' --><br />
{{main|20 mm/70 Oerlikon Mk.II (20 mm)}}<br />
<br />
The primary armament consists of a single 20 mm/70 Oerlikon Mk.II mounted fore, with a maximum of 1,980 rounds of ammunition. Stock, the mount can traverse horizontally and vertically at a rate of 64°/s; with the "Primary Armament Targeting" modification installed, this is increased to 75°/s. The gun has a magazine capacity of 60 rounds and a cyclic rate of fire of around 450 rounds/min. With a stock crew, it can be reloaded in 5.2 seconds; with an aced crew, it can be reloaded in 4 seconds.<br />
<br />
{| class="wikitable" style="text-align:center" width="25%"<br />
! colspan="2" | Primary armament guidance<br />
|-<br />
! Horizontal !! Vertical<br />
|-<br />
| ±180° || -10°/+60°<br />
|-<br />
|}<br />
<br />
There are three ammunition types available:<br />
<br />
* Universal: {{Annotation|HEF-T|High-explosive fragmentation tracer}}{{-}}{{Annotation|HEF-I|High-explosive fragmentation incendiary}}{{-}}{{Annotation|AP-T|Armour-piercing tracer}}<br />
<br />
* 20 mm HE: {{Annotation|HEF-T|High-explosive fragmentation tracer}}{{-}}{{Annotation|HEF-I|High-explosive fragmentation incendiary}}{{-}}{{Annotation|AP-T|Armour-piercing tracer}}{{-}}{{Annotation|HEF-I|High-explosive fragmentation incendiary}}<br />
<br />
* 20 mm AP: {{Annotation|AP-T|Armour-piercing tracer}}{{-}}{{Annotation|AP-T|Armour-piercing tracer}}{{-}}{{Annotation|AP-T|Armour-piercing tracer}}{{-}}{{Annotation|HEF-I|High-explosive fragmentation incendiary}}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="7" | Penetration statistics (belt)<br />
|-<br />
! rowspan="2" data-sort-type="text" | Belt<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| Universal || 35 || 33 || 26 || 21 || 18 || 15<br />
|-<br />
| 20 mm HE || 35 || 33 || 26 || 21 || 18 || 15<br />
|-<br />
| 20 mm AP || 35 || 33 || 26 || 21 || 18 || 15<br />
|-<br />
|}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="8" | Penetration statistics (shell)<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! rowspan="2" | Type of<br>warhead<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| HEF-T || {{Annotation|HEF-T|High-explosive fragmentation tracer}} || 2 || 2 || 2 || 2 || 2 || 2<br />
|-<br />
| AP-T || {{Annotation|AP-T|Armour-piercing tracer}} || 35 || 33 || 26 || 21 || 18 || 15<br />
|-<br />
| HEF-I || {{Annotation|HEF-I|High-explosive fragmentation incendiary}} || 2 || 2 || 2 || 2 || 2 || 2<br />
|-<br />
|}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="10" | Shell details<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! rowspan="2" | Type of<br>warhead<br />
! rowspan="2" | Velocity<br>(m/s)<br />
! rowspan="2" | Projectile<br>Mass (kg)<br />
! rowspan="2" | Fuse delay<br>(m)<br />
! rowspan="2" | Fuse sensitivity<br>(mm)<br />
! rowspan="2" | Explosive Mass<br>(TNT equivalent) (g)<br />
! colspan="3" | Ricochet<br />
|-<br />
! 0% !! 50% !! 100%<br />
|-<br />
| HEF-T || {{Annotation|HEF-T|High-explosive fragmentation tracer}} || 844 || 0.12 || N/A || 0.1 || 6.57 || 79° || 80° || 81°<br />
|-<br />
| AP-T || {{Annotation|AP-T|Armour-piercing tracer}} || 844 || 0.12 || N/A || N/A || N/A || 47° || 60° || 65°<br />
|-<br />
| HEF-I || {{Annotation|HEF-I|High-explosive fragmentation incendiary}} || 838 || 0.12 || N/A || 0.1 || 11.17 || 79° || 80° || 81°<br />
|-<br />
|}<br />
<br />
The best ammunition for general use is the HE belt, due to it having the highest ratio of HE rounds to AP rounds, making it the most effective against both aircraft and the vast majority of surface targets. Because of this, the HE belt should be the main ammunition once it is unlocked. Additionally, the AP belt, with its higher amount of AP rounds, is better for dealing with armoured targets, so take a decent amount of these as well for specialized usage.<br />
<br />
=== Secondary armament ===<br />
{{Specs-Fleet-Secondary}}<br />
<!-- ''Some ships are fitted with weapons of various calibres. Secondary armaments are defined as weapons chosen with the control <code>Select secondary weapon</code>. Evaluate the secondary armaments and give advice on how to use them. Describe the ammunition available for the secondary armament. Provide recommendations on how to use them and which ammunition to choose. Remember that any anti-air armament, even heavy calibre weapons, belong in the next section. If there is no secondary armament, remove this section.'' --><br />
{{main|Vickers Mk.V (12.7 mm)}}<br />
<br />
The secondary armament consists of two 12.7 mm Vickers Mk.V machineguns in a twin mount aft. There are 5,200 rounds of ammunition available for it, 2,600 rounds per gun. Stock, the mount can traverse horizontally and vertically at a rate of 64°/s; with the "Auxiliary Armament Targeting" modification installed, this is increased to 75°/s. Each gun has a belt capacity of 200 rounds and a cyclic rate of fire of about 600 rounds/min, though the gun on the gunner's right side fires slightly faster, around 685 rounds/min. With a stock crew, the guns can be reloaded in 13 seconds; with an aced crew, they can be reloaded in 10 seconds.<br />
<br />
{| class="wikitable" style="text-align:center" width="25%"<br />
! colspan="2" | Secondary armament guidance<br />
|-<br />
! Horizontal !! Vertical<br />
|-<br />
| ±180° || -10°/+70°<br />
|-<br />
|}<br />
<br />
There are three ammunition types available:<br />
<br />
* Universal: {{Annotation|T|Tracer}}{{-}}{{Annotation|AP|Armour-piercing}}{{-}}{{Annotation|I|Incendiary}}<br />
<br />
* 12.7 mm I: {{Annotation|T|Tracer}}{{-}}{{Annotation|I|Incendiary}}{{-}}{{Annotation|I|Incendiary}}{{-}}{{Annotation|I|Incendiary}}{{-}}{{Annotation|I|Incendiary}}<br />
<br />
* 12.7 mm API: {{Annotation|T|Tracer}}{{-}}{{Annotation|AP|Armour-piercing}}{{-}}{{Annotation|I|Incendiary}}{{-}}{{Annotation|AP|Armour-piercing}}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="7" | Penetration statistics (belt)<br />
|-<br />
! rowspan="2" data-sort-type="text" | Belt<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| Universal || 24 || 24 || 21 || 18 || 16 || 15<br />
|-<br />
| 12.7 mm I || 20 || 19 || 16 || 14 || 12 || 11<br />
|-<br />
| 12.7 mm API || 24 || 24 || 21 || 18 || 16 || 15<br />
|-<br />
|}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="8" | Penetration statistics (shell)<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! rowspan="2" | Type of<br>warhead<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| T || {{Annotation|T|Tracer}} || 20 || 19 || 16 || 14 || 12 || 11<br />
|-<br />
| AP || {{Annotation|AP|Armour-piercing}} || 24 || 24 || 21 || 18 || 16 || 15<br />
|-<br />
| I || {{Annotation|I|Incendiary}} || 3 || 2 || 2 || 2 || 2 || 2<br />
|-<br />
|}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="10" | Shell details<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! rowspan="2" | Type of<br>warhead<br />
! rowspan="2" | Velocity<br>(m/s)<br />
! rowspan="2" | Projectile<br>Mass (kg)<br />
! rowspan="2" | Fuse delay<br>(m)<br />
! rowspan="2" | Fuse sensitivity<br>(mm)<br />
! rowspan="2" | Explosive Mass<br>(TNT equivalent) (g)<br />
! colspan="3" | Ricochet<br />
|-<br />
! 0% !! 50% !! 100%<br />
|-<br />
| T || {{Annotation|T|Tracer}} || 753 || 0.04 || N/A || N/A || N/A || 47° || 56° || 65°<br />
|-<br />
| AP || {{Annotation|AP|Armour-piercing}} || 753 || 0.05 || N/A || N/A || N/A || 47° || 56° || 65°<br />
|-<br />
| I || {{Annotation|I|Incendiary}} || 753 || 0.04 || N/A || 0.1 || 1.8 || 47° || 56° || 65°<br />
|-<br />
|}<br />
<br />
Of the belts, the I belt has a noticeably higher damage output than both the Universal and API belts, both of which are about the same in terms of damage. This is because it has the highest concentration of incendiary rounds, which are the only ones with any high-explosive filler. However, because it lacks any armour-piercing rounds, the I belt has slightly less armour penetration than the other two belts. In general, though, any armour that can stop the incendiary round will also be able to stop the armour-piercing round. For the most effectiveness, take only the I belt once unlocked, and switch the primary 20 mm/70 Oerlikon Mk.II cannon to deal with armoured targets.<br />
<br />
=== Additional armament ===<br />
{{Specs-Fleet-Additional}}<br />
<!-- ''Describe the available additional armaments of the ship: depth charges, mines, torpedoes. Talk about their positions, available ammunition and launch features such as dead zones of torpedoes. If there is no additional armament, remove this section.'' --><br />
{{main|Mk.VIII (533 mm)|Mk.VII depth charge}}<br />
<br />
MTB Vosper(2) has four possible loadouts:<br />
<br />
# 2x Mk.VIII torpedo<br />
# 4x Mk.VII depth charge<br />
# 2x Mk.VIII torpedo, 4x Mk.VII depth charge<br />
# Without load<br />
<br />
'''Torpedoes'''<br />
<br />
MTB Vosper(2) can carry two 533 mm Mk.VIII torpedoes. The torpedo tubes are located on either side of the bridge, pointing forwards with the nose angled outwards.<br />
<br />
{| class="wikitable" style="text-align:center" width="100%"<br />
! colspan="9" | Torpedo characteristics<br />
|-<br />
! Torpedo Mode !! Mass (kg) !! Maximum speed in water (km/h) !! Travel distance (km) !! Depth stroke (m) !! Arming distance (m) !! Explosive type !! Explosive mass (kg) !! TNT equivalent (kg)<br />
|-<br />
| {{Annotation|No|'Torpedo Mode' modification uninstalled}} || 1566 || 84 || 4.57 || 1 || 50 || TNT || 327 || 327<br />
|-<br />
| {{Annotation|Yes|'Torpedo Mode' modification installed}} || 1566 || 76 || 6.40 || 1 || 50 || TNT || 327 || 327<br />
|}<br />
<br />
The Torpedo Mode modification is available as a rank IV modification. Installing it will give the following changes:<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="2" | Torpedo mode specification changes<br />
|-<br />
! Max Distance (m)<br />
! Max Speed (m/s)<br />
|-<br />
| +1830 || -2<br />
|-<br />
|}<br />
<br />
It's best to always keep Torpedo Mode uninstalled. The maximum speed of a torpedo is much more valuable in coastal battles than its maximum range. Coastal fleet maps are also small enough that the decreased range with Torpedo Mode installed isn't much of an issue.<br />
<br />
In RB, always set the depth stroke to the minimum 1 m setting, since most vessels that MTB Vosper(2) can face will not have a deep enough draught to fuse the torpedo at a depth stroke setting of 4 m. In AB, depth stroke is automatically set to the most optimal setting.<br />
<br />
When using torpedoes, be aware that unless they are already launched, the torpedoes have a very high chance to detonate when shot at, instantly destroying the boat. To avoid this, fire the torpedoes immediately after spawning in—as well as after any subsequent reloads in AB—or simply don't take them at all. Torpedoes are a situational weapon, so it's largely down to personal preference whether or not to take them. <br />
<br />
'''Depth Charges'''<br />
<br />
[[File:{{PAGENAME}}_DC_Order.png|thumb|Mk.VII depth charges numbered according to their drop order.]]<br />
<br />
The Mk.VII depth charges are carried around the bridge area, three on each side. They are dropped one at a time in the following order:<br />
<br />
# Port, foremost<br />
# Starboard, foremost<br />
# Port, aftmost<br />
# Starboard, aftmost<br />
<br />
Before spawning, the detonation time delay can be set anywhere between 3 seconds and 10 seconds.<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="7" | Depth charge characteristics<br />
|-<br />
! Mass (kg)<br />
! Explosive type<br />
! Explosive mass (kg)<br />
! TNT equivalent (kg)<br />
! HE armour penetration (mm)<br />
! Armoured vehicle destruction radius (m)<br />
! Fragment dispersion radius (m)<br />
|-<br />
| 196 || TNT || 130 || 130 || 101 || 8 || 122 <br />
|}<br />
<br />
There is almost no practical reason to use depth charges on any naval vessel in the game. Although they usually result in a one-hit kill if used properly, they are extremely situational, requiring the player to close to point-blank ranges to even use them. In almost every case, anytime a depth charge could be used, the guns or torpedoes can be used instead to greater effect. In fact, depth charges tend to actually be a liability in battle, since they essentially act as exposed ammo racks before they're dropped. Like torpedoes, they have a relatively high chance to detonate when shot at, instantly destroying the boat.<br />
<br />
Despite this, some success can be had in dropping them either next to or in front of a large, slow target. If dropping them next to the target, remember the depth charge drop order, since it's most likely that only the depth charges dropped on the side closest to the enemy will deal any damage. If dropping in front of the target, rush in from the sides as quickly as possible and drop them all at once directly in front of the target. For both cases, set the depth charge time delay to the minimum 3 seconds, since any higher time delay will only allow the depth charge to sink further away from the target, giving them more time to move out of the way. Again, using depth charges is extremely situational, and they will only be a liability the vast majority of the time, so take them at your own discretion.<br />
<br />
== Usage in battles ==<br />
<!-- ''Describe the technique of using this ship, the characteristics of her use in a team and tips on strategy. Abstain from writing an entire guide – don't try to provide a single point of view, but give the reader food for thought. Talk about the most dangerous opponents for this vehicle and provide recommendations on fighting them. If necessary, note the specifics of playing with this vehicle in various modes (AB, RB, SB).'' --><br />
<br />
Between the primary and secondary armaments, the secondary twin 12.7 Vickers Mk.V machine guns are actually much more effective than the primary single 20 mm/70 Oerlikon Mk.II. Using 12.7 mm I belt, the two machine guns together have a much greater damage output than the cannon, and with their larger belt capacity, they are also able to sustain fire for much longer periods of time before needing to reload. However, this does come at the cost of a longer reload and the fact that they are mounted aft, preventing them from firing in a ~46° arc forwards. Conveniently, the disadvantages of the Vickers Mk.V machine guns are the advantages of the Oerlikon Mk.II cannon, and vice versa: the Oerlikon Mk.II is mounted on the bow and has a quicker reload, but it is weaker in terms of damage. The primary and secondary armament nicely complement each other, and to fully make use of MTB Vosper(2), both must be used together.<br />
<br />
Since the Vickers Mk.V machine guns have the best damage output, switch to manual control of the secondaries and use these as the primary weapon. During their reloads, or in case they get knocked out, switch back to the Oerlikon Mk.II to continue the fight. The main disadvantage of heavy machine guns like the Vickers Mk.V is that they generally have a very long reload. By switching back to the Oerlikon Mk.II during reloads, MTB Vosper(2) can mostly circumvent this problem, allowing it to continue sustaining fire through about 70-80% of the reload of the machine guns, depending on crew skills. With this to fall back on, MTB Vosper(2) can afford to be more aggressive than most other vessels at this tier. However, to fully make use of this, the Oerlikon Mk.II should have a full magazine at all times, which can only be guaranteed by disabling the AI gunners. While this does greatly increase surface capabilities, it leaves MTB Vosper(2) open to aerial attacks, so always look out for enemy aircraft, and reenable the AI gunners to target aircraft if necessary. When targeting aircraft, the Vickers Mk.V machine guns tend to be more effective than the Oerlikon Mk.II due to their volume of fire, so in this case, switch back to the cannon to give control of the machine guns to the AI gunners.<br />
<br />
An alternative to this is to be proactive with the reloads like with other vessels. After engagements, if there isn't much ammunition left in the Vickers Mk.V magazines—less than about 100 rounds between both guns—retreat to cover, and then fire off any remaining ammunition to reload in safety. When playing like this, the Oerlikon Mk.II is more like a last resort weapon to switch to in a pinch. Since you're not constantly relying on it, it doesn't need to be full at all times, which frees it up for use by the AI gunners in combat. While this is certainly the safest approach to playing MTB Vosper(2), it doesn't take advantage of its strengths as much as the first playstyle does. That said, both are effective in their own right, so it's down to personal preference which way to play. Whichever playstyle you prefer, remember to be flexible and always be prepared to switch to the other weapon.<br />
<br />
=== Pros and cons ===<br />
<!-- ''Summarise and briefly evaluate the vehicle in terms of its characteristics and combat effectiveness. Mark its pros and cons in the bulleted list. Try not to use more than 6 points for each of the characteristics. Avoid using categorical definitions such as "bad", "good" and the like - use substitutions with softer forms such as "inadequate" and "effective".'' --><br />
<br />
'''Pros:'''<br />
<br />
* Strong secondary armament: great damage output<br />
* Good manoeuvrability<br />
* Good torpedoes: above-average maximum speed and explosive charge<br />
<br />
'''Cons:'''<br />
<br />
* Long secondary armament reload<br />
<br />
== History ==<br />
<!-- ''Describe the history of the creation and combat usage of the ship in more detail than in the introduction. If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the ship and adding a block "/History" (example: <nowiki>https://wiki.warthunder.com/(Ship-name)/History</nowiki>) and add a link to it here using the <code>main</code> template. Be sure to reference text and sources by using <code><nowiki><ref></ref></nowiki></code>, as well as adding them at the end of the article with <code><nowiki><references /></nowiki></code>. This section may also include the ship's dev blog entry (if applicable) and the in-game encyclopedia description (under <code><nowiki>=== In-game description ===</nowiki></code>, also if applicable).'' --><br />
<br />
During the 1930s, the Admiralty began to reestablish the coastal boat flotillas it once commanded during the First World War. British boatbuilding company Vosper & Company competed for the contract but lost both times in 1935 and 1936, the lucrative contract to build the first coastal boats since WWI going instead to their rival, British Power Boat Company. In response to this, Vospers developed plans for a faster and more seaworthy design than that of their rivals'. In the following months, Vospers proposed their new design to the Admiralty multiple times, but ultimately, they could not secure a contract to build a prototype. Around this time, though, the Admiralty officials had unofficially suggested that future contracts would only be awarded for vessels that could surpass 40 knots in speed and that were armed with two 21-inch torpedoes as well as an assortment of light anti-aircraft guns. Additionally, it was known from previous specifications that the Admiralty wanted a vessel capable of operating in open waters in at least Force 5 winds and that was fast enough to cross the English Channel during the night. With these unofficial specifications, Vospers preemptively began development on a new vessel as a private venture at the company's own expense.<br />
<br />
Immediately, it was decided that the private venture vessel had to be larger than the existing 60 ft British Power Boat MTB in order to meet the specifications. Additionally, engines more powerful than the Napier Sea Lion engines used in the BPB design were required. With none available domestically, Vospers looked to the Asso 1000 engine by Italian manufacturer Isotta-Fraschini. Though in limited supply, the Asso 1000 was specifically designed for marine craft and provided the necessary power: 1150 bhp at 1500 rpm maximum and 950 bhp at 1660 rpm continuous. In late 1936, Vospers completed their design. It called for three Asso 1000 engines and two in-house 75 bhp auxiliary engines, the latter of which could be coupled to the outer shafts to give a total maximum power of 3600 bhp. The hull-form was a hard chine planing design and was 69½ ft in length with a displacement of about 33 tons. The prototype was laid down before the end of the year and completed in May 1937.<br />
<br />
Upon completion, the prototype underwent internal trials where she achieved a top speed of 47.8 knots unloaded and 43.7 knots loaded. Satisfied with these results, Vospers presented the prototype to the Admiralty for official trials against the 60 ft British Power Boat MTB. The prototype fared favorably, and after much deliberation, the Admiralty decided to purchase the vessel from Vospers. She was commissioned in May 1938 as MTB 102 and sent to HMS Vernon for further evaluation. Up to this point, MTB 102 had not actually been fitted with torpedoes, so during her time at HMS Vernon, many torpedo configurations were tested. These included the tried-and-true yet outdated stern projection systems, as seen on the 60 ft British Power Boat MTB and earlier WWI designs, as well as a unique arrangement of a single launcher in the stem of the hull with a reload carried internally. These all had their own issues, and none were found to be satisfactory. Ultimately, it was decided that MTB 102 should have two torpedo tubes mounted on either side of the bridge, pointed forwards with the nose angled outwards, an uncommon configuration for the time. Around this time, the gun armament had also not yet been decided, so various configurations were also experimented with, including combinations of 0.303 in and 0.50 in machine guns and a 20 mm autocannon.<br />
<br />
Impressed with MTB 102, the Admiralty placed an order for four more vessels on 15th August 1938, Vospers' first-ever Admiralty contract. These vessels, and any ordered after, all shared the same overall design as MTB 102, although with several minor changes such as the hull being lengthened to 70 ft 3¼ in. After 1940, with the entrance of Italy into the war, Isotta-Fraschini engines could no longer be obtained, and subsequent boats had to be fitted with much weaker American Hall Scott engines—only 1800 bhp total—as a stopgap measure until they could be upgraded with more powerful Packard engines, although this wasn't until 1941 as supply was limited. Of the 32 planned 70 ft Vosper MTBs, 28 were completed and are as follows:<br />
<br />
* MTBs 20-23: Ordered 15th August 1938, all were completed by December 1939. MTBs 20, 21, and 23 were sold to the Romanian Navy. MTB 22 served with the 4th MTB Flotilla. She survived to the end of the war and was sold in 1945.<br />
<br />
* MTBs 29-30: Ordered on 8th September 1938—including a Thornycroft design, MTB 28—as replacements for the three boats sold to Romania, all were completed by July 1940. Both MTB 29 and 30 served with the 4th MTB Flotilla. MTB 29 was lost in a collision with a German E-boat on 6th October 1942, and MTB 30 struck a mine and was lost on 18th December 1942.<br />
<br />
* MTBs 31-40: Ordered on 27th September 1939, six were completed by May 1941. MTBs 33, 37, 39, and 40 were bombed by German aircraft while under construction in 1940-41. The completed boats survived to the end of the war and were sold in 1945-46.<br />
<br />
* MTBs 57-66: Ordered on 26th February 1940, all were completed by April 1942. MTB 61 was stranded during an attack on 9th May 1943, and MTBs 63 and 64 were lost after collisions with friendly MTBs on 2nd April 1943. The remaining boats were sold in 1944.<br />
<br />
* MTBs 69-70: Ordered in April 1940, both were completed by June 1940 and received only two engines. Both were stationed at HMS Beehive, Felixstowe. They both survived to the end of the war and were sold in 1945-46.<br />
<br />
* MTBs 218-221: Ordered on 7th December 1940, all were completed by September 1941. MTB 218 struck a mine and was lost on 18th August 1942, and MTB 220 was sunk by German E-boats on 13th May 1942. MTBs 219 and 221 survived to the end of the war. MTB 221 was sold in 1945, and MTB 219 was transferred to the Sea Cadet Corps at Staines in 1945 and was converted to a houseboat in 1948.<br />
<br />
The 70 ft Vosper MTB design continued to receive many improvements and modifications order-to-order and would lead to the development of the 72 ft Vosper MTB and 73 ft Vosper MTB.<br />
<br />
== Media ==<br />
<!-- ''Excellent additions to the article would be video guides, screenshots from the game, and photos.'' --><br />
<br />
;'''Skins'''<br />
<br />
* [https://live.warthunder.com/feed/camouflages/?vehicleCountry=britain&vehicleType=ship&vehicleClass=torpedo_boat&vehicle=uk_mtb_vosper_2series Skins and camouflages for the {{PAGENAME}} from live.warthunder.com.]<br />
<br />
== See also ==<br />
<!-- ''Links to articles on the War Thunder Wiki that you think will be useful for the reader, for example:''<br />
* ''reference to the series of the ship;''<br />
* ''links to approximate analogues of other nations and research trees.'' --><br />
<br />
* [[MTB Vosper (Family)]]<br />
* {{Specs-Link|uk_mtb_vosper_1series}}<br />
* {{Specs-Link|it_a1_vosper}}<br />
<br />
== External links ==<br />
<!-- ''Paste links to sources and external resources, such as:''<br />
* ''topic on the official game forum;''<br />
* ''encyclopedia page on the ship;''<br />
* ''other literature.'' --><br />
<br />
* [http://cfv.org.uk/research/boat/database <nowiki>[Coastal Forces Veterans]</nowiki> Boat Database]<br />
* [http://www.ww2ships.com/britain/gb-sc-002-b.shtml <nowiki>[ww2ships.com]</nowiki> 70' Vosper Motor Torpedo Boat]<br />
* [https://www.unithistories.com/units_british/RN_MTBs.html#MTB_Boats <nowiki>[Unit Histories]</nowiki> Royal Navy Coastal Forces 1940-1945]<br />
* [http://www.naval-history.net/WW2BritishLosses3Coastal.htm <nowiki>[naval-history.net]</nowiki> British vessels lost at sea in World War 2 - MGB, MTB, SGB, ML, etc] - originally published in British Vessels Lost at Sea, 1935-45, His Majesty's Stationary Office, 1947<br />
<br />
===Bibliography===<br />
<br />
* Lambert, J., & Ross, A. (1993). ''Allied Coastal Forces of World War II Volume II: Vosper MTBs & U.S. Elcos'' (pp. 21-32). London, England: Conway Maritime Press. ISBN 0-85177-602-7.<br />
<br />
{{Britain boats}}</div>U27474208https://old-wiki.warthunder.com/index.php?title=MTB_Vosper&diff=107839MTB Vosper2021-07-29T01:42:20Z<p>U27474208: Updated hullbreak information</p>
<hr />
<div>{{About<br />
| about = British motor torpedo boat '''{{PAGENAME}}'''<br />
| usage = other versions<br />
| link = MTB Vosper (Family)<br />
}}<br />
{{Specs-Card<br />
|code=uk_mtb_vosper_1series<br />
|images={{Specs-Card-Image|GarageImage_{{PAGENAME}}.jpg}}<br />
}}<br />
<br />
== Description ==<br />
<!-- ''In the first part of the description, cover the history of the ship's creation and military application. In the second part, tell the reader about using this ship in the game. Add a screenshot: if a beginner player has a hard time remembering vehicles by name, a picture will help them identify the ship in question.'' --><br />
The '''{{Specs|name}}''' is a rank {{Specs|rank}} British motor torpedo boat {{Battle-rating}}. It was introduced in [[Update 1.83 "Masters of the Sea"]] as part of the British fleet closed beta test. With the split of the naval tech trees in [[Update "New Power"]], {{PAGENAME}} was moved to the coastal fleet tech tree.<br />
<br />
== General info ==<br />
=== Survivability and armour ===<br />
{{Specs-Fleet-Armour}}<br />
<!-- ''Talk about the vehicle's armour. Note the most well-defended and most vulnerable zones, e.g. the ammo magazine. Evaluate the composition of components and assemblies responsible for movement and manoeuvrability. Evaluate the survivability of the primary and secondary armaments separately. Don't forget to mention the size of the crew, which plays an important role in fleet mechanics. Save tips on preserving survivability for the "Usage in battles" section. If necessary, use a graphical template to show the most well-protected or most vulnerable points in the armour.'' --><br />
<br />
[[File:{{PAGENAME}}_Internals.png|thumb|{{PAGENAME}} internals (starboard). Note the ammunition storage below the bridge.]]<br />
<br />
MTB Vosper has the following armour layout:<br />
<br />
* Hull: 24 mm, wood<br />
* Superstructure: 15 mm, wood<br />
<br />
Any gun in the game will easily be able to penetrate the hull and superstructure at any range.<br />
<br />
The hull is split into three compartments. Starting from the bow and working towards the stern, the first compartment starts at the bow and ends in front of the bridge; the second ends behind the aft gun mounts, just after the fuel tanks; and the third ends at the stern. <br />
<br />
MTB Vosper can be hull-broken by any round with a large enough diameter and explosive mass. In general, this is limited to HE rounds greater with a diameter greater than or equal to 4 inches (102 mm) with an explosive mass greater than 1.5 kg. At MTB Vosper's own battle rating, there is only one gun capable of hull-breaking her:<br />
<br />
* the [[8cwt QF Mk I (114 mm)|114 mm 8cwt QF Mk I]], found on {{Specs-Link|uk_dark_class}}.<br />
<br />
There is one ammunition storage that holds ammunition for all gun mounts. It is located directly below the bridge, just above the waterline. Destroying it will instantly destroy MTB Vosper.<br />
<br />
MTB Vosper has a crew complement of 10. With a stock crew, it is knocked out when 6 crew are lost; with an aced crew, this is increased to 7. Overall, the survivability is average.<br />
<br />
=== Mobility ===<br />
{{Specs-Fleet-Mobility}}<br />
<!-- ''Write about the ship's mobility. Evaluate its power and manoeuvrability, rudder rerouting speed, stopping speed at full tilt, with its maximum forward and reverse speed.'' --><br />
<br />
{{NavalMobility<br />
|SpeedForwardStockAB = 76<br />
|SpeedBackStockAB = 27<br />
|TurnTimeStockAB = 19.42<br />
|TurnSpeedStockAB = 44<br />
<br />
|TurnTimeSpadedAB = 12.61<br />
|TurnSpeedSpadedAB = 43<br />
<br />
|SpeedForwardStockRB = 64<br />
|SpeedBackStockRB = 22<br />
|TurnTimeStockRB = 21.92<br />
|TurnSpeedStockRB = 45<br />
<br />
|TurnTimeSpadedRB = 17.83<br />
|TurnSpeedSpadedRB = 44<br />
}}<br />
<br />
MTB Vosper has a displacement of 38 tons.<br />
<br />
When moving forwards at high speeds, the bow will drift slightly to starboard without any player input. When moving backwards, the bow drifts slightly to port.<br />
<br />
=== Modifications and economy ===<br />
{{Specs-Economy}}<br />
<br />
The recommended modification research order is:<br />
<br />
# Tool Set<br />
# Fire Protection System<br />
# 7.7 mm API belt<br />
# Smokescreen<br />
# Propeller Replacement<br />
# Artillery Support<br />
<br />
After that, prioritize the rest of the seakeeping modifications first, then research the remaining modifications in whatever order you prefer.<br />
<br />
== Armament ==<br />
{{Specs-Fleet-Armaments}}<br />
=== Primary armament ===<br />
{{Specs-Fleet-Primary}}<br />
<!-- ''Provide information about the characteristics of the primary armament. Evaluate their efficacy in battle based on their reload speed, ballistics and the capacity of their shells. Add a link to the main article about the weapon: <code><nowiki>{{main|Weapon name (calibre)}}</nowiki></code>. Broadly describe the ammunition available for the primary armament, and provide recommendations on how to use it and which ammunition to choose.'' --><br />
{{main|Lewis 1916 (7.72 mm)}}<br />
<br />
[[File:Vosper1 Centre CloseUpImage.png|thumb|{{PAGENAME}} gun turret placements. The two mounts behind the bridge are staggered to not obstruct each other when firing to the sides.]]<br />
<br />
The primary armament consists of eight 7.72 mm Lewis 1916 machineguns in four twin mounts. Two of these are mounted side-by-side in front of the bridge with the other two staggered behind the bridge. There are 1,940 rounds of ammunition available for each mount, 970 rounds per gun, for a total of 7,760 rounds. Stock, the mounts can traverse horizontally and vertically at a rate of 64°/s; with the "Primary Armament Targeting" modification installed, this is increased to 75°/s. Each gun has a magazine capacity of 97 rounds and a cyclic rate of fire of around 550 rounds/min. With a stock crew, the guns can be reloaded in 10.4 seconds; with an aced crew, they can be reloaded in 8 seconds.<br />
<br />
{{Notice|Turrets are named sequentially, clockwise, starting at the bow}}<br />
<br />
{| class="wikitable" style="text-align:center" width="100%"<br />
! colspan="8" | Primary armament guidance<br />
|-<br />
! colspan="2" rowspan="1" | No.1 Turret (fore-starboard)<br />
! colspan="2" rowspan="1" | No.2 Turret (aft-starboard)<br />
! colspan="2" rowspan="1" | No.3 Turret (aft-port)<br />
! colspan="2" rowspan="1" | No.4 Turret (fore-port)<br />
|-<br />
! Horizontal !! Vertical !! Horizontal !! Vertical !! Horizontal !! Vertical !! Horizontal !! Vertical<br />
|-<br />
| ±180° || -7°/+70° || ±180° || -10°/+70° || ±180° || -10°/+70° || ±180° || -7°/+70°<br />
|-<br />
|}<br />
<br />
There are three ammunition types available:<br />
<br />
* Universal: {{Annotation|AP|Armour-piercing}}{{-}}{{Annotation|T|Tracer}}{{-}}{{Annotation|AP|Armour-piercing}}{{-}}{{Annotation|T|Tracer}}<br />
<br />
* 7.7 mm AP belt: {{Annotation|AP|Armour-piercing}}{{-}}{{Annotation|AP|Armour-piercing}}{{-}}{{Annotation|AP|Armour-piercing}}{{-}}{{Annotation|T|Tracer}}<br />
<br />
* 7.7 mm API belt: {{Annotation|IT|Incendiary tracer}}{{-}}{{Annotation|IT|Incendiary tracer}}{{-}}{{Annotation|IT|Incendiary tracer}}{{-}}{{Annotation|AP|Armour-piercing}}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="7" | Penetration statistics (belt)<br />
|-<br />
! rowspan="2" data-sort-type="text" | Belt<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| Universal || 10 || 9 || 8 || 7 || 6 || 5<br />
|-<br />
| 7.7 mm AP belt || 10 || 9 || 8 || 7 || 6 || 5<br />
|-<br />
| 7.7 mm API belt || 10 || 9 || 8 || 7 || 6 || 5<br />
|-<br />
|}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="8" | Penetration statistics (shell)<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! rowspan="2" | Type of<br>warhead<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| AP || {{Annotation|AP|Armour-piercing}} || 10 || 9 || 8 || 7 || 6 || 5<br />
|-<br />
| T || {{Annotation|T|Tracer}} || 9 || 8 || 7 || 6 || 5 || 4<br />
|-<br />
| IT || {{Annotation|IT|Incendiary tracer}} || 10 || 9 || 7 || 6 || 5 || 5<br />
|-<br />
|}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="10" | Shell details<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! rowspan="2" | Type of<br>warhead<br />
! rowspan="2" | Velocity<br>(m/s)<br />
! rowspan="2" | Projectile<br>Mass (kg)<br />
! rowspan="2" | Fuse delay<br>(m)<br />
! rowspan="2" | Fuse sensitivity<br>(mm)<br />
! rowspan="2" | Explosive Mass<br>(TNT equivalent) (g)<br />
! colspan="3" | Ricochet<br />
|-<br />
! 0% !! 50% !! 100%<br />
|-<br />
| AP || {{Annotation|AP|Armour-piercing}} || 853 || 0.01 || N/A || N/A || N/A || 47° || 56° || 65°<br />
|-<br />
| T || {{Annotation|T|Tracer}} || 835 || 0.01 || N/A || N/A || N/A || 47° || 56° || 65°<br />
|-<br />
| IT || {{Annotation|IT|Incendiary tracer}} || 920 || 0.01 || N/A || N/A || N/A || 47° || 56° || 65°<br />
|-<br />
|}<br />
<br />
While the armour-piercing round and the the incendiary tracer round deal about the same amount of the damage, the standard tracer round deals incredibly little damage to both surface targets and aircraft. Because of this, the AP belt is a strict upgrade from the default belt. Compared to the AP rounds, the IT rounds also have a much higher muzzle velocity. Altogether, this makes the API belt the best overall, due both to its lack of standard tracer rounds and better balistic properties.<br />
<br />
=== Additional armament ===<br />
{{Specs-Fleet-Additional}}<br />
<!-- ''Describe the available additional armaments of the ship: depth charges, mines, torpedoes. Talk about their positions, available ammunition and launch features such as dead zones of torpedoes. If there is no additional armament, remove this section.'' --><br />
{{main|Mk.VIII (533 mm)}}<br />
<br />
MTB Vosper has two possible loadouts:<br />
<br />
# 2x Mk.VIII torpedo<br />
# Without load<br />
<br />
'''Torpedoes'''<br />
<br />
MTB Vosper can carry two 533 mm Mk.VIII torpedoes. The torpedo tubes are located on either side of the bridge, pointing forwards with the nose angled outwards.<br />
<br />
{| class="wikitable" style="text-align:center" width="100%"<br />
! colspan="9" | Torpedo characteristics<br />
|-<br />
! Torpedo Mode !! Mass (kg) !! Maximum speed in water (km/h) !! Travel distance (km) !! Depth stroke (m) !! Arming distance (m) !! Explosive type !! Explosive mass (kg) !! TNT equivalent (kg)<br />
|-<br />
| {{Annotation|No|'Torpedo Mode' modification uninstalled}} || 1,566 || 84 || 4.57 || 1 || 50 || TNT || 327 || 327<br />
|-<br />
| {{Annotation|Yes|'Torpedo Mode' modification installed}} || 1,566 || 76 || 6.40 || 1 || 50 || TNT || 327 || 327<br />
|}<br />
<br />
The Torpedo Mode modification is available as a rank IV modification. Installing it will give the following changes:<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="2" | Torpedo mode specification changes<br />
|-<br />
! Max Distance (m)<br />
! Max Speed (m/s)<br />
|-<br />
| +1,830 || -2<br />
|-<br />
|}<br />
<br />
It's best to always keep Torpedo Mode uninstalled. The maximum speed of a torpedo is much more valuable in coastal battles than its maximum range. Coastal fleet maps are also small enough that the decreased range with Torpedo Mode installed isn't much of an issue.<br />
<br />
In RB, always set the depth stroke to the minimum 1 m setting, since most vessels that MTB Vosper can face will not have a deep enough draught to fuse the torpedo at a depth stroke setting of 4 m. In AB, depth stroke is automatically set to the most optimal setting.<br />
<br />
When using torpedoes, be aware that unless they are already launched, the torpedoes have a very high chance to detonate when shot at, instantly destroying the boat. To avoid this, fire the torpedoes immediately after spawning in—as well as after any subsequent reloads in AB—or simply don't take them at all. Torpedoes are a situational weapon, so it's largely down to personal preference whether or not to take them. <br />
<br />
== Usage in battles ==<br />
<!-- ''Describe the technique of using this ship, the characteristics of her use in a team and tips on strategy. Abstain from writing an entire guide – don't try to provide a single point of view, but give the reader food for thought. Talk about the most dangerous opponents for this vehicle and provide recommendations on fighting them. If necessary, note the specifics of playing with this vehicle in various modes (AB, RB, SB).'' --><br />
<br />
In terms of armament, MTB Vosper is very similar to the reserve vessel of the tech tree, {{Specs-Link|uk_mtb_1series}}, the difference being in the placement of the guns. While MTB-1(1) has the eight guns split into two quadruple mounts, MTB Vosper has them in four twin mounts. With this arrangement, MTB Vosper can typically only bring four or six of her eight guns on target at once, since the mounts block each other at most angles. Although there is a small ~7.5° arc about 60° to port (between the 9 and 10 o'clock positions) where all eight guns can be used at once, it's difficult to keep targets in such a small range, so this shouldn't be relied on. Because of this, MTB Vosper is limited to only a fraction of the firepower of MTB-1(1), whose armament wasn't very good to begin with. That said, this gun arrangement does come with a few benefits, the most significant of which being the much quicker reloads, nearly half of that of MTB-1(1). Additionally, having twin mounts instead of quad mounts also makes each individual mount smaller, reducing the likelihood of losing a turret to random fire and making it less detrimental should it happen.<br />
<br />
Even with these differences, though, MTB Vosper has nearly the exact same playstyle as MTB-1(1) due to the limitations of the guns. Because of their bad damage output, always keep enemies in directions where six of the guns can fire. Similarly, because of their poor ballistic qualities, stick to close-range engagements and avoid open areas of the map wherever possible. Make use of MTB Vosper's higher top speed to rush into ambush positions behind cover that MTB-1(1) would be too slow to reach. From there, support your team by targeting distracted enemies. For larger opponents such as sub-chasers, try not to draw attention to yourself with gunfire. Instead, either use the torpedoes, or simply mark them on the map for your team, call artillery, and then retreat behind cover. <br />
<br />
Despite the reloads being shorter than that of MTB-1(1), they are still quite long overall, so it's still a good idea to be proactive with the reloads. Always be aware of how much ammunition is left in the guns and fire off any remaining ammunition if there isn't much left after engagements, retreating to do so if necessary. Like MTB-1(1), a good time to do this with MTB Vosper is when the magazines are about half empty, though it may not always be obvious when that is just from the ammunition counter, since not all of the guns can fire at once. The guns can only sustain fire for about 10 seconds before needing to reload, so make use of that to determine the amount of remaining ammunition by mentally keeping track of how long you've fired the guns. Lastly, like MTB-1(1), it should be noted that MTB Vosper can only carry enough ammunition for ten reloads at most, though again just like MTB-1(1), MTB Vosper also doesn't tend to survive long enough for this to become an issue, so keep that in mind but don't worry too much about it.<br />
<br />
=== Pros and cons ===<br />
<!-- ''Summarise and briefly evaluate the vehicle in terms of its characteristics and combat effectiveness. Mark its pros and cons in the bulleted list. Try not to use more than 6 points for each of the characteristics. Avoid using categorical definitions such as "bad", "good" and the like - use substitutions with softer forms such as "inadequate" and "effective".'' --><br />
<br />
'''Pros:'''<br />
<br />
* Good manoeuvrability<br />
* Good torpedoes: above-average maximum speed and explosive mass<br />
<br />
'''Cons:'''<br />
<br />
* Primary armament consists only of low-calibre machineguns: very low overall damage output<br />
* Not all gun mounts can be brought on target at once, one or more of the turrets will be blocked at most angles<br />
<br />
== History ==<br />
<!-- ''Describe the history of the creation and combat usage of the ship in more detail than in the introduction. If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the ship and adding a block "/History" (example: <nowiki>https://wiki.warthunder.com/(Ship-name)/History</nowiki>) and add a link to it here using the <code>main</code> template. Be sure to reference text and sources by using <code><nowiki><ref></ref></nowiki></code>, as well as adding them at the end of the article with <code><nowiki><references /></nowiki></code>. This section may also include the ship's dev blog entry (if applicable) and the in-game encyclopedia description (under <code><nowiki>=== In-game description ===</nowiki></code>, also if applicable).'' --><br />
<br />
During the 1930s, the Admiralty began to reestablish the coastal boat flotillas it once commanded during the First World War. British boatbuilding company Vosper & Company competed for the contract but lost both times in 1935 and 1936, the lucrative contract to build the first coastal boats since WWI going instead to their rival, British Power Boat Company. In response to this, Vospers developed plans for a faster and more seaworthy design than that of their rivals'. In the following months, Vospers proposed their new design to the Admiralty multiple times, but ultimately, they could not secure a contract to build a prototype. Around this time, though, the Admiralty officials had unofficially suggested that future contracts would only be awarded for vessels that could surpass 40 knots in speed and that were armed with two 21-inch torpedoes as well as an assortment of light anti-aircraft guns. Additionally, it was known from previous specifications that the Admiralty wanted a vessel capable of operating in open waters in at least Force 5 winds and that was fast enough to cross the English Channel during the night. With these unofficial specifications, Vospers preemptively began development on a new vessel as a private venture at the company's own expense.<br />
<br />
Immediately, it was decided that the private venture vessel had to be larger than the existing 60 ft British Power Boat MTB in order to meet the specifications. Additionally, engines more powerful than the Napier Sea Lion engines used in the BPB design were required. With none available domestically, Vospers looked to the Asso 1000 engine by Italian manufacturer Isotta-Fraschini. Though in limited supply, the Asso 1000 was specifically designed for marine craft and provided the necessary power: 1150 bhp at 1500 rpm maximum and 950 bhp at 1660 rpm continuous. In late 1936, Vospers completed their design. It called for three Asso 1000 engines and two in-house 75 bhp auxiliary engines, the latter of which could be coupled to the outer shafts to give a total maximum power of 3600 bhp. The hull-form was a hard chine planing design and was 69½ ft in length with a displacement of about 33 tons. The prototype was laid down before the end of the year and completed in May 1937.<br />
<br />
Upon completion, the prototype underwent internal trials where she achieved a top speed of 47.8 knots unloaded and 43.7 knots loaded. Satisfied with these results, Vospers presented the prototype to the Admiralty for official trials against the 60 ft British Power Boat MTB. The prototype fared favorably, and after much deliberation, the Admiralty decided to purchase the vessel from Vospers. She was commissioned in May 1938 as MTB 102 and sent to HMS Vernon for further evaluation. Up to this point, MTB 102 had not actually been fitted with torpedoes, so during her time at HMS Vernon, many torpedo configurations were tested. These included the tried-and-true yet outdated stern projection systems, as seen on the 60 ft British Power Boat MTB and earlier WWI designs, as well as a unique arrangement of a single launcher in the stem of the hull with a reload carried internally. These all had their own issues, and none were found to be satisfactory. Ultimately, it was decided that MTB 102 should have two torpedo tubes mounted on either side of the bridge, pointed forwards with the nose angled outwards, an uncommon configuration for the time. Around this time, the gun armament had also not yet been decided, so various configurations were also experimented with, including combinations of 0.303 in and 0.50 in machine guns and a 20 mm autocannon.<br />
<br />
Impressed with MTB 102, the Admiralty placed an order for four more vessels on 15th August 1938, Vospers' first-ever Admiralty contract. These vessels, and any ordered after, all shared the same overall design as MTB 102, although with several minor changes such as the hull being lengthened to 70 ft 3¼ in. After 1940, with the entrance of Italy into the war, Isotta-Fraschini engines could no longer be obtained, and subsequent boats had to be fitted with much weaker American Hall Scott engines—only 1800 bhp total—as a stopgap measure until they could be upgraded with more powerful Packard engines, although this wasn't until 1941 as supply was limited. Of the 32 planned 70 ft Vosper MTBs, 28 were completed and are as follows:<br />
<br />
* MTBs 20-23: Ordered 15th August 1938, all were completed by December 1939. MTBs 20, 21, and 23 were sold to the Romanian Navy. MTB 22 served with the 4th MTB Flotilla. She survived to the end of the war and was sold in 1945.<br />
<br />
* MTBs 29-30: Ordered on 8th September 1938—including a Thornycroft design, MTB 28—as replacements for the three boats sold to Romania, all were completed by July 1940. Both MTB 29 and 30 served with the 4th MTB Flotilla. MTB 29 was lost in a collision with a German E-boat on 6th October 1942, and MTB 30 struck a mine and was lost on 18th December 1942.<br />
<br />
* MTBs 31-40: Ordered on 27th September 1939, six were completed by May 1941. MTBs 33, 37, 39, and 40 were bombed by German aircraft while under construction in 1940-41. The completed boats survived to the end of the war and were sold in 1945-46.<br />
<br />
* MTBs 57-66: Ordered on 26th February 1940, all were completed by April 1942. MTB 61 was stranded during an attack on 9th May 1943, and MTBs 63 and 64 were lost after collisions with friendly MTBs on 2nd April 1943. The remaining boats were sold in 1944.<br />
<br />
* MTBs 69-70: Ordered in April 1940, both were completed by June 1940 and received only two engines. Both were stationed at HMS Beehive, Felixstowe. They both survived to the end of the war and were sold in 1945-46.<br />
<br />
* MTBs 218-221: Ordered on 7th December 1940, all were completed by September 1941. MTB 218 struck a mine and was lost on 18th August 1942, and MTB 220 was sunk by German E-boats on 13th May 1942. MTBs 219 and 221 survived to the end of the war. MTB 221 was sold in 1945, and MTB 219 was transferred to the Sea Cadet Corps at Staines in 1945 and was converted to a houseboat in 1948.<br />
<br />
The 70 ft Vosper MTB design continued to receive many improvements and modifications order-to-order and would lead to the development of the 72 ft Vosper MTB and 73 ft Vosper MTB.<br />
<br />
== Media ==<br />
<!-- ''Excellent additions to the article would be video guides, screenshots from the game, and photos.'' --><br />
<br />
;'''Skins'''<br />
* [https://live.warthunder.com/feed/camouflages/?vehicleCountry=britain&vehicleType=ship&vehicleClass=torpedo_boat&vehicle=uk_mtb_vosper_1series Skins and camouflages for the {{PAGENAME}} from live.warthunder.com.]<br />
<br />
== See also ==<br />
<!-- ''Links to articles on the War Thunder Wiki that you think will be useful for the reader, for example:''<br />
* ''reference to the series of the ship;''<br />
* ''links to approximate analogues of other nations and research trees.'' --><br />
<br />
* [[MTB Vosper (Family)]]<br />
* {{Specs-Link|uk_mtb_vosper_2series}}<br />
* {{Specs-Link|it_a1_vosper}}<br />
* {{Specs-Link|uk_mtb_1series}}<br />
<br />
== External links ==<br />
<!-- ''Paste links to sources and external resources, such as:''<br />
* ''topic on the official game forum;''<br />
* ''other literature.'' --><br />
<br />
* [http://cfv.org.uk/research/boat/database <nowiki>[Coastal Forces Veterans]</nowiki> Boat Database]<br />
* [http://www.ww2ships.com/britain/gb-sc-002-b.shtml <nowiki>[ww2ships.com]</nowiki> 70' Vosper Motor Torpedo Boat]<br />
* [https://www.unithistories.com/units_british/RN_MTBs.html#MTB_Boats <nowiki>[Unit Histories]</nowiki> Royal Navy Coastal Forces 1940-1945]<br />
* [http://www.naval-history.net/WW2BritishLosses3Coastal.htm <nowiki>[naval-history.net]</nowiki> British vessels lost at sea in World War 2 - MGB, MTB, SGB, ML, etc] - originally published in British Vessels Lost at Sea, 1935-45, His Majesty's Stationary Office, 1947<br />
<br />
===Bibliography===<br />
<br />
* Lambert, J., & Ross, A. (1993). ''Allied Coastal Forces of World War II Volume II: Vosper MTBs & U.S. Elcos'' (pp. 21-32). London, England: Conway Maritime Press. ISBN 0-85177-602-7.<br />
<br />
{{Britain boats}}</div>U27474208https://old-wiki.warthunder.com/index.php?title=MTB-1(2)&diff=107838MTB-1(2)2021-07-29T01:40:30Z<p>U27474208: Updated hullbreak information</p>
<hr />
<div>{{About<br />
| about = British motor torpedo boat '''{{PAGENAME}}'''<br />
| usage = other versions<br />
| link = MTB-1 (Family)<br />
}}<br />
{{Specs-Card<br />
|code=uk_mtb_2series<br />
|images={{Specs-Card-Image|GarageImage_{{PAGENAME}}.jpg}}<br />
}}<br />
<br />
== Description ==<br />
<!-- ''In the first part of the description, cover the history of the ship's creation and military application. In the second part, tell the reader about using this ship in the game. Add a screenshot: if a beginner player has a hard time remembering vehicles by name, a picture will help them identify the ship in question.'' --><br />
The '''{{Specs|name}}''' is a premium rank {{Specs|rank}} British motor torpedo boat {{Battle-rating}}. It was introduced in [[Update 1.85 "Supersonic"]]. With the split of the naval tech trees in [[Update "New Power"]], {{PAGENAME}} was moved to the coastal fleet tech tree.<br />
<br />
The MTB-1(2) is as a premium variant of {{Specs-Link|uk_mtb_1series}}, the reserve vehicle of the British coastal fleet tech tree. Largely similar to MTB-1(1), MTB-1(2) differs in the amount of depth charges that she can carry as well as the placement of the gun mounts, the latter being particularly important as the better firing angles gives MTB-1(2) some extra versatility in combat.<br />
<br />
== General info ==<br />
=== Survivability and armour ===<br />
{{Specs-Fleet-Armour}}<br />
<!-- ''Talk about the vehicle's armour. Note the most well-defended and most vulnerable zones, e.g. the ammo magazine. Evaluate the composition of components and assemblies responsible for movement and manoeuvrability. Evaluate the survivability of the primary and secondary armaments separately. Don't forget to mention the size of the crew, which plays an important role in fleet mechanics. Save tips on preserving survivability for the "Usage in battles" section. If necessary, use a graphical template to show the most well-protected or most vulnerable points in the armour.'' --><br />
<br />
[[File:MTB-1_2_series_internals.png|thumb|{{PAGENAME}} internals (starboard side). Note the ammo storages just in front of the bridge.]]<br />
<br />
MTB-1(2) has the following armour layout:<br />
<br />
* Hull: 24 mm, wood<br />
* Superstructure: 2 mm, steel<br />
<br />
Any gun in the game will easily be able to penetrate the hull and superstructure at any practical range.<br />
<br />
The hull is split into three sections. Starting from the bow and working towards the stern, the first section starts at the bow and ends after the ammunition storage; the second ends just behind the bridge; and the third ends at the stern. <br />
<br />
MTB-1(2) can be hull-broken by any round with a large enough diameter and explosive mass. In general, this is limited to HE rounds greater with a diameter greater than or equal to 4 inches (102 mm) with an explosive mass greater than 1.5 kg. At MTB-1(2)'s own battle rating, there is only one gun capable of hull-breaking her:<br />
<br />
* the [[8cwt QF Mk I (114 mm)|114 mm 8cwt QF Mk I]], found on {{Specs-Link|uk_dark_class}}.<br />
<br />
There is one ammunition storage that holds ammunition for both the fore and aft gun turrets. It is located directly behind the forward gun turret just above the waterline. Destroying it will instantly destroy MTB-1(2).<br />
<br />
MTB-1(2) has a crew complement of 11. With a stock crew, it is knocked out when 7 crew are lost; with an aced crew, this is increased to 8. <br />
<br />
While MTB-1(2)'s crew complement is about average when comparing vessels of the same battle rating, her overall survivability is rather poor when compared to everything in her battle rating range. The placement of the guns does allow MTB-1(2) to bow-tank without sacrificing firepower. However, due to the distribution of the crew, bow-tanking does not increase the survivability nearly as much as it does with some other vessels, so it is not a very viable tactic with MTB-1(2). With an aced crew and no prior damage, destroying only the components possible to hit from the front — the bow section, the bridge, and both gun turrets — already eliminates enough crew to prevent MTB-1(2) from repairing. Either doing slight damage to any of the other hull sections or destroying the bridge again when it is automatically repaired is enough to knock out MTB-1(2).<br />
<br />
=== Mobility ===<br />
{{Specs-Fleet-Mobility}}<br />
<!-- ''Write about the ship's mobility. Evaluate its power and manoeuvrability, rudder rerouting speed, stopping speed at full tilt, with its maximum forward and reverse speed.'' --><br />
<br />
{{NavalMobility<br />
|SpeedForwardStockAB = 63<br />
|SpeedBackStockAB = 32<br />
|TurnTimeStockAB = 18.64<br />
|TurnSpeedStockAB = 43<br />
<br />
|TurnTimeSpadedAB = 12.67<br />
|TurnSpeedSpadedAB = 40<br />
<br />
|SpeedForwardStockRB = 53<br />
|SpeedBackStockRB = 26<br />
|TurnTimeStockRB = 20.77<br />
|TurnSpeedStockRB = 40<br />
<br />
|TurnTimeSpadedRB = 17.44<br />
|TurnSpeedSpadedRB = 43<br />
}}<br />
<br />
While her top speed is on the slower side compared to other motor torpedo boats, MTB-1(2)'s manoeuvrability is actually rather good. With a tight turning circle and a decent enough top speed, the mobility is suitable enough for most situations, although the lower top speed really hurts her potential for flanking on certain maps.<br />
<br />
MTB-1(2) has a displacement of 22.4 tons. Because of her small size and relatively low displacement, MTB-1(2) can be an unstable firing platform in rough waters.<br />
<br />
=== Modifications and economy ===<br />
{{Specs-Economy}}<br />
<br />
As a premium vehicle, all modifications are unlocked for free.<br />
<br />
== Armament ==<br />
{{Specs-Fleet-Armaments}}<br />
=== Primary armament ===<br />
{{Specs-Fleet-Primary}}<br />
<!-- ''Provide information about the characteristics of the primary armament. Evaluate their efficacy in battle based on their reload speed, ballistics and the capacity of their shells. Add a link to the main article about the weapon: <code><nowiki>{{main|Weapon name (calibre)}}</nowiki></code>. Broadly describe the ammunition available for the primary armament, and provide recommendations on how to use it and which ammunition to choose.'' --><br />
{{main|Lewis 1916 (7.72 mm)}}<br />
<br />
The primary armament consists of eight 7.72 mm Lewis 1916 machine guns in two quadruple mounts, one on the bow and one on the stern. There are 3,880 rounds of ammunition available for each mount, 970 rounds per gun, for a total of 7,760 rounds. Stock, the mounts can traverse horizontally and vertically at a rate of 64°/s; with the "Primary Armament Targeting" modification installed, this is increased to 75°/s. Each gun has a magazine capacity of 97 rounds and a cyclic rate of fire of 551 rounds/min. With a stock crew, the guns can be reloaded in 18.2 seconds; with an aced crew, they can be reloaded in 14 seconds. The 7.72 mm Lewis 1916 machine gun has an absolute maximum range of about 1.7 km against surface targets.<br />
<br />
The 7.72 mm Lewis 1916 machine guns, like other low-calibre machine guns, each individually have very poor damage outputs. With their relatively large magazine size and eight of them in total, though, MTB-1(2) is able to destroy most opponents without needing to reload, assuming that most of the shots land. This, however, comes at the cost of an incredibly long reload, the longest of any reserve vessel and one of the longest of any coastal fleet vessel in general. Because of this, it's best to always fire off any remaining ammunition after engagements to begin reloading in safety and to ensure full magazines at the start of the next engagement.<br />
<br />
{{Notice|Turrets are named sequentially, clockwise, starting at the bow}}<br />
<br />
{| class="wikitable" style="text-align:center" width="50%"<br />
! colspan="4" | Primary armament guidance<br />
|-<br />
! colspan="2" rowspan="1" | No.1 Turret (starboard)<br />
! colspan="2" rowspan="1" | No.2 Turret (port)<br />
|-<br />
! Horizontal !! Vertical !! Horizontal !! Vertical<br />
|-<br />
| ±180° || -5°/+43° || ±180° || -5°/+43°<br />
|-<br />
|}<br />
<br />
Both gun mounts are able to fire in all directions except for a ~47° arc in the direction of the opposite mount. Both gun mounts are able to fully rotate 360°.<br />
<br />
There are three ammunition types available:<br />
<br />
* Universal: {{Annotation|AP|Armour-piercing}}{{-}}{{Annotation|T|Tracer}}{{-}}{{Annotation|AP|Armour-piercing}}{{-}}{{Annotation|T|Tracer}}<br />
<br />
* 7.7 mm AP belt: {{Annotation|AP|Armour-piercing}}{{-}}{{Annotation|AP|Armour-piercing}}{{-}}{{Annotation|AP|Armour-piercing}}{{-}}{{Annotation|T|Tracer}}<br />
<br />
* 7.7 mm API belt: {{Annotation|IT|Incendiary tracer}}{{-}}{{Annotation|IT|Incendiary tracer}}{{-}}{{Annotation|IT|Incendiary tracer}}{{-}}{{Annotation|AP|Armour-piercing}}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="7" | Penetration statistics (belt)<br />
|-<br />
! rowspan="2" data-sort-type="text" | Belt<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| Universal || 10 || 9 || 8 || 7 || 6 || 5<br />
|-<br />
| 7.7 mm AP belt || 10 || 9 || 8 || 7 || 6 || 5<br />
|-<br />
| 7.7 mm API belt || 10 || 9 || 7 || 6 || 5 || 5<br />
|-<br />
|}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="8" | Penetration statistics (shell)<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! rowspan="2" | Type of<br>warhead<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| AP || {{Annotation|AP|Armour-piercing}} || 10 || 9 || 8 || 7 || 6 || 5<br />
|-<br />
| T || {{Annotation|T|Tracer}} || 9 || 8 || 7 || 6 || 5 || 4<br />
|-<br />
| IT || {{Annotation|IT|Incendiary tracer}} || 10 || 9 || 7 || 6 || 5 || 5<br />
|-<br />
|}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="10" | Shell details<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! rowspan="2" | Type of<br>warhead<br />
! rowspan="2" | Velocity<br>(m/s)<br />
! rowspan="2" | Projectile<br>Mass (kg)<br />
! rowspan="2" | Fuse delay<br>(m)<br />
! rowspan="2" | Fuse sensitivity<br>(mm)<br />
! rowspan="2" | Explosive Mass<br>(TNT equivalent) (g)<br />
! colspan="3" | Ricochet<br />
|-<br />
! 0% !! 50% !! 100%<br />
|-<br />
| AP || {{Annotation|AP|Armour-piercing}} || 853 || 0.01 || N/A || N/A || N/A || 47° || 56° || 65°<br />
|-<br />
| T || {{Annotation|T|Tracer}} || 835 || 0.01 || N/A || N/A || N/A || 47° || 56° || 65°<br />
|-<br />
| IT || {{Annotation|IT|Incendiary tracer}} || 920 || 0.01 || N/A || N/A || N/A || 47° || 56° || 65°<br />
|-<br />
|}<br />
<br />
While the armour-piercing round and the the incendiary tracer round deal about the same amount of the damage, the standard tracer round deals incredibly little damage to both surface targets and aircraft. Because of this, the AP belt is a strict upgrade from the default belt. Compared to the AP rounds, the IT rounds also have a much higher muzzle velocity. Altogether, this makes the API belt the best overall, due both to its lack of standard tracer rounds and better balistic properties.<br />
<br />
=== Additional armament ===<br />
{{Specs-Fleet-Additional}}<br />
<!-- ''Describe the available additional armaments of the ship: depth charges, mines, torpedoes. Talk about their positions, available ammunition and launch features such as dead zones of torpedoes. If there is no additional armament, remove this section.'' --><br />
{{main|18 inch Mark XII (450 mm)|Mk.VII depth charge}}<br />
<br />
MTB-1(2) can be outfitted with the following:<br />
<br />
# 2 x Mk.XII torpedo<br />
# 6 x Mk.VII depth charge<br />
# 2 x Mk.XII torpedo, 6 x Mk.VII depth charge<br />
# Without load<br />
<br />
'''Torpedoes'''<br />
<br />
MTB-1(2) can carry two 18 inch Mark XII torpedoes. These are carried internally in the aft of the boat and are launched through the transom tail first, i.e. facing forwards.<br />
<br />
{| class="wikitable" style="text-align:center" width="100%"<br />
! colspan="9" | Torpedo characteristics<br />
|-<br />
! Torpedo Mode !! Mass (kg) !! Maximum speed in water (km/h) !! Travel distance (km) !! Depth stroke (m) !! Arming distance (m) !! Explosive type !! Explosive mass (kg) !! TNT equivalent (kg)<br />
|-<br />
| {{Annotation|No|'Torpedo Mode' modification uninstalled}} || 702 || 50 || 3.20 || 1 || 50 || TNT || 176 || 176<br />
|-<br />
| {{Annotation|Yes|'Torpedo Mode' modification installed}} || 702 || 74 || 1.37 || 1 || 50 || TNT || 176 || 176<br />
|}<br />
<br />
The 18-inch Mk.XII is fairly average in terms of maximum speed, though it has a rather short maximum range and small explosive mass compared to other torpedoes. Still, the range is good enough for coastal maps, and a hit with the Mk.XII torpedo is more than enough to destroy any boat. <br />
<br />
The Torpedo Mode modification is available as a rank IV modification. Installing it will give the following changes:<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="2" | Torpedo mode specification changes<br />
|-<br />
! Max Distance (m)<br />
! Max Speed (m/s)<br />
|-<br />
| -1829|| +7<br />
|-<br />
|}<br />
<br />
Since it's unlocked from the start, it's best to always keep Torpedo Mode installed. The maximum speed of a torpedo is more valuable in coastal battles than its maximum range. Coastal fleet maps are also small enough that the decreased range with Torpedo Mode installed isn't much of an issue. Note, though, that the Torpedo Mode modification on MTB-1(2) has the opposite effect compared to most other vessels. Typically, the maximum range is increased at the cost of speed.<br />
<br />
In RB, always set the depth stroke to the minimum 1 m setting. This is because many vessels that MTB-1(2) can face will not have a deep enough draught to fuse the torpedo at a depth stroke setting of 4 m. In AB, depth stroke is automatically set to the most optimal setting.<br />
<br />
When using torpedoes, be aware that unless they are already launched, the torpedoes be shot at and destroyed. Upon being destroyed, there is relatively high chance for them to detonate, instantly destroying the boat. To avoid this, fire the torpedoes early on in battle — as well as after any subsequent reloads in AB — or simply don't take them at all. Torpedoes are a situational weapon, so it's largely down to personal preference whether or not to take them.<br />
<br />
'''Depth Charges'''<br />
<br />
[[File:{{PAGENAME}}_DC_Order.png|thumb|Mk.VII depth charges numbered according to their drop order.]]<br />
<br />
The Mk.VII depth charges are carried around the bridge area, three on each side. They are dropped one at a time in the following order:<br />
<br />
# Port, foremost<br />
# Starboard, foremost<br />
# Port, centre<br />
# Starboard, centre<br />
# Port, aftmost<br />
# Starboard, aftmost<br />
<br />
Before spawning, the detonation time delay can be set anywhere between 3 seconds and 10 seconds.<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="7" | Depth charge characteristics<br />
|-<br />
! Mass (kg)<br />
! Explosive type<br />
! Explosive mass (kg)<br />
! TNT equivalent (kg)<br />
! HE armour<br>penetration (mm)<br />
! Armoured vehicle<br>destruction radius (m)<br />
! Fragment dispersion<br>radius (m)<br />
|-<br />
| 196 || TNT || 130 || 130 || 101 || 8 || 122 <br />
|}<br />
<br />
There is almost no practical reason to use depth charges on any naval vessel in the game. Although they usually result in a one-hit kill if used properly, they are extremely situational, requiring the player to close to point-blank ranges to even use them. In almost every case, anytime a depth charge could be used, the guns or torpedoes can be used instead to greater effect. In fact, depth charges tend to actually be a liability in battle, since they essentially act as exposed ammo racks before they're dropped. Like torpedoes, they can be shot at, and if destroyed, they have a chance to detonate, instantly destroying the boat.<br />
<br />
Despite this, some success can be had in dropping them either next to, or in front of a large, slow target. If dropping them next to the target, remember the depth charge drop order, since it's most likely that only the depth charges dropped on the side closest to the enemy will deal any damage. If dropping in front of the target, rush in from the sides as quickly as possible and drop them all at once directly in front of the target. For both cases, set the depth charge time delay to the minimum 3 seconds, since any higher time delay will only allow the depth charge to sink further away from the target, giving them more time to move out of the way. Again, using depth charges is extremely situational, and they will only be a liability the vast majority of the time, so take them at your own discretion.<br />
<br />
== Usage in battles ==<br />
<!-- ''Describe the technique of using this ship, the characteristics of her use in a team and tips on strategy. Abstain from writing an entire guide – don't try to provide a single point of view, but give the reader food for thought. Talk about the most dangerous opponents for this vehicle and provide recommendations on fighting them. If necessary, note the specifics of playing with this vehicle in various modes (AB, RB, SB).'' --><br />
<br />
MTB-1(2) is largely identical to her tech tree equivalent, {{Specs-Link|uk_mtb_1series}}. As such, she shares many of the same drawbacks — low per-hit damage, low maximum range, and generally poor survivability — although with one key difference: while the gun turrets are mounted on the fore and aft on MTB-1(2), they are mounted side-by-side amidships on MTB-1(2). This arrangement allows MTB-1(2) extra versatility over MTB-1(2), since all of the guns can now be brought on target without needing to angle the hull. Aside from this, though, MTB-1(2) has much the same playstyle as MTB-1(1).<br />
<br />
Like MTB-1(1), the limitations of the guns dictate MTB-1(2)'s playstyle. The 7.7 mm Lewis machine guns have poor ballistic qualities and a absolute maximum range of only about 1.7 km. Because of this, stick to close-range engagements, ideally within 1 km, and avoid open areas of the map wherever possible. Additionally, the guns have a very low per-hit damage output, so avoid direct confrontations as much as possible. Instead, use MTB-1(2)'s decent top speed to rush into flanking positions or contested areas around capture points, making use of hard cover to play a supportive role, assisting your teammates in taking down preoccupied enemies. For larger targets unaffected by the guns, mark their position on the map for your team and call artillery.<br />
<br />
Another thing to be aware of is the extremely long reload of the guns. Running out of ammo mid-engagement will always always lead to MTB-1(2)'s destruction, so at all times, keep an eye on how much ammunition is left in the guns and try to always keep an escape route open, using smoke to run away if necessary. In general, but especially for guns with long reloads, it's a good idea to be proactive with the reloads. Before the magazines empty, run back to cover, then fire off any remaining ammunition in order to start reloading in safety. A good time to consider doing this with MTB-1(2) is when the magazines about half empty, or when it shows about 750 rounds left between all guns, since with any less ammo, it may be difficult to finish an engagement before needing to reload. However, do be aware that MTB-1(2) can, at most, only carry enough ammunition for 10 reloads. This doesn't tend to be much of an issue in practice because MTB-1(2) doesn't tend to survive long enough for it to become an issue, but it is something to keep in mind.<br />
<br />
As for torpedoes, either launch them down choke points or prioritize larger, slower targets such as sub-chasers that the guns are ineffective against. If targeting a specific enemy, try to launch them as close to the target as possible to allow them the least amount of time to dodge. However, try to only do this on distracted targets and when other enemies aren't around, since exposing MTB-1(2) to enemy fire just to launched the torpedoes is generally not worth the risk. If the situation doesn't present itself, it's better to just mark the target on the map for your teammates, call artillery, then disengage. As mentioned in the previous section, torpedoes are a situational weapon, and taking them at all negatively impacts survivability, so only take them if you prefer the extra utility at the cost of survivability.<br />
<br />
=== Pros and cons ===<br />
<!-- ''Summarise and briefly evaluate the vehicle in terms of its characteristics and combat effectiveness. Mark its pros and cons in the bulleted list. Try not to use more than 6 points for each of the characteristics. Avoid using categorical definitions such as "bad", "good" and the like - use substitutions with softer forms such as "inadequate" and "effective".'' --><br />
<br />
'''Pros:'''<br />
<br />
* Relatively large magazine capacity: can destroy most opponents without needing to reload<br />
* Good manoeuvrability<br />
* Premium bonus<br />
<br />
'''Cons:'''<br />
<br />
* Only armed with low-calibre guns: very poor damage output and limited effective range<br />
* Very long reload: longest of any reserve and one of the longest among coastal vessels<br />
* Poor survivability<br />
* Relatively weak torpedoes: low explosive mass compared to other similar torpedoes<br />
<br />
== History ==<br />
<!-- ''Describe the history of the creation and combat usage of the ship in more detail than in the introduction. If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the ship and adding a block "/History" (example: <nowiki>https://wiki.warthunder.com/(Ship-name)/History</nowiki>) and add a link to it here using the <code>main</code> template. Be sure to reference text and sources by using <code><nowiki><ref></ref></nowiki></code>, as well as adding them at the end of the article with <code><nowiki><references /></nowiki></code>. This section may also include the ship's dev blog entry (if applicable) and the in-game encyclopedia description (under <code><nowiki>=== In-game description ===</nowiki></code>, also if applicable).'' --><br />
<br />
Though the Royal Navy had operated a small number of coastal boats during the first World War, by the 1930s, these flotillas had long been dissolved and the Royal Navy had yet to construct any more. The first two coastal boats since WWI were ordered on 27th September 1935 by the Royal Navy, the order being given to British Power Boat Company based at Hythe, a town near Southampton. In addition to this initial order, four more were ordered on 19th October 1935. These six boats were completed by November 1936, and, with their commissioning on 27th April 1937, the Royal Navy Coastal Forces was founded. Following this, three more boats were ordered on 7th December 1936 and nine more on 11th January 1938. In total, 18 boats were ordered, all of them being completed by 1939.<br />
<br />
These boats had a standard displacement of 18 tons and had a length of 60 ft. 4 in., a width of 13 ft. 4 in., and a draught of 2 ft. 10 in. at standard displacement. They were powered by three Napier Sea Lion petrol engines, each driving a single shaft, and could reach speeds of around 30-35 knots. Each boat could carry two 18 inch torpedoes which were stored internally on rails above the engines. On the stern were two more rails that could be folded down to the transom, extending the torpedoes' rails outside of the boat. The torpedoes fired facing forwards down the rails, after which the boat that fired them would have to turn to evade their path. In addition to torpedoes, the boats were also armed with a number of depth charges and, depending on the exact boat, up to eight Lewis guns.<br />
<br />
MTB 1, the first of the boats, was redesignated MTB 7 in 1937. Similarly, MTB 7 was redesignated MTB 1 in the same year. In 1938, the former MTB 1, now MTB 7, was redesignated MTB 13. At the same time, MTB 13 was redesignated MTB 7. Finally, later in 1938, the former MTB 1, now MTB 13, was again redesignated MTB 19. Thus, by the start of WWII, the boats were numbered MTBs 1-12 and 14-19 and formed two MTB flotillas: 1st MTB Flotilla, consisting of MTBs 1-6 and 14-19; and 2nd MTB Flotilla, consisting of MTBs 7-12.<br />
<br />
The 1st MTB Flotilla was sent to the Mediterranean at the start of WWII and was based at HMS Vulcan in Malta. They were soon recalled back to England in December 1939 to be based at HMS Beehive, Felixstowe, though MTB 19 was sent to HMS Vernon, Portsmouth. Along the way back, due to bad weather, MTB 6 had to be foundered. After they arrived, the remaining boats continued to operate in the English Channel until they were either lost or replaced. Those lost were MTBs 15, 16, and 17, all of which were mined in 1940.<br />
<br />
The 2nd MTB Flotilla was commissioned in 1938 and assigned to HMS Tamar, Hong Kong. They were all lost during the Battle of Hong Kong in December 1941. MTB 8 was bombed by IJN aircraft and was damaged beyond repair, and MTB 12 was sunk in action by IJN landing craft. The remainder of the 2nd MTB Flotilla was scuttled on 26th December 1941.<br />
<br />
== Media ==<br />
<!-- ''Excellent additions to the article would be video guides, screenshots from the game, and photos.'' --><br />
<br />
;'''Skins'''<br />
<br />
* [https://live.warthunder.com/feed/camouflages/?vehicleCountry=britain&vehicleType=ship&vehicleClass=torpedo_boat&vehicle=uk_mtb_2series Skins and camouflages for the {{PAGENAME}} from live.warthunder.com.]<br />
<br />
;'''Images'''<br />
<gallery mode="packed" heights="150"><br />
Uk mtb 2series.jpg||{{PAGENAME}} featured in an in-game art.<br />
Mtb-1_2_series_variant.png||MTB-1(2) in the hangar<br />
</gallery><br />
<br />
== See also ==<br />
<!-- ''Links to articles on the War Thunder Wiki that you think will be useful for the reader, for example:''<br />
* ''reference to the series of the ship;''<br />
* ''links to approximate analogues of other nations and research trees.'' --><br />
;Vehicles of the same class<br />
* {{Specs-Link|uk_mtb_1series}}<br />
* [[MTB-1 (Family)]]<br />
<br />
;Similar vehicles<br />
* {{Specs-Link|uk_fairmile_a_ml100}}<br />
* {{Specs-Link|uk_mtb_vosper_1series}}<br />
<br />
== External links ==<br />
<!-- ''Paste links to sources and external resources, such as:''<br />
* ''topic on the official game forum;''<br />
* ''encyclopedia page on the ship;''<br />
* ''other literature.'' --><br />
<br />
* [https://www.unithistories.com/units_british/RN_MTBs.html#MTB_Boats <nowiki>[Unit Histories]</nowiki> Royal Navy Coastal Forces 1940-1945]<br />
* [http://www.naval-history.net/WW2BritishLosses3Coastal.htm <nowiki>[naval-history.net]</nowiki> British vessels lost at sea in World War 2 - MGB, MTB, SGB, ML, etc] - originally published in ''British Vessels Lost at Sea, 1935-45'', His Majesty's Stationary Office, 1947<br />
* [http://www.mwadui.com/HongKong/Coastal-Forces-Hong-Kong.htm <nowiki>[mwadui.com]</nowiki> Royal Navy Coastal Forces - Hong Kong]<br />
* [http://www.coastal-forces.org.uk/history.html <nowiki>[Coastal Forces Heritage Trust]</nowiki> Coastal Forces of World War II - History]<br />
* [https://www.yalumba.co.uk/Framesets/British%20Power%20Boat%20Co.htm <nowiki>[yalumba.co.uk]</nowiki> British Power Boat Co Page 1]<br />
* [https://www.yalumba.co.uk/Framesets/British%20Power%20Boat%20Co%20-%20page%205,%20MTBs.html <nowiki>[yalumba.co.uk]</nowiki> British Power Boat Co Page 5]<br />
* [[wikipedia:Coastal_Forces_of_the_Royal_Navy|[Wikipedia] Coastal Forces of the Royal Navy]]<br />
<br />
{{Britain boats}}<br />
{{Britain premium ships}}</div>U27474208https://old-wiki.warthunder.com/index.php?title=MTB-1(1)&diff=107837MTB-1(1)2021-07-29T01:39:49Z<p>U27474208: Update hullbreak information</p>
<hr />
<div>{{About<br />
| about = British motor torpedo boat '''{{PAGENAME}}'''<br />
| usage = other versions<br />
| link = MTB-1 (Family)<br />
}}<br />
{{Specs-Card<br />
|code=uk_mtb_1series<br />
|images={{Specs-Card-Image|GarageImage_{{PAGENAME}}.jpg}}<br />
}}<br />
<br />
== Description ==<br />
<!-- ''In the first part of the description, cover the history of the ship's creation and military application. In the second part, tell the reader about using this ship in the game. Add a screenshot: if a beginner player has a hard time remembering vehicles by name, a picture will help them identify the ship in question.'' --><br />
The '''{{Specs|name}}''' is a rank {{Specs|rank}} British motor torpedo boat {{Battle-rating}}. It was introduced in [[Update 1.83 "Masters of the Sea"]] as part of the British fleet closed beta test. With the split of the naval tech trees in [[Update "New Power"]], {{PAGENAME}} was moved to the coastal fleet tech tree where it is now the reserve vehicle.<br />
<br />
Decently fast and manoeuvrable, MTB-1(1) is the reserve vehicle of the British coastal fleet tech tree. It carries a pair of torpedoes and sports a large number of guns, eight 7.72 mm Lewis 1916 machine guns in total. However, each machine gun individually has a poor damage output and a low effective range, so combined with her low survivability, extra caution is needed to fully utilize MTB-1(1).<br />
<br />
There is a premium version of this vehicle, {{Specs-Link|uk_mtb_2series}}, which differs in the gun mount placement and number of depth charges.<br />
<br />
== General info ==<br />
=== Survivability and armour ===<br />
{{Specs-Fleet-Armour}}<br />
<!-- ''Talk about the vehicle's armour. Note the most well-defended and most vulnerable zones, e.g. the ammo magazine. Evaluate the composition of components and assemblies responsible for movement and manoeuvrability. Evaluate the survivability of the primary and secondary armaments separately. Don't forget to mention the size of the crew, which plays an important role in fleet mechanics. Save tips on preserving survivability for the "Usage in battles" section. If necessary, use a graphical template to show the most well-protected or most vulnerable points in the armour.'' --><br />
<br />
[[File:{{PAGENAME}}_Internals.png|thumb|{{PAGENAME}} internals (starboard). Note the ammo storage between the bridge and the forward gun mount.]]<br />
<br />
MTB-1(1) has the following armour layout:<br />
<br />
* Hull: 24 mm, wood<br />
* Superstructure: 2 mm, steel<br />
<br />
Any gun in the game will easily be able to penetrate the hull and superstructure at any range.<br />
<br />
The hull is split into three sections. Starting from the bow and working towards the stern, the first section starts at the bow and ends after the ammunition storage; the second ends just behind the bridge; and the third ends at the stern. <br />
<br />
Any round with a large enough diameter and explosive mass can hull break MTB-1(1). In general, this is limited to HE rounds with a diameter greater than 4 inches (102 mm) with an explosive mass greater than 1.5 kg. At MTB-1(1)'s own battle rating, there is only one gun capable of hull-breaking her:<br />
<br />
* the [[8cwt QF Mk I (114 mm)|114 mm 8cwt QF Mk I]], found on {{Specs-Link|uk_dark_class}}.<br />
<br />
There is one ammunition storage that holds ammunition for both the fore and aft gun turrets. It is located directly behind the forward gun turret just above the waterline. Destroying it will instantly destroy MTB-1(1).<br />
<br />
MTB-1(1) has a crew complement of 11. With a stock crew, it is knocked out when 7 crew are lost; with an aced crew, this is increased to 8. <br />
<br />
While MTB-1(1)'s crew complement is about average when comparing vessels with the same battle rating, her overall survivability is rather poor when compared to everything in her battle rating range. The placement of the guns also forces MTB-1(1) to expose the rear hull sections to get all the guns on target, something not required with most other reserve vessels. <br />
<br />
=== Mobility ===<br />
{{Specs-Fleet-Mobility}}<br />
<!-- ''Write about the ship's mobility. Evaluate its power and manoeuvrability, rudder rerouting speed, stopping speed at full tilt, with its maximum forward and reverse speed.'' --><br />
<br />
{{NavalMobility<br />
|SpeedForwardStockAB = 63<br />
|SpeedBackStockAB = 32<br />
|TurnTimeStockAB = 18.64<br />
|TurnSpeedStockAB = 43<br />
<br />
|TurnTimeSpadedAB = 12.67<br />
|TurnSpeedSpadedAB = 40<br />
<br />
|SpeedForwardStockRB = 53<br />
|SpeedBackStockRB = 26<br />
|TurnTimeStockRB = 20.77<br />
|TurnSpeedStockRB = 40<br />
<br />
|TurnTimeSpadedRB = 17.44<br />
|TurnSpeedSpadedRB = 43<br />
}}<br />
<br />
While her top speed is on the slower side compared to other motor torpedo boats, MTB-1(1)'s manoeuvrability is actually rather good. With a tight turning circle and a decent enough top speed, the mobility is suitable enough for most situations, although the lower top speed really hurts her potential for flanking on certain maps.<br />
<br />
MTB-1(1) has a displacement of 22.4 tons. Because of her small size and relatively low displacement, MTB-1(1) can be an unstable firing platform in rough waters.<br />
<br />
=== Modifications and economy ===<br />
{{Specs-Economy}}<br />
<br />
As a reserve vehicle, the following modifications are unlocked for free: Rudder Replacement, Propeller Replacement, Engine Maintenance, Tool Set, Fire Protection System, New Pumps, and Primary Armament Targeting.<br />
<br />
The recommended modification research order is:<br />
# 7.7 mm API belt<br />
# Smokescreen<br />
# Artillery Support<br />
# Dry-Docking<br />
<br />
After that, research the rest of the modifications in whatever order you prefer.<br />
<br />
== Armament ==<br />
{{Specs-Fleet-Armaments}}<br />
=== Primary armament ===<br />
{{Specs-Fleet-Primary}}<br />
<!-- ''Provide information about the characteristics of the primary armament. Evaluate their efficacy in battle based on their reload speed, ballistics and the capacity of their shells. Add a link to the main article about the weapon: <code><nowiki>{{main|Weapon name (calibre)}}</nowiki></code>. Broadly describe the ammunition available for the primary armament, and provide recommendations on how to use it and which ammunition to choose.'' --><br />
{{main|Lewis 1916 (7.72 mm)}}<br />
<br />
The primary armament consists of eight 7.72 mm Lewis 1916 machine guns in two quadruple mounts, one on the bow and one on the stern. There are 3,880 rounds of ammunition available for each mount, 970 rounds per gun, for a total of 7,760 rounds. Stock, the mounts can traverse horizontally and vertically at a rate of 64°/s; with the "Primary Armament Targeting" modification installed, this is increased to 75°/s. Each gun has a magazine capacity of 97 rounds and a cyclic rate of fire of 551 rounds/min. With a stock crew, the guns can be reloaded in 18.2 seconds; with an aced crew, they can be reloaded in 14 seconds. The 7.72 mm Lewis 1916 machine gun has an absolute maximum range of about 1.7 km against surface targets.<br />
<br />
The 7.72 mm Lewis 1916 machine guns, like other low-calibre machine guns, each individually have very poor damage outputs. With their relatively large magazine size and eight of them in total, though, MTB-1(1) is able to destroy most opponents without needing to reload, assuming that most of the shots land. This, however, comes at the cost of an incredibly long reload, the longest of any reserve vessel and one of the longest of any coastal fleet vessel in general. Because of this, it's best to always fire off any remaining ammunition after engagements to begin reloading in safety and to ensure full magazines at the start of the next engagement.<br />
<br />
{{Notice|Turrets are named sequentially, clockwise, starting at the bow}}<br />
<br />
{| class="wikitable" style="text-align:center" width="50%"<br />
! colspan="4" | Primary armament guidance<br />
|-<br />
! colspan="2" rowspan="1" | No.1 Turret (fore)<br />
! colspan="2" rowspan="1" | No.2 Turret (aft)<br />
|-<br />
! Horizontal !! Vertical !! Horizontal !! Vertical<br />
|-<br />
| ±180° || -5°/+43° || ±160° || -5°/+43°<br />
|-<br />
|}<br />
<br />
The front gun mount is able to fire in all directions except in a ~34° arc directly behind it. Because of the depth charge racks, the aft gun mount is unable to target any close-range targets in a ~42° arc on each side facing forwards, even if the depth charge racks are empty. The rear gun mount also cannot fire in a ~30° arc directly behind either. Only the front gun mount is able to fully rotate 360°.<br />
<br />
There are three ammunition types available:<br />
<br />
* Universal: {{Annotation|AP|Armour-piercing}}{{-}}{{Annotation|T|Tracer}}{{-}}{{Annotation|AP|Armour-piercing}}{{-}}{{Annotation|T|Tracer}}<br />
<br />
* 7.7 mm AP belt: {{Annotation|AP|Armour-piercing}}{{-}}{{Annotation|AP|Armour-piercing}}{{-}}{{Annotation|AP|Armour-piercing}}{{-}}{{Annotation|T|Tracer}}<br />
<br />
* 7.7 mm API belt: {{Annotation|IT|Incendiary tracer}}{{-}}{{Annotation|IT|Incendiary tracer}}{{-}}{{Annotation|IT|Incendiary tracer}}{{-}}{{Annotation|AP|Armour-piercing}}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="7" | Penetration statistics (belt)<br />
|-<br />
! rowspan="2" data-sort-type="text" | Belt<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| Universal || 10 || 9 || 8 || 7 || 6 || 5<br />
|-<br />
| 7.7 mm AP belt || 10 || 9 || 8 || 7 || 6 || 5<br />
|-<br />
| 7.7 mm API belt || 10 || 9 || 7 || 6 || 5 || 5<br />
|-<br />
|}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="8" | Penetration statistics (shell)<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! rowspan="2" | Type of<br>warhead<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| AP || {{Annotation|AP|Armour-piercing}} || 10 || 9 || 8 || 7 || 6 || 5<br />
|-<br />
| T || {{Annotation|T|Tracer}} || 9 || 8 || 7 || 6 || 5 || 4<br />
|-<br />
| IT || {{Annotation|IT|Incendiary tracer}} || 10 || 9 || 7 || 6 || 5 || 5<br />
|-<br />
|}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="10" | Shell details<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! rowspan="2" | Type of<br>warhead<br />
! rowspan="2" | Velocity<br>(m/s)<br />
! rowspan="2" | Projectile<br>Mass (kg)<br />
! rowspan="2" | Fuse delay<br>(m)<br />
! rowspan="2" | Fuse sensitivity<br>(mm)<br />
! rowspan="2" | Explosive Mass<br>(TNT equivalent) (g)<br />
! colspan="3" | Ricochet<br />
|-<br />
! 0% !! 50% !! 100%<br />
|-<br />
| AP || {{Annotation|AP|Armour-piercing}} || 853 || 0.01 || N/A || N/A || N/A || 47° || 56° || 65°<br />
|-<br />
| T || {{Annotation|T|Tracer}} || 835 || 0.01 || N/A || N/A || N/A || 47° || 56° || 65°<br />
|-<br />
| IT || {{Annotation|IT|Incendiary tracer}} || 920 || 0.01 || N/A || N/A || N/A || 47° || 56° || 65°<br />
|-<br />
|}<br />
<br />
While the armour-piercing round and the the incendiary tracer round deal about the same amount of the damage, the standard tracer round deals incredibly little damage to both surface targets and aircraft. Because of this, the AP belt is a strict upgrade from the default belt. Compared to the AP rounds, the IT rounds also have a much higher muzzle velocity. Altogether, this makes the API belt the best overall, due both to its lack of standard tracer rounds and better balistic properties.<br />
<br />
=== Additional armament ===<br />
{{Specs-Fleet-Additional}}<br />
<!-- ''Describe the available additional armaments of the ship: depth charges, mines, torpedoes. Talk about their positions, available ammunition and launch features such as dead zones of torpedoes. If there is no additional armament, remove this section.'' --><br />
{{main|18 inch Mark XII (450 mm)|Mk.VII depth charge}}<br />
<br />
MTB-1(1) can be outfitted with the following:<br />
<br />
* Without load<br />
* 2 x Mk.XII torpedo<br />
* 4 x Mk.VII depth charge<br />
* 2 x Mk.XII torpedo, 4 x Mk.VII depth charge<br />
<br />
'''Torpedoes'''<br />
<br />
MTB-1(1) can carry two 18 inch Mark XII torpedoes. These are carried internally in the aft of the boat and are launched through the transom tail first, i.e. facing forwards.<br />
<br />
{| class="wikitable" style="text-align:center" width="100%"<br />
! colspan="9" | Torpedo characteristics<br />
|-<br />
! Torpedo Mode !! Mass (kg) !! Maximum speed in water (km/h) !! Travel distance (km) !! Depth stroke (m) !! Arming distance (m) !! Explosive type !! Explosive mass (kg) !! TNT equivalent (kg)<br />
|-<br />
| {{Annotation|No|'Torpedo Mode' modification uninstalled}} || 702 || 50 || 3.20 || 1 || 50 || TNT || 176 || 176<br />
|-<br />
| {{Annotation|Yes|'Torpedo Mode' modification installed}} || 702 || 74 || 1.37 || 1 || 50 || TNT || 176 || 176<br />
|}<br />
<br />
The 18-inch Mk.XII is fairly average in terms of maximum speed, though it has a rather short maximum range and small explosive mass compared to other torpedoes. Still, the range is good enough for coastal maps, and a hit with the Mk.XII torpedo is more than enough to destroy any boat. <br />
<br />
The Torpedo Mode modification is available as a rank IV modification. Installing it will give the following changes:<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="2" | Torpedo mode specification changes<br />
|-<br />
! Max distance (m)<br />
! Max speed (m/s)<br />
|-<br />
| -1829|| +7<br />
|-<br />
|}<br />
<br />
Once unlocked, it's best to always keep Torpedo Mode installed. The maximum speed of a torpedo is much more valuable in coastal battles than its maximum range. Coastal fleet maps are also small enough that the decreased range with Torpedo Mode installed isn't much of an issue. Note, though, that the Torpedo Mode modification on MTB-1(1) has the opposite effect compared to most other vessels. Typically, the maximum range is increased at the cost of speed.<br />
<br />
In RB, always set the depth stroke to the minimum 1 m setting. This is because many vessels that MTB-1(1) can face will not have a deep enough draught to fuse the torpedo at a depth stroke setting of 4 m. In AB, depth stroke is automatically set to the most optimal setting.<br />
<br />
When using torpedoes, be aware that unless they are already launched, the torpedoes be shot at and destroyed. Upon being destroyed, there is relatively high chance for them to detonate, instantly destroying the boat. To avoid this, fire the torpedoes early on in battle — as well as after any subsequent reloads in AB — or simply don't take them at all. Torpedoes are a situational weapon, so it's largely down to personal preference whether or not to take them.<br />
<br />
'''Depth Charges'''<br />
<br />
[[File:{{PAGENAME}}_DC_Order.png|thumb|Mk.VII depth charges numbered according to their drop order.]]<br />
<br />
The Mk.VII depth charges are carried behind the bridge in racks, two on each side. They are dropped one at a time in the following order:<br />
<br />
# Port, foremost<br />
# Starboard, foremost<br />
# Port, aftmost<br />
# Starboard, aftmost<br />
<br />
Before spawning, the detonation time delay can be set anywhere between 3 seconds and 10 seconds.<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="7" | Depth charge characteristics<br />
|-<br />
! Mass (kg)<br />
! Explosive type<br />
! Explosive mass (kg)<br />
! TNT equivalent (kg)<br />
! HE armour penetration (mm)<br />
! Armoured vehicle destruction radius (m)<br />
! Fragment dispersion radius (m)<br />
|-<br />
| 196 || TNT || 130 || 130 || 101 || 8 || 122 <br />
|}<br />
<br />
There is almost no practical reason to use depth charges on any naval vessel in the game. Although they usually result in a one-hit kill if used properly, they are extremely situational, requiring the player to close to point-blank ranges to even use them. In almost every case, anytime a depth charge could be used, the guns or torpedoes can be used instead to greater effect. In fact, depth charges tend to actually be a liability in battle, since they essentially act as exposed ammo racks before they're dropped. Like torpedoes, they can be shot at, and if destroyed, they have a chance to detonate, instantly destroying the boat.<br />
<br />
Despite this, some success can be had in dropping them either next to, or in front of, a large, slow target. If dropping them next to the target, remember the depth charge drop order, since it's most likely that only the depth charges dropped on the side closest to the enemy will deal any damage. If dropping in front of the target, rush in from the sides as quickly as possible and drop them all at once directly in front of the target. For both cases, set the depth charge time delay to the minimum 3 seconds, since any higher time delay will only allow the depth charge to sink further away from the target, giving them more time to move out of the way. Again, using depth charges is extremely situational, and they will only be a liability the vast majority of the time, so take them at your own discretion.<br />
<br />
== Usage in battles ==<br />
<!-- ''Describe the technique of using this ship, the characteristics of her use in a team and tips on strategy. Abstain from writing an entire guide – don't try to provide a single point of view, but give the reader food for thought. Talk about the most dangerous opponents for this vehicle and provide recommendations on fighting them. If necessary, note the specifics of playing with this vehicle in various modes (AB, RB, SB).'' --><br />
<br />
[[File:MTB-1_1_series_skin_"MTB-1_'01'".png|thumb|MTB-1(1) with the historical camouflage '''"MTB-1 '01'''', available on the [http://trade.gaijin.net Gaijin Marketplace].]]<br />
<br />
Like any other vessel armed only with low-calibre machine guns, MTB-1(1) is severely limited by her armament. The 7.72 mm Lewis 1916 machine guns have both a poor muzzle velocity and a low projectile mass, giving them a very low absolute maximum range of only about 1.7 km. Their effective range is even less at only about 1-1.25 km, since the poor ballistics of the guns makes it rather difficult to consistently hit moving targets at any further distance. Being able to consistently hit targets is especially important with MTB-1(1) as, although she carries a large number of guns, each individual machine gun has an incredibly low per-hit damage output, leaving the overall damage output less than that of her heavy machine gun or autocannon-armed counterparts. Because of this, along with the range limitation of the guns, MTB-1(1) is best played at close ranges, with engagement distances ideally starting at 1 km or less. At such short ranges, the poor ballistics of the guns aren't nearly as pronounced, making them much easier to aim.<br />
<br />
Make use of MTB-1(1)'s relatively fast top speed and terrain cover to either flank the enemy team or to rush into contested areas around capture points, but avoid long, open areas of the map wherever possible. In those areas, MTB-1(1) will most likely be completely outranged, giving giving the enemy free hits. Once in close range, try to avoid direct engagements with enemies, as MTB-1(1) will most likely lose. Instead, try to flank, supporting the team by picking off small targets distracted by teammates and calling artillery on larger enemies that the guns are are unable to damage.<br />
<br />
Although she can mostly handle one-on-one engagements, MTB-1(1) is particularly poor at dealing with multiple enemies at once. This is because of the low damage output and extremely long reload. At all times, be aware of the how much ammo are left in the guns. Getting caught during a reload will almost always lead to MTB-1(1)'s destruction, so always keep an escape route open, and use smoke to run away if necessary. In general, but especially for guns with long reloads, it's better to be proactive with the reloads. Before the magazines empty, run back to cover, then fire off any remaining ammunition in order to start reloading in safety. A good time to consider doing this with MTB-1(1) is when the magazines about half empty, or when it shows about 750 rounds left between all guns, since with any less ammo, it may be difficult to finish an engagement before needing to reload. However, do be aware that MTB-1(1) can, at most, only carry enough ammunition for 10 reloads. This doesn't tend to be much of an issue in practice because MTB-1(1) doesn't tend to survive long enough for it to become an issue, but it is something to keep in mind.<br />
<br />
As for torpedoes, either launch them down choke points or prioritize larger, slower targets such as sub-chasers that the guns are ineffective against. If targeting a specific enemy, try to launch them as close to the target as possible to allow them the least amount of time to dodge. However, try to only do this on distracted targets and when other enemies aren't around, since exposing MTB-1(1) to enemy fire just to launched the torpedoes is generally not worth the risk. If the situation doesn't present itself, it's better to just mark the target on the map for your teammates, call artillery, then disengage. As mentioned in the previous section, torpedoes are a situational weapon, and taking them at all negatively impacts survivability, so only take them if you prefer the extra utility at the cost of survivability.<br />
<br />
=== Pros and cons ===<br />
<!-- ''Summarise and briefly evaluate the vehicle in terms of its characteristics and combat effectiveness. Mark its pros and cons in the bulleted list. Try not to use more than 6 points for each of the characteristics. Avoid using categorical definitions such as "bad", "good" and the like - use substitutions with softer forms such as "inadequate" and "effective".'' --><br />
<br />
'''Pros:'''<br />
<br />
* Relatively large magazine capacity: can destroy most opponents without needing to reload<br />
* Good manoeuvrability<br />
<br />
'''Cons:'''<br />
<br />
* Only armed with low-calibre guns: very poor damage output and limited effective range<br />
* Very long reload: longest of any reserve and one of the longest among coastal vessels<br />
* Poor survivability<br />
* Relatively weak torpedoes: low explosive mass compared to other similar torpedoes<br />
<br />
== History ==<br />
<!-- ''Describe the history of the creation and combat usage of the ship in more detail than in the introduction. If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the ship and adding a block "/History" (example: <nowiki>https://wiki.warthunder.com/(Ship-name)/History</nowiki>) and add a link to it here using the <code>main</code> template. Be sure to reference text and sources by using <code><nowiki><ref></ref></nowiki></code>, as well as adding them at the end of the article with <code><nowiki><references /></nowiki></code>. This section may also include the ship's dev blog entry (if applicable) and the in-game encyclopedia description (under <code><nowiki>=== In-game description ===</nowiki></code>, also if applicable).'' --><br />
<br />
Though the Royal Navy had operated a small number of coastal boats during the first World War, by the 1930s, these flotillas had long been dissolved and the Royal Navy had yet to construct any more. The first two coastal boats since WWI were ordered on 27th September 1935 by the Royal Navy, the order being given to British Power Boat Company based at Hythe, a town near Southampton. In addition to this initial order, four more were ordered on 19th October 1935. These six boats were completed by November 1936, and, with their commissioning on 27th April 1937, the Royal Navy Coastal Forces was founded. Following this, three more boats were ordered on 7th December 1936 and nine more on 11th January 1938. In total, 18 boats were ordered, all of them being completed by 1939.<br />
<br />
These boats had a standard displacement of 18 tons and had a length of 60 ft. 4 in., a width of 13 ft. 4 in., and a draught of 2 ft. 10 in. at standard displacement. They were powered by three Napier Sea Lion petrol engines, each driving a single shaft, and could reach speeds of around 30-35 knots. Each boat could carry two 18 inch torpedoes which were stored internally on rails above the engines. On the stern were two more rails that could be folded down to the transom, extending the torpedoes' rails outside of the boat. The torpedoes fired facing forwards down the rails, after which the boat that fired them would have to turn to evade their path. In addition to torpedoes, the boats were also armed with a number of depth charges and, depending on the exact boat, up to eight Lewis guns.<br />
<br />
MTB 1, the first of the boats, was redesignated MTB 7 in 1937. Similarly, MTB 7 was redesignated MTB 1 in the same year. In 1938, the former MTB 1, now MTB 7, was redesignated MTB 13. At the same time, MTB 13 was redesignated MTB 7. Finally, later in 1938, the former MTB 1, now MTB 13, was again redesignated MTB 19. Thus, by the start of WWII, the boats were numbered MTBs 1-12 and 14-19 and formed two MTB flotillas: 1st MTB Flotilla, consisting of MTBs 1-6 and 14-19; and 2nd MTB Flotilla, consisting of MTBs 7-12.<br />
<br />
The 1st MTB Flotilla was sent to the Mediterranean at the start of WWII and was based at HMS Vulcan in Malta. They were soon recalled back to England in December 1939 to be based at HMS Beehive, Felixstowe, though MTB 19 was sent to HMS Vernon, Portsmouth. Along the way back, due to bad weather, MTB 6 had to be foundered. After they arrived, the remaining boats continued to operate in the English Channel until they were either lost or replaced. Those lost were MTBs 15, 16, and 17, all of which were mined in 1940.<br />
<br />
The 2nd MTB Flotilla was commissioned in 1938 and assigned to HMS Tamar, Hong Kong. They were all lost during the Battle of Hong Kong in December 1941. MTB 8 was bombed by IJN aircraft and was damaged beyond repair, and MTB 12 was sunk in action by IJN landing craft. The remainder of the 2nd MTB Flotilla was scuttled on 26th December 1941.<br />
<br />
== Media ==<br />
<!-- ''Excellent additions to the article would be video guides, screenshots from the game, and photos.'' --><br />
<br />
;'''Skins'''<br />
<br />
* [https://live.warthunder.com/feed/camouflages/?vehicleCountry=britain&vehicleType=ship&vehicleClass=torpedo_boat&vehicle=uk_mtb_1series Skins and camouflages for the {{PAGENAME}} from live.warthunder.com.]<br />
<br />
;'''Images'''<br />
<gallery mode="packed" heights="150"><br />
Mtb-1 1 series.png||MTB-1(1) in the hangar<br />
MTB-1 damaged-1.jpg||MTB-1(1) defends a capture point, despite numerous damages.<br />
</gallery><br />
<br />
== See also ==<br />
<!-- ''Links to articles on the War Thunder Wiki that you think will be useful for the reader, for example:''<br />
* ''reference to the series of the ship;''<br />
* ''links to approximate analogues of other nations and research trees.'' --><br />
;Vehicles of the same class<br />
* {{Specs-Link|uk_mtb_2series}}<br />
* [[MTB-1 (Family)]]<br />
<br />
;Similar vehicles<br />
* {{Specs-Link|uk_fairmile_a_ml100}}<br />
* {{Specs-Link|uk_mtb_vosper_1series}}<br />
<br />
== External links ==<br />
<!-- ''Paste links to sources and external resources, such as:''<br />
* ''topic on the official game forum;''<br />
* ''other literature.'' --><br />
<br />
* [https://www.unithistories.com/units_british/RN_MTBs.html#MTB_Boats <nowiki>[Unit Histories]</nowiki> Royal Navy Coastal Forces 1940-1945]<br />
* [http://www.naval-history.net/WW2BritishLosses3Coastal.htm <nowiki>[naval-history.net]</nowiki> British vessels lost at sea in World War 2 - MGB, MTB, SGB, ML, etc] - originally published in ''British Vessels Lost at Sea, 1935-45'', His Majesty's Stationary Office, 1947<br />
* [http://www.mwadui.com/HongKong/Coastal-Forces-Hong-Kong.htm <nowiki>[mwadui.com]</nowiki> Royal Navy Coastal Forces - Hong Kong]<br />
* [http://www.coastal-forces.org.uk/history.html <nowiki>[Coastal Forces Heritage Trust]</nowiki> Coastal Forces of World War II - History]<br />
* [https://www.yalumba.co.uk/Framesets/British%20Power%20Boat%20Co.htm <nowiki>[yalumba.co.uk]</nowiki> British Power Boat Co Page 1]<br />
* [https://www.yalumba.co.uk/Framesets/British%20Power%20Boat%20Co%20-%20page%205,%20MTBs.html <nowiki>[yalumba.co.uk]</nowiki> British Power Boat Co Page 5]<br />
* [[wikipedia:Coastal_Forces_of_the_Royal_Navy|[Wikipedia] Coastal Forces of the Royal Navy]]<br />
<br />
{{Britain boats}}</div>U27474208https://old-wiki.warthunder.com/index.php?title=Fairmile_B_(ML345)&diff=107836Fairmile B (ML345)2021-07-29T01:36:52Z<p>U27474208: Updated to 2.7; added penetration by shell and shell details</p>
<hr />
<div>{{Specs-Card<br />
|code=uk_fairmile_b_ml345<br />
|images={{Specs-Card-Image|GarageImage_{{PAGENAME}}.jpg}}<br />
}}<br />
<br />
== Description ==<br />
<!-- ''In the first part of the description, cover the history of the ship's creation and military application. In the second part, tell the reader about using this ship in the game. Add a screenshot: if a beginner player has a hard time remembering vehicles by name, a picture will help them identify the ship in question.'' --><br />
The '''{{Specs|name}}''' is a rank {{Specs|rank}} British motor gun boat {{Battle-rating}}. It was introduced in [[Update 1.83 "Masters of the Sea"]] as part of the British fleet closed beta test. With the split of the naval tech trees in [[Update "New Power"]], {{PAGENAME}} was moved to the coastal fleet tech tree.<br />
<br />
== General info ==<br />
=== Survivability and armour ===<br />
{{Specs-Fleet-Armour}}<br />
<!-- ''Talk about the vehicle's armour. Note the most well-defended and most vulnerable zones, e.g. the ammo magazine. Evaluate the composition of components and assemblies responsible for movement and manoeuvrability. Evaluate the survivability of the primary and secondary armaments separately. Don't forget to mention the size of the crew, which plays an important role in fleet mechanics. Save tips on preserving survivability for the "Usage in battles" section. If necessary, use a graphical template to show the most well-protected or most vulnerable points in the armour.'' --><br />
<br />
[[File:{{PAGENAME}}_Internals.png|thumb|{{PAGENAME}} internals (starboard). Note the ammunition storage in the bow.]]<br />
<br />
Fairmile B (ML345) has the following armour layout:<br />
<br />
* [[3 pdr QF Hotchkiss (47 mm)|47 mm 3 pdr QF Hotchkiss]] gun shield: 8 mm, anti-fragmentation armour<br />
* [[20 mm/70 Oerlikon Mk.II (20 mm)|20 mm/70 Oerlikon Mk.II (single)]] gun shield: 12.7 mm, hardened armour<br />
* [[20 mm/70 Oerlikon Mark V (20 mm)|20 mm/70 Oerlikon Mark V (twin)]] gun shield: 12.7 mm, hardened armour<br />
* Hull: 28 mm, wood<br />
* Superstructure: 15 mm, wood<br />
<br />
Like most coastal vessels, Fairmile B (ML345) has no practical armour. The gunshields are largely superficial; while they may stop low-calibre machine guns, heavy machine guns and cannons will easily penetrate them at any range. The hull and superstructure are unarmoured and will not stop any sort of gunfire. <br />
<br />
The hull is split into four compartments. The first compartment starts at the bow and ends in front of the bridge, just in behind the pumps; the second ends at the funnel, between the radio station and the engines; the third ends in front of the aft 20 mm/70 Oerlikon Mark V twin mount; and the fourth ends at the stern. <br />
<br />
Fairmile B (ML345) can be hull-broken by any round with a large enough diameter and explosive mass. In general, this is limited to HE rounds greater with a diameter greater than or equal to 4 inches (102 mm) with an explosive mass greater than 1.5 kg. At Fairmile B (ML345)'s own battle rating, there is only one gun capable of hull-breaking her:<br />
<br />
* the [[8cwt QF Mk I (114 mm)|114 mm 8cwt QF Mk I]], found on {{Specs-Link|uk_dark_class}}.<br />
<br />
There are two ammunition storages: the first, holding the ammunition for the primary armament, is located well above the waterline in the bow, below and in front of the fore 47 mm 3 pdr QF Hotchkiss cannon; the other ammunition storage, holding the ammunition for both the secondary and the anti-aircraft armament, is located in the stern, just above the waterline in front of the steering gear. Destroying either will instantly destroy Fairmile B (ML345).<br />
<br />
Fairmile B (ML345) has a crew complement of 18. With a stock crew, it is knocked out when 11 crew are lost; with an aced crew, this is increased to 13. Overall, the survivability is average. <br />
<br />
=== Mobility ===<br />
{{Specs-Fleet-Mobility}}<br />
<!-- ''Write about the ship's mobility. Evaluate its power and manoeuvrability, rudder rerouting speed, stopping speed at full tilt, with its maximum forward and reverse speed.'' --><br />
<br />
{{NavalMobility<br />
|SpeedForwardStockAB = 37<br />
|SpeedBackStockAB = 14<br />
|TurnTimeStockAB = 55.47<br />
|TurnSpeedStockAB = 28<br />
<br />
|TurnTimeSpadedAB = 33.67<br />
|TurnSpeedSpadedAB = 25<br />
<br />
|SpeedForwardStockRB = 32<br />
|SpeedBackStockRB = 12<br />
|TurnTimeStockRB = 65.31<br />
|TurnSpeedStockRB = 27<br />
<br />
|TurnTimeSpadedRB = 48.14<br />
|TurnSpeedSpadedRB = 27<br />
}}<br />
<br />
Fairmile B (ML345) has a displacement of 65 tons.<br />
<br />
=== Modifications and economy ===<br />
{{Specs-Economy}}<br />
<br />
The recommended modification research order is:<br />
<br />
# Tool Set<br />
# Fire Protection System<br />
# 20 mm HE<br />
# 20 mm AP<br />
# Propeller Replacement<br />
# Improved Rangefinder<br />
# Artillery Support<br />
<br />
After that, research the rest of the seakeeping modifications, followed by the rest of the modifications in whatever order you prefer.<br />
<br />
== Armament ==<br />
{{Specs-Fleet-Armaments}}<br />
=== Primary armament ===<br />
{{Specs-Fleet-Primary}}<br />
<!-- ''Provide information about the characteristics of the primary armament. Evaluate their efficacy in battle based on their reload speed, ballistics and the capacity of their shells. Add a link to the main article about the weapon: <code><nowiki>{{main|Weapon name (calibre)}}</nowiki></code>. Broadly describe the ammunition available for the primary armament, and provide recommendations on how to use it and which ammunition to choose.'' --><br />
{{main|3 pdr QF Hotchkiss (47 mm)}}<br />
<br />
The primary armament consists of a single 47 mm 3 pdr QF Hotchkiss cannon mounted on the bow, with a maximum of 300 rounds of ammunition. Stock, the mount can traverse horizontally at a rate of 34°/s and vertically at a rate of 21°/s; with the "Primary Armament Targeting" modification installed, this is increased to 40°/s and 25°/s respectively. The gun is single-shot with a nominal rate of fire of 30 rounds/min. With a stock crew, it can be reloaded in 2.6 seconds; with an aced crew, it can be reloaded in 2 seconds.<br />
<br />
{| class="wikitable" style="text-align:center" width="25%"<br />
! colspan="2" | Primary armament guidance<br />
|-<br />
! Horizontal !! Vertical<br />
|-<br />
| ±180° || -10°/+70°<br />
|-<br />
|}<br />
<br />
There is only one ammunition type available:<br />
<br />
* 3 pdr Mk.2 HE<br />
<br />
{| class="wikitable" style="text-align:center" width="100%"<br />
! colspan="8" | Penetration statistics<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! rowspan="2" | Type of<br>warhead<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 100 m !! 1,000 m !! 2,000 m !! 3,000 m !! 4,000 m !! 5,000 m<br />
|-<br />
| 3 pdr Mk.2 HE || HE || 4 || 4 || 4 || 4 || 4 || 4<br />
|-<br />
|}<br />
{| class="wikitable" style="text-align:center" width="100%"<br />
! colspan="10" | Shell details<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! rowspan="2" | Type of<br>warhead<br />
! rowspan="2" | Velocity<br>(m/s)<br />
! rowspan="2" | Projectile<br>Mass (kg)<br />
! rowspan="2" | Fuse delay<br>(m)<br />
! rowspan="2" | Fuse sensitivity<br>(mm)<br />
! rowspan="2" | Explosive Mass<br>(TNT equivalent) (g)<br />
! colspan="3" | Ricochet<br />
|-<br />
! 0% !! 50% !! 100%<br />
|-<br />
| 3 pdr Mk.2 HE || {{Annotation|HE|High-explosive}} || 571 || 1.5 || 0 || 0.1 || 132 || 79° || 80° || 81°<br />
|-<br />
|}<br />
<br />
=== Secondary armament ===<br />
{{Specs-Fleet-Secondary}}<br />
<!-- ''Some ships are fitted with weapons of various calibres. Secondary armaments are defined as weapons chosen with the control <code>Select secondary weapon</code>. Evaluate the secondary armaments and give advice on how to use them. Describe the ammunition available for the secondary armament. Provide recommendations on how to use them and which ammunition to choose. Remember that any anti-air armament, even heavy calibre weapons, belong in the next section. If there is no secondary armament, remove this section.'' --><br />
{{main|20 mm/70 Oerlikon Mk.II (20 mm)|20 mm/70 Oerlikon Mark V (20 mm)}}<br />
<br />
The secondary armament consists of one 20 mm/70 Oerlikon Mk.II cannon and two 20 mm/70 Oerlikon Mk.V cannons.<br />
<br />
The 20 mm/70 Oerlikon Mk.II cannon is fitted in a single mount amidships aft of the funnel, with a maximum of 1,800 rounds of ammunition. Stock, the mount can traverse horizontally at a rate of 64°/s and vertically at a rate of 55°/s; with the "Auxiliary Armament Targeting" modification installed, this is increased to 75°/s and 65°/s respectively. The gun has a magazine capacity of 60 rounds and a cyclic rate of fire of around 450 rounds/min. With a stock crew, the gun can be reloaded in 5.2 seconds; with an aced crew, it can be reloaded in 4 seconds.<br />
<br />
The 20 mm/70 Oerlikon Mk.V cannons are fitted in a twin mount aft. There are 3,600 rounds of ammunition available for it, 1,800 rounds per gun. Stock, the mount can traverse horizontally at a rate of 51°/s and vertically at a rate of 43°/s; with the "Auxiliary Armament Targeting" modification installed, this is increased to 60°/s and 50°/s respectively. Each gun has a magazine capacity of 60 rounds and a stated cyclic rate of fire of around 450 rounds/min, though the gun on the gunner's right side fires slightly faster, around 485 rounds/min. With a stock crew, the guns can be reloaded in 10.4 seconds; with an aced crew, they can be reloaded in 8 seconds.<br />
<br />
{{Notice|Turrets are named sequentially, clockwise, starting at the bow}}<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="8" | Secondary armament guidance<br />
|-<br />
! colspan="2" rowspan="1" | No.1 Turret (1x [[20 mm/70 Oerlikon Mk.II (20 mm)|20 mm/70 Oerlikon Mk.II]])<br />
! colspan="2" rowspan="1" | No.2 Turret (2x [[20 mm/70 Oerlikon Mark V (20 mm)|20 mm/70 Oerlikon Mk.V]])<br />
|-<br />
! Horizontal !! Vertical !! Horizontal !! Vertical<br />
|-<br />
| ±147° || -5°/+60° || ±140° || -4°/+62°<br />
|-<br />
|}<br />
<br />
All of the secondary armament guns share the same ammunition, of which there are three types available:<br />
<br />
* Universal: {{Annotation|HEF-T|High-explosive fragmentation tracer}}{{-}}{{Annotation|HEF-I|High-explosive fragmentation incendiary}}{{-}}{{Annotation|AP-T|Armour-piercing tracer}}<br />
<br />
* 20 mm HE: {{Annotation|HEF-T|High-explosive fragmentation tracer}}{{-}}{{Annotation|HEF-I|High-explosive fragmentation incendiary}}{{-}}{{Annotation|AP-T|Armour-piercing tracer}}{{-}}{{Annotation|HEF-I|High-explosive fragmentation incendiary}}<br />
<br />
* 20 mm AP: {{Annotation|AP-T|Armour-piercing tracer}}{{-}}{{Annotation|AP-T|Armour-piercing tracer}}{{-}}{{Annotation|AP-T|Armour-piercing tracer}}{{-}}{{Annotation|HEF-I|High-explosive fragmentation incendiary}}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="7" | Penetration statistics<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| Universal || 35 || 33 || 26 || 21 || 18 || 15<br />
|-<br />
| 20 mm HE || 35 || 33 || 26 || 21 || 18 || 15<br />
|-<br />
| 20 mm AP || 35 || 33 || 26 || 21 || 18 || 15<br />
|-<br />
|}<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="8" | Penetration statistics (shell)<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! rowspan="2" | Type of<br>warhead<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| HEF-T || {{Annotation|HEF-T|High-explosive fragmentation tracer}} || 2 || 2 || 2 || 2 || 2 || 2<br />
|-<br />
| AP-T || {{Annotation|AP-T|Armour-piercing tracer}} || 35 || 33 || 26 || 21 || 18 || 15<br />
|-<br />
| HEF-I || {{Annotation|HEF-I|High-explosive fragmentation incendiary}} || 2 || 2 || 2 || 2 || 2 || 2<br />
|-<br />
|}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="10" | Shell details<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! rowspan="2" | Type of<br>warhead<br />
! rowspan="2" | Velocity<br>(m/s)<br />
! rowspan="2" | Projectile<br>Mass (kg)<br />
! rowspan="2" | Fuse delay<br>(m)<br />
! rowspan="2" | Fuse sensitivity<br>(mm)<br />
! rowspan="2" | Explosive Mass<br>(TNT equivalent) (g)<br />
! colspan="3" | Ricochet<br />
|-<br />
! 0% !! 50% !! 100%<br />
|-<br />
| HEF-T || {{Annotation|HEF-T|High-explosive fragmentation tracer}} || 844 || 0.12 || N/A || 0.1 || 6.57 || 79° || 80° || 81°<br />
|-<br />
| AP-T || {{Annotation|AP-T|Armour-piercing tracer}} || 844 || 0.12 || N/A || N/A || N/A || 47° || 60° || 65°<br />
|-<br />
| HEF-I || {{Annotation|HEF-I|High-explosive fragmentation incendiary}} || 838 || 0.12 || N/A || 0.1 || 11.17 || 79° || 80° || 81°<br />
|-<br />
|}<br />
<br />
The best ammunition for general use is the HE belt, due to it having the highest ratio of HE rounds to AP rounds, making it the most effective against both aircraft and the vast majority of surface targets. Because of this, the HE belt should be the main ammunition once it is unlocked. Additionally, the AP belt, with its higher amount of AP rounds, is better for dealing with armoured targets, so take a decent amount of these as well for specialized usage.<br />
<br />
=== Anti-aircraft armament ===<br />
{{Specs-Fleet-AA}}<br />
<!-- ''An important part of the ship's armament responsible for air defence. Anti-aircraft armament is defined by the weapon chosen with the control <code>Select anti-aircraft weapons</code>. Talk about the ship's anti-air cannons and machine guns, the number of guns and their positions, their effective range, and about their overall effectiveness – including against surface targets. If there are no anti-aircraft armaments, remove this section.'' --><br />
{{main|Lewis 1916 (7.72 mm)}}<br />
<br />
The anti-aircraft armament consists of four 7.72 mm Lewis 1916 machineguns in two twin mounts, one on either side of the bridge. There are 3,880 rounds of ammunition available for each mount, 1,940 rounds per gun, for a total of 7,760 rounds. No horizontal or vertical traverse rates are given in-game, though installing the "Anti-Air Armament Targeting" modification will still increase their traverse rates by 18%. Each gun has a magazine capacity of 97 rounds and a cyclic rate of fire of around 550 rounds/min. With a stock crew, the guns can be reloaded in 18.2 seconds; with an aced crew, they can be reloaded in 14 seconds.<br />
<br />
{{Notice|Turrets are named sequentially, clockwise, starting at the bow}}<br />
<br />
{| class="wikitable" style="text-align:center" width="50%"<br />
! colspan="8" | Anti-aircraft armament guidance<br />
|-<br />
! colspan="2" rowspan="1" | No.1 Turret (starboard)<br />
! colspan="2" rowspan="1" | No.2 Turret (port)<br />
|-<br />
! Horizontal !! Vertical !! Horizontal !! Vertical<br />
|-<br />
| -30°/+45°|| -5°/+50° || -45°/+30° || -5°/+50°<br />
|-<br />
|}<br />
<br />
There are no ammunition options available for this gun on Fairmile B (ML345). Neither belt composition nor penetration statistics are given in-game.<br />
<br />
=== Additional armament ===<br />
{{Specs-Fleet-Additional}}<br />
<!-- ''Describe the available additional armaments of the ship: depth charges, mines, torpedoes. Talk about their positions, available ammunition and launch features such as dead zones of torpedoes. If there is no additional armament, remove this section.'' --><br />
{{main|Mk.VII depth charge|Y-gun Mk.VII depth charge|Type M Mark I mine}}<br />
<br />
Fairmile B (ML345) has five possible loadouts:<br />
<br />
# 14x Mk.VII depth charge<br />
# 6x Y-gun Mk.VII depth charge<br />
# 14x Mk.VII depth charge, 6x Y-gun Mk.VII depth charge<br />
# 8x Type M Mk I mines<br />
# Without load<br />
<br />
'''Depth Charges'''<br />
<br />
[[File:{{PAGENAME}}_DC_Order.png|thumb|Mk.VII depth charges numbered according to their drop order (click to view a larger image).]]<br />
<br />
The Mk.VII depth charges are carried in racks on the stern, seven on either side, with three in front of the aft gun and four behind. The depth charges are dropped one at a time in the following order: foremost to aftmost and alternating port to starboard, starting with the foremost depth charge on the port side.<br />
<br />
The Y-gun Mk.VII depth charges are fired from a depth charge thrower mounted in front of the aft gun. The depth charge thrower has two arms, one pointed to either side of the boat, and will launch either the port or starboard depth charge depending on the direction the player is currently looking. These cannot be aimed and will always land approximately 50 m away from the boat. After launching, there is a 20 second reload, although the damage model is actually updated after only 10 seconds. Aside from the two depth charges already on the thrower, there are an additional four stored in reserve on the deck just aft of the thrower, two per side.<br />
<br />
Before spawning, the detonation time delay for both types of depth charges can be set anywhere between 3 seconds and 10 seconds.<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="7" | Depth charge characteristics ([[Mk.VII depth charge]])<br />
|-<br />
! Mass (kg)<br />
! Explosive type<br />
! Explosive mass (kg)<br />
! TNT equivalent (kg)<br />
! HE armour<br>penetration (mm)<br />
! Armoured vehicle<br>destruction radius (m)<br />
! Fragment dispersion<br>radius (m)<br />
|-<br />
| 196 || TNT || 130 || 130 || 101 || 8 || 122 <br />
|}<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="7" | Depth charge characteristics ([[Y-gun Mk.VII depth charge]])<br />
|-<br />
! Mass (kg)<br />
! Explosive type<br />
! Explosive mass (kg)<br />
! TNT equivalent (kg)<br />
! HE armour<br>penetration (mm)<br />
! Armoured vehicle<br>destruction radius (m)<br />
! Fragment dispersion<br>radius (m)<br />
|-<br />
| 196 || TNT || 130 || 130 || 101 || 8 || 122 <br />
|}<br />
<br />
There is almost no practical reason to use depth charges on any naval vessel in the game. Although they usually result in a one-hit kill if used properly, they are extremely situational, requiring the player to close to point-blank ranges to even use them. In almost every case, anytime a depth charge could be used, the guns or torpedoes can be used instead to greater effect. In fact, depth charges tend to actually be a liability in battle, since they essentially act as exposed ammo racks before they're dropped. They can be shot at, and if destroyed, they have a chance to detonate, instantly destroying the boat.<br />
<br />
Despite this, some success can be had in dropping them either next to, or in front of a large, slow target. If dropping them next to the target, remember the depth charge drop order, since it's most likely that only the depth charges dropped on the side closest to the enemy will deal any damage. If dropping in front of the target, rush in from the sides as quickly as possible and drop them all at once directly in front of the target. For both cases, set the depth charge time delay to the minimum 3 seconds, since any higher time delay will only allow the depth charge to sink further away from the target, giving them more time to move out of the way. Again, using depth charges is extremely situational, and they will only be a liability the vast majority of the time, so take them at your own discretion. <br />
<br />
'''Mines'''<br />
<br />
[[File:{{PAGENAME}}_Mine_Order.png|thumb|Type M Mk I mines numbered according to their drop order (click to view a larger image).]]<br />
<br />
The Type M Mk I mines are carried amidships, two on either side in front of the aft gun and similarly behind. They are dropped in the following order (see the image): aftmost to foremost and alternating from port to starboard, starting with the aftmost mine on the port side.<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="4" | Mine characteristics<br />
|-<br />
! Mass (kg)<br />
! Explosive type<br />
! Explosive mass (kg)<br />
! TNT equivalent (kg)<br />
|-<br />
| 600 || TNT || 227 || 227<br />
|}<br />
<br />
Like depth charges, naval mines are situational weapons that act like exposed ammunition racks if not dropped. However, because they do not automatically detonate, they are much more useful. With mines, Fairmile B (ML345) can play a utility role by using the mines to cut off narrow passageways and block capture points, then returning back to a friendly capture points to reload before repeating the process. This playstyle is still very situational, though, as it requires misplay on the enemy's part. Mines have a marker in all gamemodes an enemy players will receive a warning when too close to one, so most players will destroy the mines with gunfire or will simply sail around them. Additionally, mines will also despawn after some period of time, so complete coverage of the entire map is not possible. This playstyle also forces Fairmile B (ML345) to the front lines, which is undesirable due to her poor gun armament.<br />
<br />
Alternatively, mines can also be used in a more proactive role, essentially like a better depth charge as described above, since they have no detonation time delay and have a much larger explosive charge. If using them like this, remember the drop order; it is not the same as the depth charge drop order. All said, mines are still only situationally useful, so take them based on personal preference. <br />
<br />
== Usage in battles ==<br />
<!-- ''Describe the technique of using this ship, the characteristics of her use in a team and tips on strategy. Abstain from writing an entire guide – don't try to provide a single point of view, but give the reader food for thought. Talk about the most dangerous opponents for this vehicle and provide recommendations on fighting them. If necessary, note the specifics of playing with this vehicle in various modes (AB, RB, SB).'' --><br />
<br />
Fairmile B (ML345) has the same primary armament as the previous Fairmile boat, the {{Specs-Link|uk_fairmile_a_ml100}}, although with a few differences. Most notably, the gun is now mounted on the bow, which greatly increases its versatility. The gun is also now equipped with a gun shield and can now elevate to 70°, though neither of these really change the gun's effectiveness; the gun shield can easily be penetrated by almost any sort of gunfire and the increased elevation is meaningless without proper anti-aircraft rounds. Arguably, the gun shield actually makes the gun worse as there is now a greater surface area to target to knock out the gun. Unfortunately, the gun's many weaknesses remain the same. The 3 pdr cannon, like all single-shot weapons of this calibre, has an abysmal damage output that is easily outclassed by any autocannon. Additionally, the accuracy is poor, which, together with the low muzzle velocity and projectile mass, limits the cannon's effective range. These same problems are also present in the anti-aircraft armament. The usefulness of the 7.72 mm Lewis 1916 machineguns are limited in the same way by their poor damage output and low maximum range.<br />
<br />
In contrast, secondary armament is much more capable. Sporting three 20 mm/70 Oerlikon cannons, just one of these by itself will outperform the 3 pdr QF Hotchkiss cannon in damage output. Because of this, Fairmile B (ML345) should be played while controlling the secondary armament, rather than the primary armament. That said, the secondary guns do have their own downsides. First, neither gun mount can fire directly forwards. Second, and more significantly, neither mount can traverse a full 360°, meaning that there will be several seconds of delay between switching from one side of the boat to the other. To avoid this, preemptively turn the guns to the side you most expect enemies to be and try to keep all enemies on only one side of the boat to avoid having to constantly switch directions. Because of the strong armament, Fairmile B (ML345) can be played more aggressively than most of the previous vessels in the tech tree, although keep in mind that the survivability is essentially the same as the Fairmile A (ML100), so stick with the team and make use of cover whenever possible. As with most autocannons and machine guns, be proactive with the reloads. If there isn't much ammunition left in the magazine after an engagement, fire off any remaining ammunition in the 20 mm/70 Oerlikon cannons to begin reloading in safety, retreating to do so if necessary. For Fairmile B (ML345), consider doing this when there are around 60 rounds or less between the three guns.<br />
<br />
One thing of note with Fairmile B (ML345) is the large ammunition storage located in the bow. While it generally doesn't tend to be much of an issue against machine guns and low-calibre autocannons, large-calibre HE can easily set it off. Luckily, this weak spot can be eliminated, albeit at the cost of the 3 pdr cannon, by taking the minimum amount of ammo for that gun and firing all of it off immediately after spawning, emptying the ammo storage. While you do lose use of the 3 pdr cannon, the cannon isn't very useful in and of itself, so if you plan on primarily using the secondary armament anyway, the cost of losing the 3 pdr cannon is outweighed by the increase in survivability.<br />
<br />
Lastly, keep in mind that while controlling the secondary armament, there won't be any effective anti-aircraft guns. The 3 pdr cannon is practically useless against aircraft, and the Lewis machine guns only begin firing once a target is within 1 km, so it's important to manually scan the sky for aircraft. Do not rely on either the primary or anti-aircraft armament for AA defense, but rather, use them as a warning indicator. If they start firing, then you know there is an aircraft nearby, at which point you can either shoot it down yourself, or if you're not confident with your aim, switch away from the secondary armament to give the AI gunners control of the cannons.<br />
<br />
=== Pros and cons ===<br />
<!-- ''Summarise and briefly evaluate the vehicle in terms of its characteristics and combat effectiveness. Mark its pros and cons in the bulleted list. Try not to use more than 6 points for each of the characteristics. Avoid using categorical definitions such as "bad", "good" and the like - use substitutions with softer forms such as "inadequate" and "effective".'' --><br />
<br />
'''Pros:'''<br />
<br />
* Powerful secondary armament<br />
* Ability to carry mines<br />
<br />
'''Cons:'''<br />
<br />
* Very weak primary and anti-air armaments: poor damage output and low effective range<br />
* Prominent ammunition storage in the bow<br />
* Below-average top speed and manoeuvrability<br />
<br />
== History ==<br />
<!-- ''Describe the history of the creation and combat usage of the ship in more detail than in the introduction. If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the ship and adding a block "/History" (example: <nowiki>https://wiki.warthunder.com/(Ship-name)/History</nowiki>) and add a link to it here using the <code>main</code> template. Be sure to reference text and sources by using <code><nowiki><ref></ref></nowiki></code>, as well as adding them at the end of the article with <code><nowiki><references /></nowiki></code>. This section may also include the ship's dev blog entry (if applicable) and the in-game encyclopedia description (under <code><nowiki>=== In-game description ===</nowiki></code>, also if applicable).'' --><br />
<br />
The Fairmile B motor launch originated as an Admiralty design in mid-1939. At the time, the Admiralty was faced with a severe lack of anti-submarine boats. An existing design by the Fairmile Marine Company, the Fairmile A type, was in the works, but a prototype had yet to be produced. Still, the Admiralty saw many issues with the design, largely stemming from its hard chine hull. The Admiralty created a wooden motor launch design of similar dimensions to the Fairmile A type but with a round bilge hull design instead. This design underwent trials later that year and proved itself to be vastly superior to the Fairmile A type in its seakeeping ability. Impressed by the decentralized production scheme of the Fairmile A type, the contract to mass-produce the new design was awarded to the Fairmile Company with an initial order for 13 vessels placed on 22nd September 1939. Like the Fairmile A type, the new design would be manufactured from prefabricated parts under Fairmile's production scheme. Under this system, parts and materials would be sourced from local companies and assembled at Fairmile factories as near to completion as possible. The parts could then be sent in kit form ready for final assembly to any boatyard around the world.<br />
<br />
The new design, now known as the Fairmile B type motor launch, had a length of 112 ft, a beam of 18 ft 3 in, and a draught of around 5 ft. As originally designed, the boats were to be powered by three Hall-Scott Defender petrol engines, 600 bph each, provided under Lend-Lease from America. However, due to a shortage of supply from the American manufacturer, it was reluctantly decided that the boats should instead be powered by only two engines, the loss in speed deemed acceptable if it meant that production could potentially be increased by 50%. With only two engines, the Fairmile B type could achieve a maximum speed of 20 knots. With a fuel capacity of 2,305 gallons, they had a range of 1,500 miles at 12 knots, though above-deck fuel tanks would frequently be added to further increase the operational range.<br />
<br />
Unlike the Fairmile A type, the question of the Fairmile B type's armament was decided from the beginning. The Fairmile B type was originally designed for anti-submarine work, specified to be able to carry 12 depth charges and ASDIC sonar equipment. Its intended role was also reflected in its gun armament: one 3-pdr Hotchkiss cannon aft and a pair of Lewis guns forward. Very early on, it was decided that the Fairmile B type should also have the option for variations in its armament. To achieve this, steel strips with tapped holes were installed on the deck onto which any desired armament could be mounted. For the boat to be refitted, all that needed to be done was to unbolt the old armament and swap in the new armament. Because of this, the Fairmile B type could incredibly be entirely refitted in just 48 hours. Due to this modular armament design, the Fairmile B types would often receive many armament refits for a variety of roles — including as minesweepers, minelayers, convoy escorts, submarine chasers, gun boats, air-sea rescue launches, and even as motor torpedo boats — depending on what was needed of them in the areas they were assigned to.<br />
<br />
Over the course of World War II, Fairmile B type parts kits would be shipped to various boatyards all throughout the British Empire and Commonwealth. From Jamaica to Singapore, Canada to New Zealand, over 650 Fairmile B types were built from 1940 to 1945. During the war, the Fairmile B types were operated by the Royal Navy, the Royal Canadian Navy, the Royal Australian Navy, the Royal New Zealand Navy, the Royal Indian Navy, the Free French Naval Forces, and the Royal Norwegian Navy. They repeatedly proved their worth, making up for their lack of speed with efficiency, versatility, and reliability. After the war, with the need for so many boats gone, many of the surviving Fairmile B types in Royal Navy service would be scrapped or sold as pleasure boats, though some Fairmile B types were either sold or given to many minor navies, including the Italian Navy, the Royal Netherlands Navy, the South African Navy, the Burmese Navy, the Royal Hellenic Navy, the South African Navy, and the Turkish Navy, which all continued to operate them for many years after the war.<br />
<br />
ML-345 was a Fairmile B type motor launch ordered on 21st August 1940. She was built by Diesel Constructors at Isleworth, London and was completed on 30th March 1942. ML-345 survived the war and was eventually sold in 1946.<br />
<br />
== Media ==<br />
<!-- ''Excellent additions to the article would be video guides, screenshots from the game, and photos.'' --><br />
<br />
;'''Skins'''<br />
<br />
* [https://live.warthunder.com/feed/camouflages/?vehicleCountry=britain&vehicleType=ship&vehicleClass=gun_boat&vehicle=uk_fairmile_b_ml345 Skins and camouflages for the {{PAGENAME}} from live.warthunder.com.]<br />
<br />
== See also ==<br />
<!-- ''Links to articles on the War Thunder Wiki that you think will be useful for the reader, for example:''<br />
* ''reference to the series of the ship;''<br />
* ''links to approximate analogues of other nations and research trees.'' --><br />
<br />
* {{Specs-Link|uk_fairmile_a_ml100}}<br />
* {{Specs-Link|uk_70ft_mgb}}<br />
* {{Specs-Link|uk_dark_class}}<br />
<br />
== External links ==<br />
<!-- ''Paste links to sources and external resources, such as:''<br />
* ''topic on the official game forum;''<br />
* ''encyclopedia page on ship;''<br />
* ''other literature.'' --><br />
<br />
* [http://cfv.org.uk/research/boat/database <nowiki>[Coastal Forces Veterans]</nowiki> Boat Database]<br />
<br />
===Bibliography===<br />
<br />
* Gaumont British News. (Producer). & White, W. B. (Director). (1941). ''THE STORY OF THE FAIRMILE PATROL BOAT'' [Film]. England: Gaumont British News.<br />
* Konstam, A. (2010). ''British Motor Gun Boat 1939–45'' (pp. 12-15, 40-41). Oxford, England: Osprey Publishing. ISBN 978-1-84908-077-4.<br />
* Lambert, J., & Ross A. (1990). ''Allied Coastal Forces of World War II Volume 1: Fairmile Designs and U.S. Submarine Chasers'' (pp. 9-28). London, England: Conway Maritime Press. ISBN 0-85177-519-5.<br />
<br />
{{Britain boats}}</div>U27474208https://old-wiki.warthunder.com/index.php?title=Fairmile_A_(ML100)&diff=107834Fairmile A (ML100)2021-07-29T01:26:37Z<p>U27474208: Updated to 2.7; added penetration by shell and shell details</p>
<hr />
<div>{{Specs-Card<br />
|code=uk_fairmile_a_ml100<br />
|images={{Specs-Card-Image|GarageImage_{{PAGENAME}}.jpg}}<br />
}}<br />
<br />
== Description ==<br />
<!-- ''In the first part of the description, cover the history of the ship's creation and military application. In the second part, tell the reader about using this ship in the game. Add a screenshot: if a beginner player has a hard time remembering vehicles by name, a picture will help them identify the ship in question.'' --><br />
The '''{{Specs|name}}''' is a rank {{Specs|rank}} British motor gun boat {{Battle-rating}}. It was introduced in [[Update 1.83 "Masters of the Sea"]] as part of the British fleet closed beta test. With the split of the naval tech trees in [[Update "New Power"]], {{PAGENAME}} was moved to the coastal fleet tech tree.<br />
<br />
== General info ==<br />
=== Survivability and armour ===<br />
{{Specs-Fleet-Armour}}<br />
<!-- ''Talk about the vehicle's armour. Note the most well-defended and most vulnerable zones, e.g. the ammo magazine. Evaluate the composition of components and assemblies responsible for movement and manoeuvrability. Evaluate the survivability of the primary and secondary armaments separately. Don't forget to mention the size of the crew, which plays an important role in fleet mechanics. Save tips on preserving survivability for the "Usage in battles" section. If necessary, use a graphical template to show the most well-protected or most vulnerable points in the armour.'' --><br />
<br />
[[File:{{PAGENAME}}_Internals.png|thumb|{{PAGENAME}} internals (starboard). The aft ammunition storage is partially obscured by the fuel tanks here.]]<br />
<br />
Fairmile A (ML100) has the following armour layout:<br />
<br />
* Hull: 24 mm, wood<br />
* Superstructure: 2 mm, steel<br />
<br />
Any gun in the game will easily be able to penetrate the hull and superstructure at any practical range.<br />
<br />
The hull is split into four sections. The first compartment starts at the bow and ends in the middle of the bridge, just in front of the pumps; the second ends just between the radio station and the engines, around the funnel; the third ends in front of the aft gun mount; and the fourth ends at the stern. <br />
<br />
Fairmile A (ML100) can be hull-broken by any round with a large enough diameter and explosive mass. In general, this is limited to HE rounds greater with a diameter greater than or equal to 4 inches (102 mm) with an explosive mass greater than 1.5 kg. At Fairmile A (ML100)'s own battle rating, there is only one gun capable of hull-breaking her:<br />
<br />
* the [[8cwt QF Mk I (114 mm)|114 mm 8cwt QF Mk I]], found on {{Specs-Link|uk_dark_class}}.<br />
<br />
There are two ammunition storages: the first, holding the ammunition for the secondary armament, is located in the bow below the fore twin 7.72 mm Lewis 1916 machine gun mount. The other ammunition storage, holding the ammunition for the primary armament, is located in the stern on the port side, below and behind the aft 3 pdr QF Hotchkiss cannon. Both ammunition storages are located just above the waterline and destroying either will instantly destroy the boat.<br />
<br />
Fairmile A (ML100) has a crew complement of 14. With a stock crew, it is knocked out when 9 crew are lost; with an aced crew, this is increased to 10. Overall, the survivability is average.<br />
<br />
=== Mobility ===<br />
{{Specs-Fleet-Mobility}}<br />
<!-- ''Write about the ship's mobility. Evaluate its power and manoeuvrability, rudder rerouting speed, stopping speed at full tilt, with its maximum forward and reverse speed.'' --><br />
<br />
{{NavalMobility<br />
|SpeedForwardStockAB = 46<br />
|SpeedBackStockAB = 14<br />
|TurnTimeStockAB = 40.88<br />
|TurnSpeedStockAB = 34<br />
<br />
|TurnTimeSpadedAB = 26.99<br />
|TurnSpeedSpadedAB = 33<br />
<br />
|SpeedForwardStockRB = 40<br />
|SpeedBackStockRB = 12<br />
|TurnTimeStockRB = 47.12<br />
|TurnSpeedStockRB = 34<br />
<br />
|TurnTimeSpadedRB = 37.33<br />
|TurnSpeedSpadedRB = 34<br />
}}<br />
<br />
Fairmile A (ML100) has a displacement of 57 tons.<br />
<br />
=== Modifications and economy ===<br />
{{Specs-Economy}}<br />
<br />
The recommended modification research order is:<br />
<br />
# Tool Set<br />
# Fire Protection System<br />
# 7.7 mm API belt<br />
# Smokescreen<br />
# Propeller Replacement<br />
# Improved Rangefinder<br />
# Artillery Support<br />
<br />
After that, prioritize researching the rest of the seakeeping modifications, followed by the remaining modifications in whatever order you prefer.<br />
<br />
== Armament ==<br />
{{Specs-Fleet-Armaments}}<br />
=== Primary armament ===<br />
{{Specs-Fleet-Primary}}<br />
<!-- ''Provide information about the characteristics of the primary armament. Evaluate their efficacy in battle based on their reload speed, ballistics and the capacity of their shells. Add a link to the main article about the weapon: <code><nowiki>{{main|Weapon name (calibre)}}</nowiki></code>. Broadly describe the ammunition available for the primary armament, and provide recommendations on how to use it and which ammunition to choose.'' --><br />
{{main|3 pdr QF Hotchkiss (47 mm)}}<br />
<br />
The primary armament consists of a single 47 mm 3 pdr QF Hotchkiss cannon mounted aft, with a maximum of 300 rounds of ammunition. Stock, the mount can traverse horizontally at a rate of 34°/s and vertically at a rate of 21°/s; with the "Primary Armament Targeting" modification installed, this is increased to 40°/s and 25°/s respectively. The gun is single-shot with a nominal rate of fire of 30 rounds/min. With a stock crew, it can be reloaded in 2.6 seconds; with an aced crew, it can be reloaded in 2 seconds.<br />
<br />
{| class="wikitable" style="text-align:center" width="25%"<br />
! colspan="2" | Primary armament guidance<br />
|-<br />
! Horizontal !! Vertical<br />
|-<br />
| ±180° || -5°/+25°<br />
|-<br />
|}<br />
<br />
There is only one ammunition type available:<br />
<br />
* 3 pdr Mk.2 HE<br />
<br />
{| class="wikitable" style="text-align:center" width="100%"<br />
! colspan="8" | Penetration statistics<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! rowspan="2" | Type of<br>warhead<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 100 m !! 1,000 m !! 2,000 m !! 3,000 m !! 4,000 m !! 5,000 m<br />
|-<br />
| 3 pdr Mk.2 HE || {{Annotation|HE|High-explosive}} || 4 || 4 || 4 || 4 || 4 || 4<br />
|-<br />
|}<br />
{| class="wikitable" style="text-align:center" width="100%"<br />
! colspan="10" | Shell details<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! rowspan="2" | Type of<br>warhead<br />
! rowspan="2" | Velocity<br>(m/s)<br />
! rowspan="2" | Projectile<br>Mass (kg)<br />
! rowspan="2" | Fuse delay<br>(m)<br />
! rowspan="2" | Fuse sensitivity<br>(mm)<br />
! rowspan="2" | Explosive Mass<br>(TNT equivalent) (g)<br />
! colspan="3" | Ricochet<br />
|-<br />
! 0% !! 50% !! 100%<br />
|-<br />
| 3 pdr Mk.2 HE || {{Annotation|HE|High-explosive}} || 571 || 1.5 || 0 || 0.1 || 132 || 79° || 80° || 81°<br />
|-<br />
|}<br />
<br />
=== Secondary armament ===<br />
{{Specs-Fleet-Secondary}}<br />
<!-- ''Some ships are fitted with weapons of various calibres. Secondary armaments are defined as weapons chosen with the control <code>Select secondary weapon</code>. Evaluate the secondary armaments and give advice on how to use them. Describe the ammunition available for the secondary armament. Provide recommendations on how to use them and which ammunition to choose. Remember that any anti-air armament, even heavy calibre weapons, belong in the next section. If there is no secondary armament, remove this section.'' --><br />
{{main|Lewis 1916 (7.72 mm)}}<br />
<br />
The secondary armament consists of six 7.72 mm Lewis 1916 machineguns in three twin mounts, one mount on the bow and the other two amidships. There are 3,880 rounds of ammunition available for each mount, 1,940 rounds per gun, for a total of 11,640 rounds. Stock, the mounts can traverse horizontally at a rate of 64°/s and vertically at a rate of 55°/s; with the "Auxiliary Armament Targeting" modification installed, this is increased to 75°/s and 65°/s respectively. Each gun has a magazine capacity of 97 rounds and a cyclic rate of fire of around 550 rounds/min. With a stock crew, the guns can be reloaded in 18.2 seconds; with an aced crew, they can be reloaded in 14 seconds.<br />
<br />
{{Notice|Turrets are named sequentially, clockwise, starting at the bow}}<br />
<br />
{| class="wikitable" style="text-align:center" width="75%"<br />
! colspan="6" | Secondary armament guidance<br />
|-<br />
! colspan="2" rowspan="1" | No.1 Turret (fore)<br />
! colspan="2" rowspan="1" | No.2 Turret (starboard)<br />
! colspan="2" rowspan="1" | No.3 Turret (port)<br />
|-<br />
! Horizontal !! Vertical !! Horizontal !! Vertical !! Horizontal !! Vertical<br />
|-<br />
| ±180° || -5°/+70° || ±80° || -5°/+70° || ±80° || -5°/+70°<br />
|-<br />
|}<br />
<br />
There are three ammunition types available:<br />
<br />
* Universal: {{Annotation|AP|Armour-piercing}}{{-}}{{Annotation|T|Tracer}}{{-}}{{Annotation|AP|Armour-piercing}}{{-}}{{Annotation|T|Tracer}}<br />
<br />
* 7.7 mm AP belt: {{Annotation|AP|Armour-piercing}}{{-}}{{Annotation|AP|Armour-piercing}}{{-}}{{Annotation|AP|Armour-piercing}}{{-}}{{Annotation|T|Tracer}}<br />
<br />
* 7.7 mm API belt: {{Annotation|IT|Incendiary tracer}}{{-}}{{Annotation|IT|Incendiary tracer}}{{-}}{{Annotation|IT|Incendiary tracer}}{{-}}{{Annotation|AP|Armour-piercing}}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="7" | Penetration statistics (belt)<br />
|-<br />
! rowspan="2" data-sort-type="text" | Belt<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| Universal || 10 || 9 || 8 || 7 || 6 || 5<br />
|-<br />
| 7.7 mm AP belt || 10 || 9 || 8 || 7 || 6 || 5<br />
|-<br />
| 7.7 mm API belt || 10 || 9 || 8 || 7 || 6 || 5<br />
|-<br />
|}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="8" | Penetration statistics (shell)<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! rowspan="2" | Type of<br>warhead<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| AP || {{Annotation|AP|Armour-piercing}} || 10 || 9 || 8 || 7 || 6 || 5<br />
|-<br />
| T || {{Annotation|T|Tracer}} || 9 || 8 || 7 || 6 || 5 || 4<br />
|-<br />
| IT || {{Annotation|IT|Incendiary tracer}} || 10 || 9 || 7 || 6 || 5 || 5<br />
|-<br />
|}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="10" | Shell details<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! rowspan="2" | Type of<br>warhead<br />
! rowspan="2" | Velocity<br>(m/s)<br />
! rowspan="2" | Projectile<br>Mass (kg)<br />
! rowspan="2" | Fuse delay<br>(m)<br />
! rowspan="2" | Fuse sensitivity<br>(mm)<br />
! rowspan="2" | Explosive Mass<br>(TNT equivalent) (g)<br />
! colspan="3" | Ricochet<br />
|-<br />
! 0% !! 50% !! 100%<br />
|-<br />
| AP || {{Annotation|AP|Armour-piercing}} || 853 || 0.01 || N/A || N/A || N/A || 47° || 56° || 65°<br />
|-<br />
| T || {{Annotation|T|Tracer}} || 835 || 0.01 || N/A || N/A || N/A || 47° || 56° || 65°<br />
|-<br />
| IT || {{Annotation|IT|Incendiary tracer}} || 920 || 0.01 || N/A || N/A || N/A || 47° || 56° || 65°<br />
|-<br />
|}<br />
<br />
While the armour-piercing round and the the incendiary tracer round deal about the same amount of the damage, the standard tracer round deals incredibly little damage to both surface targets and aircraft. Because of this, the AP belt is a strict upgrade from the default belt. Compared to the AP rounds, the IT rounds also have a much higher muzzle velocity. Altogether, this makes the API belt the best overall, due both to its lack of standard tracer rounds and better balistic properties.<br />
<br />
=== Additional armament ===<br />
{{Specs-Fleet-Additional}}<br />
<!-- ''Describe the available additional armaments of the ship: depth charges, mines, torpedoes. Talk about their positions, available ammunition and launch features such as dead zones of torpedoes. If there is no additional armament, remove this section.'' --><br />
{{main|Mk.VII depth charge|Type M Mark I mine}}<br />
<br />
{{PAGENAME}} has three possible loadouts:<br />
<br />
# 12x Mk.VII depth charge<br />
# 5x Type M Mk I mines<br />
# Without load<br />
<br />
'''Depth Charges'''<br />
<br />
[[File:{{PAGENAME}}_DC_Order.png|thumb|Mk.VII depth charges numbered according to their drop order (click to view a larger image).]]<br />
<br />
The Mk.VII depth charges are carried in racks amidships between the funnel and the aft gun mount, six on each side. They are dropped in the following order: foremost to aftmost and alternating port to starboard, starting with the foremost depth charge on the port side.<br />
<br />
Before spawning, the detonation time delay can be set anywhere between 3 seconds and 10 seconds.<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="7" | Depth charge characteristics<br />
|-<br />
! Mass (kg)<br />
! Explosive type<br />
! Explosive mass (kg)<br />
! TNT equivalent (kg)<br />
! HE armour penetration (mm)<br />
! Armoured vehicle destruction radius (m)<br />
! Fragment dispersion radius (m)<br />
|-<br />
| 196 || TNT || 130 || 130 || 101 || 8 || 122 <br />
|}<br />
<br />
There is almost no practical reason to use depth charges on any naval vessel in the game. Although they usually result in a one-hit kill if used properly, they are extremely situational, requiring the player to close to point-blank ranges to even use them. In almost every case, anytime a depth charge could be used, the guns or torpedoes can be used instead to greater effect. In fact, depth charges tend to actually be a liability in battle, since they essentially act as exposed ammo racks before they're dropped. They can be shot at, and if destroyed, they have a chance to detonate, instantly destroying the boat.<br />
<br />
Despite this, some success can be had in dropping them either next to, or in front of a large, slow target. If dropping them next to the target, remember the depth charge drop order, since it's most likely that only the depth charges dropped on the side closest to the enemy will deal any damage. If dropping in front of the target, rush in from the sides as quickly as possible and drop them all at once directly in front of the target. For both cases, set the depth charge time delay to the minimum 3 seconds, since any higher time delay will only allow the depth charge to sink further away from the target, giving them more time to move out of the way. Again, using depth charges is extremely situational, and they will only be a liability the vast majority of the time, so take them at your own discretion.<br />
<br />
'''Mines'''<br />
<br />
[[File:{{PAGENAME}}_Mine_Order.png|thumb|Type M Mk I mines numbered according to their drop order (click to view a larger image).]]<br />
<br />
The Type M Mk I mines are carried one on the stern and four amidships between the funnel and the aft gun mount, two on each side. They are dropped in the following order:<br />
<br />
# Stern<br />
# Port, foremost<br />
# Port, aftmost<br />
# Starboard, foremost<br />
# Starboard, aftmost<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="4" | Mine characteristics<br />
|-<br />
! Mass (kg)<br />
! Explosive type<br />
! Explosive mass (kg)<br />
! TNT equivalent (kg)<br />
|-<br />
| 600 || TNT || 227 || 227<br />
|}<br />
<br />
Like depth charges, naval mines are situational weapons that act like exposed ammunition racks if not dropped. However, because they do not automatically detonate, they are much more useful. With mines, Fairmile A (ML100) can play a utility role by using the mines to cut off narrow passageways and block capture points, then returning back to a friendly capture points to reload before repeating the process. This playstyle is still very situational, though, as it requires misplay on the enemy's part. Mines have a marker in all gamemodes an enemy players will receive a warning when too close to one, so most players will destroy the mines with gunfire or will simply sail around them. Additionally, mines will also despawn after some period of time, so complete coverage of the entire map is not possible. This playstyle also forces Fairmile A (ML100) to the front lines, which is undesirable due to her poor gun armament.<br />
<br />
Alternatively, mines can also be used in a more proactive role, essentially like a better depth charge as described above, since they have no detonation time delay and have a much larger explosive charge. If using them like this, remember the drop order; it is not the same as the depth charge drop order. All said, mines are still only situationally useful, so take them based on personal preference.<br />
<br />
== Usage in battles ==<br />
<!-- ''Describe the technique of using this ship, the characteristics of her use in a team and tips on strategy. Abstain from writing an entire guide – don't try to provide a single point of view, but give the reader food for thought. Talk about the most dangerous opponents for this vehicle and provide recommendations on fighting them. If necessary, note the specifics of playing with this vehicle in various modes (AB, RB, SB).'' --><br />
<br />
Fairmile A (ML100)'s primary armament — a single 3 pdr QF Hotchkiss cannon — is rather poor. It's a single-shot cannon and, while it is fairly average compared to similar weapons, all single-shot cannons at this calibre have incredibly poor damage output and will be outperformed by almost any automatic weapon. The gun's accuracy also is unreliable, and, combined with the low muzzle velocity, hitting moving targets beyond about 1.5 km can be difficult. Additionally, the gun is mounted on the stern which only further reduces its versatility. Unfortunately, the secondary armament doesn't fare much better. Because of their arrangement, only two of the four twin mounts can be brought to bear at once. This essentially limits Fairmile A (ML100) to only half that of {{Specs-Link|uk_mtb_1series}}, whose armament wasn't very outstanding to begin with. Like the 3 pdr QF Hotchkiss, the 7.72 mm Lewis 1916 machine guns are themselves plagued by poor damage output and a low maximum range. Even so, with only four of them on target, their damage output actually ends up being better than the 3 pdr cannon, so primarily use the machine guns and only switch to the cannon if they get knocked out.<br />
<br />
Because of the bad damage output, Fairmile A (ML100) will feel much less survivable compared to other similar vessels, despite actually having a larger crew. Ironically, the greatest determining factor of a vessel's survivability is actually its firepower rather than any direct defensive quality. Fairmile A (ML100) is simply unable to destroy enemies as quickly as others can and will thus be subject to enemy fire for longer periods of time. Because of this, it is especially important to maximize damage output when playing Fairmile A (ML100). Only fire when you know the shots will land and prioritize disabling enemy weaponry. Additionally, the reloads are quite long, so be proactive with the reloads by firing off any remaining ammunition after engagements.<br />
<br />
Like MTB-1 1 series or anything else armed with low-calibre machine guns, Fairmile A (ML100) is best played at close ranges to negate the guns' range disadvantage. Unlike those though, Fairmile A (ML100) lacks the firepower necessary to stay on the front line, so try to stay on the sides and make use of cover as much as possible. From there, play a supporting role by ambushing enemies distracted by your teammates. Whenever possible, only fire at enemies you know you can take out to avoid drawing any unnecessary attention to yourself. For example, any vessels with armour whatsoever will be practically immune to both the machine guns and the cannon, so if you come up against such opponents, as long as they don't notice you, it's best to just mark them on the map for your team, call artillery, and then simply let them pass.<br />
<br />
=== Pros and cons ===<br />
<!-- ''Summarise and briefly evaluate the vehicle in terms of its characteristics and combat effectiveness. Mark its pros and cons in the bulleted list. Try not to use more than 6 points for each of the characteristics. Avoid using categorical definitions such as "bad", "good" and the like - use substitutions with softer forms such as "inadequate" and "effective".'' --><br />
<br />
'''Pros:'''<br />
<br />
* Ability to carry mines<br />
<br />
'''Cons:'''<br />
<br />
* Very weak armament: both primary and secondary guns have low damage outputs<br />
* Primary armament has poor accuracy<br />
* Only 4 secondary guns can be brought to bear at once<br />
* Poor survivability<br />
* Below-average top speed and manoeuvrability<br />
<br />
== History ==<br />
<!-- ''Describe the history of the creation and combat usage of the ship in more detail than in the introduction. If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the ship and adding a block "/History" (example: <nowiki>https://wiki.warthunder.com/(Ship-name)/History</nowiki>) and add a link to it here using the <code>main</code> template. Be sure to reference text and sources by using <code><nowiki><ref></ref></nowiki></code>, as well as adding them at the end of the article with <code><nowiki><references /></nowiki></code>. This section may also include the ship's dev blog entry (if applicable) and the in-game encyclopedia description (under <code><nowiki>=== In-game description ===</nowiki></code>, also if applicable).'' --><br />
<br />
In early 1939, Noel Macklin, a British industrialist, first became aware of the Royal Navy's lack of anti-submarine craft through an article by Vice-Admiral Cecil Vivian Usborne. Realizing the growing danger of German U-boats, and because the Royal Navy was already stretched thin as it was, Usborne advised the Admiralty to adopt a vast fleet of anti-submarine boats to counter the threat. This, however, was largely dismissed by the Admiralty, and in response, Macklin devised his own plan to manufacture the boats. Under his plan, prefabricated parts, built as near to completion as possible, would be sent in kit form ready for final assembly and fitting to the many minor boatbuilding companies throughout the country. This would allow parts and materials to be sourced from companies with no boatbuilding experience and assembled by unskilled labour at unutilized boatyards. Under this decentralized system, the boats could be manufactured quicker and cheaper than had they been manufactured at a single yard, all the while without straining major boatbuilding companies — such as Vospers, British Power Boat Co., White, or Thornycroft — which were all vital in producing specialized, high-speed MTBs and MGBs. Macklin met with Usborne in May 1939 to discuss his idea, and together, they immediately began assembling a team of naval engineers and designers, founding the Fairmile Marine Company. Fairmile quickly produced a wooden motor launch design and proposed the idea to the Admiralty. Ultimately, though, the Admiralty declined to make an order. Nevertheless, convinced in the idea, Fairmile proceeded to produce a prototype as a private venture.<br />
<br />
The prototype was ordered from Woodnutt & Co. at St Helens, Isle of Wight, on 27th July 1939 and was laid down on 29th October 1939. It had a hard chine hull and had a length overall of 110 ft, a beam of 17 ft 5 in, a draught of 4 ft 6 in, and a displacement of around 57 tons. It was powered by three Hall-Scott Defender petrol engines, each producing 600 bhp each, allowing it to achieve a top speed of 25 knots. At this time, with the prospect of war approaching ever closer, the Admiralty had no choice but to acknowledge the serious submarine threat and reconsidered Macklin's proposal. While the prototype was still under construction, the Admiralty purchased it in the summer of 1939. This order was followed by another on 22nd September 1939 for an additional 24 boats, although this was later revised to 11 Fairmile designs — the Fairmile A type — and 13 boats of a new Admiralty design — the Fairmile B type. The twelve Fairmile A motor launches were built by ten different companies and were all completed between May and June 1940, all twelve entering service shortly thereafter as MLs 100-111.<br />
<br />
Interestingly, the Fairmile A types were ordered by the Admiralty without a specified armament. As such, the decks of the boats were not built to take heavy mounting equipment. As a stopgap measure, it was decided that they should be armed with a single aft QF 3-pdr Hotchkiss cannon and several twin Lewis gun pintle mounts, with one on the bow and a pair of mounts amidships. For hunting U-boats, the boats were given ASDIC equipment and depth charge racks, one on each side, capable of carrying up to six depth charges each. Early into service, the boats also received a Holman projector which was mounted amidships. In their first months at war, the Fairmile A types hunted U-boats and protected convoys in British coastal waters.<br />
<br />
Throughout their service, though, the Fairmile A types were plagued by their handling issues and short operational range. By 1941, with the superior Fairmile B type motor launches already in service, any surviving Fairmile A types were converted into minelayers, their depth charge racks replaced with mine racks capable of carrying either six bottom mines or nine moored mines. The 3-pdr Hotchkiss was relocated to the bow with twin 0.5 in Vickers machinegun Mark IV mount added in its place. As minelayers, their funnels were also removed, exhaust rerouted out through the sides instead. In 1943, the Fairmile A types received an upgrade in the form of a single 20 mm Oerlikon cannon in place of the removed funnel and an aft twin 20 mm Oerlikon Mark IX mount. By 1945, any surviving Fairmile A types were converted once again, this time into anti-submarine escorts. As part of this conversion, they received depth charge racks, a Y-gun depth charge thrower, Type 291 radar, and two 2-inch rocket flare launchers. After the end of the war, the surviving Fairmile A types were put into reserve and were all eventually sold between 1947 and 1948.<br />
<br />
As the prototype, ML-100 was the first of the Fairmile A types to be built. She was ordered from Woodnutt & Co. at St Helens on 27th July 1939, laid down on 29th October 1939, and completed on 19th May 1940. From 1940 to 1941, ML-100 was based at HMS Midge, Great Yarmouth and performed anti-submarine escort duties around Grisby. In either late 1941 or early 1942, ML-100 was converted for minelaying operations and was transferred to the 51st ML Flotilla based at HMS Beehive, Felixstowe. She was commanded by the following:<br />
<br />
* T/Lt. F.E.R. Merritt, RNZNVR: October 1942 to December 1943<br />
* T/Lt. G.A. Wright, RCNVR: February 1944 to April 1944<br />
* T/S.Lt. J.E. Branch, RNVR: June 1944 to October 1944<br />
* T/Lt. E.C. Mercer, RNVR: March 1945 to July 1945<br />
<br />
ML-100 survived the war and was sold in October 1947.<br />
<br />
== Media ==<br />
<!-- ''Excellent additions to the article would be video guides, screenshots from the game, and photos.'' --><br />
<br />
;'''Skins'''<br />
<br />
* [https://live.warthunder.com/feed/camouflages/?vehicleCountry=britain&vehicleType=ship&vehicleClass=gun_boat&vehicle=uk_fairmile_a_ml100 Skins and camouflages for the {{PAGENAME}} from live.warthunder.com.]<br />
<br />
== See also ==<br />
<!-- ''Links to articles on the War Thunder Wiki that you think will be useful for the reader, for example:''<br />
* ''reference to the series of the ship;''<br />
* ''links to approximate analogues of other nations and research trees.'' --><br />
<br />
* {{Specs-Link|uk_fairmile_b_ml345}}<br />
* {{Specs-Link|uk_mtb_1series}}<br />
* {{Specs-Link|uk_70ft_mgb}}<br />
<br />
== External links ==<br />
<!-- ''Paste links to sources and external resources, such as:''<br />
* ''topic on the official game forum;''<br />
* ''encyclopedia page on the ship;''<br />
* ''other literature.'' --><br />
<br />
* [http://cfv.org.uk/research/boat/database <nowiki>[Coastal Forces Veterans]</nowiki> Boat Database]<br />
* [https://www.unithistories.com/units_british/RN_CoastalForces.html#ML%20Boats <nowiki>[Unit Histories]</nowiki> Royal Navy Coastal Forces 1940-1945]<br />
* [http://www.naval-history.net/WW2BritishLosses3Coastal.htm <nowiki>[naval-history.net]</nowiki> British vessels lost at sea in World War 2 - MGB, MTB, SGB, ML, etc] - originally published in ''British Vessels Lost at Sea, 1935-45'', His Majesty's Stationary Office, 1947<br />
<br />
===Bibliography===<br />
<br />
* Gaumont British News. (Producer). & White, W. B. (Director). (1941). ''THE STORY OF THE FAIRMILE PATROL BOAT'' [Film]. England: Gaumont British News.<br />
* Konstam, A. (2010). ''British Motor Gun Boat 1939–45'' (pp. 12-15, 40-41). Oxford, England: Osprey Publishing. ISBN 978-1-84908-077-4.<br />
* Lambert, J., & Ross A. (1990). ''Allied Coastal Forces of World War II Volume 1: Fairmile Designs and U.S. Submarine Chasers'' (pp. 9-28). London, England: Conway Maritime Press. ISBN 0-85177-519-5.<br />
<br />
{{Britain boats}}</div>U27474208https://old-wiki.warthunder.com/index.php?title=MTB_Vosper(2)&diff=107702MTB Vosper(2)2021-07-27T12:16:43Z<p>U27474208: Updated to 2.7; added penetration by shell and shell details</p>
<hr />
<div>{{About<br />
| about = British motor torpedo boat '''{{PAGENAME}}'''<br />
| usage = other versions<br />
| link = MTB Vosper (Family)<br />
}}<br />
{{Specs-Card<br />
|code=uk_mtb_vosper_2series<br />
|images={{Specs-Card-Image|GarageImage_{{PAGENAME}}.jpg}}<br />
}}<br />
<br />
== Description ==<br />
<!-- ''In the first part of the description, cover the history of the ship's creation and military application. In the second part, tell the reader about using this ship in the game. Add a screenshot: if a beginner player has a hard time remembering vehicles by name, a picture will help them identify the ship in question.'' --><br />
The '''{{Specs|name}}''' is a rank {{Specs|rank}} British motor torpedo boat {{Battle-rating}}. It was introduced in [[Update 1.83 "Masters of the Sea"]] as part of the British fleet closed beta test. With the split of the naval tech trees in [[Update "New Power"]], {{PAGENAME}} was moved to the coastal fleet tech tree.<br />
<br />
== General info ==<br />
=== Survivability and armour ===<br />
{{Specs-Fleet-Armour}}<br />
<!-- ''Talk about the vehicle's armour. Note the most well-defended and most vulnerable zones, e.g. the ammo magazine. Evaluate the composition of components and assemblies responsible for movement and manoeuvrability. Evaluate the survivability of the primary and secondary armaments separately. Don't forget to mention the size of the crew, which plays an important role in fleet mechanics. Save tips on preserving survivability for the "Usage in battles" section. If necessary, use a graphical template to show the most well-protected or most vulnerable points in the armour.'' --><br />
<br />
[[File:{{PAGENAME}}_Internals.png|thumb|{{PAGENAME}} internals (starboard). Note the ammunition storage below the bridge.]]<br />
<br />
MTB Vosper(2) has the following armour layout:<br />
<br />
* [[20 mm/70 Oerlikon Mk.II (20 mm)|20 mm/70 Oerlikon Mk.II]] gun shield: 12.7 mm, hardened armour<br />
* Hull: 24 mm, wood<br />
* Superstructure: 15 mm, wood<br />
<br />
While the gun shield may stop low-calibre machineguns, heavy machineguns and cannons will have no trouble with them at any range. The hull and superstructure will not stop any sort of gunfire. <br />
<br />
The hull is split into three compartments. Starting from the bow and working towards the stern, the first compartment starts at the bow and ends at the forward gun mount; the second ends in front of the aft gun mount, between the fuel tanks and the engines; and the third ends at the stern. <br />
<br />
MTB Vosper(2) can be hull-broken by any round with a large enough diameter and explosive mass. In general, this is limited to HE rounds greater with a diameter greater than or equal to 4 inches (102 mm) with an explosive mass greater than 1.5 kg. At MTB Vosper(2)'s own battle rating, there is only one gun capable of hull-breaking her:<br />
<br />
* the [[8cwt QF Mk I (114 mm)|114 mm 8cwt QF Mk I]], found on {{Specs-Link|uk_dark_class}}.<br />
<br />
There is one ammunition storage that holds ammunition for both the primary armament and secondary armament. It is located directly below the bridge, just above the waterline. Destroying it will instantly destroy the boat.<br />
<br />
MTB Vosper(2) has a crew complement of 12. With a stock crew, it is knocked out when 8 crew are lost; with an aced crew, this is increased to 9. Overall, the survivability is average.<br />
<br />
=== Mobility ===<br />
{{Specs-Fleet-Mobility}}<br />
<!-- ''Write about the ship's mobility. Evaluate its power and manoeuvrability, rudder rerouting speed, stopping speed at full tilt, with its maximum forward and reverse speed.'' --><br />
<br />
{{NavalMobility<br />
|SpeedForwardStockAB = 76<br />
|SpeedBackStockAB = 26<br />
|TurnTimeStockAB = 23.68<br />
|TurnSpeedStockAB = 45<br />
<br />
|TurnTimeSpadedAB = 16.33<br />
|TurnSpeedSpadedAB = 43<br />
<br />
|SpeedForwardStockRB = 64<br />
|SpeedBackStockRB = 22<br />
|TurnTimeStockRB = 26.53<br />
|TurnSpeedStockRB = 46<br />
<br />
|TurnTimeSpadedRB = 21.99<br />
|TurnSpeedSpadedRB = 45<br />
}}<br />
<br />
MTB Vosper(2) has a displacement of 38 tons.<br />
<br />
When moving forwards at high speeds, the bow will drift slightly to starboard without any player input. When moving backwards, the bow drifts slightly to port.<br />
<br />
=== Modifications and economy ===<br />
{{Specs-Economy}}<br />
<br />
The recommended modification research order is:<br />
<br />
# Tool Set<br />
# Fire Protection System<br />
# 12.7 mm I belt or 20 mm HE<br />
# Smokescreen<br />
# Propeller Replacement<br />
# Artillery Support<br />
<br />
After that, prioritize the rest of the seakeeping modifications first, then research the remaining modifications in whatever order you prefer.<br />
<br />
== Armament ==<br />
{{Specs-Fleet-Armaments}}<br />
=== Primary armament ===<br />
{{Specs-Fleet-Primary}}<br />
<!-- ''Provide information about the characteristics of the primary armament. Evaluate their efficacy in battle based on their reload speed, ballistics and the capacity of their shells. Add a link to the main article about the weapon: <code><nowiki>{{main|Weapon name (calibre)}}</nowiki></code>. Broadly describe the ammunition available for the primary armament, and provide recommendations on how to use it and which ammunition to choose.'' --><br />
{{main|20 mm/70 Oerlikon Mk.II (20 mm)}}<br />
<br />
The primary armament consists of a single 20 mm/70 Oerlikon Mk.II mounted fore, with a maximum of 1,980 rounds of ammunition. Stock, the mount can traverse horizontally and vertically at a rate of 64°/s; with the "Primary Armament Targeting" modification installed, this is increased to 75°/s. The gun has a magazine capacity of 60 rounds and a cyclic rate of fire of around 450 rounds/min. With a stock crew, it can be reloaded in 5.2 seconds; with an aced crew, it can be reloaded in 4 seconds.<br />
<br />
{| class="wikitable" style="text-align:center" width="25%"<br />
! colspan="2" | Primary armament guidance<br />
|-<br />
! Horizontal !! Vertical<br />
|-<br />
| ±180° || -10°/+60°<br />
|-<br />
|}<br />
<br />
There are three ammunition types available:<br />
<br />
* Universal: {{Annotation|HEF-T|High-explosive fragmentation tracer}}{{-}}{{Annotation|HEF-I|High-explosive fragmentation incendiary}}{{-}}{{Annotation|AP-T|Armour-piercing tracer}}<br />
<br />
* 20 mm HE: {{Annotation|HEF-T|High-explosive fragmentation tracer}}{{-}}{{Annotation|HEF-I|High-explosive fragmentation incendiary}}{{-}}{{Annotation|AP-T|Armour-piercing tracer}}{{-}}{{Annotation|HEF-I|High-explosive fragmentation incendiary}}<br />
<br />
* 20 mm AP: {{Annotation|AP-T|Armour-piercing tracer}}{{-}}{{Annotation|AP-T|Armour-piercing tracer}}{{-}}{{Annotation|AP-T|Armour-piercing tracer}}{{-}}{{Annotation|HEF-I|High-explosive fragmentation incendiary}}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="7" | Penetration statistics (belt)<br />
|-<br />
! rowspan="2" data-sort-type="text" | Belt<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| Universal || 35 || 33 || 26 || 21 || 18 || 15<br />
|-<br />
| 20 mm HE || 35 || 33 || 26 || 21 || 18 || 15<br />
|-<br />
| 20 mm AP || 35 || 33 || 26 || 21 || 18 || 15<br />
|-<br />
|}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="8" | Penetration statistics (shell)<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! rowspan="2" | Type of<br>warhead<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| HEF-T || {{Annotation|HEF-T|High-explosive fragmentation tracer}} || 2 || 2 || 2 || 2 || 2 || 2<br />
|-<br />
| AP-T || {{Annotation|AP-T|Armour-piercing tracer}} || 35 || 33 || 26 || 21 || 18 || 15<br />
|-<br />
| HEF-I || {{Annotation|HEF-I|High-explosive fragmentation incendiary}} || 2 || 2 || 2 || 2 || 2 || 2<br />
|-<br />
|}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="10" | Shell details<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! rowspan="2" | Type of<br>warhead<br />
! rowspan="2" | Velocity<br>(m/s)<br />
! rowspan="2" | Projectile<br>Mass (kg)<br />
! rowspan="2" | Fuse delay<br>(m)<br />
! rowspan="2" | Fuse sensitivity<br>(mm)<br />
! rowspan="2" | Explosive Mass<br>(TNT equivalent) (g)<br />
! colspan="3" | Ricochet<br />
|-<br />
! 0% !! 50% !! 100%<br />
|-<br />
| HEF-T || {{Annotation|HEF-T|High-explosive fragmentation tracer}} || 844 || 0.12 || N/A || 0.1 || 6.57 || 79° || 80° || 81°<br />
|-<br />
| AP-T || {{Annotation|AP-T|Armour-piercing tracer}} || 844 || 0.12 || N/A || N/A || N/A || 47° || 60° || 65°<br />
|-<br />
| HEF-I || {{Annotation|HEF-I|High-explosive fragmentation incendiary}} || 838 || 0.12 || N/A || 0.1 || 11.17 || 79° || 80° || 81°<br />
|-<br />
|}<br />
<br />
The best ammunition for general use is the HE belt, due to it having the highest ratio of HE rounds to AP rounds, making it the most effective against both aircraft and the vast majority of surface targets. Because of this, the HE belt should be the main ammunition once it is unlocked. Additionally, the AP belt, with its higher amount of AP rounds, is better for dealing with armoured targets, so take a decent amount of these as well for specialized usage.<br />
<br />
=== Secondary armament ===<br />
{{Specs-Fleet-Secondary}}<br />
<!-- ''Some ships are fitted with weapons of various calibres. Secondary armaments are defined as weapons chosen with the control <code>Select secondary weapon</code>. Evaluate the secondary armaments and give advice on how to use them. Describe the ammunition available for the secondary armament. Provide recommendations on how to use them and which ammunition to choose. Remember that any anti-air armament, even heavy calibre weapons, belong in the next section. If there is no secondary armament, remove this section.'' --><br />
{{main|Vickers Mk.V (12.7 mm)}}<br />
<br />
The secondary armament consists of two 12.7 mm Vickers Mk.V machineguns in a twin mount aft. There are 5,200 rounds of ammunition available for it, 2,600 rounds per gun. Stock, the mount can traverse horizontally and vertically at a rate of 64°/s; with the "Auxiliary Armament Targeting" modification installed, this is increased to 75°/s. Each gun has a belt capacity of 200 rounds and a cyclic rate of fire of about 600 rounds/min, though the gun on the gunner's right side fires slightly faster, around 685 rounds/min. With a stock crew, the guns can be reloaded in 13 seconds; with an aced crew, they can be reloaded in 10 seconds.<br />
<br />
{| class="wikitable" style="text-align:center" width="25%"<br />
! colspan="2" | Secondary armament guidance<br />
|-<br />
! Horizontal !! Vertical<br />
|-<br />
| ±180° || -10°/+70°<br />
|-<br />
|}<br />
<br />
There are three ammunition types available:<br />
<br />
* Universal: {{Annotation|T|Tracer}}{{-}}{{Annotation|AP|Armour-piercing}}{{-}}{{Annotation|I|Incendiary}}<br />
<br />
* 12.7 mm I: {{Annotation|T|Tracer}}{{-}}{{Annotation|I|Incendiary}}{{-}}{{Annotation|I|Incendiary}}{{-}}{{Annotation|I|Incendiary}}{{-}}{{Annotation|I|Incendiary}}<br />
<br />
* 12.7 mm API: {{Annotation|T|Tracer}}{{-}}{{Annotation|AP|Armour-piercing}}{{-}}{{Annotation|I|Incendiary}}{{-}}{{Annotation|AP|Armour-piercing}}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="7" | Penetration statistics (belt)<br />
|-<br />
! rowspan="2" data-sort-type="text" | Belt<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| Universal || 24 || 24 || 21 || 18 || 16 || 15<br />
|-<br />
| 12.7 mm I || 20 || 19 || 16 || 14 || 12 || 11<br />
|-<br />
| 12.7 mm API || 24 || 24 || 21 || 18 || 16 || 15<br />
|-<br />
|}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="8" | Penetration statistics (shell)<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! rowspan="2" | Type of<br>warhead<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| T || {{Annotation|T|Tracer}} || 20 || 19 || 16 || 14 || 12 || 11<br />
|-<br />
| AP || {{Annotation|AP|Armour-piercing}} || 24 || 24 || 21 || 18 || 16 || 15<br />
|-<br />
| I || {{Annotation|I|Incendiary}} || 3 || 2 || 2 || 2 || 2 || 2<br />
|-<br />
|}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="10" | Shell details<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! rowspan="2" | Type of<br>warhead<br />
! rowspan="2" | Velocity<br>(m/s)<br />
! rowspan="2" | Projectile<br>Mass (kg)<br />
! rowspan="2" | Fuse delay<br>(m)<br />
! rowspan="2" | Fuse sensitivity<br>(mm)<br />
! rowspan="2" | Explosive Mass<br>(TNT equivalent) (g)<br />
! colspan="3" | Ricochet<br />
|-<br />
! 0% !! 50% !! 100%<br />
|-<br />
| T || {{Annotation|T|Tracer}} || 753 || 0.04 || N/A || N/A || N/A || 47° || 56° || 65°<br />
|-<br />
| AP || {{Annotation|AP|Armour-piercing}} || 753 || 0.05 || N/A || N/A || N/A || 47° || 56° || 65°<br />
|-<br />
| I || {{Annotation|I|Incendiary}} || 753 || 0.04 || N/A || 0.1 || 1.8 || 47° || 56° || 65°<br />
|-<br />
|}<br />
<br />
Of the belts, the I belt has a noticeably higher damage output than both the Universal and API belts, both of which are about the same in terms of damage. This is because it has the highest concentration of incendiary rounds, which are the only ones with any high-explosive filler. However, because it lacks any armour-piercing rounds, the I belt has slightly less armour penetration than the other two belts. In general, though, any armour that can stop the incendiary round will also be able to stop the armour-piercing round. For the most effectiveness, take only the I belt once unlocked, and switch the primary 20 mm/70 Oerlikon Mk.II cannon to deal with armoured targets.<br />
<br />
=== Additional armament ===<br />
{{Specs-Fleet-Additional}}<br />
<!-- ''Describe the available additional armaments of the ship: depth charges, mines, torpedoes. Talk about their positions, available ammunition and launch features such as dead zones of torpedoes. If there is no additional armament, remove this section.'' --><br />
{{main|Mk.VIII (533 mm)|Mk.VII depth charge}}<br />
<br />
MTB Vosper(2) has four possible loadouts:<br />
<br />
# 2x Mk.VIII torpedo<br />
# 4x Mk.VII depth charge<br />
# 2x Mk.VIII torpedo, 4x Mk.VII depth charge<br />
# Without load<br />
<br />
'''Torpedoes'''<br />
<br />
MTB Vosper(2) can carry two 533 mm Mk.VIII torpedoes. The torpedo tubes are located on either side of the bridge, pointing forwards with the nose angled outwards.<br />
<br />
{| class="wikitable" style="text-align:center" width="100%"<br />
! colspan="9" | Torpedo characteristics<br />
|-<br />
! Torpedo Mode !! Mass (kg) !! Maximum speed in water (km/h) !! Travel distance (km) !! Depth stroke (m) !! Arming distance (m) !! Explosive type !! Explosive mass (kg) !! TNT equivalent (kg)<br />
|-<br />
| {{Annotation|No|'Torpedo Mode' modification uninstalled}} || 1566 || 84 || 4.57 || 1 || 50 || TNT || 327 || 327<br />
|-<br />
| {{Annotation|Yes|'Torpedo Mode' modification installed}} || 1566 || 76 || 6.40 || 1 || 50 || TNT || 327 || 327<br />
|}<br />
<br />
The Torpedo Mode modification is available as a rank IV modification. Installing it will give the following changes:<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="2" | Torpedo mode specification changes<br />
|-<br />
! Max Distance (m)<br />
! Max Speed (m/s)<br />
|-<br />
| +1830 || -2<br />
|-<br />
|}<br />
<br />
It's best to always keep Torpedo Mode uninstalled. The maximum speed of a torpedo is much more valuable in coastal battles than its maximum range. Coastal fleet maps are also small enough that the decreased range with Torpedo Mode installed isn't much of an issue.<br />
<br />
In RB, always set the depth stroke to the minimum 1 m setting, since most vessels that MTB Vosper(2) can face will not have a deep enough draught to fuse the torpedo at a depth stroke setting of 4 m. In AB, depth stroke is automatically set to the most optimal setting.<br />
<br />
When using torpedoes, be aware that unless they are already launched, the torpedoes have a very high chance to detonate when shot at, instantly destroying the boat. To avoid this, fire the torpedoes immediately after spawning in—as well as after any subsequent reloads in AB—or simply don't take them at all. Torpedoes are a situational weapon, so it's largely down to personal preference whether or not to take them. <br />
<br />
'''Depth Charges'''<br />
<br />
[[File:{{PAGENAME}}_DC_Order.png|thumb|Mk.VII depth charges numbered according to their drop order.]]<br />
<br />
The Mk.VII depth charges are carried around the bridge area, three on each side. They are dropped one at a time in the following order:<br />
<br />
# Port, foremost<br />
# Starboard, foremost<br />
# Port, aftmost<br />
# Starboard, aftmost<br />
<br />
Before spawning, the detonation time delay can be set anywhere between 3 seconds and 10 seconds.<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="7" | Depth charge characteristics<br />
|-<br />
! Mass (kg)<br />
! Explosive type<br />
! Explosive mass (kg)<br />
! TNT equivalent (kg)<br />
! HE armour penetration (mm)<br />
! Armoured vehicle destruction radius (m)<br />
! Fragment dispersion radius (m)<br />
|-<br />
| 196 || TNT || 130 || 130 || 101 || 8 || 122 <br />
|}<br />
<br />
There is almost no practical reason to use depth charges on any naval vessel in the game. Although they usually result in a one-hit kill if used properly, they are extremely situational, requiring the player to close to point-blank ranges to even use them. In almost every case, anytime a depth charge could be used, the guns or torpedoes can be used instead to greater effect. In fact, depth charges tend to actually be a liability in battle, since they essentially act as exposed ammo racks before they're dropped. Like torpedoes, they have a relatively high chance to detonate when shot at, instantly destroying the boat.<br />
<br />
Despite this, some success can be had in dropping them either next to or in front of a large, slow target. If dropping them next to the target, remember the depth charge drop order, since it's most likely that only the depth charges dropped on the side closest to the enemy will deal any damage. If dropping in front of the target, rush in from the sides as quickly as possible and drop them all at once directly in front of the target. For both cases, set the depth charge time delay to the minimum 3 seconds, since any higher time delay will only allow the depth charge to sink further away from the target, giving them more time to move out of the way. Again, using depth charges is extremely situational, and they will only be a liability the vast majority of the time, so take them at your own discretion.<br />
<br />
== Usage in battles ==<br />
<!-- ''Describe the technique of using this ship, the characteristics of her use in a team and tips on strategy. Abstain from writing an entire guide – don't try to provide a single point of view, but give the reader food for thought. Talk about the most dangerous opponents for this vehicle and provide recommendations on fighting them. If necessary, note the specifics of playing with this vehicle in various modes (AB, RB, SB).'' --><br />
<br />
Between the primary and secondary armaments, the secondary twin 12.7 Vickers Mk.V machine guns are actually much more effective than the primary single 20 mm/70 Oerlikon Mk.II. Using 12.7 mm I belt, the two machine guns together have a much greater damage output than the cannon, and with their larger belt capacity, they are also able to sustain fire for much longer periods of time before needing to reload. However, this does come at the cost of a longer reload and the fact that they are mounted aft, preventing them from firing in a ~46° arc forwards. Conveniently, the disadvantages of the Vickers Mk.V machine guns are the advantages of the Oerlikon Mk.II cannon, and vice versa: the Oerlikon Mk.II is mounted on the bow and has a quicker reload, but it is weaker in terms of damage. The primary and secondary armament nicely complement each other, and to fully make use of MTB Vosper(2), both must be used together.<br />
<br />
Since the Vickers Mk.V machine guns have the best damage output, switch to manual control of the secondaries and use these as the primary weapon. During their reloads, or in case they get knocked out, switch back to the Oerlikon Mk.II to continue the fight. The main disadvantage of heavy machine guns like the Vickers Mk.V is that they generally have a very long reload. By switching back to the Oerlikon Mk.II during reloads, MTB Vosper(2) can mostly circumvent this problem, allowing it to continue sustaining fire through about 70-80% of the reload of the machine guns, depending on crew skills. With this to fall back on, MTB Vosper(2) can afford to be more aggressive than most other vessels at this tier. However, to fully make use of this, the Oerlikon Mk.II should have a full magazine at all times, which can only be guaranteed by disabling the AI gunners. While this does greatly increase surface capabilities, it leaves MTB Vosper(2) open to aerial attacks, so always look out for enemy aircraft, and reenable the AI gunners to target aircraft if necessary. When targeting aircraft, the Vickers Mk.V machine guns tend to be more effective than the Oerlikon Mk.II due to their volume of fire, so in this case, switch back to the cannon to give control of the machine guns to the AI gunners.<br />
<br />
An alternative to this is to be proactive with the reloads like with other vessels. After engagements, if there isn't much ammunition left in the Vickers Mk.V magazines—less than about 100 rounds between both guns—retreat to cover, and then fire off any remaining ammunition to reload in safety. When playing like this, the Oerlikon Mk.II is more like a last resort weapon to switch to in a pinch. Since you're not constantly relying on it, it doesn't need to be full at all times, which frees it up for use by the AI gunners in combat. While this is certainly the safest approach to playing MTB Vosper(2), it doesn't take advantage of its strengths as much as the first playstyle does. That said, both are effective in their own right, so it's down to personal preference which way to play. Whichever playstyle you prefer, remember to be flexible and always be prepared to switch to the other weapon.<br />
<br />
=== Pros and cons ===<br />
<!-- ''Summarise and briefly evaluate the vehicle in terms of its characteristics and combat effectiveness. Mark its pros and cons in the bulleted list. Try not to use more than 6 points for each of the characteristics. Avoid using categorical definitions such as "bad", "good" and the like - use substitutions with softer forms such as "inadequate" and "effective".'' --><br />
<br />
'''Pros:'''<br />
<br />
* Strong secondary armament: great damage output<br />
* Good manoeuvrability<br />
* Good torpedoes: above-average maximum speed and explosive charge<br />
<br />
'''Cons:'''<br />
<br />
* Long secondary armament reload<br />
<br />
== History ==<br />
<!-- ''Describe the history of the creation and combat usage of the ship in more detail than in the introduction. If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the ship and adding a block "/History" (example: <nowiki>https://wiki.warthunder.com/(Ship-name)/History</nowiki>) and add a link to it here using the <code>main</code> template. Be sure to reference text and sources by using <code><nowiki><ref></ref></nowiki></code>, as well as adding them at the end of the article with <code><nowiki><references /></nowiki></code>. This section may also include the ship's dev blog entry (if applicable) and the in-game encyclopedia description (under <code><nowiki>=== In-game description ===</nowiki></code>, also if applicable).'' --><br />
<br />
During the 1930s, the Admiralty began to reestablish the coastal boat flotillas it once commanded during the First World War. British boatbuilding company Vosper & Company competed for the contract but lost both times in 1935 and 1936, the lucrative contract to build the first coastal boats since WWI going instead to their rival, British Power Boat Company. In response to this, Vospers developed plans for a faster and more seaworthy design than that of their rivals'. In the following months, Vospers proposed their new design to the Admiralty multiple times, but ultimately, they could not secure a contract to build a prototype. Around this time, though, the Admiralty officials had unofficially suggested that future contracts would only be awarded for vessels that could surpass 40 knots in speed and that were armed with two 21-inch torpedoes as well as an assortment of light anti-aircraft guns. Additionally, it was known from previous specifications that the Admiralty wanted a vessel capable of operating in open waters in at least Force 5 winds and that was fast enough to cross the English Channel during the night. With these unofficial specifications, Vospers preemptively began development on a new vessel as a private venture at the company's own expense.<br />
<br />
Immediately, it was decided that the private venture vessel had to be larger than the existing 60 ft British Power Boat MTB in order to meet the specifications. Additionally, engines more powerful than the Napier Sea Lion engines used in the BPB design were required. With none available domestically, Vospers looked to the Asso 1000 engine by Italian manufacturer Isotta-Fraschini. Though in limited supply, the Asso 1000 was specifically designed for marine craft and provided the necessary power: 1150 bhp at 1500 rpm maximum and 950 bhp at 1660 rpm continuous. In late 1936, Vospers completed their design. It called for three Asso 1000 engines and two in-house 75 bhp auxiliary engines, the latter of which could be coupled to the outer shafts to give a total maximum power of 3600 bhp. The hull-form was a hard chine planing design and was 69½ ft in length with a displacement of about 33 tons. The prototype was laid down before the end of the year and completed in May 1937.<br />
<br />
Upon completion, the prototype underwent internal trials where she achieved a top speed of 47.8 knots unloaded and 43.7 knots loaded. Satisfied with these results, Vospers presented the prototype to the Admiralty for official trials against the 60 ft British Power Boat MTB. The prototype fared favorably, and after much deliberation, the Admiralty decided to purchase the vessel from Vospers. She was commissioned in May 1938 as MTB 102 and sent to HMS Vernon for further evaluation. Up to this point, MTB 102 had not actually been fitted with torpedoes, so during her time at HMS Vernon, many torpedo configurations were tested. These included the tried-and-true yet outdated stern projection systems, as seen on the 60 ft British Power Boat MTB and earlier WWI designs, as well as a unique arrangement of a single launcher in the stem of the hull with a reload carried internally. These all had their own issues, and none were found to be satisfactory. Ultimately, it was decided that MTB 102 should have two torpedo tubes mounted on either side of the bridge, pointed forwards with the nose angled outwards, an uncommon configuration for the time. Around this time, the gun armament had also not yet been decided, so various configurations were also experimented with, including combinations of 0.303 in and 0.50 in machine guns and a 20 mm autocannon.<br />
<br />
Impressed with MTB 102, the Admiralty placed an order for four more vessels on 15th August 1938, Vospers' first-ever Admiralty contract. These vessels, and any ordered after, all shared the same overall design as MTB 102, although with several minor changes such as the hull being lengthened to 70 ft 3¼ in. After 1940, with the entrance of Italy into the war, Isotta-Fraschini engines could no longer be obtained, and subsequent boats had to be fitted with much weaker American Hall Scott engines—only 1800 bhp total—as a stopgap measure until they could be upgraded with more powerful Packard engines, although this wasn't until 1941 as supply was limited. Of the 32 planned 70 ft Vosper MTBs, 28 were completed and are as follows:<br />
<br />
* MTBs 20-23: Ordered 15th August 1938, all were completed by December 1939. MTBs 20, 21, and 23 were sold to the Romanian Navy. MTB 22 served with the 4th MTB Flotilla. She survived to the end of the war and was sold in 1945.<br />
<br />
* MTBs 29-30: Ordered on 8th September 1938—including a Thornycroft design, MTB 28—as replacements for the three boats sold to Romania, all were completed by July 1940. Both MTB 29 and 30 served with the 4th MTB Flotilla. MTB 29 was lost in a collision with a German E-boat on 6th October 1942, and MTB 30 struck a mine and was lost on 18th December 1942.<br />
<br />
* MTBs 31-40: Ordered on 27th September 1939, six were completed by May 1941. MTBs 33, 37, 39, and 40 were bombed by German aircraft while under construction in 1940-41. The completed boats survived to the end of the war and were sold in 1945-46.<br />
<br />
* MTBs 57-66: Ordered on 26th February 1940, all were completed by April 1942. MTB 61 was stranded during an attack on 9th May 1943, and MTBs 63 and 64 were lost after collisions with friendly MTBs on 2nd April 1943. The remaining boats were sold in 1944.<br />
<br />
* MTBs 69-70: Ordered in April 1940, both were completed by June 1940 and received only two engines. Both were stationed at HMS Beehive, Felixstowe. They both survived to the end of the war and were sold in 1945-46.<br />
<br />
* MTBs 218-221: Ordered on 7th December 1940, all were completed by September 1941. MTB 218 struck a mine and was lost on 18th August 1942, and MTB 220 was sunk by German E-boats on 13th May 1942. MTBs 219 and 221 survived to the end of the war. MTB 221 was sold in 1945, and MTB 219 was transferred to the Sea Cadet Corps at Staines in 1945 and was converted to a houseboat in 1948.<br />
<br />
The 70 ft Vosper MTB design continued to receive many improvements and modifications order-to-order and would lead to the development of the 72 ft Vosper MTB and 73 ft Vosper MTB.<br />
<br />
== Media ==<br />
<!-- ''Excellent additions to the article would be video guides, screenshots from the game, and photos.'' --><br />
<br />
;'''Skins'''<br />
<br />
* [https://live.warthunder.com/feed/camouflages/?vehicleCountry=britain&vehicleType=ship&vehicleClass=torpedo_boat&vehicle=uk_mtb_vosper_2series Skins and camouflages for the {{PAGENAME}} from live.warthunder.com.]<br />
<br />
== See also ==<br />
<!-- ''Links to articles on the War Thunder Wiki that you think will be useful for the reader, for example:''<br />
* ''reference to the series of the ship;''<br />
* ''links to approximate analogues of other nations and research trees.'' --><br />
<br />
* [[MTB Vosper (Family)]]<br />
* {{Specs-Link|uk_mtb_vosper_1series}}<br />
* {{Specs-Link|it_a1_vosper}}<br />
<br />
== External links ==<br />
<!-- ''Paste links to sources and external resources, such as:''<br />
* ''topic on the official game forum;''<br />
* ''encyclopedia page on the ship;''<br />
* ''other literature.'' --><br />
<br />
* [http://cfv.org.uk/research/boat/database <nowiki>[Coastal Forces Veterans]</nowiki> Boat Database]<br />
* [http://www.ww2ships.com/britain/gb-sc-002-b.shtml <nowiki>[ww2ships.com]</nowiki> 70' Vosper Motor Torpedo Boat]<br />
* [https://www.unithistories.com/units_british/RN_MTBs.html#MTB_Boats <nowiki>[Unit Histories]</nowiki> Royal Navy Coastal Forces 1940-1945]<br />
* [http://www.naval-history.net/WW2BritishLosses3Coastal.htm <nowiki>[naval-history.net]</nowiki> British vessels lost at sea in World War 2 - MGB, MTB, SGB, ML, etc] - originally published in British Vessels Lost at Sea, 1935-45, His Majesty's Stationary Office, 1947<br />
<br />
===Bibliography===<br />
<br />
* Lambert, J., & Ross, A. (1993). ''Allied Coastal Forces of World War II Volume II: Vosper MTBs & U.S. Elcos'' (pp. 21-32). London, England: Conway Maritime Press. ISBN 0-85177-602-7.<br />
<br />
{{Britain boats}}</div>U27474208https://old-wiki.warthunder.com/index.php?title=MTB_Vosper&diff=107701MTB Vosper2021-07-27T12:16:36Z<p>U27474208: Updated to 2.7; added penetration by shell and shell details</p>
<hr />
<div>{{About<br />
| about = British motor torpedo boat '''{{PAGENAME}}'''<br />
| usage = other versions<br />
| link = MTB Vosper (Family)<br />
}}<br />
{{Specs-Card<br />
|code=uk_mtb_vosper_1series<br />
|images={{Specs-Card-Image|GarageImage_{{PAGENAME}}.jpg}}<br />
}}<br />
<br />
== Description ==<br />
<!-- ''In the first part of the description, cover the history of the ship's creation and military application. In the second part, tell the reader about using this ship in the game. Add a screenshot: if a beginner player has a hard time remembering vehicles by name, a picture will help them identify the ship in question.'' --><br />
The '''{{Specs|name}}''' is a rank {{Specs|rank}} British motor torpedo boat {{Battle-rating}}. It was introduced in [[Update 1.83 "Masters of the Sea"]] as part of the British fleet closed beta test. With the split of the naval tech trees in [[Update "New Power"]], {{PAGENAME}} was moved to the coastal fleet tech tree.<br />
<br />
== General info ==<br />
=== Survivability and armour ===<br />
{{Specs-Fleet-Armour}}<br />
<!-- ''Talk about the vehicle's armour. Note the most well-defended and most vulnerable zones, e.g. the ammo magazine. Evaluate the composition of components and assemblies responsible for movement and manoeuvrability. Evaluate the survivability of the primary and secondary armaments separately. Don't forget to mention the size of the crew, which plays an important role in fleet mechanics. Save tips on preserving survivability for the "Usage in battles" section. If necessary, use a graphical template to show the most well-protected or most vulnerable points in the armour.'' --><br />
<br />
[[File:{{PAGENAME}}_Internals.png|thumb|{{PAGENAME}} internals (starboard). Note the ammunition storage below the bridge.]]<br />
<br />
MTB Vosper has the following armour layout:<br />
<br />
* Hull: 24 mm, wood<br />
* Superstructure: 15 mm, wood<br />
<br />
Any gun in the game will easily be able to penetrate the hull and superstructure at any range.<br />
<br />
The hull is split into three compartments. Starting from the bow and working towards the stern, the first compartment starts at the bow and ends in front of the bridge; the second ends behind the aft gun mounts, just after the fuel tanks; and the third ends at the stern. <br />
<br />
MTB Vosper can be hull-broken by any round with a large enough diameter and explosive mass. In general, this is limited to HE rounds greater with a diameter greater than or equal to 4 inches (102 mm) with an explosive mass greater than 1.5 kg. At MTB Vosper's own battle rating, there is no gun capable of hull-breaking her.<br />
<br />
There is one ammunition storage that holds ammunition for all gun mounts. It is located directly below the bridge, just above the waterline. Destroying it will instantly destroy the boat.<br />
<br />
MTB Vosper has a crew complement of 10. With a stock crew, it is knocked out when 6 crew are lost; with an aced crew, this is increased to 7. Overall, the survivability is average.<br />
<br />
=== Mobility ===<br />
{{Specs-Fleet-Mobility}}<br />
<!-- ''Write about the ship's mobility. Evaluate its power and manoeuvrability, rudder rerouting speed, stopping speed at full tilt, with its maximum forward and reverse speed.'' --><br />
<br />
{{NavalMobility<br />
|SpeedForwardStockAB = 76<br />
|SpeedBackStockAB = 27<br />
|TurnTimeStockAB = 19.42<br />
|TurnSpeedStockAB = 44<br />
<br />
|TurnTimeSpadedAB = 12.61<br />
|TurnSpeedSpadedAB = 43<br />
<br />
|SpeedForwardStockRB = 64<br />
|SpeedBackStockRB = 22<br />
|TurnTimeStockRB = 21.92<br />
|TurnSpeedStockRB = 45<br />
<br />
|TurnTimeSpadedRB = 17.83<br />
|TurnSpeedSpadedRB = 44<br />
}}<br />
<br />
MTB Vosper has a displacement of 38 tons.<br />
<br />
When moving forwards at high speeds, the bow will drift slightly to starboard without any player input. When moving backwards, the bow drifts slightly to port.<br />
<br />
=== Modifications and economy ===<br />
{{Specs-Economy}}<br />
<br />
The recommended modification research order is:<br />
<br />
# Tool Set<br />
# Fire Protection System<br />
# 7.7 mm API belt<br />
# Smokescreen<br />
# Propeller Replacement<br />
# Artillery Support<br />
<br />
After that, prioritize the rest of the seakeeping modifications first, then research the remaining modifications in whatever order you prefer.<br />
<br />
== Armament ==<br />
{{Specs-Fleet-Armaments}}<br />
=== Primary armament ===<br />
{{Specs-Fleet-Primary}}<br />
<!-- ''Provide information about the characteristics of the primary armament. Evaluate their efficacy in battle based on their reload speed, ballistics and the capacity of their shells. Add a link to the main article about the weapon: <code><nowiki>{{main|Weapon name (calibre)}}</nowiki></code>. Broadly describe the ammunition available for the primary armament, and provide recommendations on how to use it and which ammunition to choose.'' --><br />
{{main|Lewis 1916 (7.72 mm)}}<br />
<br />
[[File:Vosper1 Centre CloseUpImage.png|thumb|{{PAGENAME}} gun turret placements. The two mounts behind the bridge are staggered to not obstruct each other when firing to the sides.]]<br />
<br />
The primary armament consists of eight 7.72 mm Lewis 1916 machineguns in four twin mounts. Two of these are mounted side-by-side in front of the bridge with the other two staggered behind the bridge. There are 1,940 rounds of ammunition available for each mount, 970 rounds per gun, for a total of 7,760 rounds. Stock, the mounts can traverse horizontally and vertically at a rate of 64°/s; with the "Primary Armament Targeting" modification installed, this is increased to 75°/s. Each gun has a magazine capacity of 97 rounds and a cyclic rate of fire of around 550 rounds/min. With a stock crew, the guns can be reloaded in 10.4 seconds; with an aced crew, they can be reloaded in 8 seconds.<br />
<br />
{{Notice|Turrets are named sequentially, clockwise, starting at the bow}}<br />
<br />
{| class="wikitable" style="text-align:center" width="100%"<br />
! colspan="8" | Primary armament guidance<br />
|-<br />
! colspan="2" rowspan="1" | No.1 Turret (fore-starboard)<br />
! colspan="2" rowspan="1" | No.2 Turret (aft-starboard)<br />
! colspan="2" rowspan="1" | No.3 Turret (aft-port)<br />
! colspan="2" rowspan="1" | No.4 Turret (fore-port)<br />
|-<br />
! Horizontal !! Vertical !! Horizontal !! Vertical !! Horizontal !! Vertical !! Horizontal !! Vertical<br />
|-<br />
| ±180° || -7°/+70° || ±180° || -10°/+70° || ±180° || -10°/+70° || ±180° || -7°/+70°<br />
|-<br />
|}<br />
<br />
There are three ammunition types available:<br />
<br />
* Universal: {{Annotation|AP|Armour-piercing}}{{-}}{{Annotation|T|Tracer}}{{-}}{{Annotation|AP|Armour-piercing}}{{-}}{{Annotation|T|Tracer}}<br />
<br />
* 7.7 mm AP belt: {{Annotation|AP|Armour-piercing}}{{-}}{{Annotation|AP|Armour-piercing}}{{-}}{{Annotation|AP|Armour-piercing}}{{-}}{{Annotation|T|Tracer}}<br />
<br />
* 7.7 mm API belt: {{Annotation|IT|Incendiary tracer}}{{-}}{{Annotation|IT|Incendiary tracer}}{{-}}{{Annotation|IT|Incendiary tracer}}{{-}}{{Annotation|AP|Armour-piercing}}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="7" | Penetration statistics (belt)<br />
|-<br />
! rowspan="2" data-sort-type="text" | Belt<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| Universal || 10 || 9 || 8 || 7 || 6 || 5<br />
|-<br />
| 7.7 mm AP belt || 10 || 9 || 8 || 7 || 6 || 5<br />
|-<br />
| 7.7 mm API belt || 10 || 9 || 8 || 7 || 6 || 5<br />
|-<br />
|}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="8" | Penetration statistics (shell)<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! rowspan="2" | Type of<br>warhead<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| AP || {{Annotation|AP|Armour-piercing}} || 10 || 9 || 8 || 7 || 6 || 5<br />
|-<br />
| T || {{Annotation|T|Tracer}} || 9 || 8 || 7 || 6 || 5 || 4<br />
|-<br />
| IT || {{Annotation|IT|Incendiary tracer}} || 10 || 9 || 7 || 6 || 5 || 5<br />
|-<br />
|}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="10" | Shell details<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! rowspan="2" | Type of<br>warhead<br />
! rowspan="2" | Velocity<br>(m/s)<br />
! rowspan="2" | Projectile<br>Mass (kg)<br />
! rowspan="2" | Fuse delay<br>(m)<br />
! rowspan="2" | Fuse sensitivity<br>(mm)<br />
! rowspan="2" | Explosive Mass<br>(TNT equivalent) (g)<br />
! colspan="3" | Ricochet<br />
|-<br />
! 0% !! 50% !! 100%<br />
|-<br />
| AP || {{Annotation|AP|Armour-piercing}} || 853 || 0.01 || N/A || N/A || N/A || 47° || 56° || 65°<br />
|-<br />
| T || {{Annotation|T|Tracer}} || 835 || 0.01 || N/A || N/A || N/A || 47° || 56° || 65°<br />
|-<br />
| IT || {{Annotation|IT|Incendiary tracer}} || 920 || 0.01 || N/A || N/A || N/A || 47° || 56° || 65°<br />
|-<br />
|}<br />
<br />
While the armour-piercing round and the the incendiary tracer round deal about the same amount of the damage, the standard tracer round deals incredibly little damage to both surface targets and aircraft. Because of this, the AP belt is a strict upgrade from the default belt. Compared to the AP rounds, the IT rounds also have a much higher muzzle velocity. Altogether, this makes the API belt the best overall, due both to its lack of standard tracer rounds and better balistic properties.<br />
<br />
=== Additional armament ===<br />
{{Specs-Fleet-Additional}}<br />
<!-- ''Describe the available additional armaments of the ship: depth charges, mines, torpedoes. Talk about their positions, available ammunition and launch features such as dead zones of torpedoes. If there is no additional armament, remove this section.'' --><br />
{{main|Mk.VIII (533 mm)}}<br />
<br />
MTB Vosper has two possible loadouts:<br />
<br />
# 2x Mk.VIII torpedo<br />
# Without load<br />
<br />
'''Torpedoes'''<br />
<br />
MTB Vosper can carry two 533 mm Mk.VIII torpedoes. The torpedo tubes are located on either side of the bridge, pointing forwards with the nose angled outwards.<br />
<br />
{| class="wikitable" style="text-align:center" width="100%"<br />
! colspan="9" | Torpedo characteristics<br />
|-<br />
! Torpedo Mode !! Mass (kg) !! Maximum speed in water (km/h) !! Travel distance (km) !! Depth stroke (m) !! Arming distance (m) !! Explosive type !! Explosive mass (kg) !! TNT equivalent (kg)<br />
|-<br />
| {{Annotation|No|'Torpedo Mode' modification uninstalled}} || 1,566 || 84 || 4.57 || 1 || 50 || TNT || 327 || 327<br />
|-<br />
| {{Annotation|Yes|'Torpedo Mode' modification installed}} || 1,566 || 76 || 6.40 || 1 || 50 || TNT || 327 || 327<br />
|}<br />
<br />
The Torpedo Mode modification is available as a rank IV modification. Installing it will give the following changes:<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="2" | Torpedo mode specification changes<br />
|-<br />
! Max Distance (m)<br />
! Max Speed (m/s)<br />
|-<br />
| +1,830 || -2<br />
|-<br />
|}<br />
<br />
It's best to always keep Torpedo Mode uninstalled. The maximum speed of a torpedo is much more valuable in coastal battles than its maximum range. Coastal fleet maps are also small enough that the decreased range with Torpedo Mode installed isn't much of an issue.<br />
<br />
In RB, always set the depth stroke to the minimum 1 m setting, since most vessels that MTB Vosper can face will not have a deep enough draught to fuse the torpedo at a depth stroke setting of 4 m. In AB, depth stroke is automatically set to the most optimal setting.<br />
<br />
When using torpedoes, be aware that unless they are already launched, the torpedoes have a very high chance to detonate when shot at, instantly destroying the boat. To avoid this, fire the torpedoes immediately after spawning in—as well as after any subsequent reloads in AB—or simply don't take them at all. Torpedoes are a situational weapon, so it's largely down to personal preference whether or not to take them. <br />
<br />
== Usage in battles ==<br />
<!-- ''Describe the technique of using this ship, the characteristics of her use in a team and tips on strategy. Abstain from writing an entire guide – don't try to provide a single point of view, but give the reader food for thought. Talk about the most dangerous opponents for this vehicle and provide recommendations on fighting them. If necessary, note the specifics of playing with this vehicle in various modes (AB, RB, SB).'' --><br />
<br />
In terms of armament, MTB Vosper is very similar to the reserve vessel of the tech tree, {{Specs-Link|uk_mtb_1series}}, the difference being in the placement of the guns. While MTB-1(1) has the eight guns split into two quadruple mounts, MTB Vosper has them in four twin mounts. With this arrangement, MTB Vosper can typically only bring four or six of her eight guns on target at once, since the mounts block each other at most angles. Although there is a small ~7.5° arc about 60° to port (between the 9 and 10 o'clock positions) where all eight guns can be used at once, it's difficult to keep targets in such a small range, so this shouldn't be relied on. Because of this, MTB Vosper is limited to only a fraction of the firepower of MTB-1(1), whose armament wasn't very good to begin with. That said, this gun arrangement does come with a few benefits, the most significant of which being the much quicker reloads, nearly half of that of MTB-1(1). Additionally, having twin mounts instead of quad mounts also makes each individual mount smaller, reducing the likelihood of losing a turret to random fire and making it less detrimental should it happen.<br />
<br />
Even with these differences, though, MTB Vosper has nearly the exact same playstyle as MTB-1(1) due to the limitations of the guns. Because of their bad damage output, always keep enemies in directions where six of the guns can fire. Similarly, because of their poor ballistic qualities, stick to close-range engagements and avoid open areas of the map wherever possible. Make use of MTB Vosper's higher top speed to rush into ambush positions behind cover that MTB-1(1) would be too slow to reach. From there, support your team by targeting distracted enemies. For larger opponents such as sub-chasers, try not to draw attention to yourself with gunfire. Instead, either use the torpedoes, or simply mark them on the map for your team, call artillery, and then retreat behind cover. <br />
<br />
Despite the reloads being shorter than that of MTB-1(1), they are still quite long overall, so it's still a good idea to be proactive with the reloads. Always be aware of how much ammunition is left in the guns and fire off any remaining ammunition if there isn't much left after engagements, retreating to do so if necessary. Like MTB-1(1), a good time to do this with MTB Vosper is when the magazines are about half empty, though it may not always be obvious when that is just from the ammunition counter, since not all of the guns can fire at once. The guns can only sustain fire for about 10 seconds before needing to reload, so make use of that to determine the amount of remaining ammunition by mentally keeping track of how long you've fired the guns. Lastly, like MTB-1(1), it should be noted that MTB Vosper can only carry enough ammunition for ten reloads at most, though again just like MTB-1(1), MTB Vosper also doesn't tend to survive long enough for this to become an issue, so keep that in mind but don't worry too much about it.<br />
<br />
=== Pros and cons ===<br />
<!-- ''Summarise and briefly evaluate the vehicle in terms of its characteristics and combat effectiveness. Mark its pros and cons in the bulleted list. Try not to use more than 6 points for each of the characteristics. Avoid using categorical definitions such as "bad", "good" and the like - use substitutions with softer forms such as "inadequate" and "effective".'' --><br />
<br />
'''Pros:'''<br />
<br />
* Good manoeuvrability<br />
* Good torpedoes: above-average maximum speed and explosive mass<br />
<br />
'''Cons:'''<br />
<br />
* Primary armament consists only of low-calibre machineguns: very low overall damage output<br />
* Not all gun mounts can be brought on target at once, one or more of the turrets will be blocked at most angles<br />
<br />
== History ==<br />
<!-- ''Describe the history of the creation and combat usage of the ship in more detail than in the introduction. If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the ship and adding a block "/History" (example: <nowiki>https://wiki.warthunder.com/(Ship-name)/History</nowiki>) and add a link to it here using the <code>main</code> template. Be sure to reference text and sources by using <code><nowiki><ref></ref></nowiki></code>, as well as adding them at the end of the article with <code><nowiki><references /></nowiki></code>. This section may also include the ship's dev blog entry (if applicable) and the in-game encyclopedia description (under <code><nowiki>=== In-game description ===</nowiki></code>, also if applicable).'' --><br />
<br />
During the 1930s, the Admiralty began to reestablish the coastal boat flotillas it once commanded during the First World War. British boatbuilding company Vosper & Company competed for the contract but lost both times in 1935 and 1936, the lucrative contract to build the first coastal boats since WWI going instead to their rival, British Power Boat Company. In response to this, Vospers developed plans for a faster and more seaworthy design than that of their rivals'. In the following months, Vospers proposed their new design to the Admiralty multiple times, but ultimately, they could not secure a contract to build a prototype. Around this time, though, the Admiralty officials had unofficially suggested that future contracts would only be awarded for vessels that could surpass 40 knots in speed and that were armed with two 21-inch torpedoes as well as an assortment of light anti-aircraft guns. Additionally, it was known from previous specifications that the Admiralty wanted a vessel capable of operating in open waters in at least Force 5 winds and that was fast enough to cross the English Channel during the night. With these unofficial specifications, Vospers preemptively began development on a new vessel as a private venture at the company's own expense.<br />
<br />
Immediately, it was decided that the private venture vessel had to be larger than the existing 60 ft British Power Boat MTB in order to meet the specifications. Additionally, engines more powerful than the Napier Sea Lion engines used in the BPB design were required. With none available domestically, Vospers looked to the Asso 1000 engine by Italian manufacturer Isotta-Fraschini. Though in limited supply, the Asso 1000 was specifically designed for marine craft and provided the necessary power: 1150 bhp at 1500 rpm maximum and 950 bhp at 1660 rpm continuous. In late 1936, Vospers completed their design. It called for three Asso 1000 engines and two in-house 75 bhp auxiliary engines, the latter of which could be coupled to the outer shafts to give a total maximum power of 3600 bhp. The hull-form was a hard chine planing design and was 69½ ft in length with a displacement of about 33 tons. The prototype was laid down before the end of the year and completed in May 1937.<br />
<br />
Upon completion, the prototype underwent internal trials where she achieved a top speed of 47.8 knots unloaded and 43.7 knots loaded. Satisfied with these results, Vospers presented the prototype to the Admiralty for official trials against the 60 ft British Power Boat MTB. The prototype fared favorably, and after much deliberation, the Admiralty decided to purchase the vessel from Vospers. She was commissioned in May 1938 as MTB 102 and sent to HMS Vernon for further evaluation. Up to this point, MTB 102 had not actually been fitted with torpedoes, so during her time at HMS Vernon, many torpedo configurations were tested. These included the tried-and-true yet outdated stern projection systems, as seen on the 60 ft British Power Boat MTB and earlier WWI designs, as well as a unique arrangement of a single launcher in the stem of the hull with a reload carried internally. These all had their own issues, and none were found to be satisfactory. Ultimately, it was decided that MTB 102 should have two torpedo tubes mounted on either side of the bridge, pointed forwards with the nose angled outwards, an uncommon configuration for the time. Around this time, the gun armament had also not yet been decided, so various configurations were also experimented with, including combinations of 0.303 in and 0.50 in machine guns and a 20 mm autocannon.<br />
<br />
Impressed with MTB 102, the Admiralty placed an order for four more vessels on 15th August 1938, Vospers' first-ever Admiralty contract. These vessels, and any ordered after, all shared the same overall design as MTB 102, although with several minor changes such as the hull being lengthened to 70 ft 3¼ in. After 1940, with the entrance of Italy into the war, Isotta-Fraschini engines could no longer be obtained, and subsequent boats had to be fitted with much weaker American Hall Scott engines—only 1800 bhp total—as a stopgap measure until they could be upgraded with more powerful Packard engines, although this wasn't until 1941 as supply was limited. Of the 32 planned 70 ft Vosper MTBs, 28 were completed and are as follows:<br />
<br />
* MTBs 20-23: Ordered 15th August 1938, all were completed by December 1939. MTBs 20, 21, and 23 were sold to the Romanian Navy. MTB 22 served with the 4th MTB Flotilla. She survived to the end of the war and was sold in 1945.<br />
<br />
* MTBs 29-30: Ordered on 8th September 1938—including a Thornycroft design, MTB 28—as replacements for the three boats sold to Romania, all were completed by July 1940. Both MTB 29 and 30 served with the 4th MTB Flotilla. MTB 29 was lost in a collision with a German E-boat on 6th October 1942, and MTB 30 struck a mine and was lost on 18th December 1942.<br />
<br />
* MTBs 31-40: Ordered on 27th September 1939, six were completed by May 1941. MTBs 33, 37, 39, and 40 were bombed by German aircraft while under construction in 1940-41. The completed boats survived to the end of the war and were sold in 1945-46.<br />
<br />
* MTBs 57-66: Ordered on 26th February 1940, all were completed by April 1942. MTB 61 was stranded during an attack on 9th May 1943, and MTBs 63 and 64 were lost after collisions with friendly MTBs on 2nd April 1943. The remaining boats were sold in 1944.<br />
<br />
* MTBs 69-70: Ordered in April 1940, both were completed by June 1940 and received only two engines. Both were stationed at HMS Beehive, Felixstowe. They both survived to the end of the war and were sold in 1945-46.<br />
<br />
* MTBs 218-221: Ordered on 7th December 1940, all were completed by September 1941. MTB 218 struck a mine and was lost on 18th August 1942, and MTB 220 was sunk by German E-boats on 13th May 1942. MTBs 219 and 221 survived to the end of the war. MTB 221 was sold in 1945, and MTB 219 was transferred to the Sea Cadet Corps at Staines in 1945 and was converted to a houseboat in 1948.<br />
<br />
The 70 ft Vosper MTB design continued to receive many improvements and modifications order-to-order and would lead to the development of the 72 ft Vosper MTB and 73 ft Vosper MTB.<br />
<br />
== Media ==<br />
<!-- ''Excellent additions to the article would be video guides, screenshots from the game, and photos.'' --><br />
<br />
;'''Skins'''<br />
* [https://live.warthunder.com/feed/camouflages/?vehicleCountry=britain&vehicleType=ship&vehicleClass=torpedo_boat&vehicle=uk_mtb_vosper_1series Skins and camouflages for the {{PAGENAME}} from live.warthunder.com.]<br />
<br />
== See also ==<br />
<!-- ''Links to articles on the War Thunder Wiki that you think will be useful for the reader, for example:''<br />
* ''reference to the series of the ship;''<br />
* ''links to approximate analogues of other nations and research trees.'' --><br />
<br />
* [[MTB Vosper (Family)]]<br />
* {{Specs-Link|uk_mtb_vosper_2series}}<br />
* {{Specs-Link|it_a1_vosper}}<br />
* {{Specs-Link|uk_mtb_1series}}<br />
<br />
== External links ==<br />
<!-- ''Paste links to sources and external resources, such as:''<br />
* ''topic on the official game forum;''<br />
* ''other literature.'' --><br />
<br />
* [http://cfv.org.uk/research/boat/database <nowiki>[Coastal Forces Veterans]</nowiki> Boat Database]<br />
* [http://www.ww2ships.com/britain/gb-sc-002-b.shtml <nowiki>[ww2ships.com]</nowiki> 70' Vosper Motor Torpedo Boat]<br />
* [https://www.unithistories.com/units_british/RN_MTBs.html#MTB_Boats <nowiki>[Unit Histories]</nowiki> Royal Navy Coastal Forces 1940-1945]<br />
* [http://www.naval-history.net/WW2BritishLosses3Coastal.htm <nowiki>[naval-history.net]</nowiki> British vessels lost at sea in World War 2 - MGB, MTB, SGB, ML, etc] - originally published in British Vessels Lost at Sea, 1935-45, His Majesty's Stationary Office, 1947<br />
<br />
===Bibliography===<br />
<br />
* Lambert, J., & Ross, A. (1993). ''Allied Coastal Forces of World War II Volume II: Vosper MTBs & U.S. Elcos'' (pp. 21-32). London, England: Conway Maritime Press. ISBN 0-85177-602-7.<br />
<br />
{{Britain boats}}</div>U27474208https://old-wiki.warthunder.com/index.php?title=MTB-1(1)&diff=107684MTB-1(1)2021-07-27T10:38:13Z<p>U27474208: Typo</p>
<hr />
<div>{{About<br />
| about = British motor torpedo boat '''{{PAGENAME}}'''<br />
| usage = other versions<br />
| link = MTB-1 (Family)<br />
}}<br />
{{Specs-Card<br />
|code=uk_mtb_1series<br />
|images={{Specs-Card-Image|GarageImage_{{PAGENAME}}.jpg}}<br />
}}<br />
<br />
== Description ==<br />
<!-- ''In the first part of the description, cover the history of the ship's creation and military application. In the second part, tell the reader about using this ship in the game. Add a screenshot: if a beginner player has a hard time remembering vehicles by name, a picture will help them identify the ship in question.'' --><br />
The '''{{Specs|name}}''' is a rank {{Specs|rank}} British motor torpedo boat {{Battle-rating}}. It was introduced in [[Update 1.83 "Masters of the Sea"]] as part of the British fleet closed beta test. With the split of the naval tech trees in [[Update "New Power"]], {{PAGENAME}} was moved to the coastal fleet tech tree where it is now the reserve vehicle.<br />
<br />
Decently fast and manoeuvrable, MTB-1(1) is the reserve vehicle of the British coastal fleet tech tree. It carries a pair of torpedoes and sports a large number of guns, eight 7.72 mm Lewis 1916 machine guns in total. However, each machine gun individually has a poor damage output and a low effective range, so combined with her low survivability, extra caution is needed to fully utilize MTB-1(1).<br />
<br />
There is a premium version of this vehicle, {{Specs-Link|uk_mtb_2series}}, which differs in the gun mount placement and number of depth charges.<br />
<br />
== General info ==<br />
=== Survivability and armour ===<br />
{{Specs-Fleet-Armour}}<br />
<!-- ''Talk about the vehicle's armour. Note the most well-defended and most vulnerable zones, e.g. the ammo magazine. Evaluate the composition of components and assemblies responsible for movement and manoeuvrability. Evaluate the survivability of the primary and secondary armaments separately. Don't forget to mention the size of the crew, which plays an important role in fleet mechanics. Save tips on preserving survivability for the "Usage in battles" section. If necessary, use a graphical template to show the most well-protected or most vulnerable points in the armour.'' --><br />
<br />
[[File:{{PAGENAME}}_Internals.png|thumb|{{PAGENAME}} internals (starboard). Note the ammo storage between the bridge and the forward gun mount.]]<br />
<br />
MTB-1(1) has the following armour layout:<br />
<br />
* Hull: 24 mm, wood<br />
* Superstructure: 2 mm, steel<br />
<br />
Any gun in the game will easily be able to penetrate the hull and superstructure at any range.<br />
<br />
The hull is split into three sections. Starting from the bow and working towards the stern, the first section starts at the bow and ends after the ammunition storage; the second ends just behind the bridge; and the third ends at the stern. <br />
<br />
Any round with a large enough diameter and explosive mass can hull break MTB-1(1). In general, this is limited to HE rounds with a diameter greater than 4 inches (102 mm) with an explosive mass greater than 1.5 kg. At MTB-1(1)'s own battle rating, there is no gun capable of hull-breaking her.<br />
<br />
There is one ammunition storage that holds ammunition for both the fore and aft gun turrets. It is located directly behind the forward gun turret just above the waterline. Destroying it will instantly destroy the boat.<br />
<br />
MTB-1(1) has a crew complement of 11. With a stock crew, it is knocked out when 7 crew are lost; with an aced crew, this is increased to 8. <br />
<br />
While MTB-1(1)'s crew complement is about average when comparing vessels with the same battle rating, her overall survivability is rather poor when compared to everything in her battle rating range. The placement of the guns also forces MTB-1(1) to expose the rear hull sections to get all the guns on target, something not required with most other reserve vessels. <br />
<br />
=== Mobility ===<br />
{{Specs-Fleet-Mobility}}<br />
<!-- ''Write about the ship's mobility. Evaluate its power and manoeuvrability, rudder rerouting speed, stopping speed at full tilt, with its maximum forward and reverse speed.'' --><br />
<br />
{{NavalMobility<br />
|SpeedForwardStockAB = 63<br />
|SpeedBackStockAB = 32<br />
|TurnTimeStockAB = 18.64<br />
|TurnSpeedStockAB = 43<br />
<br />
|TurnTimeSpadedAB = 12.67<br />
|TurnSpeedSpadedAB = 40<br />
<br />
|SpeedForwardStockRB = 53<br />
|SpeedBackStockRB = 26<br />
|TurnTimeStockRB = 20.77<br />
|TurnSpeedStockRB = 40<br />
<br />
|TurnTimeSpadedRB = 17.44<br />
|TurnSpeedSpadedRB = 43<br />
}}<br />
<br />
While her top speed is on the slower side compared to other motor torpedo boats, MTB-1(1)'s manoeuvrability is actually rather good. With a tight turning circle and a decent enough top speed, the mobility is suitable enough for most situations, although the lower top speed really hurts her potential for flanking on certain maps.<br />
<br />
MTB-1(1) has a displacement of 22.4 tons. Because of her small size and relatively low displacement, MTB-1(1) can be an unstable firing platform in rough waters.<br />
<br />
=== Modifications and economy ===<br />
{{Specs-Economy}}<br />
<br />
As a reserve vehicle, the following modifications are unlocked for free: Rudder Replacement, Propeller Replacement, Engine Maintenance, Tool Set, Fire Protection System, New Pumps, and Primary Armament Targeting.<br />
<br />
The recommended modification research order is:<br />
# 7.7 mm API belt<br />
# Smokescreen<br />
# Artillery Support<br />
# Dry-Docking<br />
<br />
After that, research the rest of the modifications in whatever order you prefer.<br />
<br />
== Armament ==<br />
{{Specs-Fleet-Armaments}}<br />
=== Primary armament ===<br />
{{Specs-Fleet-Primary}}<br />
<!-- ''Provide information about the characteristics of the primary armament. Evaluate their efficacy in battle based on their reload speed, ballistics and the capacity of their shells. Add a link to the main article about the weapon: <code><nowiki>{{main|Weapon name (calibre)}}</nowiki></code>. Broadly describe the ammunition available for the primary armament, and provide recommendations on how to use it and which ammunition to choose.'' --><br />
{{main|Lewis 1916 (7.72 mm)}}<br />
<br />
The primary armament consists of eight 7.72 mm Lewis 1916 machine guns in two quadruple mounts, one on the bow and one on the stern. There are 3,880 rounds of ammunition available for each mount, 970 rounds per gun, for a total of 7,760 rounds. Stock, the mounts can traverse horizontally and vertically at a rate of 64°/s; with the "Primary Armament Targeting" modification installed, this is increased to 75°/s. Each gun has a magazine capacity of 97 rounds and a cyclic rate of fire of 551 rounds/min. With a stock crew, the guns can be reloaded in 18.2 seconds; with an aced crew, they can be reloaded in 14 seconds. The 7.72 mm Lewis 1916 machine gun has an absolute maximum range of about 1.7 km against surface targets.<br />
<br />
The 7.72 mm Lewis 1916 machine guns, like other low-calibre machine guns, each individually have very poor damage outputs. With their relatively large magazine size and eight of them in total, though, MTB-1(1) is able to destroy most opponents without needing to reload, assuming that most of the shots land. This, however, comes at the cost of an incredibly long reload, the longest of any reserve vessel and one of the longest of any coastal fleet vessel in general. Because of this, it's best to always fire off any remaining ammunition after engagements to begin reloading in safety and to ensure full magazines at the start of the next engagement.<br />
<br />
{{Notice|Turrets are named sequentially, clockwise, starting at the bow}}<br />
<br />
{| class="wikitable" style="text-align:center" width="50%"<br />
! colspan="4" | Primary armament guidance<br />
|-<br />
! colspan="2" rowspan="1" | No.1 Turret (fore)<br />
! colspan="2" rowspan="1" | No.2 Turret (aft)<br />
|-<br />
! Horizontal !! Vertical !! Horizontal !! Vertical<br />
|-<br />
| ±180° || -5°/+43° || ±160° || -5°/+43°<br />
|-<br />
|}<br />
<br />
The front gun mount is able to fire in all directions except in a ~34° arc directly behind it. Because of the depth charge racks, the aft gun mount is unable to target any close-range targets in a ~42° arc on each side facing forwards, even if the depth charge racks are empty. The rear gun mount also cannot fire in a ~30° arc directly behind either. Only the front gun mount is able to fully rotate 360°.<br />
<br />
There are three ammunition types available:<br />
<br />
* Universal: {{Annotation|AP|Armour-piercing}}{{-}}{{Annotation|T|Tracer}}{{-}}{{Annotation|AP|Armour-piercing}}{{-}}{{Annotation|T|Tracer}}<br />
<br />
* 7.7 mm AP belt: {{Annotation|AP|Armour-piercing}}{{-}}{{Annotation|AP|Armour-piercing}}{{-}}{{Annotation|AP|Armour-piercing}}{{-}}{{Annotation|T|Tracer}}<br />
<br />
* 7.7 mm API belt: {{Annotation|IT|Incendiary tracer}}{{-}}{{Annotation|IT|Incendiary tracer}}{{-}}{{Annotation|IT|Incendiary tracer}}{{-}}{{Annotation|AP|Armour-piercing}}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="7" | Penetration statistics (belt)<br />
|-<br />
! rowspan="2" data-sort-type="text" | Belt<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| Universal || 10 || 9 || 8 || 7 || 6 || 5<br />
|-<br />
| 7.7 mm AP belt || 10 || 9 || 8 || 7 || 6 || 5<br />
|-<br />
| 7.7 mm API belt || 10 || 9 || 7 || 6 || 5 || 5<br />
|-<br />
|}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="8" | Penetration statistics (shell)<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! rowspan="2" | Type of<br>warhead<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| AP || {{Annotation|AP|Armour-piercing}} || 10 || 9 || 8 || 7 || 6 || 5<br />
|-<br />
| T || {{Annotation|T|Tracer}} || 9 || 8 || 7 || 6 || 5 || 4<br />
|-<br />
| IT || {{Annotation|IT|Incendiary tracer}} || 10 || 9 || 7 || 6 || 5 || 5<br />
|-<br />
|}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="10" | Shell details<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! rowspan="2" | Type of<br>warhead<br />
! rowspan="2" | Velocity<br>(m/s)<br />
! rowspan="2" | Projectile<br>Mass (kg)<br />
! rowspan="2" | Fuse delay<br>(m)<br />
! rowspan="2" | Fuse sensitivity<br>(mm)<br />
! rowspan="2" | Explosive Mass<br>(TNT equivalent) (g)<br />
! colspan="3" | Ricochet<br />
|-<br />
! 0% !! 50% !! 100%<br />
|-<br />
| AP || {{Annotation|AP|Armour-piercing}} || 853 || 0.01 || N/A || N/A || N/A || 47° || 56° || 65°<br />
|-<br />
| T || {{Annotation|T|Tracer}} || 835 || 0.01 || N/A || N/A || N/A || 47° || 56° || 65°<br />
|-<br />
| IT || {{Annotation|IT|Incendiary tracer}} || 920 || 0.01 || N/A || N/A || N/A || 47° || 56° || 65°<br />
|-<br />
|}<br />
<br />
While the armour-piercing round and the the incendiary tracer round deal about the same amount of the damage, the standard tracer round deals incredibly little damage to both surface targets and aircraft. Because of this, the AP belt is a strict upgrade from the default belt. Compared to the AP rounds, the IT rounds also have a much higher muzzle velocity. Altogether, this makes the API belt the best overall, due both to its lack of standard tracer rounds and better balistic properties.<br />
<br />
=== Additional armament ===<br />
{{Specs-Fleet-Additional}}<br />
<!-- ''Describe the available additional armaments of the ship: depth charges, mines, torpedoes. Talk about their positions, available ammunition and launch features such as dead zones of torpedoes. If there is no additional armament, remove this section.'' --><br />
{{main|18 inch Mark XII (450 mm)|Mk.VII depth charge}}<br />
<br />
MTB-1(1) can be outfitted with the following:<br />
<br />
* Without load<br />
* 2 x Mk.XII torpedo<br />
* 4 x Mk.VII depth charge<br />
* 2 x Mk.XII torpedo, 4 x Mk.VII depth charge<br />
<br />
'''Torpedoes'''<br />
<br />
MTB-1(1) can carry two 18 inch Mark XII torpedoes. These are carried internally in the aft of the boat and are launched through the transom tail first, i.e. facing forwards.<br />
<br />
{| class="wikitable" style="text-align:center" width="100%"<br />
! colspan="9" | Torpedo characteristics<br />
|-<br />
! Torpedo Mode !! Mass (kg) !! Maximum speed in water (km/h) !! Travel distance (km) !! Depth stroke (m) !! Arming distance (m) !! Explosive type !! Explosive mass (kg) !! TNT equivalent (kg)<br />
|-<br />
| {{Annotation|No|'Torpedo Mode' modification uninstalled}} || 702 || 50 || 3.20 || 1 || 50 || TNT || 176 || 176<br />
|-<br />
| {{Annotation|Yes|'Torpedo Mode' modification installed}} || 702 || 74 || 1.37 || 1 || 50 || TNT || 176 || 176<br />
|}<br />
<br />
The 18-inch Mk.XII is fairly average in terms of maximum speed, though it has a rather short maximum range and small explosive mass compared to other torpedoes. Still, the range is good enough for coastal maps, and a hit with the Mk.XII torpedo is more than enough to destroy any boat. <br />
<br />
The Torpedo Mode modification is available as a rank IV modification. Installing it will give the following changes:<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="2" | Torpedo mode specification changes<br />
|-<br />
! Max distance (m)<br />
! Max speed (m/s)<br />
|-<br />
| -1829|| +7<br />
|-<br />
|}<br />
<br />
Once unlocked, it's best to always keep Torpedo Mode installed. The maximum speed of a torpedo is much more valuable in coastal battles than its maximum range. Coastal fleet maps are also small enough that the decreased range with Torpedo Mode installed isn't much of an issue. Note, though, that the Torpedo Mode modification on MTB-1(1) has the opposite effect compared to most other vessels. Typically, the maximum range is increased at the cost of speed.<br />
<br />
In RB, always set the depth stroke to the minimum 1 m setting. This is because many vessels that MTB-1(1) can face will not have a deep enough draught to fuse the torpedo at a depth stroke setting of 4 m. In AB, depth stroke is automatically set to the most optimal setting.<br />
<br />
When using torpedoes, be aware that unless they are already launched, the torpedoes be shot at and destroyed. Upon being destroyed, there is relatively high chance for them to detonate, instantly destroying the boat. To avoid this, fire the torpedoes early on in battle — as well as after any subsequent reloads in AB — or simply don't take them at all. Torpedoes are a situational weapon, so it's largely down to personal preference whether or not to take them.<br />
<br />
'''Depth Charges'''<br />
<br />
[[File:{{PAGENAME}}_DC_Order.png|thumb|Mk.VII depth charges numbered according to their drop order.]]<br />
<br />
The Mk.VII depth charges are carried behind the bridge in racks, two on each side. They are dropped one at a time in the following order:<br />
<br />
# Port, foremost<br />
# Starboard, foremost<br />
# Port, aftmost<br />
# Starboard, aftmost<br />
<br />
Before spawning, the detonation time delay can be set anywhere between 3 seconds and 10 seconds.<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="7" | Depth charge characteristics<br />
|-<br />
! Mass (kg)<br />
! Explosive type<br />
! Explosive mass (kg)<br />
! TNT equivalent (kg)<br />
! HE armour penetration (mm)<br />
! Armoured vehicle destruction radius (m)<br />
! Fragment dispersion radius (m)<br />
|-<br />
| 196 || TNT || 130 || 130 || 101 || 8 || 122 <br />
|}<br />
<br />
There is almost no practical reason to use depth charges on any naval vessel in the game. Although they usually result in a one-hit kill if used properly, they are extremely situational, requiring the player to close to point-blank ranges to even use them. In almost every case, anytime a depth charge could be used, the guns or torpedoes can be used instead to greater effect. In fact, depth charges tend to actually be a liability in battle, since they essentially act as exposed ammo racks before they're dropped. Like torpedoes, they can be shot at, and if destroyed, they have a chance to detonate, instantly destroying the boat.<br />
<br />
Despite this, some success can be had in dropping them either next to, or in front of, a large, slow target. If dropping them next to the target, remember the depth charge drop order, since it's most likely that only the depth charges dropped on the side closest to the enemy will deal any damage. If dropping in front of the target, rush in from the sides as quickly as possible and drop them all at once directly in front of the target. For both cases, set the depth charge time delay to the minimum 3 seconds, since any higher time delay will only allow the depth charge to sink further away from the target, giving them more time to move out of the way. Again, using depth charges is extremely situational, and they will only be a liability the vast majority of the time, so take them at your own discretion.<br />
<br />
== Usage in battles ==<br />
<!-- ''Describe the technique of using this ship, the characteristics of her use in a team and tips on strategy. Abstain from writing an entire guide – don't try to provide a single point of view, but give the reader food for thought. Talk about the most dangerous opponents for this vehicle and provide recommendations on fighting them. If necessary, note the specifics of playing with this vehicle in various modes (AB, RB, SB).'' --><br />
<br />
[[File:MTB-1_1_series_skin_"MTB-1_'01'".png|thumb|MTB-1(1) with the historical camouflage '''"MTB-1 '01'''', available on the [http://trade.gaijin.net Gaijin Marketplace].]]<br />
<br />
Like any other vessel armed only with low-calibre machine guns, MTB-1(1) is severely limited by her armament. The 7.72 mm Lewis 1916 machine guns have both a poor muzzle velocity and a low projectile mass, giving them a very low absolute maximum range of only about 1.7 km. Their effective range is even less at only about 1-1.25 km, since the poor ballistics of the guns makes it rather difficult to consistently hit moving targets at any further distance. Being able to consistently hit targets is especially important with MTB-1(1) as, although she carries a large number of guns, each individual machine gun has an incredibly low per-hit damage output, leaving the overall damage output less than that of her heavy machine gun or autocannon-armed counterparts. Because of this, along with the range limitation of the guns, MTB-1(1) is best played at close ranges, with engagement distances ideally starting at 1 km or less. At such short ranges, the poor ballistics of the guns aren't nearly as pronounced, making them much easier to aim.<br />
<br />
Make use of MTB-1(1)'s relatively fast top speed and terrain cover to either flank the enemy team or to rush into contested areas around capture points, but avoid long, open areas of the map wherever possible. In those areas, MTB-1(1) will most likely be completely outranged, giving giving the enemy free hits. Once in close range, try to avoid direct engagements with enemies, as MTB-1(1) will most likely lose. Instead, try to flank, supporting the team by picking off small targets distracted by teammates and calling artillery on larger enemies that the guns are are unable to damage.<br />
<br />
Although she can mostly handle one-on-one engagements, MTB-1(1) is particularly poor at dealing with multiple enemies at once. This is because of the low damage output and extremely long reload. At all times, be aware of the how much ammo are left in the guns. Getting caught during a reload will almost always lead to MTB-1(1)'s destruction, so always keep an escape route open, and use smoke to run away if necessary. In general, but especially for guns with long reloads, it's better to be proactive with the reloads. Before the magazines empty, run back to cover, then fire off any remaining ammunition in order to start reloading in safety. A good time to consider doing this with MTB-1(1) is when the magazines about half empty, or when it shows about 750 rounds left between all guns, since with any less ammo, it may be difficult to finish an engagement before needing to reload. However, do be aware that MTB-1(1) can, at most, only carry enough ammunition for 10 reloads. This doesn't tend to be much of an issue in practice because MTB-1(1) doesn't tend to survive long enough for it to become an issue, but it is something to keep in mind.<br />
<br />
As for torpedoes, either launch them down choke points or prioritize larger, slower targets such as sub-chasers that the guns are ineffective against. If targeting a specific enemy, try to launch them as close to the target as possible to allow them the least amount of time to dodge. However, try to only do this on distracted targets and when other enemies aren't around, since exposing MTB-1(1) to enemy fire just to launched the torpedoes is generally not worth the risk. If the situation doesn't present itself, it's better to just mark the target on the map for your teammates, call artillery, then disengage. As mentioned in the previous section, torpedoes are a situational weapon, and taking them at all negatively impacts survivability, so only take them if you prefer the extra utility at the cost of survivability.<br />
<br />
=== Pros and cons ===<br />
<!-- ''Summarise and briefly evaluate the vehicle in terms of its characteristics and combat effectiveness. Mark its pros and cons in the bulleted list. Try not to use more than 6 points for each of the characteristics. Avoid using categorical definitions such as "bad", "good" and the like - use substitutions with softer forms such as "inadequate" and "effective".'' --><br />
<br />
'''Pros:'''<br />
<br />
* Relatively large magazine capacity: can destroy most opponents without needing to reload<br />
* Good manoeuvrability<br />
<br />
'''Cons:'''<br />
<br />
* Only armed with low-calibre guns: very poor damage output and limited effective range<br />
* Very long reload: longest of any reserve and one of the longest among coastal vessels<br />
* Poor survivability<br />
* Relatively weak torpedoes: low explosive mass compared to other similar torpedoes<br />
<br />
== History ==<br />
<!-- ''Describe the history of the creation and combat usage of the ship in more detail than in the introduction. If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the ship and adding a block "/History" (example: <nowiki>https://wiki.warthunder.com/(Ship-name)/History</nowiki>) and add a link to it here using the <code>main</code> template. Be sure to reference text and sources by using <code><nowiki><ref></ref></nowiki></code>, as well as adding them at the end of the article with <code><nowiki><references /></nowiki></code>. This section may also include the ship's dev blog entry (if applicable) and the in-game encyclopedia description (under <code><nowiki>=== In-game description ===</nowiki></code>, also if applicable).'' --><br />
<br />
Though the Royal Navy had operated a small number of coastal boats during the first World War, by the 1930s, these flotillas had long been dissolved and the Royal Navy had yet to construct any more. The first two coastal boats since WWI were ordered on 27th September 1935 by the Royal Navy, the order being given to British Power Boat Company based at Hythe, a town near Southampton. In addition to this initial order, four more were ordered on 19th October 1935. These six boats were completed by November 1936, and, with their commissioning on 27th April 1937, the Royal Navy Coastal Forces was founded. Following this, three more boats were ordered on 7th December 1936 and nine more on 11th January 1938. In total, 18 boats were ordered, all of them being completed by 1939.<br />
<br />
These boats had a standard displacement of 18 tons and had a length of 60 ft. 4 in., a width of 13 ft. 4 in., and a draught of 2 ft. 10 in. at standard displacement. They were powered by three Napier Sea Lion petrol engines, each driving a single shaft, and could reach speeds of around 30-35 knots. Each boat could carry two 18 inch torpedoes which were stored internally on rails above the engines. On the stern were two more rails that could be folded down to the transom, extending the torpedoes' rails outside of the boat. The torpedoes fired facing forwards down the rails, after which the boat that fired them would have to turn to evade their path. In addition to torpedoes, the boats were also armed with a number of depth charges and, depending on the exact boat, up to eight Lewis guns.<br />
<br />
MTB 1, the first of the boats, was redesignated MTB 7 in 1937. Similarly, MTB 7 was redesignated MTB 1 in the same year. In 1938, the former MTB 1, now MTB 7, was redesignated MTB 13. At the same time, MTB 13 was redesignated MTB 7. Finally, later in 1938, the former MTB 1, now MTB 13, was again redesignated MTB 19. Thus, by the start of WWII, the boats were numbered MTBs 1-12 and 14-19 and formed two MTB flotillas: 1st MTB Flotilla, consisting of MTBs 1-6 and 14-19; and 2nd MTB Flotilla, consisting of MTBs 7-12.<br />
<br />
The 1st MTB Flotilla was sent to the Mediterranean at the start of WWII and was based at HMS Vulcan in Malta. They were soon recalled back to England in December 1939 to be based at HMS Beehive, Felixstowe, though MTB 19 was sent to HMS Vernon, Portsmouth. Along the way back, due to bad weather, MTB 6 had to be foundered. After they arrived, the remaining boats continued to operate in the English Channel until they were either lost or replaced. Those lost were MTBs 15, 16, and 17, all of which were mined in 1940.<br />
<br />
The 2nd MTB Flotilla was commissioned in 1938 and assigned to HMS Tamar, Hong Kong. They were all lost during the Battle of Hong Kong in December 1941. MTB 8 was bombed by IJN aircraft and was damaged beyond repair, and MTB 12 was sunk in action by IJN landing craft. The remainder of the 2nd MTB Flotilla was scuttled on 26th December 1941.<br />
<br />
== Media ==<br />
<!-- ''Excellent additions to the article would be video guides, screenshots from the game, and photos.'' --><br />
<br />
;'''Skins'''<br />
<br />
* [https://live.warthunder.com/feed/camouflages/?vehicleCountry=britain&vehicleType=ship&vehicleClass=torpedo_boat&vehicle=uk_mtb_1series Skins and camouflages for the {{PAGENAME}} from live.warthunder.com.]<br />
<br />
;'''Images'''<br />
<gallery mode="packed" heights="150"><br />
Mtb-1 1 series.png||MTB-1(1) in the hangar<br />
MTB-1 damaged-1.jpg||MTB-1(1) defends a capture point, despite numerous damages.<br />
</gallery><br />
<br />
== See also ==<br />
<!-- ''Links to articles on the War Thunder Wiki that you think will be useful for the reader, for example:''<br />
* ''reference to the series of the ship;''<br />
* ''links to approximate analogues of other nations and research trees.'' --><br />
;Vehicles of the same class<br />
* {{Specs-Link|uk_mtb_2series}}<br />
* [[MTB-1 (Family)]]<br />
<br />
;Similar vehicles<br />
* {{Specs-Link|uk_fairmile_a_ml100}}<br />
* {{Specs-Link|uk_mtb_vosper_1series}}<br />
<br />
== External links ==<br />
<!-- ''Paste links to sources and external resources, such as:''<br />
* ''topic on the official game forum;''<br />
* ''other literature.'' --><br />
<br />
* [https://www.unithistories.com/units_british/RN_MTBs.html#MTB_Boats <nowiki>[Unit Histories]</nowiki> Royal Navy Coastal Forces 1940-1945]<br />
* [http://www.naval-history.net/WW2BritishLosses3Coastal.htm <nowiki>[naval-history.net]</nowiki> British vessels lost at sea in World War 2 - MGB, MTB, SGB, ML, etc] - originally published in ''British Vessels Lost at Sea, 1935-45'', His Majesty's Stationary Office, 1947<br />
* [http://www.mwadui.com/HongKong/Coastal-Forces-Hong-Kong.htm <nowiki>[mwadui.com]</nowiki> Royal Navy Coastal Forces - Hong Kong]<br />
* [http://www.coastal-forces.org.uk/history.html <nowiki>[Coastal Forces Heritage Trust]</nowiki> Coastal Forces of World War II - History]<br />
* [https://www.yalumba.co.uk/Framesets/British%20Power%20Boat%20Co.htm <nowiki>[yalumba.co.uk]</nowiki> British Power Boat Co Page 1]<br />
* [https://www.yalumba.co.uk/Framesets/British%20Power%20Boat%20Co%20-%20page%205,%20MTBs.html <nowiki>[yalumba.co.uk]</nowiki> British Power Boat Co Page 5]<br />
* [[wikipedia:Coastal_Forces_of_the_Royal_Navy|[Wikipedia] Coastal Forces of the Royal Navy]]<br />
<br />
{{Britain boats}}</div>U27474208https://old-wiki.warthunder.com/index.php?title=MTB-1(2)&diff=107660MTB-1(2)2021-07-27T09:08:03Z<p>U27474208: Updated to 2.7; added penetration by shell and shell details</p>
<hr />
<div>{{About<br />
| about = British motor torpedo boat '''{{PAGENAME}}'''<br />
| usage = other versions<br />
| link = MTB-1 (Family)<br />
}}<br />
{{Specs-Card<br />
|code=uk_mtb_2series<br />
|images={{Specs-Card-Image|GarageImage_{{PAGENAME}}.jpg}}<br />
}}<br />
<br />
== Description ==<br />
<!-- ''In the first part of the description, cover the history of the ship's creation and military application. In the second part, tell the reader about using this ship in the game. Add a screenshot: if a beginner player has a hard time remembering vehicles by name, a picture will help them identify the ship in question.'' --><br />
The '''{{Specs|name}}''' is a premium rank {{Specs|rank}} British motor torpedo boat {{Battle-rating}}. It was introduced in [[Update 1.85 "Supersonic"]]. With the split of the naval tech trees in [[Update "New Power"]], {{PAGENAME}} was moved to the coastal fleet tech tree.<br />
<br />
The MTB-1(2) is as a premium variant of {{Specs-Link|uk_mtb_1series}}, the reserve vehicle of the British coastal fleet tech tree. Largely similar to MTB-1(1), MTB-1(2) differs in the amount of depth charges that she can carry as well as the placement of the gun mounts, the latter being particularly important as the better firing angles gives MTB-1(2) some extra versatility in combat.<br />
<br />
== General info ==<br />
=== Survivability and armour ===<br />
{{Specs-Fleet-Armour}}<br />
<!-- ''Talk about the vehicle's armour. Note the most well-defended and most vulnerable zones, e.g. the ammo magazine. Evaluate the composition of components and assemblies responsible for movement and manoeuvrability. Evaluate the survivability of the primary and secondary armaments separately. Don't forget to mention the size of the crew, which plays an important role in fleet mechanics. Save tips on preserving survivability for the "Usage in battles" section. If necessary, use a graphical template to show the most well-protected or most vulnerable points in the armour.'' --><br />
<br />
[[File:MTB-1_2_series_internals.png|thumb|{{PAGENAME}} internals (starboard side). Note the ammo storages just in front of the bridge.]]<br />
<br />
MTB-1(2) has the following armour layout:<br />
<br />
* Hull: 24 mm, wood<br />
* Superstructure: 2 mm, steel<br />
<br />
Any gun in the game will easily be able to penetrate the hull and superstructure at any practical range.<br />
<br />
The hull is split into three sections. Starting from the bow and working towards the stern, the first section starts at the bow and ends after the ammunition storage; the second ends just behind the bridge; and the third ends at the stern. <br />
<br />
MTB-1(2) can be hull-broken by any round with a large enough diameter and explosive mass. In general, this is limited to HE rounds greater with a diameter greater than or equal to 4 inches (102 mm) with an explosive mass greater than 1.5 kg. At MTB-1(2)'s own battle rating, there is no one gun capable of hull-breaking her.<br />
<br />
There is one ammunition storage that holds ammunition for both the fore and aft gun turrets. It is located directly behind the forward gun turret just above the waterline. Destroying it will instantly destroy the boat.<br />
<br />
MTB-1(2) has a crew complement of 11. With a stock crew, it is knocked out when 7 crew are lost; with an aced crew, this is increased to 8. <br />
<br />
While MTB-1(2)'s crew complement is about average when comparing vessels of the same battle rating, her overall survivability is rather poor when compared to everything in her battle rating range. The placement of the guns does allow MTB-1(2) to bow-tank without sacrificing firepower. However, due to the distribution of the crew, bow-tanking does not increase the survivability nearly as much as it does with some other vessels, so it is not a very viable tactic with MTB-1(2). With an aced crew and no prior damage, destroying only the components possible to hit from the front — the bow section, the bridge, and both gun turrets — already eliminates enough crew to prevent MTB-1(2) from repairing. Either doing slight damage to any of the other hull sections or destroying the bridge again when it is automatically repaired is enough to knock out MTB-1(2).<br />
<br />
=== Mobility ===<br />
{{Specs-Fleet-Mobility}}<br />
<!-- ''Write about the ship's mobility. Evaluate its power and manoeuvrability, rudder rerouting speed, stopping speed at full tilt, with its maximum forward and reverse speed.'' --><br />
<br />
{{NavalMobility<br />
|SpeedForwardStockAB = 63<br />
|SpeedBackStockAB = 32<br />
|TurnTimeStockAB = 18.64<br />
|TurnSpeedStockAB = 43<br />
<br />
|TurnTimeSpadedAB = 12.67<br />
|TurnSpeedSpadedAB = 40<br />
<br />
|SpeedForwardStockRB = 53<br />
|SpeedBackStockRB = 26<br />
|TurnTimeStockRB = 20.77<br />
|TurnSpeedStockRB = 40<br />
<br />
|TurnTimeSpadedRB = 17.44<br />
|TurnSpeedSpadedRB = 43<br />
}}<br />
<br />
While her top speed is on the slower side compared to other motor torpedo boats, MTB-1(2)'s manoeuvrability is actually rather good. With a tight turning circle and a decent enough top speed, the mobility is suitable enough for most situations, although the lower top speed really hurts her potential for flanking on certain maps.<br />
<br />
MTB-1(2) has a displacement of 22.4 tons. Because of her small size and relatively low displacement, MTB-1(2) can be an unstable firing platform in rough waters.<br />
<br />
=== Modifications and economy ===<br />
{{Specs-Economy}}<br />
<br />
As a premium vehicle, all modifications are unlocked for free.<br />
<br />
== Armament ==<br />
{{Specs-Fleet-Armaments}}<br />
=== Primary armament ===<br />
{{Specs-Fleet-Primary}}<br />
<!-- ''Provide information about the characteristics of the primary armament. Evaluate their efficacy in battle based on their reload speed, ballistics and the capacity of their shells. Add a link to the main article about the weapon: <code><nowiki>{{main|Weapon name (calibre)}}</nowiki></code>. Broadly describe the ammunition available for the primary armament, and provide recommendations on how to use it and which ammunition to choose.'' --><br />
{{main|Lewis 1916 (7.72 mm)}}<br />
<br />
The primary armament consists of eight 7.72 mm Lewis 1916 machine guns in two quadruple mounts, one on the bow and one on the stern. There are 3,880 rounds of ammunition available for each mount, 970 rounds per gun, for a total of 7,760 rounds. Stock, the mounts can traverse horizontally and vertically at a rate of 64°/s; with the "Primary Armament Targeting" modification installed, this is increased to 75°/s. Each gun has a magazine capacity of 97 rounds and a cyclic rate of fire of 551 rounds/min. With a stock crew, the guns can be reloaded in 18.2 seconds; with an aced crew, they can be reloaded in 14 seconds. The 7.72 mm Lewis 1916 machine gun has an absolute maximum range of about 1.7 km against surface targets.<br />
<br />
The 7.72 mm Lewis 1916 machine guns, like other low-calibre machine guns, each individually have very poor damage outputs. With their relatively large magazine size and eight of them in total, though, MTB-1(2) is able to destroy most opponents without needing to reload, assuming that most of the shots land. This, however, comes at the cost of an incredibly long reload, the longest of any reserve vessel and one of the longest of any coastal fleet vessel in general. Because of this, it's best to always fire off any remaining ammunition after engagements to begin reloading in safety and to ensure full magazines at the start of the next engagement.<br />
<br />
{{Notice|Turrets are named sequentially, clockwise, starting at the bow}}<br />
<br />
{| class="wikitable" style="text-align:center" width="50%"<br />
! colspan="4" | Primary armament guidance<br />
|-<br />
! colspan="2" rowspan="1" | No.1 Turret (starboard)<br />
! colspan="2" rowspan="1" | No.2 Turret (port)<br />
|-<br />
! Horizontal !! Vertical !! Horizontal !! Vertical<br />
|-<br />
| ±180° || -5°/+43° || ±180° || -5°/+43°<br />
|-<br />
|}<br />
<br />
Both gun mounts are able to fire in all directions except for a ~47° arc in the direction of the opposite mount. Both gun mounts are able to fully rotate 360°.<br />
<br />
There are three ammunition types available:<br />
<br />
* Universal: {{Annotation|AP|Armour-piercing}}{{-}}{{Annotation|T|Tracer}}{{-}}{{Annotation|AP|Armour-piercing}}{{-}}{{Annotation|T|Tracer}}<br />
<br />
* 7.7 mm AP belt: {{Annotation|AP|Armour-piercing}}{{-}}{{Annotation|AP|Armour-piercing}}{{-}}{{Annotation|AP|Armour-piercing}}{{-}}{{Annotation|T|Tracer}}<br />
<br />
* 7.7 mm API belt: {{Annotation|IT|Incendiary tracer}}{{-}}{{Annotation|IT|Incendiary tracer}}{{-}}{{Annotation|IT|Incendiary tracer}}{{-}}{{Annotation|AP|Armour-piercing}}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="7" | Penetration statistics (belt)<br />
|-<br />
! rowspan="2" data-sort-type="text" | Belt<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| Universal || 10 || 9 || 8 || 7 || 6 || 5<br />
|-<br />
| 7.7 mm AP belt || 10 || 9 || 8 || 7 || 6 || 5<br />
|-<br />
| 7.7 mm API belt || 10 || 9 || 7 || 6 || 5 || 5<br />
|-<br />
|}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="8" | Penetration statistics (shell)<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! rowspan="2" | Type of<br>warhead<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| AP || {{Annotation|AP|Armour-piercing}} || 10 || 9 || 8 || 7 || 6 || 5<br />
|-<br />
| T || {{Annotation|T|Tracer}} || 9 || 8 || 7 || 6 || 5 || 4<br />
|-<br />
| IT || {{Annotation|IT|Incendiary tracer}} || 10 || 9 || 7 || 6 || 5 || 5<br />
|-<br />
|}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="10" | Shell details<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! rowspan="2" | Type of<br>warhead<br />
! rowspan="2" | Velocity<br>(m/s)<br />
! rowspan="2" | Projectile<br>Mass (kg)<br />
! rowspan="2" | Fuse delay<br>(m)<br />
! rowspan="2" | Fuse sensitivity<br>(mm)<br />
! rowspan="2" | Explosive Mass<br>(TNT equivalent) (g)<br />
! colspan="3" | Ricochet<br />
|-<br />
! 0% !! 50% !! 100%<br />
|-<br />
| AP || {{Annotation|AP|Armour-piercing}} || 853 || 0.01 || N/A || N/A || N/A || 47° || 56° || 65°<br />
|-<br />
| T || {{Annotation|T|Tracer}} || 835 || 0.01 || N/A || N/A || N/A || 47° || 56° || 65°<br />
|-<br />
| IT || {{Annotation|IT|Incendiary tracer}} || 920 || 0.01 || N/A || N/A || N/A || 47° || 56° || 65°<br />
|-<br />
|}<br />
<br />
While the armour-piercing round and the the incendiary tracer round deal about the same amount of the damage, the standard tracer round deals incredibly little damage to both surface targets and aircraft. Because of this, the AP belt is a strict upgrade from the default belt. Compared to the AP rounds, the IT rounds also have a much higher muzzle velocity. Altogether, this makes the API belt the best overall, due both to its lack of standard tracer rounds and better balistic properties.<br />
<br />
=== Additional armament ===<br />
{{Specs-Fleet-Additional}}<br />
<!-- ''Describe the available additional armaments of the ship: depth charges, mines, torpedoes. Talk about their positions, available ammunition and launch features such as dead zones of torpedoes. If there is no additional armament, remove this section.'' --><br />
{{main|18 inch Mark XII (450 mm)|Mk.VII depth charge}}<br />
<br />
MTB-1(2) can be outfitted with the following:<br />
<br />
# 2 x Mk.XII torpedo<br />
# 6 x Mk.VII depth charge<br />
# 2 x Mk.XII torpedo, 6 x Mk.VII depth charge<br />
# Without load<br />
<br />
'''Torpedoes'''<br />
<br />
MTB-1(2) can carry two 18 inch Mark XII torpedoes. These are carried internally in the aft of the boat and are launched through the transom tail first, i.e. facing forwards.<br />
<br />
{| class="wikitable" style="text-align:center" width="100%"<br />
! colspan="9" | Torpedo characteristics<br />
|-<br />
! Torpedo Mode !! Mass (kg) !! Maximum speed in water (km/h) !! Travel distance (km) !! Depth stroke (m) !! Arming distance (m) !! Explosive type !! Explosive mass (kg) !! TNT equivalent (kg)<br />
|-<br />
| {{Annotation|No|'Torpedo Mode' modification uninstalled}} || 702 || 50 || 3.20 || 1 || 50 || TNT || 176 || 176<br />
|-<br />
| {{Annotation|Yes|'Torpedo Mode' modification installed}} || 702 || 74 || 1.37 || 1 || 50 || TNT || 176 || 176<br />
|}<br />
<br />
The 18-inch Mk.XII is fairly average in terms of maximum speed, though it has a rather short maximum range and small explosive mass compared to other torpedoes. Still, the range is good enough for coastal maps, and a hit with the Mk.XII torpedo is more than enough to destroy any boat. <br />
<br />
The Torpedo Mode modification is available as a rank IV modification. Installing it will give the following changes:<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="2" | Torpedo mode specification changes<br />
|-<br />
! Max Distance (m)<br />
! Max Speed (m/s)<br />
|-<br />
| -1829|| +7<br />
|-<br />
|}<br />
<br />
Since it's unlocked from the start, it's best to always keep Torpedo Mode installed. The maximum speed of a torpedo is more valuable in coastal battles than its maximum range. Coastal fleet maps are also small enough that the decreased range with Torpedo Mode installed isn't much of an issue. Note, though, that the Torpedo Mode modification on MTB-1(2) has the opposite effect compared to most other vessels. Typically, the maximum range is increased at the cost of speed.<br />
<br />
In RB, always set the depth stroke to the minimum 1 m setting. This is because many vessels that MTB-1(2) can face will not have a deep enough draught to fuse the torpedo at a depth stroke setting of 4 m. In AB, depth stroke is automatically set to the most optimal setting.<br />
<br />
When using torpedoes, be aware that unless they are already launched, the torpedoes be shot at and destroyed. Upon being destroyed, there is relatively high chance for them to detonate, instantly destroying the boat. To avoid this, fire the torpedoes early on in battle — as well as after any subsequent reloads in AB — or simply don't take them at all. Torpedoes are a situational weapon, so it's largely down to personal preference whether or not to take them.<br />
<br />
'''Depth Charges'''<br />
<br />
[[File:{{PAGENAME}}_DC_Order.png|thumb|Mk.VII depth charges numbered according to their drop order.]]<br />
<br />
The Mk.VII depth charges are carried around the bridge area, three on each side. They are dropped one at a time in the following order:<br />
<br />
# Port, foremost<br />
# Starboard, foremost<br />
# Port, centre<br />
# Starboard, centre<br />
# Port, aftmost<br />
# Starboard, aftmost<br />
<br />
Before spawning, the detonation time delay can be set anywhere between 3 seconds and 10 seconds.<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="7" | Depth charge characteristics<br />
|-<br />
! Mass (kg)<br />
! Explosive type<br />
! Explosive mass (kg)<br />
! TNT equivalent (kg)<br />
! HE armour<br>penetration (mm)<br />
! Armoured vehicle<br>destruction radius (m)<br />
! Fragment dispersion<br>radius (m)<br />
|-<br />
| 196 || TNT || 130 || 130 || 101 || 8 || 122 <br />
|}<br />
<br />
There is almost no practical reason to use depth charges on any naval vessel in the game. Although they usually result in a one-hit kill if used properly, they are extremely situational, requiring the player to close to point-blank ranges to even use them. In almost every case, anytime a depth charge could be used, the guns or torpedoes can be used instead to greater effect. In fact, depth charges tend to actually be a liability in battle, since they essentially act as exposed ammo racks before they're dropped. Like torpedoes, they can be shot at, and if destroyed, they have a chance to detonate, instantly destroying the boat.<br />
<br />
Despite this, some success can be had in dropping them either next to, or in front of a large, slow target. If dropping them next to the target, remember the depth charge drop order, since it's most likely that only the depth charges dropped on the side closest to the enemy will deal any damage. If dropping in front of the target, rush in from the sides as quickly as possible and drop them all at once directly in front of the target. For both cases, set the depth charge time delay to the minimum 3 seconds, since any higher time delay will only allow the depth charge to sink further away from the target, giving them more time to move out of the way. Again, using depth charges is extremely situational, and they will only be a liability the vast majority of the time, so take them at your own discretion.<br />
<br />
== Usage in battles ==<br />
<!-- ''Describe the technique of using this ship, the characteristics of her use in a team and tips on strategy. Abstain from writing an entire guide – don't try to provide a single point of view, but give the reader food for thought. Talk about the most dangerous opponents for this vehicle and provide recommendations on fighting them. If necessary, note the specifics of playing with this vehicle in various modes (AB, RB, SB).'' --><br />
<br />
MTB-1(2) is largely identical to her tech tree equivalent, {{Specs-Link|uk_mtb_1series}}. As such, she shares many of the same drawbacks — low per-hit damage, low maximum range, and generally poor survivability — although with one key difference: while the gun turrets are mounted on the fore and aft on MTB-1(2), they are mounted side-by-side amidships on MTB-1(2). This arrangement allows MTB-1(2) extra versatility over MTB-1(2), since all of the guns can now be brought on target without needing to angle the hull. Aside from this, though, MTB-1(2) has much the same playstyle as MTB-1(1).<br />
<br />
Like MTB-1(1), the limitations of the guns dictate MTB-1(2)'s playstyle. The 7.7 mm Lewis machine guns have poor ballistic qualities and a absolute maximum range of only about 1.7 km. Because of this, stick to close-range engagements, ideally within 1 km, and avoid open areas of the map wherever possible. Additionally, the guns have a very low per-hit damage output, so avoid direct confrontations as much as possible. Instead, use MTB-1(2)'s decent top speed to rush into flanking positions or contested areas around capture points, making use of hard cover to play a supportive role, assisting your teammates in taking down preoccupied enemies. For larger targets unaffected by the guns, mark their position on the map for your team and call artillery.<br />
<br />
Another thing to be aware of is the extremely long reload of the guns. Running out of ammo mid-engagement will always always lead to MTB-1(2)'s destruction, so at all times, keep an eye on how much ammunition is left in the guns and try to always keep an escape route open, using smoke to run away if necessary. In general, but especially for guns with long reloads, it's a good idea to be proactive with the reloads. Before the magazines empty, run back to cover, then fire off any remaining ammunition in order to start reloading in safety. A good time to consider doing this with MTB-1(2) is when the magazines about half empty, or when it shows about 750 rounds left between all guns, since with any less ammo, it may be difficult to finish an engagement before needing to reload. However, do be aware that MTB-1(2) can, at most, only carry enough ammunition for 10 reloads. This doesn't tend to be much of an issue in practice because MTB-1(2) doesn't tend to survive long enough for it to become an issue, but it is something to keep in mind.<br />
<br />
As for torpedoes, either launch them down choke points or prioritize larger, slower targets such as sub-chasers that the guns are ineffective against. If targeting a specific enemy, try to launch them as close to the target as possible to allow them the least amount of time to dodge. However, try to only do this on distracted targets and when other enemies aren't around, since exposing MTB-1(2) to enemy fire just to launched the torpedoes is generally not worth the risk. If the situation doesn't present itself, it's better to just mark the target on the map for your teammates, call artillery, then disengage. As mentioned in the previous section, torpedoes are a situational weapon, and taking them at all negatively impacts survivability, so only take them if you prefer the extra utility at the cost of survivability.<br />
<br />
=== Pros and cons ===<br />
<!-- ''Summarise and briefly evaluate the vehicle in terms of its characteristics and combat effectiveness. Mark its pros and cons in the bulleted list. Try not to use more than 6 points for each of the characteristics. Avoid using categorical definitions such as "bad", "good" and the like - use substitutions with softer forms such as "inadequate" and "effective".'' --><br />
<br />
'''Pros:'''<br />
<br />
* Relatively large magazine capacity: can destroy most opponents without needing to reload<br />
* Good manoeuvrability<br />
* Premium bonus<br />
<br />
'''Cons:'''<br />
<br />
* Only armed with low-calibre guns: very poor damage output and limited effective range<br />
* Very long reload: longest of any reserve and one of the longest among coastal vessels<br />
* Poor survivability<br />
* Relatively weak torpedoes: low explosive mass compared to other similar torpedoes<br />
<br />
== History ==<br />
<!-- ''Describe the history of the creation and combat usage of the ship in more detail than in the introduction. If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the ship and adding a block "/History" (example: <nowiki>https://wiki.warthunder.com/(Ship-name)/History</nowiki>) and add a link to it here using the <code>main</code> template. Be sure to reference text and sources by using <code><nowiki><ref></ref></nowiki></code>, as well as adding them at the end of the article with <code><nowiki><references /></nowiki></code>. This section may also include the ship's dev blog entry (if applicable) and the in-game encyclopedia description (under <code><nowiki>=== In-game description ===</nowiki></code>, also if applicable).'' --><br />
<br />
Though the Royal Navy had operated a small number of coastal boats during the first World War, by the 1930s, these flotillas had long been dissolved and the Royal Navy had yet to construct any more. The first two coastal boats since WWI were ordered on 27th September 1935 by the Royal Navy, the order being given to British Power Boat Company based at Hythe, a town near Southampton. In addition to this initial order, four more were ordered on 19th October 1935. These six boats were completed by November 1936, and, with their commissioning on 27th April 1937, the Royal Navy Coastal Forces was founded. Following this, three more boats were ordered on 7th December 1936 and nine more on 11th January 1938. In total, 18 boats were ordered, all of them being completed by 1939.<br />
<br />
These boats had a standard displacement of 18 tons and had a length of 60 ft. 4 in., a width of 13 ft. 4 in., and a draught of 2 ft. 10 in. at standard displacement. They were powered by three Napier Sea Lion petrol engines, each driving a single shaft, and could reach speeds of around 30-35 knots. Each boat could carry two 18 inch torpedoes which were stored internally on rails above the engines. On the stern were two more rails that could be folded down to the transom, extending the torpedoes' rails outside of the boat. The torpedoes fired facing forwards down the rails, after which the boat that fired them would have to turn to evade their path. In addition to torpedoes, the boats were also armed with a number of depth charges and, depending on the exact boat, up to eight Lewis guns.<br />
<br />
MTB 1, the first of the boats, was redesignated MTB 7 in 1937. Similarly, MTB 7 was redesignated MTB 1 in the same year. In 1938, the former MTB 1, now MTB 7, was redesignated MTB 13. At the same time, MTB 13 was redesignated MTB 7. Finally, later in 1938, the former MTB 1, now MTB 13, was again redesignated MTB 19. Thus, by the start of WWII, the boats were numbered MTBs 1-12 and 14-19 and formed two MTB flotillas: 1st MTB Flotilla, consisting of MTBs 1-6 and 14-19; and 2nd MTB Flotilla, consisting of MTBs 7-12.<br />
<br />
The 1st MTB Flotilla was sent to the Mediterranean at the start of WWII and was based at HMS Vulcan in Malta. They were soon recalled back to England in December 1939 to be based at HMS Beehive, Felixstowe, though MTB 19 was sent to HMS Vernon, Portsmouth. Along the way back, due to bad weather, MTB 6 had to be foundered. After they arrived, the remaining boats continued to operate in the English Channel until they were either lost or replaced. Those lost were MTBs 15, 16, and 17, all of which were mined in 1940.<br />
<br />
The 2nd MTB Flotilla was commissioned in 1938 and assigned to HMS Tamar, Hong Kong. They were all lost during the Battle of Hong Kong in December 1941. MTB 8 was bombed by IJN aircraft and was damaged beyond repair, and MTB 12 was sunk in action by IJN landing craft. The remainder of the 2nd MTB Flotilla was scuttled on 26th December 1941.<br />
<br />
== Media ==<br />
<!-- ''Excellent additions to the article would be video guides, screenshots from the game, and photos.'' --><br />
<br />
;'''Skins'''<br />
<br />
* [https://live.warthunder.com/feed/camouflages/?vehicleCountry=britain&vehicleType=ship&vehicleClass=torpedo_boat&vehicle=uk_mtb_2series Skins and camouflages for the {{PAGENAME}} from live.warthunder.com.]<br />
<br />
;'''Images'''<br />
<gallery mode="packed" heights="150"><br />
Uk mtb 2series.jpg||{{PAGENAME}} featured in an in-game art.<br />
Mtb-1_2_series_variant.png||MTB-1(2) in the hangar<br />
</gallery><br />
<br />
== See also ==<br />
<!-- ''Links to articles on the War Thunder Wiki that you think will be useful for the reader, for example:''<br />
* ''reference to the series of the ship;''<br />
* ''links to approximate analogues of other nations and research trees.'' --><br />
;Vehicles of the same class<br />
* {{Specs-Link|uk_mtb_1series}}<br />
* [[MTB-1 (Family)]]<br />
<br />
;Similar vehicles<br />
* {{Specs-Link|uk_fairmile_a_ml100}}<br />
* {{Specs-Link|uk_mtb_vosper_1series}}<br />
<br />
== External links ==<br />
<!-- ''Paste links to sources and external resources, such as:''<br />
* ''topic on the official game forum;''<br />
* ''encyclopedia page on the ship;''<br />
* ''other literature.'' --><br />
<br />
* [https://www.unithistories.com/units_british/RN_MTBs.html#MTB_Boats <nowiki>[Unit Histories]</nowiki> Royal Navy Coastal Forces 1940-1945]<br />
* [http://www.naval-history.net/WW2BritishLosses3Coastal.htm <nowiki>[naval-history.net]</nowiki> British vessels lost at sea in World War 2 - MGB, MTB, SGB, ML, etc] - originally published in ''British Vessels Lost at Sea, 1935-45'', His Majesty's Stationary Office, 1947<br />
* [http://www.mwadui.com/HongKong/Coastal-Forces-Hong-Kong.htm <nowiki>[mwadui.com]</nowiki> Royal Navy Coastal Forces - Hong Kong]<br />
* [http://www.coastal-forces.org.uk/history.html <nowiki>[Coastal Forces Heritage Trust]</nowiki> Coastal Forces of World War II - History]<br />
* [https://www.yalumba.co.uk/Framesets/British%20Power%20Boat%20Co.htm <nowiki>[yalumba.co.uk]</nowiki> British Power Boat Co Page 1]<br />
* [https://www.yalumba.co.uk/Framesets/British%20Power%20Boat%20Co%20-%20page%205,%20MTBs.html <nowiki>[yalumba.co.uk]</nowiki> British Power Boat Co Page 5]<br />
* [[wikipedia:Coastal_Forces_of_the_Royal_Navy|[Wikipedia] Coastal Forces of the Royal Navy]]<br />
<br />
{{Britain boats}}<br />
{{Britain premium ships}}</div>U27474208https://old-wiki.warthunder.com/index.php?title=MTB-1(1)&diff=107659MTB-1(1)2021-07-27T09:07:49Z<p>U27474208: Updated to 2.7; added penetration by shell and shell details</p>
<hr />
<div>{{About<br />
| about = British motor torpedo boat '''{{PAGENAME}}'''<br />
| usage = other versions<br />
| link = MTB-1 (Family)<br />
}}<br />
{{Specs-Card<br />
|code=uk_mtb_1series<br />
|images={{Specs-Card-Image|GarageImage_{{PAGENAME}}.jpg}}<br />
}}<br />
<br />
== Description ==<br />
<!-- ''In the first part of the description, cover the history of the ship's creation and military application. In the second part, tell the reader about using this ship in the game. Add a screenshot: if a beginner player has a hard time remembering vehicles by name, a picture will help them identify the ship in question.'' --><br />
The '''{{Specs|name}}''' is a rank {{Specs|rank}} British motor torpedo boat {{Battle-rating}}. It was introduced in [[Update 1.83 "Masters of the Sea"]] as part of the British fleet closed beta test. With the split of the naval tech trees in [[Update "New Power"]], {{PAGENAME}} was moved to the coastal fleet tech tree where it is now the reserve vehicle.<br />
<br />
Decently fast and manoeuvrable, MTB-1(1) is the reserve vehicle of the British coastal fleet tech tree. It carries a pair of torpedoes and sports a large number of guns, eight 7.72 mm Lewis 1916 machine guns in total. However, each machine gun individually has a poor damage output and a low effective range, so combined with her low survivability, extra caution is needed to fully utilize MTB-1(1).<br />
<br />
There is a premium version of this vehicle, {{Specs-Link|uk_mtb_2series}}, which differs in the gun mount placement and number of depth charges.<br />
<br />
== General info ==<br />
=== Survivability and armour ===<br />
{{Specs-Fleet-Armour}}<br />
<!-- ''Talk about the vehicle's armour. Note the most well-defended and most vulnerable zones, e.g. the ammo magazine. Evaluate the composition of components and assemblies responsible for movement and manoeuvrability. Evaluate the survivability of the primary and secondary armaments separately. Don't forget to mention the size of the crew, which plays an important role in fleet mechanics. Save tips on preserving survivability for the "Usage in battles" section. If necessary, use a graphical template to show the most well-protected or most vulnerable points in the armour.'' --><br />
<br />
[[File:{{PAGENAME}}_Internals.png|thumb|{{PAGENAME}} internals (starboard). Note the ammo storage between the bridge and the forward gun mount.]]<br />
<br />
MTB-1(1) has the following armour layout:<br />
<br />
* Hull: 24 mm, wood<br />
* Superstructure: 2 mm, steel<br />
<br />
Any gun in the game will easily be able to penetrate the hull and superstructure at any range.<br />
<br />
The hull is split into three sections. Starting from the bow and working towards the stern, the first section starts at the bow and ends after the ammunition storage; the second ends just behind the bridge; and the third ends at the stern. <br />
<br />
Any round with a large enough diameter and explosive mass can hull break MTB-1(1). In general, this is limited to HE rounds with a diameter greater than 4 inches (102 mm) with an explosive mass greater than 1.5 kg. At MTB-1(1)'s own battle rating, there is no gun capable of hull-breaking her.<br />
<br />
There is one ammunition storage that holds ammunition for both the fore and aft gun turrets. It is located directly behind the forward gun turret just above the waterline. Destroying it will instantly destroy the boat.<br />
<br />
MTB-1(1) has a crew complement of 11. With a stock crew, it is knocked out when 7 crew are lost; with an aced crew, this is increased to 8. <br />
<br />
While MTB-1(1)'s crew complement is about average when comparing vessels with the same battle rating, her overall survivability is rather poor when compared to everything in her battle rating range. The placement of the guns also forces MTB-1(1) to expose the rear hull sections to get all the guns on target, something not required with most other reserve vessels. <br />
<br />
=== Mobility ===<br />
{{Specs-Fleet-Mobility}}<br />
<!-- ''Write about the ship's mobility. Evaluate its power and manoeuvrability, rudder rerouting speed, stopping speed at full tilt, with its maximum forward and reverse speed.'' --><br />
<br />
{{NavalMobility<br />
|SpeedForwardStockAB = 63<br />
|SpeedBackStockAB = 32<br />
|TurnTimeStockAB = 18.64<br />
|TurnSpeedStockAB = 43<br />
<br />
|TurnTimeSpadedAB = 12.67<br />
|TurnSpeedSpadedAB = 40<br />
<br />
|SpeedForwardStockRB = 53<br />
|SpeedBackStockRB = 26<br />
|TurnTimeStockRB = 20.77<br />
|TurnSpeedStockRB = 40<br />
<br />
|TurnTimeSpadedRB = 17.44<br />
|TurnSpeedSpadedRB = 43<br />
}}<br />
<br />
While her top speed is on the slower side compared to other motor torpedo boats, MTB-1(1)'s manoeuvrability is actually rather good. With a tight turning circle and a decent enough top speed, the mobility is suitable enough for most situations, although the lower top speed really hurts her potential for flanking on certain maps.<br />
<br />
MTB-1(1) has a displacement of 22.4 tons. Because of her small size and relatively low displacement, MTB-1(1) can be an unstable firing platform in rough waters.<br />
<br />
=== Modifications and economy ===<br />
{{Specs-Economy}}<br />
<br />
As a reserve vehicle, the following modifications are unlocked for free: Rudder Replacement, Propeller Replacement, Engine Maintenance, Tool Set, Fire Protection System, New Pumps, and Primary Armament Targeting.<br />
<br />
The recommended modification research order is:<br />
# 7.7 mm API belt<br />
# Smokescreen<br />
# Artillery Support<br />
# Dry-Docking<br />
<br />
After that, research the rest of the modifications in whatever order you prefer.<br />
<br />
== Armament ==<br />
{{Specs-Fleet-Armaments}}<br />
=== Primary armament ===<br />
{{Specs-Fleet-Primary}}<br />
<!-- ''Provide information about the characteristics of the primary armament. Evaluate their efficacy in battle based on their reload speed, ballistics and the capacity of their shells. Add a link to the main article about the weapon: <code><nowiki>{{main|Weapon name (calibre)}}</nowiki></code>. Broadly describe the ammunition available for the primary armament, and provide recommendations on how to use it and which ammunition to choose.'' --><br />
{{main|Lewis 1916 (7.72 mm)}}<br />
<br />
The primary armament consists of eight 7.72 mm Lewis 1916 machine guns in two quadruple mounts, one on the bow and one on the stern. There are 3,880 rounds of ammunition available for each mount, 970 rounds per gun, for a total of 7,760 rounds. Stock, the mounts can traverse horizontally and vertically at a rate of 64°/s; with the "Primary Armament Targeting" modification installed, this is increased to 75°/s. Each gun has a magazine capacity of 97 rounds and a cyclic rate of fire of 551 rounds/min. With a stock crew, the guns can be reloaded in 18.2 seconds; with an aced crew, they can be reloaded in 14 seconds. The 7.72 mm Lewis 1916 machine gun has an absolute maximum range of about 1.7 km against surface targets.<br />
<br />
The 7.72 mm Lewis 1916 machine guns, like other low-calibre machine guns, each individually have very poor damage outputs. With their relatively large magazine size and eight of them in total, though, MTB-1(1) is able to destroy most opponents without needing to reload, assuming that most of the shots land. This, however, comes at the cost of an incredibly long reload, the longest of any reserve vessel and one of the longest of any coastal fleet vessel in general. Because of this, it's best to always fire off any remaining ammunition after engagements to begin reloading in safety and to ensure full magazines at the start of the next engagement.<br />
<br />
{{Notice|Turrets are named sequentially, clockwise, starting at the bow}}<br />
<br />
{| class="wikitable" style="text-align:center" width="50%"<br />
! colspan="4" | Primary armament guidance<br />
|-<br />
! colspan="2" rowspan="1" | No.1 Turret (fore)<br />
! colspan="2" rowspan="1" | No.2 Turret (aft)<br />
|-<br />
! Horizontal !! Vertical !! Horizontal !! Vertical<br />
|-<br />
| ±180° || -5°/+43° || ±160° || -5°/+43°<br />
|-<br />
|}<br />
<br />
The front gun mount is able to fire in all directions except in a ~34° arc directly behind it. Because of the depth charge racks, the aft gun mount is unable to target any close-range targets in a ~42° arc on each side facing forwards, even if the depth charge racks are empty. The rear gun mount also cannot fire in a ~30° arc directly behind either. Only the front gun mount is able to fully rotate 360°.<br />
<br />
There are three ammunition types available:<br />
<br />
* Universal: {{Annotation|AP|Armour-piercing}}{{-}}{{Annotation|T|Tracer}}{{-}}{{Annotation|AP|Armour-piercing}}{{-}}{{Annotation|T|Tracer}}<br />
<br />
* 7.7 mm AP belt: {{Annotation|AP|Armour-piercing}}{{-}}{{Annotation|AP|Armour-piercing}}{{-}}{{Annotation|AP|Armour-piercing}}{{-}}{{Annotation|T|Tracer}}<br />
<br />
* 7.7 mm API belt: {{Annotation|IT|Incendiary tracer}}{{-}}{{Annotation|IT|Incendiary tracer}}{{-}}{{Annotation|IT|Incendiary tracer}}{{-}}{{Annotation|AP|Armour-piercing}}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="7" | Penetration statistics (belt)<br />
|-<br />
! rowspan="2" data-sort-type="text" | Belt<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| Universal || 10 || 9 || 8 || 7 || 6 || 5<br />
|-<br />
| 7.7 mm AP belt || 10 || 9 || 8 || 7 || 6 || 5<br />
|-<br />
| 7.7 mm API belt || 10 || 9 || 7 || 6 || 5 || 5<br />
|-<br />
|}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="8" | Penetration statistics (shell)<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! rowspan="2" | Type of<br>warhead<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| AP || {{Annotation|AP|Armour-piercing}} || 10 || 9 || 8 || 7 || 6 || 5<br />
|-<br />
| T || {{Annotation|T|Tracer}} || 9 || 8 || 7 || 6 || 5 || 4<br />
|-<br />
| IT || {{Annotation|IT|Incendiary tracer}} || 10 || 9 || 7 || 6 || 5 || 5<br />
|-<br />
|}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="10" | Shell details<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! rowspan="2" | Type of<br>warhead<br />
! rowspan="2" | Velocity<br>(m/s)<br />
! rowspan="2" | Projectile<br>Mass (kg)<br />
! rowspan="2" | Fuse delay<br>(m)<br />
! rowspan="2" | Fuse sensitivity<br>(mm)<br />
! rowspan="2" | Explosive Mass<br>(TNT equivalent) (g)<br />
! colspan="3" | Ricochet<br />
|-<br />
! 0% !! 50% !! 100%<br />
|-<br />
| AP || {{Annotation|AP|Armour-piercing}} || 853 || 0.01 || N/A || N/A || N/A || 47° || 56° || 65°<br />
|-<br />
| T || {{Annotation|T|Tracer}} || 835 || 0.01 || N/A || N/A || N/A || 47° || 56° || 65°<br />
|-<br />
| IT || {{Annotation|IT|Incendiary tracer}} || 920 || 0.01 || N/A || N/A || N/A || 47° || 56° || 65°<br />
|-<br />
|}<br />
<br />
While the armour-piercing round and the the incendiary tracer round deal about the same amount of the damage, the standard tracer round deals incredibly little damage to both surface targets and aircraft. Because of this, the AP belt is a strict upgrade from the default belt. Compared to the AP rounds, the IT rounds also have a much higher muzzle velocity. Altogether, this makes the API belt the best overall, due both to its lack of standard tracer rounds and better balistic properties.<br />
<br />
=== Additional armament ===<br />
{{Specs-Fleet-Additional}}<br />
<!-- ''Describe the available additional armaments of the ship: depth charges, mines, torpedoes. Talk about their positions, available ammunition and launch features such as dead zones of torpedoes. If there is no additional armament, remove this section.'' --><br />
{{main|18 inch Mark XII (450 mm)|Mk.VII depth charge}}<br />
<br />
MTB-1(1) can be outfitted with the following:<br />
<br />
* Without load<br />
* 2 x Mk.XII torpedo<br />
* 4 x Mk.VII depth charge<br />
* 2 x Mk.XII torpedo, 4 x Mk.VII depth charge<br />
<br />
'''Torpedoes'''<br />
<br />
MTB-1(1) can carry two 18 inch Mark XII torpedoes. These are carried internally in the aft of the boat and are launched through the transom tail first, i.e. facing forwards.<br />
<br />
{| class="wikitable" style="text-align:center" width="100%"<br />
! colspan="9" | Torpedo characteristics<br />
|-<br />
! Torpedo Mode !! Mass (kg) !! Maximum speed in water (km/h) !! Travel distance (km) !! Depth stroke (m) !! Arming distance (m) !! Explosive type !! Explosive mass (kg) !! TNT equivalent (kg)<br />
|-<br />
| {{Annotation|No|'Torpedo Mode' modification uninstalled}} || 702 || 50 || 3.20 || 1 || 50 || TNT || 176 || 176<br />
|-<br />
| {{Annotation|Yes|'Torpedo Mode' modification installed}} || 702 || 74 || 1.37 || 1 || 50 || TNT || 176 || 176<br />
|}<br />
<br />
The 18-inch Mk.XII is fairly average in terms of maximum speed, though it has a rather short maximum range and small explosive mass compared to other torpedoes. Still, the range is good enough for coastal maps, and a hit with the Mk.XII torpedo is more than enough to destroy any boat. <br />
<br />
The Torpedo Mode modification is available as a rank IV modification. Installing it will give the following changes:<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="2" | Torpedo mode specification changes<br />
|-<br />
! Max distance (m)<br />
! Max speed (m/s)<br />
|-<br />
| -1829|| +7<br />
|-<br />
|}<br />
<br />
Once unlocked, it's best to always keep Torpedo Mode installed. The maximum speed of a torpedo is much more valuable in coastal battles than its maximum range. Coastal fleet maps are also small enough that the decreased range with Torpedo Mode installed isn't much of an issue. Note, though, that the Torpedo Mode modification on MTB-1(1) has the opposite effect compared to most other vessels. Typically, the maximum range is increased at the cost of speed.<br />
<br />
In RB, always set the depth stroke to the minimum 1 m setting. This is because many vessels that MTB-1(1) can face will not have a deep enough draught to fuse the torpedo at a depth stroke setting of 4 m. In AB, depth stroke is automatically set to the most optimal setting.<br />
<br />
When using torpedoes, be aware that unless they are already launched, the torpedoes be shot at and destroyed. Upon being destroyed, there is relatively high chance for them to detonate, instantly destroying the boat. To avoid this, fire the torpedoes early on in battle — as well as after any subsequent reloads in AB — or simply don't take them at all. Torpedoes are a situational weapon, so it's largely down to personal preference whether or not to take them.<br />
<br />
'''Depth Charges'''<br />
<br />
[[File:{{PAGENAME}}_DC_Order.png|thumb|Mk.VII depth charges numbered according to their drop order.]]<br />
<br />
The Mk.VII depth charges are carried behind the bridge in racks, two on each side. They are dropped one at a time in the following order:<br />
<br />
# Port, foremost<br />
# Starboard, foremost<br />
# Port, aftmost<br />
# Starboard, aftmost<br />
<br />
Before spawning, the detonation time delay can be set anywhere between 3 seconds and 10 seconds.<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="7" | Depth charge characteristics<br />
|-<br />
! Mass (kg)<br />
! Explosive type<br />
! Explosive mass (kg)<br />
! TNT equivalent (kg)<br />
! HE armour penetration (mm)<br />
! Armoured vehicle destruction radius (m)<br />
! Fragment dispersion radius (m)<br />
|-<br />
| 196 || TNT || 130 || 130 || 101 || 8 || 122 <br />
|}<br />
<br />
There is almost no practical reason to use depth charges on any naval vessel in the game. Although they usually result in a one-hit kill if used properly, they are extremely situational, requiring the player to close to point-blank ranges to even use them. In almost every case, anytime a depth charge could be used, the guns or torpedoes can be used instead to greater effect. In fact, depth charges tend to actually be a liability in battle, since they essentially act as exposed ammo racks before they're dropped. Like torpedoes, they can be shot at, and if destroyed, they have a chance to detonate, instantly destroying the boat.<br />
<br />
Despite this, some success can be had in dropping them either next to, or in front of, a large, slow target. If dropping them next to the target, remember the depth charge drop order, since it's most likely that only the depth charges dropped on the side closest to the enemy will deal any damage. If dropping in front of the target, rush in from the sides as quickly as possible and drop them all at once directly in front of the target. For both cases, set the depth charge time delay to the minimum 3 seconds, since any higher time delay will only allow the depth charge to sink further away from the target, giving them more time to move out of the way. Again, using depth charges is extremely situational, and they will only be a liability the vast majority of the time, so take them at your own discretion.<br />
<br />
== Usage in battles ==<br />
<!-- ''Describe the technique of using this ship, the characteristics of her use in a team and tips on strategy. Abstain from writing an entire guide – don't try to provide a single point of view, but give the reader food for thought. Talk about the most dangerous opponents for this vehicle and provide recommendations on fighting them. If necessary, note the specifics of playing with this vehicle in various modes (AB, RB, SB).'' --><br />
<br />
[[File:MTB-1_1_series_skin_"MTB-1_'01'".png|thumb|MTB-1(1) with the historical camouflage '''"MTB-1 '01'''', available on the [http://trade.gaijin.net Gaijin Marketplace].]]<br />
<br />
Like any other vessel armed only with low-calibre machine guns, MTB-1(1) is severely limited by her armament. The 7.72 mm Lewis 1916 machine guns have both a poor muzzle velocity and a low projectile mass, giving them a very low absolute maximum range of only about 1.7 km. Their effective range is even less at only about 1-1.25 km, since the poor ballistics of the guns makes it rather difficult to consistently hit moving targets at any further distance. Being able to consistently hit targets is especially important with MTB-1(1) as, although she carries a large number of guns, each individual machine gun has an incredibly low per-hit damage output, leaving the overall damage output less than that of her heavy machine gun or autocannon-armed counterparts. Because of this, along with the range limitation of the guns, MTB-1(1) is best played at close ranges, with engagement distances ideally starting at 1 km or less. At such short ranges, the poor ballistics of the guns aren't nearly as pronounced, making them much easier to aim.<br />
<br />
Make use of MTB-1(1)'s relatively fast top speed and terrain cover to either flank the enemy team or to rush into contested areas around capture points, but avoid long, open areas of the map wherever possible. In those areas, MTB-1(1) will most likely be completely outranged, giving giving the enemy free hits. Once in close range, try to avoid direct engagements with enemies, as MTB-1(1) will most likely lose. Instead, try to flank, supporting the team by picking off small targets distracted by teammates and calling artillery on larger enemies that the guns are are unable to damage.<br />
<br />
Although she can mostly handle one-on-one engagements, MTB-1(1) is particularly poor at dealing with multiple enemies at once. This is because of the low damage output and extremely long reload. At all times, be aware of the how much ammo are left in the guns. Getting caught during a reload will almost always lead to MTB-1(1)'s destruction, so always keep an escape route open, and use smoke to run away if necessary. In general, but especially for guns with long reloads, it's better to be proactive with the reloads. Before the magazines empty, run back to cover, then fire off any remaining ammunition in order to start reloading in safety. A good time to consider doing this with MTB-1(1) is when the magazines about half empty, or when it shows about 750 rounds left between all guns, since with any less ammo, it may be difficult to finish an engagement before needing to reload. However, do be aware that MTB-1(1) can, at most, only carry enough ammunition for 10 reloads. This doesn't tend to be much of an issue in practice because MTB-1(1) doesn't tend to survive long enough for it to become an issue, but it is something to keep in mind.<br />
<br />
As for torpedoes, either launch them down choke points or prioritize larger, slower targets such as sub-chasers that the guns are ineffective against. If targeting a specific enemy, try to launch them as close to the target as possible to allow them the least amount of time to dodge. However, try to only do this on distracted targets and when other enemies aren't around, since exposing MTB-1(1) to enemy fire just to launched the torpedoes is generally not worth the risk. If the situation doesn't present itself, it's better to just mark the target on the map for your teammates, call artillery, then disengage. As mentioned in the previous section, torpedoes are a situational weapon, and taking them at all negatively impacts survivability, so only take them if you prefer the extra utility at the cost of survivability.<br />
<br />
=== Pros and cons ===<br />
<!-- ''Summarise and briefly evaluate the vehicle in terms of its characteristics and combat effectiveness. Mark its pros and cons in the bulleted list. Try not to use more than 6 points for each of the characteristics. Avoid using categorical definitions such as "bad", "good" and the like - use substitutions with softer forms such as "inadequate" and "effective".'' --><br />
<br />
'''Pros:'''<br />
<br />
* Relatively large magazine capacity: can destroy most opponents without needing to reload<br />
* Good manoeuvrability<br />
<br />
'''Cons:'''<br />
<br />
* Only armed with low-calibre guns: very poor damage output and limited effective range<br />
* Very long reload: longest of any reserve and one of the longest among coastal vessels<br />
* Poor survivability<br />
* Relatively weak torpedoes: low explosive mass compared to other similar torpedoes<br />
<br />
== History ==<br />
<!-- ''Describe the history of the creation and combat usage of the ship in more detail than in the introduction. If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the ship and adding a block "/History" (example: <nowiki>https://wiki.warthunder.com/(Ship-name)/History</nowiki>) and add a link to it here using the <code>main</code> template. Be sure to reference text and sources by using <code><nowiki><ref></ref></nowiki></code>, as well as adding them at the end of the article with <code><nowiki><references /></nowiki></code>. This section may also include the ship's dev blog entry (if applicable) and the in-game encyclopedia description (under <code><nowiki>=== In-game description ===</nowiki></code>, also if applicable).'' --><br />
<br />
Though the Royal Navy had operated a small number of coastal boats during the first World War, by the 1930s, these flotillas had long been dissolved and the Royal Navy had yet to construct any more. The first two coastal boats since WWI were ordered on 27th September 1935 by the Royal Navy, the order being given to British Power Boat Company based at Hythe, a town near Southampton. In addition to this initial order, four more were ordered on 19th October 1935. These six boats were completed by November 1936, and, with their commissioning on 27th April 1937, the Royal Navy Coastal Forces was founded. Following this, three more boats were ordered on 7th December 1936 and nine more on 11th January 1938. In total, 18 boats were ordered, all of them being completed by 1939.<br />
<br />
These boats had a standard displacement of 18 tons and had a length of 60 ft. 4 in., a width of 13 ft. 4 in., and a draught of 2 ft. 10 in. at standard displacement. They were powered by three Napier Sea Lion petrol engines, each driving a single shaft, and could reach speeds of around 30-35 knots. Each boat could carry two 18 inch torpedoes which were stored internally on rails above the engines. On the stern were two more rails that could be folded down to the transom, extending the torpedoes' rails outside of the boat. The torpedoes fired facing forwards down the rails, after which the boat that fired them would have to turn to evade their path. In addition to torpedoes, the boats were also armed with a number of depth charges and, depending on the exact boat, up to eight Lewis guns.<br />
<br />
MTB 1, the first of the boats, was redesignated MTB 7 in 1937. Similarly, MTB 7 was redesignated MTB 1 in the same year. In 1938, the former MTB 1, now MTB 7, was redesignated MTB 13. At the same time, MTB 13 was redesignated MTB 7. Finally, later in 1938, the former MTB 1, now MTB 13, was again redesignated MTB 19. Thus, by the start of WWII, the boats were numbered MTBs 1-12 and 14-19 and formed two MTB flotillas: 1st MTB Flotilla, consisting of MTBs 1-6 and 14-19; and 2nd MTB Flotilla, consisting of MTBs 7-12.<br />
<br />
The 1st MTB Flotilla was sent to the Mediterranean at the start of WWII and was based at HMS Vulcan in Malta. They were soon recalled back to England in December 1939 to be based at HMS Beehive, Felixstowe, though MTB 19 was sent to HMS Vernon, Portsmouth. Along the way back, due to bad weather, MTB 6 had to be foundered. After they arrived, the remaining boats continued to operate in the English Channel until they were either lost or replaced. Those lost were MTBs 15, 16, and 17, all of which were mined in 1940.<br />
<br />
The 2nd MTB Flotilla was commissioned in 1938 and assigned to HMS Tamar, Hong Kong. They were all lost during the Battle of Hong Kong in December 1941. MTB 8 was bombed by IJN aircraft and was damaged beyond repair, and MTB 12 was sunk in action by IJN landing craft. The remainder of the 2nd MTB Flotilla was scuttled on 26th December 1941.<br />
<br />
== Media ==<br />
<!-- ''Excellent additions to the article would be video guides, screenshots from the game, and photos.'' --><br />
<br />
;'''Skins'''<br />
<br />
* [https://live.warthunder.com/feed/camouflages/?vehicleCountry=britain&vehicleType=ship&vehicleClass=torpedo_boat&vehicle=uk_mtb_1series Skins and camouflages for the {{PAGENAME}} from live.warthunder.com.]<br />
<br />
;'''Images'''<br />
<gallery mode="packed" heights="150"><br />
Mtb-1 1 series.png||MTB-1(1) in the hangar<br />
MTB-1 damaged-1.jpg||MTB-1(1) defends a capture point, despite numerous damages.<br />
</gallery><br />
<br />
== See also ==<br />
<!-- ''Links to articles on the War Thunder Wiki that you think will be useful for the reader, for example:''<br />
* ''reference to the series of the ship;''<br />
* ''links to approximate analogues of other nations and research trees.'' --><br />
;Vehicles of the same class<br />
* {{Specs-Link|uk_mtb_2series}}<br />
* [[MTB-1 (Family)]]<br />
<br />
;Similar vehicles<br />
* {{Specs-Link|uk_fairmile_a_ml100}}<br />
* {{Specs-Link|uk_mtb_vosper_1series}}<br />
<br />
== External links ==<br />
<!-- ''Paste links to sources and external resources, such as:''<br />
* ''topic on the official game forum;''<br />
* ''other literature.'' --><br />
<br />
* [https://www.unithistories.com/units_british/RN_MTBs.html#MTB_Boats <nowiki>[Unit Histories]</nowiki> Royal Navy Coastal Forces 1940-1945]<br />
* [http://www.naval-history.net/WW2BritishLosses3Coastal.htm <nowiki>[naval-history.net]</nowiki> British vessels lost at sea in World War 2 - MGB, MTB, SGB, ML, etc] - originally published in ''British Vessels Lost at Sea, 1935-45'', His Majesty's Stationary Office, 1947<br />
* [http://www.mwadui.com/HongKong/Coastal-Forces-Hong-Kong.htm <nowiki>[mwadui.com]</nowiki> Royal Navy Coastal Forces - Hong Kong]<br />
* [http://www.coastal-forces.org.uk/history.html <nowiki>[Coastal Forces Heritage Trust]</nowiki> Coastal Forces of World War II - History]<br />
* [https://www.yalumba.co.uk/Framesets/British%20Power%20Boat%20Co.htm <nowiki>[yalumba.co.uk]</nowiki> British Power Boat Co Page 1]<br />
* [https://www.yalumba.co.uk/Framesets/British%20Power%20Boat%20Co%20-%20page%205,%20MTBs.html <nowiki>[yalumba.co.uk]</nowiki> British Power Boat Co Page 5]<br />
* [[wikipedia:Coastal_Forces_of_the_Royal_Navy|[Wikipedia] Coastal Forces of the Royal Navy]]<br />
<br />
{{Britain boats}}</div>U27474208https://old-wiki.warthunder.com/index.php?title=HMS_Liscomb&diff=105898HMS Liscomb2021-06-17T12:20:46Z<p>U27474208: /* History */ wording</p>
<hr />
<div>{{Specs-Card<br />
|code=uk_isles_class_trawler<br />
|images={{Specs-Card-Image|GarageImage_{{PAGENAME}}.jpg}}<br />
}}<br />
<br />
== Description ==<br />
<!-- ''In the first part of the description, cover the history of the ship's creation and military application. In the second part, tell the reader about using this ship in the game. Add a screenshot: if a beginner player has a hard time remembering vehicles by name, a picture will help them identify the ship in question.'' --><br />
The '''{{Specs|name}}''' is a rank {{Specs|rank}} British sub-chaser {{Battle-rating}}. It was introduced in [[Update 1.83 "Masters of the Sea"]] as part of the British fleet Closed Beta Test.<br />
<br />
== General info ==<br />
=== Survivability and armour ===<br />
{{Specs-Fleet-Armour}}<br />
<!-- ''Talk about the vehicle's armour. Note the most well-defended and most vulnerable zones, e.g. the ammo magazine. Evaluate the composition of components and assemblies responsible for movement and manoeuvrability. Evaluate the survivability of the primary and secondary armaments separately. Don't forget to mention the size of the crew, which plays an important role in fleet mechanics. Save tips on preserving survivability for the "Usage in battles" section. If necessary, use a graphical template to show the most well-protected or most vulnerable points in the armour.'' --><br />
<br />
[[File:X-Ray profile Isles Class T-285.png|thumb|Isles class (T-285) internals (starboard side). Note the large ammo racks below the forward gun and in the bow.]]<br />
<br />
Isles class (T-285) has the following armour layout:<br />
<br />
* [[20 mm/70 Oerlikon Mk.II (20 mm)|20 mm/70 Oerlikon Mk.II)]] gunshields: 12.7 mm, hardened armour<br />
* Hull: 6 mm, steel<br />
* Superstructure: 4 mm, steel<br />
<br />
Any gun in the game is able to penetrate anywhere on the boat, including the gunshields, at practically any range.<br />
<br />
There is currently no gun in the game that can hull-break Isles class (T-285).<br />
<br />
Isles class (T-285)'s hull is split into four compartments. The first compartment starts at the bow and ends where the raised forecastle ends, just in front of the forward 4 in QF Mark V cannon. The second starts the end of the forecastle and ends in front of the bridge. The third starts at the bridge and ends in front of the aft 20 mm/70 Oerlikon Mk.II mount. The fourth starts at the aft gun mount and ends at the stern. Isles class (T-285) is notable for being one of the only rank I boats to have the "Shrapnel Protection" modification, though this doesn't affect survivability much. With a crew complement of 40, overall survivability is high.<br />
<br />
Isles class (T-285) has two types of ammo racks: one ammunition storage and one shells room. The ammunition storage is located below the forward 4 in QF Mark V cannon; it is never emptied. The shells room is split into two locations (though damaging one will also damage the other): one below the ammunition storage and one in the bow, both above the waterline; it is emptied when there is only one round of ammunition remaining for the forward 4 in QF Mark V cannon. Destroying either the ammunition storage or the shells room does not destroy the boat.<br />
<br />
=== Mobility ===<br />
{{Specs-Fleet-Mobility}}<br />
<!-- ''Write about the ship's mobility. Evaluate its power and manoeuvrability, rudder rerouting speed, stopping speed at full tilt, with its maximum forward and reverse speed.'' --><br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="6" | '''Mobility Characteristics'''<br />
|-<br />
! rowspan="2" | Game Mode<br />
! rowspan="2" | Upgrade Status<br />
! colspan="2" | Maximum Speed (km/h)<br />
! rowspan="2" | {{Annotation|Turn Time (s)|Time needed to complete a 360° turn at maximum speed}}<br />
! rowspan="2" | {{Annotation|Turn Radius (m)|At maximum speed}}<br />
|-<br />
! rowspan="1" | Forward<br />
! rowspan="1" | Reverse<br />
|-<br />
| rowspan="2" | {{Annotation|AB|Arcade Battles}}<br />
| {{Annotation|Stock|All modifications removed}} || 25 || 11 || ~127.36 || ~95.72<br />
|-<br />
| {{Annotation|Upgraded|All modifications installed}} || 34 || 15 || ~67.95 || ~60.08<br />
|-<br />
| rowspan="2" | {{Annotation|RB|Realistic Battles}}/{{Annotation|SB|Simulator Battles}}<br />
| {{Annotation|Stock|All modifications removed}} || 19 || 8 || ~187.63 || ~107.84<br />
|-<br />
| {{Annotation|Upgraded|All modifications installed}} || 22 || 10 || ~127.78 || ~90.39<br />
|-<br />
|}<br />
<br />
Isles class (T-285) has a displacement of 554 tons.<br />
<br />
=== Modifications and economy ===<br />
{{Specs-Economy}}<br />
<br />
== Armament ==<br />
{{Specs-Fleet-Armaments}}<br />
=== Primary armament ===<br />
{{Specs-Fleet-Primary}}<br />
<!-- ''Provide information about the characteristics of the primary armament. Evaluate their efficacy in battle based on their reload speed, ballistics and the capacity of their shells. Add a link to the main article about the weapon: <code><nowiki>{{main|Weapon name (calibre)}}</nowiki></code>. Broadly describe the ammunition available for the primary armament, and provide recommendations on how to use it and which ammunition to choose.'' --><br />
{{main|4 in QF Mark V (102 mm)}}<br />
<br />
For her primary armament, Isles class (T-285) has one 4 in QF Mark V cannon in a single mount forward. It has 150 rounds of ammunition available for it. Stock, the mount can traverse horizontally at a rate of 10°/s and vertically at a rate of 6.8°/s; with the "Primary Armament Targeting" modification installed, it can traverse horizontally at a rate of 12°/s and vertically at a rate of 8°/s. The gun is single-shot and has a nominal rate of fire of 12 rounds/min. With a stock crew, it can be reloaded in 6.5 seconds; with an aced crew, it can be reloaded in 5 seconds.<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="2" | '''Guidance for the Primary Gun Turret'''<br />
|-<br />
! Horizontal !! Vertical<br />
|-<br />
| ±180° || -7°/+80°<br />
|-<br />
|}<br />
<br />
There are three choices of ammunition available:<br />
<br />
* 4 inch HE<br />
* 4 inch SAP<br />
* 102 mm shrapnel<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="8" | '''Penetration Statistics'''<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! rowspan="2" | Type<br />
! colspan="6" | '''Penetration @ 0° Angle of Attack (mm)'''<br />
|-<br />
! 1000 m !! 2,500 !! 5,000 m !! 7,500 m !! 10,000 m !! 15,000 m<br />
|-<br />
| 4 inch HE || {{Annotation|HE|High-explosive}} || 11 || 11 || 11 || 11 || 11 || 11<br />
|-<br />
| 4 inch SAP || {{Annotation|SAP|Semi-armour piercing}} || 90 || 75 || 60 || 52 || 46 || 40<br />
|-<br />
| 102 mm shrapnel || Shrapnel || 5 || 5 || 5 || 5 || 5 || 5<br />
|-<br />
|}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="12" | '''Shell Details'''<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! rowspan="2" | Type<br />
! rowspan="2" | Projectile Mass (kg)<br />
! rowspan="2" | Velocity (m/s)<br />
! rowspan="2" | Explosive Type<br />
! rowspan="2" | Explosive Mass (kg)<br />
! rowspan="2" | TNT Equivalent (kg)<br />
! rowspan="2" | Fuse Delay (m)<br />
! rowspan="2" | Fuse Sensitivity (mm)<br />
! colspan="3" | Ricochet<br />
|-<br />
! 0% !! 50% !! 100%<br />
|-<br />
| 4 inch HE || {{Annotation|HE|High-explosive}} || 14.06 || 805 || TNT || 0.721 || 0.721 || N/A || 0.1 || 79° || 80° || 81°<br />
|-<br />
| 4 inch SAP || {{Annotation|SAP|Semi-armour piercing}} || 15.2 || 805 || Amatol || 0.520 || 0.520 || 3 || 3 || 47° || 60° || 65°<br />
|-<br />
| 102 mm shrapnel || Shrapnel || 17.7 || 805 || TNT || 0.218 || 0.218 || N/A || 0.1 || 62° || 69° || 73°<br />
|-<br />
|}<br />
<br />
=== Secondary armament ===<br />
{{Specs-Fleet-Secondary}}<br />
<!-- ''Some ships are fitted with weapons of various calibres. Secondary armaments are defined as weapons chosen with the control <code>Select secondary weapon</code>. Evaluate the secondary armaments and give advice on how to use them. Describe the ammunition available for the secondary armament. Provide recommendations on how to use them and which ammunition to choose. Remember that any anti-air armament, even heavy calibre weapons, belong in the next section. If there is no secondary armament, remove this section.'' --><br />
{{main|20 mm/70 Oerlikon Mk.II (20 mm)}}<br />
<br />
For her secondary armament, Isles class (T-285) has three 20 mm/70 Oerlikon Mk.II cannons in three single mounts, one aft and two on either side in front of the bridge. For each mount, there are 1,200 rounds of ammunition available for a total of 3,600 rounds. Stock, each mount can traverse horizontally at a rate of 64°/s and vertically at a rate of 64°/s; with the "Auxiliary Armament Targeting" modification installed, they can traverse horizontally at a rate of 75°/s and vertically at a rate of 75°/s. Each gun has a belt capacity of 60 rounds and a rate of fire of 450 rounds/min. With a stock crew, they can be reloaded in 2.9 seconds; with an aced crew, they can be reloaded in 2 seconds. Their maximum range against surface targets is roughly 2.1 km.<br />
<br />
{{Notice|Turrets are named sequentially, clockwise, starting at the bow}}<br />
<br />
{| class="wikitable" style="text-align:center" width="75%"<br />
! colspan="8" | '''Guidance for the Secondary Gun Turrets'''<br />
|-<br />
! colspan="2" rowspan="1" | No.1 Turret<br />
! colspan="2" rowspan="1" | No.2 Turret<br />
! colspan="2" rowspan="1" | No.3 Turret<br />
|-<br />
! Horizontal !! Vertical !! Horizontal !! Vertical !! Horizontal !! Vertical<br />
|-<br />
| ±180° || -5°/+70° || ±180° || -5°/+70° || ±180° || -5°/+70°<br />
|-<br />
|}<br />
<br />
There are three choices of ammunition available:<br />
<br />
* Universal: {{Annotation|HEF-T|High-explosive fragmentation tracer}}/{{Annotation|HEF-I|High-explosive fragmentation incendiary}}/{{Annotation|AP-T|Armour-piercing tracer}}<br />
<br />
* 20 mm HE: {{Annotation|HEF-T|High-explosive fragmentation tracer}}/{{Annotation|HEF-I|High-explosive fragmentation incendiary}}/{{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|HEF-I|High-explosive fragmentation incendiary}}<br />
<br />
* 20 mm AP: {{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|HEF-I|High-explosive fragmentation incendiary}}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="7" | '''Penetration Statistics'''<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! colspan="6" | '''Penetration @ 0° Angle of Attack (mm)'''<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| Universal || 35 || 33 || 26 || 21 || 18 || 15<br />
|-<br />
| 20 mm HE || 35 || 33 || 26 || 21 || 18 || 15<br />
|-<br />
| 20 mm AP || 35 || 33 || 26 || 21 || 18 || 15<br />
|-<br />
|}<br />
<br />
=== Anti-aircraft armament ===<br />
{{Specs-Fleet-AA}}<br />
<!-- ''An important part of the ship's armament responsible for air defence. Anti-aircraft armament is defined by the weapon chosen with the control <code>Select anti-aircraft weapons</code>. Talk about the ship's anti-air cannons and machine guns, the number of guns and their positions, their effective range, and about their overall effectiveness – including against surface targets. If there are no anti-aircraft armaments, remove this section.'' --><br />
{{main|Lewis 1916 (7.72 mm)}}<br />
<br />
For her anti-aircraft armament, Isles class (T-285) has four 7.72 mm Lewis 1916 machineguns in two twin mounts, one on either side of the bridge. For each mount, there are 3,880 rounds of ammunition available, 1,940 rounds per gun, for a total of 7,760 rounds. There are no stated horizontal or vertical traverse rates given in-game, though the mounts handle very similarly to, if not exactly the same as, other twin and quadruple 7.72 mm Lewis 1916 machinegun mounts which, when stock, can all traverse horizontally at a rate of 64°/s and vertically at a rate of 64°/s; with the "Anti-Air Armament Targeting" modification installed, traverse horizontally at a rate of 75°/s and vertically at a rate of 75°/s. Each gun has a magazine capacity of 97 rounds and has a rate of fire of 550 rounds/min. With a stock crew, the guns can be reloaded in 10.4 seconds; with an aced crew, they can be reloaded in 8 seconds. Their maximum range against surface targets is roughly 1.6 km.<br />
<br />
{{Notice|Turrets are named sequentially, clockwise, starting at the bow}}<br />
<br />
{| class="wikitable" style="text-align:center" width="50%"<br />
! colspan="8" | '''Guidance for the Anti-Aircraft Gun Turrets'''<br />
|-<br />
! colspan="2" rowspan="1" | No.1 Turret<br />
! colspan="2" rowspan="1" | No.2 Turret<br />
|-<br />
! Horizontal !! Vertical !! Horizontal !! Vertical<br />
|-<br />
| ±55° || -5°/+50° || ±55° || -5°/+50°<br />
|-<br />
|}<br />
<br />
No ammunition choices are available for this gun. Although not directly stated in-game, the guns fire one tracer round every other round, so they most likely use the standard Default ammunition choice of the 7.72 mm Lewis 1916 machinegun which has the following composition and penetration statistics:<br />
<br />
* Default: {{Annotation|AP|Armour-piercing}}/{{Annotation|T|Tracer}}/{{Annotation|AP|Armour-piercing}}/{{Annotation|T|Tracer}}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="7" | '''Penetration Statistics'''<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! colspan="6" | '''Penetration @ 0° Angle of Attack (mm)'''<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| Default || 10 || 9 || 8 || 7 || 6 || 5<br />
|-<br />
|}<br />
<br />
=== Additional armament ===<br />
{{Specs-Fleet-Additional}}<br />
<!-- ''Describe the available additional armaments of the ship: depth charges, mines, torpedoes. Talk about their positions, available ammunition and launch features such as dead zones of torpedoes. If there is no additional armament, remove this section.'' --><br />
{{main|Mk.VII depth charge}}<br />
<br />
Isles class (T-285) can carry up to 20 Mk.VII depth charges. These are split into two chutes on the stern carrying 10 depth charges each. They drop one at a time in this order: alternating port and starboard starting on the port side.<br />
<br />
Before spawning, the detonation time delay for both types of depth charges can be set anywhere between 3 seconds and 10 seconds.<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="4" | '''Depth Charge Characteristics'''<br />
|-<br />
! Mass (kg)<br />
! Explosive Type<br />
! Explosive Mass (kg)<br />
! TNT Equivalent (kg)<br />
|-<br />
| 196 || TNT || 130 || 130<br />
|}<br />
<br />
== Usage in battles ==<br />
<!-- ''Describe the technique of using this ship, the characteristics of her use in a team and tips on strategy. Abstain from writing an entire guide – don't try to provide a single point of view, but give the reader food for thought. Talk about the most dangerous opponents for this vehicle and provide recommendations on fighting them. If necessary, note the specifics of playing with this vehicle in various modes (AB, RB, SB).'' --><br />
<br />
[[File:Isles_class_(T-285)_skin_"Isles_class_'Hornet'".png|thumb|Isles class (T-285) with the fictional camouflage ''Isles class 'Hornet''', available on the [http://trade.gaijin.net Gaijin Marketplace].]]<br />
<br />
Lacking in speed, Isles class (T-285) is best used as a support vessel. Stay at the back of the rest of the team and use the 4 in QF Mark V cannon to take out any tough enemies the team may have trouble dealing with. Priority targets include other large vessels such as sub-chasers, German barges, and Soviet armoured guns boats, since, in one way or another, all of these possess high survivability and powerful armaments, making them difficult for smaller boats to effectively engage. In particular, prioritize Soviet armoured gun boats. These are some of the only boats in rank I and rank II with any substantial armour, and the 4 in QF Mark V cannon, with its SAP round, is one of the only guns that can reliably penetrate them when angled. If possible, try to aim for their ammunition storages located below their guns at the waterline. This will almost always result in a one-shot kill. Otherwise, target the heavily-armoured "citadel" at the centre of the boats as, chances are, the less-armoured bow and stern compartments may already be destroyed. For larger vessels such as subchasers, use the shrapnel round; for all other targets, the HE round will suffice.<br />
<br />
Despite being one of the largest guns at its tier, the 4 in QF Mark V cannon cannot hull-break, requiring multiple hits to take out even the smallest boats. Because of the cannon's relatively poor accuracy and slow traverse rates, reliably landing shots on small, fast boats may be difficult. For such targets, switch to the secondary 20 mm/70 Oerlikon Mk.II cannons. Because of the way the cannons are arranged, only two of them can ever be aimed at a target at once. Nevertheless, the two cannons actually fire more TNT per minute when using the 20 mm HE belt than the 4 in QF Mark V cannon can with its HE round, so they will usually be enough to handle most boats. However, the 20 mm cannons may struggle against certain armoured targets, so always be prepared to switch back to the 4-inch cannon.<br />
<br />
Primarily, Isles class (T-285) should be played away from the fray, sniping dangerous targets from afar. Try to always keep the hull pointed directly towards the enemy, i.e. show as little of the sides as possible. Due to Isles class (T-285)'s massive bulk, the middle and rear hull compartments will become virtually immune from fire. While there are ammunition storages located in the bow, it appears as though they never detonate when destroyed, so taking damage with the bow is a very viable tactic. This doesn't make Isles class (T-285) completely invincible though, since some crew can still be chipped away by destroying the bridge and gun mounts, but it does substantially increase survivability. Isles class (T-285) is extremely vulnerable to artillery strikes and, to a lesser extent, torpedoes. Always try to stay on the move and occasionally change direction to through off their aim.<br />
<br />
Another way to play Isles class (T-285) is to take it into close-range engagements around capture points, using the 20 mm/70 Oerlikon Mk.II cannons and levering Isles class (T-285)'s high survivability to take out smaller boats before they can deal any significant damage back. When playing like this, remember that none of the 20 mm cannons can fire in a ~45° arc directly forwards, and only one of them can fire in a ~70° arc directly aft, so always keep enemies to the sides to maximize firepower. Additionally, the 20 mm cannons cannot depress far enough to target anything within a ~60 m radius around the boat, so don't let enemies get too close and avoid staying near islands and other forms of cover for too long. Isles class (T-285) is also more susceptible to artillery and torpedoes at close range, so as with playing at long-range, always keep moving. Another thing to note is that while controlling the 20 mm cannons, there will be no effective AI-controlled anti-aircraft weapons. Isles class (T-285) makes for an easy target for aircraft due to her large size and low speed, so periodically check the skies and, if you're not confident with your aim, switch back to the 4-inch cannon to give control of the 20 mm cannons to the AI gunners. Lastly, be aware that playing at close-range is a much more viable tactic in a downtier. In an uptier, the Isles class (T-285) will face opponents with much more powerful armaments, negating her survivability advantage.<br />
<br />
;Ammunition Choices<br />
<br />
[[File:Isles_class_(T-285)_skin_"Isles_class,_HMS_Alisa_Craig".png|thumb|Isles class (T-285) with the semihistorical camouflage ''Isles class, HMS Alisa Craig'', available on the [http://trade.gaijin.net Gaijin Marketplace].]]<br />
<br />
For the 4 in QF Mark V cannon, the best ammunition choice, in general, is the 4 inch HE round. The 4 inch HE round has the most high-explosive mass among the three rounds that the 4 in QF Mark V cannon has access to, making it the best general-purpose round overall.<br />
<br />
The 4 inch SAP rounds should be reserved only for Soviet armoured gun boats. Any other targets will simply not have any sort of armour, and the round will generally over-penetrate the hull without triggering its fuze, dealing minimal damage to the target. Identify the enemy first and only use the SAP round if the other rounds are ineffective.<br />
<br />
The 102 mm shrapnel should be used on large targets without armour such as sub-chasers. Against such targets, the HE round will most likely fail to destroy the hull compartments in a single hit, and internal components will rarely be damaged. In contrast, the shrapnel round can consistently destroy their hull compartments, and it creates a cone of spalling upon penetration that can travel much further into the hull. Keep in mind, though, that the shrapnel round will almost always be stopped by any kind of armour and that it only has about 30% of the explosive mass of the HE round, making it less versatile against smaller boats unless specifically aiming for ammunition storages. The shrapnel round also has a timed fuze that could possibly be used against aircraft, though with the 4 in QF Mark V cannon's slow traverse and elevation rates as well as its slow rate of fire, it's better to leave anti-aircraft defence to the other weaponry.<br />
<br />
For the 20 mm/70 Oerlikon Mk.II cannons, the best ammunition choice is the 20 mm HE because it has the highest ratio of HE rounds to AP rounds, making it the most effective against both aircraft and surface targets. The 20 mm HE belt should be the main ammunition choice, though a small amount of the 20 mm AP belt should also be taken in case any armoured targets get around to the sides of the boat. Aside from ammunition costs, there is no reason to use the Universal belt once the other options have been researched.<br />
<br />
;Depth Charges<br />
<br />
Being anti-submarine weapons and with the present lack of submarines in the game, there is no practical reason to use depth charges. There is especially no reason to use them on Isles class (T-285) because the depth charges drop off of the stern. Because of Isles class (T-285)'s very slow top speed and bad manoeuvrability, there will almost never be an opportunity to use them. This is doubly so, since, if they are not dropped, depth charges act like exposed and unarmoured ammo racks.<br />
<br />
=== Pros and cons ===<br />
<!-- ''Summarise and briefly evaluate the vehicle in terms of its characteristics and combat effectiveness. Mark its pros and cons in the bulleted list. Try not to use more than 6 points for each of the characteristics. Avoid using categorical definitions such as "bad", "good" and the like - use substitutions with softer forms such as "inadequate" and "effective".'' --><br />
<br />
'''Pros:'''<br />
<br />
* High survivability<br />
* Cannot be hull-broken by any guns in the game<br />
* Primary armament: excellent SAP round<br />
* Secondary armament: great damage output; large magazine capacity<br />
* Stable firing platform<br />
<br />
'''Cons:'''<br />
<br />
* Very low top speed and very bad manoeuvrability<br />
* Extremely susceptible to torpedoes, artillery, and aircraft attacks<br />
* Relatively weak armament<br />
* Primary armament: poor traverse rates; poor accuracy<br />
* Secondary armament: only 2/3 guns can be brought to bear at once<br />
* Anti-aircraft armament: very low damage output; long reloads; bad firing arcs<br />
* No access to artillery support<br />
<br />
== History ==<br />
<!--''Describe the history of the creation and combat usage of the ship in more detail than in the introduction. If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the ship and adding a block "/History" (example: <nowiki>https://wiki.warthunder.com/(Ship-name)/History</nowiki>) and add a link to it here using the <code>main</code> template. Be sure to reference text and sources by using <code><nowiki><ref></ref></nowiki></code>, as well as adding them at the end of the article with <code><nowiki><references /></nowiki></code>. This section may also include the ship's dev blog entry (if applicable) and the in-game encyclopedia description (under <code><nowiki>=== In-game description ===</nowiki></code>, also if applicable).''--><br />
<br />
The Isles-class, also known as the Western Isles-class, was a class of 197 Royal Navy naval trawlers built between 1939 and 1945. The Isles-class actually comprised of four separate classes of trawlers: the Tree-class, the Dance-class, the Shakespearean-class, and the Isles-class. While the four classes of trawlers are separate, their overall designs were very similar. All four had a length overall of 164 ft, a beam of 27 ft 8 in, and a deep load displacement of 11 ft 1 in. They were all powered by a single shaft vertical triple expansion boiler producing 850 bhp, giving them a top speed of 12.25 knots. Royal Navy trawlers used for minesweeping and convoy escort — which includes the Tree-class, the Shakespearean-class, and the Isles-class — were armed with the standard armament consisting of a single 3-inch QF 12-pdr 12 cwt cannon on the bow, as well as several Oerlikon 20 mm cannons and 30 depth charges. Those used for anti-submarine operations — in this case, only the Dance-class — were additionally given ASDIC equipment and a 4-inch/45 BL Mk IX cannon in place of the 12-pdr cannon.<br />
<br />
The Tree-class was the first attempt at a purpose-built naval trawler by Britain during the Second World War. Based on the design of the previous Basset-class trawler of 1935, 20 Tree-class trawlers were ordered in 1939 at the start of the war, with 19 completed between 1939 and 1940 and one completed in 1942. Of the 20 built, 6 were lost during the war. Of the surviving vessels, all but two were sold off in 1946, with the remaining two sold off in 1948.<br />
<br />
Following the Tree-class were two groups of trawlers, the Dance-class and the Shakespearean-class, ordered together later in 1939. Twenty Dance-class and 12 Shakespearean-class trawlers were ordered, with all 32 completed between 1940 and 1941. The Dance-class was similar to the Tree-class but was built for anti-submarine duty and given a 4-inch gun instead of the 12-pdr, while the Shakespearean-class was nearly identical to the Tree-class. One Dance-class and six Shakespearean-class trawlers were lost during the war. Aside from four Dance-class trawlers along with one Shakespearean-class trawler sent to Italy in 1946, as well as one Shakespearean-class trawler sent to Kenya also in 1946, all survivors were sold off in 1946 except for two Dance-class trawlers which were sold in 1947.<br />
<br />
Last is the Isles-class consisting of 145 trawlers all built through to the end of the war. The Isles-class was again very similar in design to the previous trawlers, and because the Isles-class was much more numerous than the others, the other classes are often considered subclasses of it. Twenty-three Isles-class trawlers were lost during the war with most survivors sold off in 1946. Several Isles-class trawlers were sent to the Royal Canadian Navy and the Royal New Zealand Navy as well as to the Italian Navy, the Portuguese Navy, and the German Navy. A small number of Isles-class trawlers remained in service with the Royal Navy as late as the 1960s.<br />
<br />
HMS Liscomb was one of 16 Isles-class trawlers built for the Royal Navy by Canada. She was ordered 8th August 1941 and was laid down on 1st July 1941 at Kingston Shipyards in Ontario. Liscomb was launched on 23rd March 1942 and commissioned later that year on 8th September as HMS Liscomb (T-285). During the war, HMS Liscomb was one of 8 Isles-class trawlers loaned to the Royal Canadian Navy, although they weren't recommissioned as RCN vessels and still retained their RN crewmen. HMS Liscomb was commanded by the following while on loan to the RCN:<br />
<br />
* I.D. Smith, RNVR: 20th August 1942 to February 1944<br />
* Lt. J.C. Smith, RCNR: February 1944 to 16th October 1944<br />
* T/Lt. R.V. Harris, RNVR: 16th October 1944 onwards<br />
<br />
After the end of World War II in Europe, HMS Liscomb was returned to the Royal Navy on 17th June 1945 and paid off the same day. She was sold in 1946.<br />
<br />
== Media ==<br />
<!--''Excellent additions to the article would be video guides, screenshots from the game, and photos.''--><br />
<br />
<div class="portale" align="center"><br />
{| class="catlist" frame="box" style="background: #efefef;" align="center"<br />
|<span style="white-space:nowrap;">[[File:GEN_LIVE_WT_1_HPL.jpg|510px|link=https://live.warthunder.com/feed/camouflages/?vehicleCountry=britain&vehicleType=ship&vehicleClass=submarine_chaser&vehicle=uk_isles_class_trawler|]]</span> ||<br />
|-<br />
|}<br />
</div><br />
<br />
== See also ==<br />
<!--''Links to articles on the War Thunder Wiki that you think will be useful for the reader, for example:''<br />
<br />
* ''reference to the series of the ship;''<br />
* ''links to approximate analogues of other nations and research trees.''--><br />
<br />
* {{Specs-Link|uk_flower_class}}<br />
* {{Specs-Link|uk_fairmile_b_ml345}}<br />
<br />
== External links ==<br />
<!--''Paste links to sources and external resources, such as:''<br />
<br />
* ''topic on the official game forum;''<br />
* ''encyclopedia page on the ship;''<br />
* ''other literature.''--><br />
<br />
* [https://ww2db.com/ship_spec.php?ship_id=789 World War II Database - Isles-class Trawler]<br />
* [https://www.naval-history.net/WW2BritishLosses2Auxiliary.htm#traw naval-history.net - British vessels lost at sea in World War 2 - Auxiliary Warships] - originally published in British Vessels Lost at Sea, 1935-45, His Majesty's Stationary Office, 1947<br />
* [http://www.forposterityssake.ca/Navy/HMS_LISCOMB_T285.htm For Posterity's Sake - HMS LISCOMB T285]<br />
* [https://uboat.net/allies/ships/trawlers.htm uboat.net - Anti-Submarine Trawlers]<br />
* [http://www.harry-tates.org.uk/trawlers.htm Harry Tate's Navy - The Trawlers Go To War]<br />
<br />
===Bibliography===<br />
<br />
* Chesneau, R., & Gardiner, R. (1980). ''Conway's All the World's Fighting Ships, 1922-1946'' (pp. 65-66). London, England: Conway Maritime Press. ISBN 0-85177-1467.<br />
<br />
{{Britain sub-chasers}}</div>U27474208https://old-wiki.warthunder.com/index.php?title=WSP_XP_PAGE&diff=104086WSP XP PAGE2021-06-01T10:41:11Z<p>U27474208: /* New compressor table */ Removed unnecessary rowspan="1" from v4 & v5 (save a couple bytes)</p>
<hr />
<div>For you to try new stuff: Only on this page. Not on any other page. - Enjoy.<br />
<noinclude><br />
== New compressor table == <br />
<br />
{| class="wikitable" style="text-align:center"<br />
|-<br />
! colspan="3" | Compressor (RB/SB)<br />
|-<br />
! Optimal altitude<br />
! colspan="2" | Setting 1<br />
|-<br />
| 850 m <br />
| width="33%" | 2,100 hp<br />
! 100% Engine power<br />
|-<br />
| 0 m || 2,590 hp<br />
! WEP Engine power<br />
|-<br />
! Optimal altitude<br />
! colspan="2" | Setting 2<br />
|-<br />
| 5,340 m || 1,700 hp<br />
! 100% Engine power<br />
|-<br />
| 4,500 m || 2,100 hp<br />
! WEP Engine power<br />
|-<br />
|}<br />
<br />
=== v2 ===<br />
<br />
{| class="wikitable" style="text-align:center"<br />
|-<br />
! colspan="3" | Compressor (RB/SB)<br />
|-<br />
! 100%<br />
! colspan="1" | Setting 1 || Setting 2<br />
|-<br />
! Power<br />
| 2,100 hp<br />
| 1,700 hp<br />
|-<br />
! Altitude<br />
| 850 m<br />
| 5,340 m<br />
|-<br />
! WEP<br />
! colspan="1" | Setting 1 || Setting 2<br />
|-<br />
! Power<br />
| 2,590 hp<br />
| 2,100 hp<br />
|-<br />
! Altitude<br />
| 0 m<br />
| 4,500 m<br />
|-<br />
|}<br />
<br />
=== v3 ===<br />
<br />
{| class="wikitable" style="text-align:center"<br />
|-<br />
! colspan="3" width="450px" | Compressor (RB/SB)<br />
|-<br />
! colspan="3" | 100% Engine Power<br />
|-<br />
! width="100px" | Gear<br />
! width="125px" | Setting 1 <br />
! width="125px" | Setting 2<br />
|-<br />
! Power<br />
| 2,100 hp<br />
| 1,700 hp<br />
|-<br />
! Altitude<br />
| 850 m<br />
| 5,340 m<br />
|-<br />
! colspan="3" | WEP Engine Power<br />
|-<br />
! Gear<br />
! Setting 1 || Setting 2<br />
|-<br />
! Power<br />
| 2,590 hp<br />
| 2,100 hp<br />
|-<br />
! Altitude<br />
| 0 m<br />
| 4,500 m<br />
|-<br />
|}<br />
<br />
=== v4 ===<br />
<br />
{| class="wikitable" style="text-align:center" width="50%"<br />
|-<br />
! colspan="5" | Compressor (RB/SB)<br />
|-<br />
! rowspan="2" | Gear<br />
! colspan="2" | 100% Engine power<br />
! colspan="2" | WEP Engine power<br />
|-<br />
! Setting 1<br />
! Setting 2<br />
! Setting 1<br />
! Setting 2<br />
|-<br />
! Power<br />
| --<br />
| --<br />
| --<br />
| --<br />
|-<br />
! Altitude<br />
| --<br />
| --<br />
| --<br />
| --<br />
|-<br />
|}<br />
<br />
=== v5 ===<br />
<br />
{| class="wikitable" style="text-align:center" width="50%"<br />
|-<br />
! colspan="5" | Compressor (RB/SB)<br />
|-<br />
! rowspan="2" | Gear<br />
! colspan="2" | 100% Engine power<br />
! colspan="2" | WEP Engine power<br />
|-<br />
! Power<br />
! Altitude<br />
! Power<br />
! Altitude<br />
|-<br />
! Setting 1<br />
| --<br />
| --<br />
| --<br />
| --<br />
|-<br />
! Setting 2<br />
| --<br />
| --<br />
| --<br />
| --<br />
|-<br />
|}<br />
<br />
=== Current ===<br />
{| class="wikitable" style="text-align:center"<br />
|-<br />
! Compressor<br />
! Optimal altitude<br />
! 100% Engine power<br />
! WEP Engine power<br />
|-<br />
! Setting 1<br />
| _,___ m || _,___ hp || _,___ hp<br />
|-<br />
! Setting 2<br />
| _,___ m || _,___ hp || _,___ hp<br />
|}<br />
<br />
=== Old one ===<br />
<br />
{| class="wikitable" style="text-align:center"<br />
|-<br />
! colspan="3" | Compressor (RB/SB)<br />
|-<br />
! colspan="3" | Setting 1<br />
|-<br />
! Optimal altitude<br />
! 100% Engine power<br />
! WEP Engine power<br />
|-<br />
| 1,500 m || 1,602 hp || 1,954 hp<br />
|-<br />
! colspan="3" | Setting 2<br />
|-<br />
! Optimal altitude<br />
! 100% Engine power<br />
! WEP Engine power<br />
|-<br />
| 5,900 m || 1,478 hp || 1,804 hp<br />
|-<br />
<!--! colspan="3" | Setting 3<br />
|-<br />
! Optimal altitude<br />
! 100% Engine power<br />
! WEP Engine power<br />
|-<br />
| ?,??? m || ?,??? hp || ?,??? hp<br />
|- --><br />
|}<br />
<br />
== Template for value comparisons ==<br />
This template proposal allows to quickly generate value comparisons. Eg. if you'll pass penetration values of 2 weapons, it can be used to generate text like ''"It's close Soviet counterpart has 21% lower penetration"''. It can accommodate to a different language versions and flexion via optional parameters. If accepted - it can be used to built template that would be automatically pulling values for the units based purely on their codes and specified attributes (idea is to make requests like <kbd>jp_type_95_ha_go|us_m2a2|speed|forward|AB</kbd>)<br />
</noinclude><includeonly>{{#vardefine:relativeDifference|{{#expr: (1-({{{1}}}/{{{2}}})) * 100 round 0}}}}{{#vardefine:absPercentage|{{#expr: abs({{#var:relativeDifference}}) }}%}}{{#ifexpr: {{#var:relativeDifference}}=0 | {{{same|same}}} | <br />
{{#ifexpr: {{#var:relativeDifference}}>0 | {{#var:absPercentage}} {{{higher|higher}}} | {{#var:absPercentage}} {{{lower|lower}}} }} {{{than|than}}}<br />
}}</includeonly><br />
<br />
<br />
== Proposal for Ammo racks ==<br />
Because ammo racks tables are not very intuitive, here is my proposal: <br />
<!-- [[File:Ammoracks_{{PAGENAME}}.png|right|thumb|x250px|[[Ammo racks]] of the {{PAGENAME}}]] --><br />
{| class="wikitable" style="text-align:center"<br />
|-<br />
! Racks empty<br />
! none<br />
! 1<br />
! 1 & 2<br />
! 1 to 3<br />
! 1 to 4<br />
! 1 to 5<br />
! 1 to 6<br />
|-<br />
! Racks full<br />
! 1 to 6<br />
! 2 to 6<br />
! 3 to 6<br />
! 4 to 6<br />
! 5 & 6<br />
! 6<br />
! none<br />
|-<br />
| Shells onboard || __ ''(+0)'' || __ ''(+__)'' || __ ''(+__)'' || __ ''(+__)'' || __ ''(+__)'' || __ ''(+__)'' || 1 ''(+__)''<br />
|-<br />
|}<br />
<br />
===Alternative?===<br />
{| class="wikitable" style="text-align:center"<br />
|-<br />
! rowspan="2" | Racks<br />
! Full<br />
! 1st empty<br />
! 2nd empty<br />
! 3rd empty<br />
! 4th empty<br />
! Visual discrepancy<br />
|-<br />
! ◼◼◼◼<br />
! ◼◼◼◻<br />
! ◼◼◻◻<br />
! ◼◻◻◻<br />
! ◻◻◻◻<br />
! ����<br />
|-<br />
| Shells onboard || __ ''(+0)'' || __ ''(+__)'' || __ ''(+__)'' || __ ''(+__)'' || __ ''(+__)'' || Yes<br />
|-<br />
|}<br />
<br />
== Bomb tables ==<br />
I took this article: [[AN-M30A1 (100 lb)]] as a template for bomb pages.<br />
=== Proposal 1 ===<br />
==== General Info ====<br />
{| class="wikitable" style="margin-left: auto; margin-right: 0px;"<br />
! colspan="4" |Data for {{PAGENAME}} bomb<br />
|-<br />
! colspan="1" | <br />
! colspan="1" | Metric<br />
! colspan="1" | Imperial<br />
|-<br />
| Overall Length<br />
| 97.6 cm<br />
| 38.4 in<br />
|-<br />
| Body Diameter<br />
| 20.7 cm<br />
| 8.1 in<br />
|-<br />
| Filling Weight<br />
| 24.5 kg<br />
| 52.9 lb<br />
|-<br />
| Total Weight<br />
| 45.8 kg<br />
| 100 lb<br />
|-<br />
! colspan="3" |<br />
|-<br />
| Explosive Filling<br />
| colspan="2;" style="text-align:center;" | Amatol<br />
|-<br />
| Bomb Type<br />
| colspan="2;" style="text-align:center;" | High Explosive<br />
|-<br />
|}<br />
<br />
==== Effective damage ====<br />
<br />
{| class="wikitable"<br />
! colspan="1" |{{PAGENAME}} damage table<br />
! colspan="1" | Metric<br />
! colspan="1" | Imperial<br />
|-<br />
| Max armour penetration high explosive action<br />
| 79 mm<br />
| 3.11 in<br />
|-<br />
| Radius of destruction of an armoured vehicle<br />
| 2.1 m<br />
| 6.9 ft<br />
|-<br />
|Radius of fragment dispersion<br />
| 67.3 m<br />
| 220.8 ft<br />
|-<br />
|}<br />
<br />
==== Comparison with analogues ====<br />
<!--''Give a comparative description of bombs which have firepower equal to these type of weapons.''--><br />
{| class="wikitable"<br />
! colspan="8" | Comparable bombs to {{PAGENAME}}<br />
|-<br />
! colspan="1" |<br />
! colspan="1" | Name<br />
! colspan="1" | Mass<br />
! colspan="1" | Explosive mass<br />
! colspan="1" | Explosive<br />
! colspan="1" | Armor Pen.<br />
! colspan="1" | Destruction radius<br />
! colspan="1" | Frag radius<br />
|-<br />
| ▂<br />
| [[FAB-50_(50_kg)|FAB-50]]<br />
| 64 kg<br />
| 24 kg<br />
| TNT<br />
| style="text-align:right;" | 79 mm<br />
| style="text-align:right;" | 2.1 m<br />
| style="text-align:right;" | 68.6 m<br />
|-<br />
| ▀<br />
| [[SC50JA_(50_kg)|SC50JA]]<br />
| 50 kg<br />
| 25 kg<br />
| Fp.60/40<br />
| style="text-align:right;" | 80 mm<br />
| style="text-align:right;" | 2.1 m<br />
| style="text-align:right;" | 70.1 m<br />
|-<br />
| ▅<br />
| [[Navy_Type_97_Number_6_(60_kg)|Type 97 Number 6]]<br />
| 60 kg<br />
| 23 kg<br />
| TNT<br />
| style="text-align:right;" | 78 mm<br />
| style="text-align:right;" | 2.1 m<br />
| style="text-align:right;" | 67 m<br />
|-<br />
| ▅<br />
| [[Army_Type_94_GPHE_(50_kg)|Type 94 GPHE]]<br />
| 50 kg<br />
| 19.6 kg<br />
| TNT<br />
| style="text-align:right;" | 74 mm<br />
| style="text-align:right;" | 1.8 m<br />
| style="text-align:right;" | 62.5 m<br />
|-<br />
| ▄<br />
| [[GP_50_(50_kg)|GP 50]]<br />
| 58 kg<br />
| 25 kg<br />
| TNT<br />
| style="text-align:right;" | 80 mm<br />
| style="text-align:right;" | 2.1 m<br />
| style="text-align:right;" | 70.1 m<br />
|-<br />
| ▄<br />
| [[G.A.M.Mn_50_(50_kg)|G.A.M.Mn 50]]<br />
| 50 kg<br />
| 28.5 kg<br />
| M.Mn<br />
| style="text-align:right;" | 82 mm<br />
| style="text-align:right;" | 2.4 m<br />
| style="text-align:right;" | 77.1 m<br />
|-<br />
| ▄<br />
| [[D.T._No.2_(50_kg)|D.T. No.2]]<br />
| 55.7 kg<br />
| 19.9 kg<br />
| TNT<br />
| style="text-align:right;" | 73 mm<br />
| style="text-align:right;" | 2.1 m<br />
| style="text-align:right;" | 67.4 m<br />
|-<br />
|}<br />
<br />
=== Proposal 2 ===<br />
Another user updated the bomb pages with this template:<br />
{| class="wikitable"<br />
|'''Mass'''<br />
|'''45.8kg''' <br />
|-<br />
|'''Explosive type'''<br />
|'''Amatol'''<br />
|-<br />
|'''Explosive mass'''<br />
|'''24.5kg'''<br />
|-<br />
|'''TNT equivalent'''<br />
|'''24.5kg'''<br />
|-<br />
|'''Max armor penetration HE action'''<br />
|'''79 mm'''<br />
|-<br />
|'''Radius of destruction of armored vehicles'''<br />
|'''2 m'''<br />
|-<br />
|'''Radius of fragment dispersion'''<br />
|'''67 m'''<br />
|}<br />
=== Proposal 3 ===<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="2" | Bomb characteristics<br />
|-<br />
| '''Mass'''<br />
| 45.8 kg<br />
|-<br />
| '''Explosive mass'''<br />
| 24.5 kg<br />
|-<br />
| '''Explosive type'''<br />
| Amatol<br />
|-<br />
| '''TNT equivalent'''<br />
| 24.5 kg<br />
|-<br />
| '''HE max penetration'''<br />
| 79 mm<br />
|-<br />
| '''Armour destruction radius'''<br />
| 2 m<br />
|-<br />
| '''Fragment dispersion radius'''<br />
| 67 m<br />
|-<br />
|}<br />
<br />
== Machine Gun Belt Table Proposal ==<br />
<br />
'''Blank Table'''<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="2" |'''Belt Composition'''<br />
! colspan="6" |'''Belt Penetration @ 0° Angle of Attack (mm)'''<br />
|-<br />
! colspan="1" |Belt<br />
! colspan="1" |Rounds<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| ____ || ____ || ___ || ___ || ___ || ___ || ___ || ___<br />
|}<br />
<br />
{{sp-begin|Bullet Names}}<br />
___<br />
{{sp-end}}<br />
<br />
'''Example: British M2 Ammunition'''<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="2" |'''Belt Composition'''<br />
! colspan="6" |'''Belt Penetration @ 0° Angle of Attack (mm)'''<br />
|-<br />
! colspan="1" |Belt<br />
! colspan="1" |Rounds<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
|'''Default'''|| T {{-}} Ball {{-}} Ball {{-}} IAI {{-}} AP-I || 26 || 25 || 16 || 12 || 3 || 3<br />
|-<br />
|'''Universal'''|| AP-I {{-}} AP-I {{-}} AP-I {{-}} T {{-}} IAI || 26 || 25 || 16 || 12 || 3 || 3<br />
|-<br />
|'''Ground Targets'''|| T {{-}} AP {{-}} AP {{-}} AP-I {{-}} AP-I {{-}} IAI || 26 || 25 || 19 || 12 || 4 || 3<br />
|-<br />
|'''Tracers'''|| T {{-}} T {{-}} T {{-}} T {{-}} T {{-}} AP-I || 26 || 25 || 16 || 12 || 0 || 0<br />
|-<br />
|'''Stealth'''||AP-I {{-}} AP-I {{-}} AP-I {{-}} IAI {{-}} IAI || 26 || 25 || 16 || 12 || 3 || 3<br />
|}<br />
<br />
{{sp-begin|Bullet Names}}<br />
'''T -''' Tracer bullet<br />
<br />
'''Ball -''' Omni-purpose bullet<br />
<br />
'''IAI -''' Immediate-action incendiary bullet<br />
<br />
'''AP-I -''' Armor-piercing incendiary bullet<br />
<br />
'''AP -''' M2 armor-piercing bullet<br />
{{sp-end}}</div>U27474208https://old-wiki.warthunder.com/index.php?title=MGB-75&diff=104085MGB-752021-06-01T10:37:46Z<p>U27474208: /* External links */ Standardized links</p>
<hr />
<div>{{Specs-Card<br />
|code=uk_71ft_mgb<br />
|images={{Specs-Card-Image|GarageImage_{{PAGENAME}}.jpg}}<br />
}}<br />
<br />
== Description ==<br />
<!-- ''In the first part of the description, cover the history of the ship's creation and military application. In the second part, tell the reader about using this ship in the game. Add a screenshot: if a beginner player has a hard time remembering vehicles by name, a picture will help them identify the ship in question.'' --><br />
The '''{{Specs|name}}''' is a premium rank {{Specs|rank}} British motor gun boat {{Battle-rating}}. It was introduced in [[Update 1.91 "Night Vision"]]. Originally a rank I vessel, with the split of the naval tech trees in [[Update "New Power"]], {{PAGENAME}} was moved to rank II in the coastal fleet tech tree.<br />
<br />
== General info ==<br />
=== Survivability and armour ===<br />
{{Specs-Fleet-Armour}}<br />
<!-- ''Talk about the vehicle's armour. Note the most well-defended and most vulnerable zones, e.g. the ammo magazine. Evaluate the composition of components and assemblies responsible for movement and manoeuvrability. Evaluate the survivability of the primary and secondary armaments separately. Don't forget to mention the size of the crew, which plays an important role in fleet mechanics. Save tips on preserving survivability for the "Usage in battles" section. If necessary, use a graphical template to show the most well-protected or most vulnerable points in the armour.'' --><br />
<br />
MGB-75 has the following armour layout:<br />
<br />
* [[2pdr QF Mk.IIc (40 mm)|2pdr QF Mk.IIc]] gunshield: 12.7 mm hardened armour<br />
* [[20 mm/70 Oerlikon Mark V (20 mm)|20 mm/70 Oerlikon Mark V]] gunshield: 12.7 mm hardened armour<br />
* Hull: 40 mm, wood<br />
* Superstructure: 15 mm, wood<br />
<br />
[[File:MGB-75_internals.png|thumb|MGB-75 internals (starboard side).]]<br />
<br />
Like most coastal vessels, MGB-75 has no practical armour. The gunshields are largely superficial; while they may stop low-calibre machine guns, heavy machine guns and cannons will easily penetrate them at any range. The hull and superstructure are unarmoured and will not stop any sort of gunfire.<br />
<br />
The hull is split into three hull sections. Starting from the bow and working towards the stern, the first section starts at the bow and ends just in front of forward gun; the second ends after the bridge, forward of the engines; and the third ends at the stern. <br />
<br />
Any round with a large enough diameter and explosive mass can hull break MGB-75. In general, this is limited to HE rounds with a diameter greater than 4 inches (102 mm) and with an explosive mass greater than 1.5 kg. At MGB-75's battle rating, the only guns that can hull break her are:<br />
<br />
* the [[10.5 cm SK C/32 (105 mm)|10.5 cm SK C/32]], found on {{Specs-Link|germ_escort_typem1943}}; and<br />
* the [[8cwt QF Mk I (114 mm)|114 mm 8cwt QF Mk I]], found on {{Specs-Link|uk_dark_class}}. <br />
<br />
There are two ammunition storages. The first ammunition storage, which holds ammunition for the primary armament, is located in the hull above the waterline, below and slightly in front of the forward gun turret. The second ammunition storage, which holds ammunition for both the secondary and AA armament, is located above deck, in the superstructure in front of the aft gun turret. Destroying either will instantly destroy MGB-75. Since it is located in the superstructure, the second ammunition storage is particularly susceptible to detonation by random gunfire or artillery.<br />
<br />
MGB-75 has a crew complement of 12. With a stock crew, MGB-75 is knocked out when 8 crew are lost; with an aced crew, this is increased to 9. Overall, survivability is below-average. <br />
<br />
=== Mobility ===<br />
{{Specs-Fleet-Mobility}}<br />
<!-- ''Write about the ship's mobility. Evaluate its power and manoeuvrability, rudder rerouting speed, stopping speed at full tilt, with its maximum forward and reverse speed.'' --><br />
<br />
{{NavalMobility<br />
|SpeedForwardStockAB = 77<br />
|SpeedBackStockAB = 21<br />
|TurnTimeStockAB = 29.18<br />
|TurnSpeedStockAB = 43<br />
<br />
|TurnTimeSpadedAB = 19.63<br />
|TurnSpeedSpadedAB = 40<br />
<br />
|SpeedForwardStockRB = 67<br />
|SpeedBackStockRB = 19<br />
|TurnTimeStockRB = 32.40<br />
|TurnSpeedStockRB = 45<br />
<br />
|TurnTimeSpadedRB = 26.30<br />
|TurnSpeedSpadedRB = 43<br />
}}<br />
<br />
MGB-75 has a displacement of 51.5 tons.<br />
<br />
When moving forwards at high speeds, the bow will lift out of the water. This creates a blind spot where the 40 mm 2pdr QF Mk.IIc is unable to depress far enough to hit the waterline. This blindspot extends ~400 m in front of the boat and ~45° to either side.<br />
<br />
=== Modifications and economy ===<br />
{{Specs-Economy}}<br />
<br />
As a premium vehicle, all modifications are unlocked for free. <br />
<br />
== Armament ==<br />
{{Specs-Fleet-Armaments}}<br />
=== Primary armament ===<br />
{{Specs-Fleet-Primary}}<br />
<!-- ''Provide information about the characteristics of the primary armament. Evaluate their efficacy in battle based on their reload speed, ballistics and the capacity of their shells. Add a link to the main article about the weapon: <code><nowiki>{{main|Weapon name (calibre)}}</nowiki></code>. Broadly describe the ammunition available for the primary armament, and provide recommendations on how to use it and which ammunition to choose.'' --><br />
{{main|2pdr QF Mk.IIc (40 mm)}}<br />
<br />
The primary armament consists of a single 40 mm 2pdr QF Mk.IIc cannon mounted forwards in front of the bridge. Stock, the mount can traverse horizontally at a rate of 34°/s and vertically at a rate of 21°/s; with the "Primary Armament Targeting" modification installed, this is increased to 40°/s and 25°/s respectively. With a full ammunition load, there are 2,240 rounds of ammunition, or 40 magazines, available for the mount. The gun has a magazine capacity of 56 rounds and a cycle rate of fire of 200 rounds/min. With a stock crew, it can be reloaded in 7.8 seconds; with an aced crew, this is decreased to 6 seconds.<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="2" | Primary aramament guidance<br />
|-<br />
! Horizontal !! Vertical<br />
|-<br />
| ±180° || -5°/+70°<br />
|-<br />
|}<br />
<br />
There are three ammunition types available:<br />
<br />
* Universal: {{Annotation|HEF|High-explosive fragmentation}}/{{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|HEF|High-explosive fragmentation}}/{{Annotation|AP-T|Armour-piercing tracer}}<br />
* 40 mm HE: {{Annotation|HEF|High-explosive fragmentation}}/{{Annotation|HEF|High-explosive fragmentation}}/{{Annotation|HEF|High-explosive fragmentation}}/{{Annotation|AP-T|Armour-piercing tracer}}<br />
* 40 mm AP: {{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|HEF|High-explosive fragmentation}}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="7" | Penetration statistics<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| Universal || 60 || 57 || 50 || 43 || 38 || 34<br />
|-<br />
| 40 mm HE || 60 || 57 || 50 || 43 || 38 || 34<br />
|-<br />
| 40 mm AP || 60 || 57 || 50 || 43 || 38 || 34<br />
|-<br />
|}<br />
<br />
The best ammunition type is 40 mm HE, since it has the highest ratio of HE rounds to AP rounds, making it the most effective against both aircraft and the vast majority of surface targets. Take mostly 40 mm HE along with a several magazines of 40 mm AP for armoured targets.<br />
<br />
=== Secondary armament ===<br />
{{Specs-Fleet-Secondary}}<br />
<!-- ''Some ships are fitted with weapons of various calibres. Secondary armaments are defined as weapons chosen with the control <code>Select secondary weapon</code>. Evaluate the secondary armaments and give advice on how to use them. Describe the ammunition available for the secondary armament. Provide recommendations on how to use them and which ammunition to choose. Remember that any anti-air armament, even heavy calibre weapons, belong in the next section. If there is no secondary armament, remove this section.'' --><br />
{{main|20 mm/70 Oerlikon Mark V (20 mm)}}<br />
<br />
The secondary armament consists of two 20 mm/70 Oerlikon Mark V cannons in a twin mount aft. Stock, the mount can traverse horizontally at a rate of 51°/s and vertically at a rate of 43°/s; with the "Secondary Armament Targeting" modification installed, this is increased to 60°/s and 50°/s respectively. With a full ammunition load, there are 3,600 rounds of ammunition, or 60 magazines, available for the mount. Each gun has a magazine capacity of 60 rounds and a cycle rate of fire of 450 rounds/min, though the gun on the gunner's left side fires at a slightly faster rate, around 485 rounds/min. With a stock crew, the mount can be reloaded in 10.4 seconds; with an aced crew, this is decreased to 8 seconds.<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="2" | Secondary armament guidance<br />
|-<br />
! Horizontal !! Vertical<br />
|-<br />
| ±180° || -10°/+60°<br />
|-<br />
|}<br />
<br />
There are three ammunition types available:<br />
<br />
* Universal: {{Annotation|HEF-T|High-explosive fragmentation tracer}}/{{Annotation|HEF-I|High-explosive fragmentation incendiary}}/{{Annotation|AP-T|Armour-piercing tracer}}<br />
<br />
* 20 mm HE: {{Annotation|HEF-T|High-explosive fragmentation tracer}}/{{Annotation|HEF-I|High-explosive fragmentation incendiary}}/{{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|HEF-I|High-explosive fragmentation incendiary}}<br />
<br />
* 20 mm AP: {{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|HEF-I|High-explosive fragmentation incendiary}}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="7" | Penetration statistics<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| Universal || 35 || 33 || 26 || 21 || 18 || 15<br />
|-<br />
| 20 mm HE || 35 || 33 || 26 || 21 || 18 || 15<br />
|-<br />
| 20 mm AP || 35 || 33 || 26 || 21 || 18 || 15<br />
|-<br />
|}<br />
<br />
The best ammunition type is the 20 mm HE belt, since it has the highest ratio of HE rounds to AP rounds, making it the most effective against both aircraft and the vast majority of surface targets. The Universal belt is a direct downgrade to the 20 mm HE belt in terms of damage, and the 20 mm AP belt isn't really worth taking due to its relatively low armour penetration. To deal with armoured opponents, use the primary 40 mm 2pdr QF Mk.IIc instead. Take only 20 mm HE.<br />
<br />
=== Anti-aircraft armament ===<br />
{{Specs-Fleet-AA}}<br />
<!-- ''An important part of the ship's armament responsible for air defence. Anti-aircraft armament is defined by the weapon chosen with the control <code>Select anti-aircraft weapons</code>. Talk about the ship's anti-air cannons and machine guns, the number of guns and their positions, their effective range, and about their overall effectiveness – including against surface targets. If there are no anti-aircraft armaments, remove this section.'' --><br />
{{main|Lewis 1916 (7.72 mm)}}<br />
<br />
The anti-aircraft armament consists of four 7.72 mm Lewis 1916 machine guns in two twin mounts, one on either side of the bridge. A total of 7,760 rounds of ammunition, or 80 magazines, are carried for both mounts, 1,940 rounds, or 20 magazines, per gun. Each gun has a magazine capacity of 97 rounds and a cycle rate of fire of 550 rounds/min. With a stock crew, the mount can be reloaded in 18.2 seconds; with an aced crew, this is decreased to 14 seconds. Horizontal and vertical traverse rates are not stated in-game. <br />
<br />
{{Notice|Turrets are named sequentially, clockwise, starting at the bow}}<br />
<br />
{| class="wikitable" style="text-align:center" width="65%"<br />
! colspan="8" | Anti-aircraft armament guidance<br />
|-<br />
! colspan="2" rowspan="1" | No.1 Turret (starboard)<br />
! colspan="2" rowspan="1" | No.2 Turret (port)<br />
|-<br />
! Horizontal !! Vertical !! Horizontal !! Vertical<br />
|-<br />
| -45°/+170° || -5°/+60° || -170°/+45° || -5°/+60°<br />
|-<br />
|}<br />
<br />
Ammunition types cannot be selected for the anti-aircraft armament on MGB-75. Belt composition and penetration statistics are not stated in-game.<br />
<br />
=== Additional armament ===<br />
{{Specs-Fleet-Additional}}<br />
<!-- ''Describe the available additional armaments of the ship: depth charges, mines, torpedoes. Talk about their positions, available ammunition and launch features such as dead zones of torpedoes. If there is no additional armament, remove this section.'' --><br />
{{main|Mk.VII depth charge}}<br />
<br />
MGB-75 has two possible loadouts:<br />
<br />
# Without load<br />
# 2x Mk.VII depth charge<br />
<br />
'''Depth charges'''<br />
<br />
[[File:MGB-75_DCs.png|thumb|Mk.VII depth charges numbered according to their drop order (click to expand).]]<br />
<br />
The Mk.VII depth charges are carried amidships, one on either side of the bridge next to the twin 7.72 mm Lewis 1916 machine guns. They are dropped one at a time in the following order:<br />
<br />
# Starboard<br />
# Port<br />
<br />
Before spawning, the detonation time delay can be set anywhere between 3 seconds and 10 seconds.<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="7" | Depth charge characteristics<br />
|-<br />
! Mass (kg)<br />
! Explosive type<br />
! Explosive mass (kg)<br />
! TNT equivalent (kg)<br />
! HE armour penetration (mm)<br />
! Armoured vehicle destruction radius (m)<br />
! Fragment dispersion radius (m)<br />
|-<br />
| 196 || TNT || 130 || 130 || 101 || 8 || 122<br />
|-<br />
|}<br />
<br />
There is almost no practical reason to use depth charges on any naval vessel in the game. Although they usually result in a one-hit kill if used properly, they are extremely situational, requiring the player to close to point-blank ranges to even use them. In almost every case, anytime a depth charge could be used, the guns can be used instead to greater effect. In fact, depth charges tend to actually be a liability in battle, since they essentially act as exposed ammo racks before they're dropped. They can be shot at, and if destroyed, they have a chance to detonate, instantly destroying the boat.<br />
<br />
Despite this, some success can be had in dropping them either next to, or in front of a large, slow target. If dropping them next to the target, remember the depth charge drop order, since it's most likely that only the depth charges dropped on the side closest to the enemy will deal any damage. If dropping in front of the target, rush in from the sides as quickly as possible and drop them all at once directly in front of the target. For both cases, set the depth charge time delay to the minimum 3 seconds, since any higher time delay will only allow the depth charge to sink further away from the target, giving them more time to move out of the way. Again, using depth charges is extremely situational, and they will only be a liability the vast majority of the time, so take them at your own discretion.<br />
<br />
== Usage in battles ==<br />
<!-- ''Describe the technique of using this ship, the characteristics of her use in a team and tips on strategy. Abstain from writing an entire guide – don't try to provide a single point of view, but give the reader food for thought. Talk about the most dangerous opponents for this vehicle and provide recommendations on fighting them. If necessary, note the specifics of playing with this vehicle in various modes (AB, RB, SB).'' --><br />
<br />
MGB-75 is plagued by two huge weaknesses that limit her offensive and defensive capabilities. The first of these is that the hull planes when moving at high speeds, lifting the bow out of the water. This normally isn't an issue for most boats, but on MGB-75, it creates a huge blindspot extending ~400 m in front of the boat and ~45° to either side where the primary 40 mm 2pdr QF Mk.IIc is unable to depress far enough to hit the waterline. Because of this, the 40 mm cannon is completely unable to hit opponents within ~250-300 m, depending on the target's height. <br />
<br />
The second weakness is the aft ammunition storage, which is located above deck in the superstructure. Normally, ammunition detonations aren't much of a factor in a coastal vessel's effectiveness. This is because ammunition storages are typically located in the hull and placed a good enough distance away from the outside of the boat. The internal space afts like a buffer, with the hull preventing any HE rounds from reaching the ammunition storage. However, on MGB-75, there is no internal space buffer for the aft ammunition storage, making ammunition detonations very common. Unfortunately, since this ammo rack is tied to both the secondary and anti-aircraft armament, and since the ammunition load for the anti-aircraft armament cannot be selected, there is no easy way to remove this ammunition storage.<br />
<br />
To best make use of MGB-75, both of these weaknesses need to be taken into account. Because of the blindspot, stick to mid-range or long-range engagements. Being at long range also has the added benefit of making it more defficult for enemies to specifically target the aft ammunition storage, but as with most vessels, it's best to not be hit in the first place, so stay on the move and make use of cover wherever possible. If the need to fight at close-range arises, switch to the secondary 20 mm/70 Oerlikon Mark V cannons. These guns are mounted aft, so they cannot target anything in a ~45° arc forwards, ~75° when moving. However, unlike the 40 mm cannon, the 20 mm cannons can at least target close-range opponents at all speeds. MGB-75 is much weaker in close-range engagements, though, since the 20 mm cannons have a much longer reload, and they require turning the hull to aim, so avoid close-range engagements as much as possible.<br />
<br />
Because of the aft ammunition storage, opponents armed with 3 or 4-inch cannons should be the biggest priority, since a single hit with one of these guns anywhere near the ammunition storage is enough to detonate it. Artillery strikes, friendly or not, are also a major hazard for MGB-75. Keep away from capture points and narrow passageways where artillery is common, and the artillery strike warning appears, leave the area as soon as possible. Lastly, the ammunition storage is very susceptible to aircraft attacks due to its location. Keep the AI gunners targeting aircraft, but don't solely rely on them. Instead, use them as a warning for any aircraft in the area, and manually shoot them down if necessary.<br />
<br />
=== Pros and cons ===<br />
<!-- ''Summarise and briefly evaluate the vehicle in terms of its characteristics and combat effectiveness. Mark its pros and cons in the bulleted list. Try not to use more than 6 points for each of the characteristics. Avoid using categorical definitions such as "bad", "good" and the like - use substitutions with softer forms such as "inadequate" and "effective".'' --><br />
<br />
'''Pros:'''<br />
* Powerful primary and secondary armaments<br />
<br />
'''Cons:'''<br />
* Blind spot directly in front when moving at high speeds<br />
* Long reloads for both primary and secondary armaments<br />
* Exposed ammunition storage <br />
<br />
== History ==<br />
<!-- ''Describe the history of the creation and combat usage of the ship in more detail than in the introduction. If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the ship and adding a block "/History" (example: <nowiki>https://wiki.warthunder.com/(Ship-name)/History</nowiki>) and add a link to it here using the <code>main</code> template. Be sure to reference text and sources by using <code><nowiki><ref></ref></nowiki></code>, as well as adding them at the end of the article with <code><nowiki><references /></nowiki></code>. This section may also include the ship's dev blog entry (if applicable) and the in-game encyclopedia description (under <code><nowiki>=== In-game description ===</nowiki></code>, also if applicable).'' --><br />
<br />
By early 1941, many of the British Power Boat Company (BPB) 60-foot, 63-foot, and 70-foot boats had been completed and were in Royal Navy Coastal Forces service, and already, their weaknesses began to show. The boats were small and lightly constructed, and the living conditions for the crew were cramped. Additionally, because of their underpowered engines, these boats were quite slow. While their low top speed was certainly acceptable for anti-submarine work, as they were initially built to perform, it was insufficient by 1941 as most of the boats had been converted into motor gun boats by this point. Thus, in 1941, BPB began plans for a successor to their previous lines of boats.<br />
<br />
The new design had a length of 71 ft 9 in (21.9 m), a beam of 20 ft 7 in (6.3 m), and a draught of about 4 f 3 in (1.3 m). It was powered by three Packard petrol engines driving three shafts, allowing it to achieve a top speed of 42 knots. After their introduction, the BPB 71'9" boats formed the bulk of Coastal Forces' MGB fleet until the introduction of the larger and more heavily-armed Fairmile D boats. Later in the war, many BPB 71'9" boats would receive a pair a 18-inch torpedo tubes and refitted for motor torpedo boat duty. In total, 96 boats were built:<br />
<br />
* MGBs 74-81: Ordered in November 1940 as MA/SBs, all were completed in 1942 as MGBs. Any surviving boats by September 1943 were refitted with a pair of 18-inch torpedo tubes and redesignated as MTBs 412-416. Any of the boats that survived the war were disposed of in October 1945.<br />
* MGBs 107-119: Ordered in November 1940 as MA/SBs, the order was canceled in March 1941. They were subsequently reordered in February 1942, with all completed in 1942 as MGBs. Any surviving boats by September 1943 were refitted with a pair of 18-inch torpedo tubes and redesignated as MTBs 417-418 and 430-438. Any of the boats that survived the war were disposed of either in March 1945 or in October 1945. <br />
* MGBs 120-130: Ordered in May 1942 as MGBs, all werecompleted in 1943. All boats were refitted in September 1943 with a pair of 18-inch torpedo tubes and redesignated as MTBs 439-449. Most of the boats that survived the war were disposed of in October 1945.<br />
* MTBs 450-489: Ordered as MGBs, all were completed between 1943-1945 as MTBs. Any of the boats that survived the war were disposed of at various dates or used as controlled targets.<br />
* MTBs 490-500: ordered as MTBs, all were completed between 1944-1945. Any of the boats that survived the war were disposed of at various dates or used as controlled targets, with the exception of MTB-496 and MTB-498. These were refurbished in 1949 and renumbered MTB-1596 and MTB-1598 to form the Proud-class along with MTBs 1505-1509, MTB-1519, and MTB-1522. They were given the names "Proud Patriot" and "Proud Patroller", respectively. The "Proud" class boats were all sold in June 1958.<br />
* MTBs 501-509: ordered as MTBs, all completed in 1945. All of the boats survived the war. MTBs 501-504 were sold or disposed of at various dates. MTBs 505-509 were refurbished in 1949 and renumbered MTBs 1505-1509 to form the Proud-class along with MTB-1596, MTB-1598, MTB-1519, and MTB-1522. They were given the names "Proud Fusilier", "Proud Grenadier", "Proud Guardsman", "Proud Highlander", and "Proud Knight", respectively. The Proud-class boats were all sold in June 1958.<br />
* MTBs 519-522: ordered as MGBs, all completed in 1946 as MTBs. With the exception of MTB-520, they were refurbished in 1949 and renumbered MTB-1519, MTB-1521, and MTB-1522. MTB-1519 and MTB-1522 formed the Proud-class along with MTBs 1505-1509, MTB-1596, and MTB-1598. They were given the names "Proud Lancer" and "Proud Legionary", respectively. The Proud-class boats were all sold in June 1958.<br />
<br />
MGB-75 was part of the original order placed in November 1940. She was ordered as a motor anti-submarine boat but was completed on 8th May 1942 as a motor gun boat. MGB-75 was commanded by the following:<br />
<br />
* T/Lt. L.G.R. Campbell, RNVR: October 1942 to February 1943<br />
* T/S.Lt. F.J. Head, RNVR: April 1943 to June 1943<br />
* T/S.Lt. W.G.L. Salmon, RNVR: From June 1944 onwards<br />
<br />
MGB-75 served as part of the 6th MGB Flotilla with HMS Beehive at Felixstowe through 1943. In September 1943, MGB-75 received her refit and was redesignated as MTB-413. Through 1944, MTB-413 served as part of the 1st MTB Flotilla at Portsmouth. MTB-413 survived the war and was disposed of in October 1945.<br />
<br />
== Media ==<br />
<!-- ''Excellent additions to the article would be video guides, screenshots from the game, and photos.'' --><br />
<br />
;Skins<br />
* [https://live.warthunder.com/feed/camouflages/?vehicleCountry=britain&vehicleType=ship&vehicleClass=gun_boat&vehicle=uk_71ft_mgb Skins and camouflages for the {{PAGENAME}} from live.warthunder.com.]<br />
<br />
== See also ==<br />
<!-- ''Links to articles on the War Thunder Wiki that you think will be useful for the reader, for example:''<br />
* ''reference to the series of the ship;''<br />
* ''links to approximate analogues of other nations and research trees.'' --><br />
<br />
* {{Specs-Link|uk_70ft_mgb}}<br />
* {{Specs-Link|uk_fairmile_a_ml100}}<br />
* {{Specs-Link|uk_fairmile_b_ml345}}<br />
<br />
== External links ==<br />
<!-- ''Paste links to sources and external resources, such as:''<br />
* ''topic on the official game forum;''<br />
* ''encyclopedia page on the ship;''<br />
* ''other literature.'' --><br />
<br />
* [http://cfv.org.uk/research/boat/database <nowiki>[Coastal Forces Veterans]</nowiki> Boat Database]<br />
* [https://www.unithistories.com/units_british/RN_CoastalForces.html#MGB%20Boats <nowiki>[unithistories.com]</nowiki> Royal Navy Coastal Forces 1940-1945]<br />
* [http://www.naval-history.net/WW2BritishLosses3Coastal.htm <nowiki>[naval-history.net]</nowiki> British vessels lost at sea in World War 2 - MGB, MTB, SGB, ML, etc] - originally published in ''British Vessels Lost at Sea, 1935-45'', His Majesty's Stationary Office, 1947<br />
* [http://www.navypedia.org/ships/uk/brit_c_f_mtb412.htm <nowiki>[NAVYPEDIA]</nowiki> MTB412 motor torpedo boats (93, 1942 - 1946)]<br />
* [https://uboat.net/allies/warships/class.html?ID=673&navy=HMS <nowiki>[uboat.net]</nowiki> BPB 72 feet-type class]<br />
* [https://www.yalumba.co.uk/Framesets/British%20Power%20Boat%20Co%20-%20Page%204,%20MGBs.html <nowiki>[yalumba.co.uk]</nowiki> British Power Boat Co Page 4]<br />
* [http://www.coastal-forces.org.uk/boats.html <nowiki>[Coastal Forces Heritage Trust]</nowiki> Boats]<br />
<br />
===Bibliography===<br />
<br />
* Konstam, Angus (2010). ''British Motor Gun Boat 1939–45''. Osprey Publishing Ltd. ISBN 978-1-84908-077-4.<br />
<br />
{{Britain boats}}<br />
{{Britain premium ships}}</div>U27474208https://old-wiki.warthunder.com/index.php?title=WSP_XP_PAGE&diff=104072WSP XP PAGE2021-06-01T05:17:25Z<p>U27474208: /* New compressor table */</p>
<hr />
<div>For you to try new stuff: Only on this page. Not on any other page. - Enjoy.<br />
<noinclude><br />
== New compressor table == <br />
<br />
{| class="wikitable" style="text-align:center"<br />
|-<br />
! colspan="3" | Compressor (RB/SB)<br />
|-<br />
! Optimal altitude<br />
! colspan="2" | Setting 1<br />
|-<br />
| 850 m <br />
| width="33%" | 2,100 hp<br />
! 100% Engine power<br />
|-<br />
| 0 m || 2,590 hp<br />
! WEP Engine power<br />
|-<br />
! Optimal altitude<br />
! colspan="2" | Setting 2<br />
|-<br />
| 5,340 m || 1,700 hp<br />
! 100% Engine power<br />
|-<br />
| 4,500 m || 2,100 hp<br />
! WEP Engine power<br />
|-<br />
|}<br />
<br />
=== v2 ===<br />
<br />
{| class="wikitable" style="text-align:center"<br />
|-<br />
! colspan="3" | Compressor (RB/SB)<br />
|-<br />
! 100%<br />
! colspan="1" | Setting 1 || Setting 2<br />
|-<br />
! Power<br />
| 2,100 hp<br />
| 1,700 hp<br />
|-<br />
! Altitude<br />
| 850 m<br />
| 5,340 m<br />
|-<br />
! WEP<br />
! colspan="1" | Setting 1 || Setting 2<br />
|-<br />
! Power<br />
| 2,590 hp<br />
| 2,100 hp<br />
|-<br />
! Altitude<br />
| 0 m<br />
| 4,500 m<br />
|-<br />
|}<br />
<br />
=== v3 ===<br />
<br />
{| class="wikitable" style="text-align:center"<br />
|-<br />
! colspan="3" width="450px" | Compressor (RB/SB)<br />
|-<br />
! colspan="3" | 100% Engine Power<br />
|-<br />
! width="100px" | Gear<br />
! width="125px" | Setting 1 <br />
! width="125px" | Setting 2<br />
|-<br />
! Power<br />
| 2,100 hp<br />
| 1,700 hp<br />
|-<br />
! Altitude<br />
| 850 m<br />
| 5,340 m<br />
|-<br />
! colspan="3" | WEP Engine Power<br />
|-<br />
! Gear<br />
! Setting 1 || Setting 2<br />
|-<br />
! Power<br />
| 2,590 hp<br />
| 2,100 hp<br />
|-<br />
! Altitude<br />
| 0 m<br />
| 4,500 m<br />
|-<br />
|}<br />
<br />
=== v4 ===<br />
<br />
{| class="wikitable" style="text-align:center" width="50%"<br />
|-<br />
! colspan="5" | Compressor (RB/SB)<br />
|-<br />
! rowspan="2" | Gear<br />
! colspan="2" | 100% Engine power<br />
! colspan="2" | WEP Engine power<br />
|-<br />
! rowspan="1" | Setting 1<br />
! rowspan="1" | Setting 2<br />
! rowspan="1" | Setting 1<br />
! rowspan="1" | Setting 2<br />
|-<br />
! Power<br />
| --<br />
| --<br />
| --<br />
| --<br />
|-<br />
! Altitude<br />
| --<br />
| --<br />
| --<br />
| --<br />
|-<br />
|}<br />
<br />
=== Current ===<br />
{| class="wikitable" style="text-align:center"<br />
|-<br />
! Compressor<br />
! Optimal altitude<br />
! 100% Engine power<br />
! WEP Engine power<br />
|-<br />
! Setting 1<br />
| _,___ m || _,___ hp || _,___ hp<br />
|-<br />
! Setting 2<br />
| _,___ m || _,___ hp || _,___ hp<br />
|}<br />
<br />
=== Old one ===<br />
<br />
{| class="wikitable" style="text-align:center"<br />
|-<br />
! colspan="3" | Compressor (RB/SB)<br />
|-<br />
! colspan="3" | Setting 1<br />
|-<br />
! Optimal altitude<br />
! 100% Engine power<br />
! WEP Engine power<br />
|-<br />
| 1,500 m || 1,602 hp || 1,954 hp<br />
|-<br />
! colspan="3" | Setting 2<br />
|-<br />
! Optimal altitude<br />
! 100% Engine power<br />
! WEP Engine power<br />
|-<br />
| 5,900 m || 1,478 hp || 1,804 hp<br />
|-<br />
<!--! colspan="3" | Setting 3<br />
|-<br />
! Optimal altitude<br />
! 100% Engine power<br />
! WEP Engine power<br />
|-<br />
| ?,??? m || ?,??? hp || ?,??? hp<br />
|- --><br />
|}<br />
<br />
== Template for value comparisons ==<br />
This template proposal allows to quickly generate value comparisons. Eg. if you'll pass penetration values of 2 weapons, it can be used to generate text like ''"It's close Soviet counterpart has 21% lower penetration"''. It can accommodate to a different language versions and flexion via optional parameters. If accepted - it can be used to built template that would be automatically pulling values for the units based purely on their codes and specified attributes (idea is to make requests like <kbd>jp_type_95_ha_go|us_m2a2|speed|forward|AB</kbd>)<br />
</noinclude><includeonly>{{#vardefine:relativeDifference|{{#expr: (1-({{{1}}}/{{{2}}})) * 100 round 0}}}}{{#vardefine:absPercentage|{{#expr: abs({{#var:relativeDifference}}) }}%}}{{#ifexpr: {{#var:relativeDifference}}=0 | {{{same|same}}} | <br />
{{#ifexpr: {{#var:relativeDifference}}>0 | {{#var:absPercentage}} {{{higher|higher}}} | {{#var:absPercentage}} {{{lower|lower}}} }} {{{than|than}}}<br />
}}</includeonly><br />
<br />
<br />
== Proposal for Ammo racks ==<br />
Because ammo racks tables are not very intuitive, here is my proposal: <br />
<!-- [[File:Ammoracks_{{PAGENAME}}.png|right|thumb|x250px|[[Ammo racks]] of the {{PAGENAME}}]] --><br />
{| class="wikitable" style="text-align:center"<br />
|-<br />
! Racks empty<br />
! none<br />
! 1<br />
! 1 & 2<br />
! 1 to 3<br />
! 1 to 4<br />
! 1 to 5<br />
! 1 to 6<br />
|-<br />
! Racks full<br />
! 1 to 6<br />
! 2 to 6<br />
! 3 to 6<br />
! 4 to 6<br />
! 5 & 6<br />
! 6<br />
! none<br />
|-<br />
| Shells onboard || __ ''(+0)'' || __ ''(+__)'' || __ ''(+__)'' || __ ''(+__)'' || __ ''(+__)'' || __ ''(+__)'' || 1 ''(+__)''<br />
|-<br />
|}<br />
<br />
===Alternative?===<br />
{| class="wikitable" style="text-align:center"<br />
|-<br />
! rowspan="2" | Racks<br />
! Full<br />
! 1st empty<br />
! 2nd empty<br />
! 3rd empty<br />
! 4th empty<br />
! Visual discrepancy<br />
|-<br />
! ◼◼◼◼<br />
! ◼◼◼◻<br />
! ◼◼◻◻<br />
! ◼◻◻◻<br />
! ◻◻◻◻<br />
! ����<br />
|-<br />
| Shells onboard || __ ''(+0)'' || __ ''(+__)'' || __ ''(+__)'' || __ ''(+__)'' || __ ''(+__)'' || Yes<br />
|-<br />
|}<br />
<br />
== Bomb tables ==<br />
I took this article: [[AN-M30A1 (100 lb)]] as a template for bomb pages.<br />
=== Proposal 1 ===<br />
==== General Info ====<br />
{| class="wikitable" style="margin-left: auto; margin-right: 0px;"<br />
! colspan="4" |Data for {{PAGENAME}} bomb<br />
|-<br />
! colspan="1" | <br />
! colspan="1" | Metric<br />
! colspan="1" | Imperial<br />
|-<br />
| Overall Length<br />
| 97.6 cm<br />
| 38.4 in<br />
|-<br />
| Body Diameter<br />
| 20.7 cm<br />
| 8.1 in<br />
|-<br />
| Filling Weight<br />
| 24.5 kg<br />
| 52.9 lb<br />
|-<br />
| Total Weight<br />
| 45.8 kg<br />
| 100 lb<br />
|-<br />
! colspan="3" |<br />
|-<br />
| Explosive Filling<br />
| colspan="2;" style="text-align:center;" | Amatol<br />
|-<br />
| Bomb Type<br />
| colspan="2;" style="text-align:center;" | High Explosive<br />
|-<br />
|}<br />
<br />
==== Effective damage ====<br />
<br />
{| class="wikitable"<br />
! colspan="1" |{{PAGENAME}} damage table<br />
! colspan="1" | Metric<br />
! colspan="1" | Imperial<br />
|-<br />
| Max armour penetration high explosive action<br />
| 79 mm<br />
| 3.11 in<br />
|-<br />
| Radius of destruction of an armoured vehicle<br />
| 2.1 m<br />
| 6.9 ft<br />
|-<br />
|Radius of fragment dispersion<br />
| 67.3 m<br />
| 220.8 ft<br />
|-<br />
|}<br />
<br />
==== Comparison with analogues ====<br />
<!--''Give a comparative description of bombs which have firepower equal to these type of weapons.''--><br />
{| class="wikitable"<br />
! colspan="8" | Comparable bombs to {{PAGENAME}}<br />
|-<br />
! colspan="1" |<br />
! colspan="1" | Name<br />
! colspan="1" | Mass<br />
! colspan="1" | Explosive mass<br />
! colspan="1" | Explosive<br />
! colspan="1" | Armor Pen.<br />
! colspan="1" | Destruction radius<br />
! colspan="1" | Frag radius<br />
|-<br />
| ▂<br />
| [[FAB-50_(50_kg)|FAB-50]]<br />
| 64 kg<br />
| 24 kg<br />
| TNT<br />
| style="text-align:right;" | 79 mm<br />
| style="text-align:right;" | 2.1 m<br />
| style="text-align:right;" | 68.6 m<br />
|-<br />
| ▀<br />
| [[SC50JA_(50_kg)|SC50JA]]<br />
| 50 kg<br />
| 25 kg<br />
| Fp.60/40<br />
| style="text-align:right;" | 80 mm<br />
| style="text-align:right;" | 2.1 m<br />
| style="text-align:right;" | 70.1 m<br />
|-<br />
| ▅<br />
| [[Navy_Type_97_Number_6_(60_kg)|Type 97 Number 6]]<br />
| 60 kg<br />
| 23 kg<br />
| TNT<br />
| style="text-align:right;" | 78 mm<br />
| style="text-align:right;" | 2.1 m<br />
| style="text-align:right;" | 67 m<br />
|-<br />
| ▅<br />
| [[Army_Type_94_GPHE_(50_kg)|Type 94 GPHE]]<br />
| 50 kg<br />
| 19.6 kg<br />
| TNT<br />
| style="text-align:right;" | 74 mm<br />
| style="text-align:right;" | 1.8 m<br />
| style="text-align:right;" | 62.5 m<br />
|-<br />
| ▄<br />
| [[GP_50_(50_kg)|GP 50]]<br />
| 58 kg<br />
| 25 kg<br />
| TNT<br />
| style="text-align:right;" | 80 mm<br />
| style="text-align:right;" | 2.1 m<br />
| style="text-align:right;" | 70.1 m<br />
|-<br />
| ▄<br />
| [[G.A.M.Mn_50_(50_kg)|G.A.M.Mn 50]]<br />
| 50 kg<br />
| 28.5 kg<br />
| M.Mn<br />
| style="text-align:right;" | 82 mm<br />
| style="text-align:right;" | 2.4 m<br />
| style="text-align:right;" | 77.1 m<br />
|-<br />
| ▄<br />
| [[D.T._No.2_(50_kg)|D.T. No.2]]<br />
| 55.7 kg<br />
| 19.9 kg<br />
| TNT<br />
| style="text-align:right;" | 73 mm<br />
| style="text-align:right;" | 2.1 m<br />
| style="text-align:right;" | 67.4 m<br />
|-<br />
|}<br />
<br />
=== Proposal 2 ===<br />
Another user updated the bomb pages with this template:<br />
{| class="wikitable"<br />
|'''Mass'''<br />
|'''45.8kg''' <br />
|-<br />
|'''Explosive type'''<br />
|'''Amatol'''<br />
|-<br />
|'''Explosive mass'''<br />
|'''24.5kg'''<br />
|-<br />
|'''TNT equivalent'''<br />
|'''24.5kg'''<br />
|-<br />
|'''Max armor penetration HE action'''<br />
|'''79 mm'''<br />
|-<br />
|'''Radius of destruction of armored vehicles'''<br />
|'''2 m'''<br />
|-<br />
|'''Radius of fragment dispersion'''<br />
|'''67 m'''<br />
|}<br />
=== Proposal 3 ===<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="2" | Bomb characteristics<br />
|-<br />
| '''Mass'''<br />
| 45.8 kg<br />
|-<br />
| '''Explosive mass'''<br />
| 24.5 kg<br />
|-<br />
| '''Explosive type'''<br />
| Amatol<br />
|-<br />
| '''TNT equivalent'''<br />
| 24.5 kg<br />
|-<br />
| '''HE max penetration'''<br />
| 79 mm<br />
|-<br />
| '''Armour destruction radius'''<br />
| 2 m<br />
|-<br />
| '''Fragment dispersion radius'''<br />
| 67 m<br />
|-<br />
|}<br />
<br />
== Machine Gun Belt Table Proposal ==<br />
<br />
'''Blank Table'''<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="2" |'''Belt Composition'''<br />
! colspan="6" |'''Belt Penetration @ 0° Angle of Attack (mm)'''<br />
|-<br />
! colspan="1" |Belt<br />
! colspan="1" |Rounds<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| ____ || ____ || ___ || ___ || ___ || ___ || ___ || ___<br />
|}<br />
<br />
{{sp-begin|Bullet Names}}<br />
___<br />
{{sp-end}}<br />
<br />
'''Example: British M2 Ammunition'''<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="2" |'''Belt Composition'''<br />
! colspan="6" |'''Belt Penetration @ 0° Angle of Attack (mm)'''<br />
|-<br />
! colspan="1" |Belt<br />
! colspan="1" |Rounds<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
|'''Default'''|| T {{-}} Ball {{-}} Ball {{-}} IAI {{-}} AP-I || 26 || 25 || 16 || 12 || 3 || 3<br />
|-<br />
|'''Universal'''|| AP-I {{-}} AP-I {{-}} AP-I {{-}} T {{-}} IAI || 26 || 25 || 16 || 12 || 3 || 3<br />
|-<br />
|'''Ground Targets'''|| T {{-}} AP {{-}} AP {{-}} AP-I {{-}} AP-I {{-}} IAI || 26 || 25 || 19 || 12 || 4 || 3<br />
|-<br />
|'''Tracers'''|| T {{-}} T {{-}} T {{-}} T {{-}} T {{-}} AP-I || 26 || 25 || 16 || 12 || 0 || 0<br />
|-<br />
|'''Stealth'''||AP-I {{-}} AP-I {{-}} AP-I {{-}} IAI {{-}} IAI || 26 || 25 || 16 || 12 || 3 || 3<br />
|}<br />
<br />
{{sp-begin|Bullet Names}}<br />
'''T -''' Tracer bullet<br />
<br />
'''Ball -''' Omni-purpose bullet<br />
<br />
'''IAI -''' Immediate-action incendiary bullet<br />
<br />
'''AP-I -''' Armor-piercing incendiary bullet<br />
<br />
'''AP -''' M2 armor-piercing bullet<br />
{{sp-end}}</div>U27474208https://old-wiki.warthunder.com/index.php?title=MGB-75&diff=104068MGB-752021-06-01T04:02:19Z<p>U27474208: /* See also */ more relevant vehicles; readded standard skins link</p>
<hr />
<div>{{Specs-Card<br />
|code=uk_71ft_mgb<br />
|images={{Specs-Card-Image|GarageImage_{{PAGENAME}}.jpg}}<br />
}}<br />
<br />
== Description ==<br />
<!-- ''In the first part of the description, cover the history of the ship's creation and military application. In the second part, tell the reader about using this ship in the game. Add a screenshot: if a beginner player has a hard time remembering vehicles by name, a picture will help them identify the ship in question.'' --><br />
The '''{{Specs|name}}''' is a premium rank {{Specs|rank}} British motor gun boat {{Battle-rating}}. It was introduced in [[Update 1.91 "Night Vision"]]. Originally a rank I vessel, with the split of the naval tech trees in [[Update "New Power"]], {{PAGENAME}} was moved to rank II in the coastal fleet tech tree.<br />
<br />
== General info ==<br />
=== Survivability and armour ===<br />
{{Specs-Fleet-Armour}}<br />
<!-- ''Talk about the vehicle's armour. Note the most well-defended and most vulnerable zones, e.g. the ammo magazine. Evaluate the composition of components and assemblies responsible for movement and manoeuvrability. Evaluate the survivability of the primary and secondary armaments separately. Don't forget to mention the size of the crew, which plays an important role in fleet mechanics. Save tips on preserving survivability for the "Usage in battles" section. If necessary, use a graphical template to show the most well-protected or most vulnerable points in the armour.'' --><br />
<br />
MGB-75 has the following armour layout:<br />
<br />
* [[2pdr QF Mk.IIc (40 mm)|2pdr QF Mk.IIc]] gunshield: 12.7 mm hardened armour<br />
* [[20 mm/70 Oerlikon Mark V (20 mm)|20 mm/70 Oerlikon Mark V]] gunshield: 12.7 mm hardened armour<br />
* Hull: 40 mm, wood<br />
* Superstructure: 15 mm, wood<br />
<br />
[[File:MGB-75_internals.png|thumb|MGB-75 internals (starboard side).]]<br />
<br />
Like most coastal vessels, MGB-75 has no practical armour. The gunshields are largely superficial; while they may stop low-calibre machine guns, heavy machine guns and cannons will easily penetrate them at any range. The hull and superstructure are unarmoured and will not stop any sort of gunfire.<br />
<br />
The hull is split into three hull sections. Starting from the bow and working towards the stern, the first section starts at the bow and ends just in front of forward gun; the second ends after the bridge, forward of the engines; and the third ends at the stern. <br />
<br />
Any round with a large enough diameter and explosive mass can hull break MGB-75. In general, this is limited to HE rounds with a diameter greater than 4 inches (102 mm) and with an explosive mass greater than 1.5 kg. At MGB-75's battle rating, the only guns that can hull break her are:<br />
<br />
* the [[10.5 cm SK C/32 (105 mm)|10.5 cm SK C/32]], found on {{Specs-Link|germ_escort_typem1943}}; and<br />
* the [[8cwt QF Mk I (114 mm)|114 mm 8cwt QF Mk I]], found on {{Specs-Link|uk_dark_class}}. <br />
<br />
There are two ammunition storages. The first ammunition storage, which holds ammunition for the primary armament, is located in the hull above the waterline, below and slightly in front of the forward gun turret. The second ammunition storage, which holds ammunition for both the secondary and AA armament, is located above deck, in the superstructure in front of the aft gun turret. Destroying either will instantly destroy MGB-75. Since it is located in the superstructure, the second ammunition storage is particularly susceptible to detonation by random gunfire or artillery.<br />
<br />
MGB-75 has a crew complement of 12. With a stock crew, MGB-75 is knocked out when 8 crew are lost; with an aced crew, this is increased to 9. Overall, survivability is below-average. <br />
<br />
=== Mobility ===<br />
{{Specs-Fleet-Mobility}}<br />
<!-- ''Write about the ship's mobility. Evaluate its power and manoeuvrability, rudder rerouting speed, stopping speed at full tilt, with its maximum forward and reverse speed.'' --><br />
<br />
{{NavalMobility<br />
|SpeedForwardStockAB = 77<br />
|SpeedBackStockAB = 21<br />
|TurnTimeStockAB = 29.18<br />
|TurnSpeedStockAB = 43<br />
<br />
|TurnTimeSpadedAB = 19.63<br />
|TurnSpeedSpadedAB = 40<br />
<br />
|SpeedForwardStockRB = 67<br />
|SpeedBackStockRB = 19<br />
|TurnTimeStockRB = 32.40<br />
|TurnSpeedStockRB = 45<br />
<br />
|TurnTimeSpadedRB = 26.30<br />
|TurnSpeedSpadedRB = 43<br />
}}<br />
<br />
MGB-75 has a displacement of 51.5 tons.<br />
<br />
When moving forwards at high speeds, the bow will lift out of the water. This creates a blind spot where the 40 mm 2pdr QF Mk.IIc is unable to depress far enough to hit the waterline. This blindspot extends ~400 m in front of the boat and ~45° to either side.<br />
<br />
=== Modifications and economy ===<br />
{{Specs-Economy}}<br />
<br />
As a premium vehicle, all modifications are unlocked for free. <br />
<br />
== Armament ==<br />
{{Specs-Fleet-Armaments}}<br />
=== Primary armament ===<br />
{{Specs-Fleet-Primary}}<br />
<!-- ''Provide information about the characteristics of the primary armament. Evaluate their efficacy in battle based on their reload speed, ballistics and the capacity of their shells. Add a link to the main article about the weapon: <code><nowiki>{{main|Weapon name (calibre)}}</nowiki></code>. Broadly describe the ammunition available for the primary armament, and provide recommendations on how to use it and which ammunition to choose.'' --><br />
{{main|2pdr QF Mk.IIc (40 mm)}}<br />
<br />
The primary armament consists of a single 40 mm 2pdr QF Mk.IIc cannon mounted forwards in front of the bridge. Stock, the mount can traverse horizontally at a rate of 34°/s and vertically at a rate of 21°/s; with the "Primary Armament Targeting" modification installed, this is increased to 40°/s and 25°/s respectively. With a full ammunition load, there are 2,240 rounds of ammunition, or 40 magazines, available for the mount. The gun has a magazine capacity of 56 rounds and a cycle rate of fire of 200 rounds/min. With a stock crew, it can be reloaded in 7.8 seconds; with an aced crew, this is decreased to 6 seconds.<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="2" | Primary aramament guidance<br />
|-<br />
! Horizontal !! Vertical<br />
|-<br />
| ±180° || -5°/+70°<br />
|-<br />
|}<br />
<br />
There are three ammunition types available:<br />
<br />
* Universal: {{Annotation|HEF|High-explosive fragmentation}}/{{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|HEF|High-explosive fragmentation}}/{{Annotation|AP-T|Armour-piercing tracer}}<br />
* 40 mm HE: {{Annotation|HEF|High-explosive fragmentation}}/{{Annotation|HEF|High-explosive fragmentation}}/{{Annotation|HEF|High-explosive fragmentation}}/{{Annotation|AP-T|Armour-piercing tracer}}<br />
* 40 mm AP: {{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|HEF|High-explosive fragmentation}}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="7" | Penetration statistics<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| Universal || 60 || 57 || 50 || 43 || 38 || 34<br />
|-<br />
| 40 mm HE || 60 || 57 || 50 || 43 || 38 || 34<br />
|-<br />
| 40 mm AP || 60 || 57 || 50 || 43 || 38 || 34<br />
|-<br />
|}<br />
<br />
The best ammunition type is 40 mm HE, since it has the highest ratio of HE rounds to AP rounds, making it the most effective against both aircraft and the vast majority of surface targets. Take mostly 40 mm HE along with a several magazines of 40 mm AP for armoured targets.<br />
<br />
=== Secondary armament ===<br />
{{Specs-Fleet-Secondary}}<br />
<!-- ''Some ships are fitted with weapons of various calibres. Secondary armaments are defined as weapons chosen with the control <code>Select secondary weapon</code>. Evaluate the secondary armaments and give advice on how to use them. Describe the ammunition available for the secondary armament. Provide recommendations on how to use them and which ammunition to choose. Remember that any anti-air armament, even heavy calibre weapons, belong in the next section. If there is no secondary armament, remove this section.'' --><br />
{{main|20 mm/70 Oerlikon Mark V (20 mm)}}<br />
<br />
The secondary armament consists of two 20 mm/70 Oerlikon Mark V cannons in a twin mount aft. Stock, the mount can traverse horizontally at a rate of 51°/s and vertically at a rate of 43°/s; with the "Secondary Armament Targeting" modification installed, this is increased to 60°/s and 50°/s respectively. With a full ammunition load, there are 3,600 rounds of ammunition, or 60 magazines, available for the mount. Each gun has a magazine capacity of 60 rounds and a cycle rate of fire of 450 rounds/min, though the gun on the gunner's left side fires at a slightly faster rate, around 485 rounds/min. With a stock crew, the mount can be reloaded in 10.4 seconds; with an aced crew, this is decreased to 8 seconds.<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="2" | Secondary armament guidance<br />
|-<br />
! Horizontal !! Vertical<br />
|-<br />
| ±180° || -10°/+60°<br />
|-<br />
|}<br />
<br />
There are three ammunition types available:<br />
<br />
* Universal: {{Annotation|HEF-T|High-explosive fragmentation tracer}}/{{Annotation|HEF-I|High-explosive fragmentation incendiary}}/{{Annotation|AP-T|Armour-piercing tracer}}<br />
<br />
* 20 mm HE: {{Annotation|HEF-T|High-explosive fragmentation tracer}}/{{Annotation|HEF-I|High-explosive fragmentation incendiary}}/{{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|HEF-I|High-explosive fragmentation incendiary}}<br />
<br />
* 20 mm AP: {{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|HEF-I|High-explosive fragmentation incendiary}}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="7" | Penetration statistics<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| Universal || 35 || 33 || 26 || 21 || 18 || 15<br />
|-<br />
| 20 mm HE || 35 || 33 || 26 || 21 || 18 || 15<br />
|-<br />
| 20 mm AP || 35 || 33 || 26 || 21 || 18 || 15<br />
|-<br />
|}<br />
<br />
The best ammunition type is the 20 mm HE belt, since it has the highest ratio of HE rounds to AP rounds, making it the most effective against both aircraft and the vast majority of surface targets. The Universal belt is a direct downgrade to the 20 mm HE belt in terms of damage, and the 20 mm AP belt isn't really worth taking due to its relatively low armour penetration. To deal with armoured opponents, use the primary 40 mm 2pdr QF Mk.IIc instead. Take only 20 mm HE.<br />
<br />
=== Anti-aircraft armament ===<br />
{{Specs-Fleet-AA}}<br />
<!-- ''An important part of the ship's armament responsible for air defence. Anti-aircraft armament is defined by the weapon chosen with the control <code>Select anti-aircraft weapons</code>. Talk about the ship's anti-air cannons and machine guns, the number of guns and their positions, their effective range, and about their overall effectiveness – including against surface targets. If there are no anti-aircraft armaments, remove this section.'' --><br />
{{main|Lewis 1916 (7.72 mm)}}<br />
<br />
The anti-aircraft armament consists of four 7.72 mm Lewis 1916 machine guns in two twin mounts, one on either side of the bridge. A total of 7,760 rounds of ammunition, or 80 magazines, are carried for both mounts, 1,940 rounds, or 20 magazines, per gun. Each gun has a magazine capacity of 97 rounds and a cycle rate of fire of 550 rounds/min. With a stock crew, the mount can be reloaded in 18.2 seconds; with an aced crew, this is decreased to 14 seconds. Horizontal and vertical traverse rates are not stated in-game. <br />
<br />
{{Notice|Turrets are named sequentially, clockwise, starting at the bow}}<br />
<br />
{| class="wikitable" style="text-align:center" width="65%"<br />
! colspan="8" | Anti-aircraft armament guidance<br />
|-<br />
! colspan="2" rowspan="1" | No.1 Turret (starboard)<br />
! colspan="2" rowspan="1" | No.2 Turret (port)<br />
|-<br />
! Horizontal !! Vertical !! Horizontal !! Vertical<br />
|-<br />
| -45°/+170° || -5°/+60° || -170°/+45° || -5°/+60°<br />
|-<br />
|}<br />
<br />
Ammunition types cannot be selected for the anti-aircraft armament on MGB-75. Belt composition and penetration statistics are not stated in-game.<br />
<br />
=== Additional armament ===<br />
{{Specs-Fleet-Additional}}<br />
<!-- ''Describe the available additional armaments of the ship: depth charges, mines, torpedoes. Talk about their positions, available ammunition and launch features such as dead zones of torpedoes. If there is no additional armament, remove this section.'' --><br />
{{main|Mk.VII depth charge}}<br />
<br />
MGB-75 has two possible loadouts:<br />
<br />
# Without load<br />
# 2x Mk.VII depth charge<br />
<br />
'''Depth charges'''<br />
<br />
[[File:MGB-75_DCs.png|thumb|Mk.VII depth charges numbered according to their drop order (click to expand).]]<br />
<br />
The Mk.VII depth charges are carried amidships, one on either side of the bridge next to the twin 7.72 mm Lewis 1916 machine guns. They are dropped one at a time in the following order:<br />
<br />
# Starboard<br />
# Port<br />
<br />
Before spawning, the detonation time delay can be set anywhere between 3 seconds and 10 seconds.<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="7" | Depth charge characteristics<br />
|-<br />
! Mass (kg)<br />
! Explosive type<br />
! Explosive mass (kg)<br />
! TNT equivalent (kg)<br />
! HE armour penetration (mm)<br />
! Armoured vehicle destruction radius (m)<br />
! Fragment dispersion radius (m)<br />
|-<br />
| 196 || TNT || 130 || 130 || 101 || 8 || 122<br />
|-<br />
|}<br />
<br />
There is almost no practical reason to use depth charges on any naval vessel in the game. Although they usually result in a one-hit kill if used properly, they are extremely situational, requiring the player to close to point-blank ranges to even use them. In almost every case, anytime a depth charge could be used, the guns can be used instead to greater effect. In fact, depth charges tend to actually be a liability in battle, since they essentially act as exposed ammo racks before they're dropped. They can be shot at, and if destroyed, they have a chance to detonate, instantly destroying the boat.<br />
<br />
Despite this, some success can be had in dropping them either next to, or in front of a large, slow target. If dropping them next to the target, remember the depth charge drop order, since it's most likely that only the depth charges dropped on the side closest to the enemy will deal any damage. If dropping in front of the target, rush in from the sides as quickly as possible and drop them all at once directly in front of the target. For both cases, set the depth charge time delay to the minimum 3 seconds, since any higher time delay will only allow the depth charge to sink further away from the target, giving them more time to move out of the way. Again, using depth charges is extremely situational, and they will only be a liability the vast majority of the time, so take them at your own discretion.<br />
<br />
== Usage in battles ==<br />
<!-- ''Describe the technique of using this ship, the characteristics of her use in a team and tips on strategy. Abstain from writing an entire guide – don't try to provide a single point of view, but give the reader food for thought. Talk about the most dangerous opponents for this vehicle and provide recommendations on fighting them. If necessary, note the specifics of playing with this vehicle in various modes (AB, RB, SB).'' --><br />
<br />
MGB-75 is plagued by two huge weaknesses that limit her offensive and defensive capabilities. The first of these is that the hull planes when moving at high speeds, lifting the bow out of the water. This normally isn't an issue for most boats, but on MGB-75, it creates a huge blindspot extending ~400 m in front of the boat and ~45° to either side where the primary 40 mm 2pdr QF Mk.IIc is unable to depress far enough to hit the waterline. Because of this, the 40 mm cannon is completely unable to hit opponents within ~250-300 m, depending on the target's height. <br />
<br />
The second weakness is the aft ammunition storage, which is located above deck in the superstructure. Normally, ammunition detonations aren't much of a factor in a coastal vessel's effectiveness. This is because ammunition storages are typically located in the hull and placed a good enough distance away from the outside of the boat. The internal space afts like a buffer, with the hull preventing any HE rounds from reaching the ammunition storage. However, on MGB-75, there is no internal space buffer for the aft ammunition storage, making ammunition detonations very common. Unfortunately, since this ammo rack is tied to both the secondary and anti-aircraft armament, and since the ammunition load for the anti-aircraft armament cannot be selected, there is no easy way to remove this ammunition storage.<br />
<br />
To best make use of MGB-75, both of these weaknesses need to be taken into account. Because of the blindspot, stick to mid-range or long-range engagements. Being at long range also has the added benefit of making it more defficult for enemies to specifically target the aft ammunition storage, but as with most vessels, it's best to not be hit in the first place, so stay on the move and make use of cover wherever possible. If the need to fight at close-range arises, switch to the secondary 20 mm/70 Oerlikon Mark V cannons. These guns are mounted aft, so they cannot target anything in a ~45° arc forwards, ~75° when moving. However, unlike the 40 mm cannon, the 20 mm cannons can at least target close-range opponents at all speeds. MGB-75 is much weaker in close-range engagements, though, since the 20 mm cannons have a much longer reload, and they require turning the hull to aim, so avoid close-range engagements as much as possible.<br />
<br />
Because of the aft ammunition storage, opponents armed with 3 or 4-inch cannons should be the biggest priority, since a single hit with one of these guns anywhere near the ammunition storage is enough to detonate it. Artillery strikes, friendly or not, are also a major hazard for MGB-75. Keep away from capture points and narrow passageways where artillery is common, and the artillery strike warning appears, leave the area as soon as possible. Lastly, the ammunition storage is very susceptible to aircraft attacks due to its location. Keep the AI gunners targeting aircraft, but don't solely rely on them. Instead, use them as a warning for any aircraft in the area, and manually shoot them down if necessary.<br />
<br />
=== Pros and cons ===<br />
<!-- ''Summarise and briefly evaluate the vehicle in terms of its characteristics and combat effectiveness. Mark its pros and cons in the bulleted list. Try not to use more than 6 points for each of the characteristics. Avoid using categorical definitions such as "bad", "good" and the like - use substitutions with softer forms such as "inadequate" and "effective".'' --><br />
<br />
'''Pros:'''<br />
* Powerful primary and secondary armaments<br />
<br />
'''Cons:'''<br />
* Blind spot directly in front when moving at high speeds<br />
* Long reloads for both primary and secondary armaments<br />
* Exposed ammunition storage <br />
<br />
== History ==<br />
<!-- ''Describe the history of the creation and combat usage of the ship in more detail than in the introduction. If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the ship and adding a block "/History" (example: <nowiki>https://wiki.warthunder.com/(Ship-name)/History</nowiki>) and add a link to it here using the <code>main</code> template. Be sure to reference text and sources by using <code><nowiki><ref></ref></nowiki></code>, as well as adding them at the end of the article with <code><nowiki><references /></nowiki></code>. This section may also include the ship's dev blog entry (if applicable) and the in-game encyclopedia description (under <code><nowiki>=== In-game description ===</nowiki></code>, also if applicable).'' --><br />
<br />
By early 1941, many of the British Power Boat Company (BPB) 60-foot, 63-foot, and 70-foot boats had been completed and were in Royal Navy Coastal Forces service, and already, their weaknesses began to show. The boats were small and lightly constructed, and the living conditions for the crew were cramped. Additionally, because of their underpowered engines, these boats were quite slow. While their low top speed was certainly acceptable for anti-submarine work, as they were initially built to perform, it was insufficient by 1941 as most of the boats had been converted into motor gun boats by this point. Thus, in 1941, BPB began plans for a successor to their previous lines of boats.<br />
<br />
The new design had a length of 71 ft 9 in (21.9 m), a beam of 20 ft 7 in (6.3 m), and a draught of about 4 f 3 in (1.3 m). It was powered by three Packard petrol engines driving three shafts, allowing it to achieve a top speed of 42 knots. After their introduction, the BPB 71'9" boats formed the bulk of Coastal Forces' MGB fleet until the introduction of the larger and more heavily-armed Fairmile D boats. Later in the war, many BPB 71'9" boats would receive a pair a 18-inch torpedo tubes and refitted for motor torpedo boat duty. In total, 96 boats were built:<br />
<br />
* MGBs 74-81: Ordered in November 1940 as MA/SBs, all were completed in 1942 as MGBs. Any surviving boats by September 1943 were refitted with a pair of 18-inch torpedo tubes and redesignated as MTBs 412-416. Any of the boats that survived the war were disposed of in October 1945.<br />
* MGBs 107-119: Ordered in November 1940 as MA/SBs, the order was canceled in March 1941. They were subsequently reordered in February 1942, with all completed in 1942 as MGBs. Any surviving boats by September 1943 were refitted with a pair of 18-inch torpedo tubes and redesignated as MTBs 417-418 and 430-438. Any of the boats that survived the war were disposed of either in March 1945 or in October 1945. <br />
* MGBs 120-130: Ordered in May 1942 as MGBs, all werecompleted in 1943. All boats were refitted in September 1943 with a pair of 18-inch torpedo tubes and redesignated as MTBs 439-449. Most of the boats that survived the war were disposed of in October 1945.<br />
* MTBs 450-489: Ordered as MGBs, all were completed between 1943-1945 as MTBs. Any of the boats that survived the war were disposed of at various dates or used as controlled targets.<br />
* MTBs 490-500: ordered as MTBs, all were completed between 1944-1945. Any of the boats that survived the war were disposed of at various dates or used as controlled targets, with the exception of MTB-496 and MTB-498. These were refurbished in 1949 and renumbered MTB-1596 and MTB-1598 to form the Proud-class along with MTBs 1505-1509, MTB-1519, and MTB-1522. They were given the names "Proud Patriot" and "Proud Patroller", respectively. The "Proud" class boats were all sold in June 1958.<br />
* MTBs 501-509: ordered as MTBs, all completed in 1945. All of the boats survived the war. MTBs 501-504 were sold or disposed of at various dates. MTBs 505-509 were refurbished in 1949 and renumbered MTBs 1505-1509 to form the Proud-class along with MTB-1596, MTB-1598, MTB-1519, and MTB-1522. They were given the names "Proud Fusilier", "Proud Grenadier", "Proud Guardsman", "Proud Highlander", and "Proud Knight", respectively. The Proud-class boats were all sold in June 1958.<br />
* MTBs 519-522: ordered as MGBs, all completed in 1946 as MTBs. With the exception of MTB-520, they were refurbished in 1949 and renumbered MTB-1519, MTB-1521, and MTB-1522. MTB-1519 and MTB-1522 formed the Proud-class along with MTBs 1505-1509, MTB-1596, and MTB-1598. They were given the names "Proud Lancer" and "Proud Legionary", respectively. The Proud-class boats were all sold in June 1958.<br />
<br />
MGB-75 was part of the original order placed in November 1940. She was ordered as a motor anti-submarine boat but was completed on 8th May 1942 as a motor gun boat. MGB-75 was commanded by the following:<br />
<br />
* T/Lt. L.G.R. Campbell, RNVR: October 1942 to February 1943<br />
* T/S.Lt. F.J. Head, RNVR: April 1943 to June 1943<br />
* T/S.Lt. W.G.L. Salmon, RNVR: From June 1944 onwards<br />
<br />
MGB-75 served as part of the 6th MGB Flotilla with HMS Beehive at Felixstowe through 1943. In September 1943, MGB-75 received her refit and was redesignated as MTB-413. Through 1944, MTB-413 served as part of the 1st MTB Flotilla at Portsmouth. MTB-413 survived the war and was disposed of in October 1945.<br />
<br />
== Media ==<br />
<!-- ''Excellent additions to the article would be video guides, screenshots from the game, and photos.'' --><br />
<br />
;Skins<br />
* [https://live.warthunder.com/feed/camouflages/?vehicleCountry=britain&vehicleType=ship&vehicleClass=gun_boat&vehicle=uk_71ft_mgb Skins and camouflages for the {{PAGENAME}} from live.warthunder.com.]<br />
<br />
== See also ==<br />
<!-- ''Links to articles on the War Thunder Wiki that you think will be useful for the reader, for example:''<br />
* ''reference to the series of the ship;''<br />
* ''links to approximate analogues of other nations and research trees.'' --><br />
<br />
* {{Specs-Link|uk_70ft_mgb}}<br />
* {{Specs-Link|uk_fairmile_a_ml100}}<br />
* {{Specs-Link|uk_fairmile_b_ml345}}<br />
<br />
== External links ==<br />
<!-- ''Paste links to sources and external resources, such as:''<br />
* ''topic on the official game forum;''<br />
* ''encyclopedia page on the ship;''<br />
* ''other literature.'' --><br />
<br />
* [http://cfv.org.uk/research/boat/database Coastal Forces Veterans - Boat Database]<br />
* [https://www.unithistories.com/units_british/RN_CoastalForces.html#MGB%20Boats unithistories.com - Royal Navy Coastal Forces 1940-1945]<br />
* [http://www.naval-history.net/WW2BritishLosses3Coastal.htm naval-history.net - British vessels lost at sea in World War 2 - MGB, MTB, SGB, ML, etc] - originally published in ''British Vessels Lost at Sea, 1935-45'', His Majesty's Stationary Office, 1947<br />
* [http://www.navypedia.org/ships/uk/brit_c_f_mtb412.htm NAVYPEDIA - MTB412 motor torpedo boats (93, 1942 - 1946)]<br />
* [https://uboat.net/allies/warships/class.html?ID=673&navy=HMS uboat.net - BPB 72 feet-type class]<br />
* [https://www.yalumba.co.uk/Framesets/British%20Power%20Boat%20Co%20-%20Page%204,%20MGBs.html yalumba.co.uk - British Power Boat Co Page 4]<br />
* [http://www.coastal-forces.org.uk/boats.html Coastal Forces Heritage Trust - Boats]<br />
<br />
===Bibliography===<br />
<br />
* Konstam, Angus (2010). ''British Motor Gun Boat 1939–45''. Osprey Publishing Ltd. ISBN 978-1-84908-077-4.<br />
<br />
{{Britain boats}}<br />
{{Britain premium ships}}</div>U27474208https://old-wiki.warthunder.com/index.php?title=MGB-75&diff=104067MGB-752021-06-01T03:57:29Z<p>U27474208: /* History */ Minor grammar</p>
<hr />
<div>{{Specs-Card<br />
|code=uk_71ft_mgb<br />
|images={{Specs-Card-Image|GarageImage_{{PAGENAME}}.jpg}}<br />
}}<br />
<br />
== Description ==<br />
<!-- ''In the first part of the description, cover the history of the ship's creation and military application. In the second part, tell the reader about using this ship in the game. Add a screenshot: if a beginner player has a hard time remembering vehicles by name, a picture will help them identify the ship in question.'' --><br />
The '''{{Specs|name}}''' is a premium rank {{Specs|rank}} British motor gun boat {{Battle-rating}}. It was introduced in [[Update 1.91 "Night Vision"]]. Originally a rank I vessel, with the split of the naval tech trees in [[Update "New Power"]], {{PAGENAME}} was moved to rank II in the coastal fleet tech tree.<br />
<br />
== General info ==<br />
=== Survivability and armour ===<br />
{{Specs-Fleet-Armour}}<br />
<!-- ''Talk about the vehicle's armour. Note the most well-defended and most vulnerable zones, e.g. the ammo magazine. Evaluate the composition of components and assemblies responsible for movement and manoeuvrability. Evaluate the survivability of the primary and secondary armaments separately. Don't forget to mention the size of the crew, which plays an important role in fleet mechanics. Save tips on preserving survivability for the "Usage in battles" section. If necessary, use a graphical template to show the most well-protected or most vulnerable points in the armour.'' --><br />
<br />
MGB-75 has the following armour layout:<br />
<br />
* [[2pdr QF Mk.IIc (40 mm)|2pdr QF Mk.IIc]] gunshield: 12.7 mm hardened armour<br />
* [[20 mm/70 Oerlikon Mark V (20 mm)|20 mm/70 Oerlikon Mark V]] gunshield: 12.7 mm hardened armour<br />
* Hull: 40 mm, wood<br />
* Superstructure: 15 mm, wood<br />
<br />
[[File:MGB-75_internals.png|thumb|MGB-75 internals (starboard side).]]<br />
<br />
Like most coastal vessels, MGB-75 has no practical armour. The gunshields are largely superficial; while they may stop low-calibre machine guns, heavy machine guns and cannons will easily penetrate them at any range. The hull and superstructure are unarmoured and will not stop any sort of gunfire.<br />
<br />
The hull is split into three hull sections. Starting from the bow and working towards the stern, the first section starts at the bow and ends just in front of forward gun; the second ends after the bridge, forward of the engines; and the third ends at the stern. <br />
<br />
Any round with a large enough diameter and explosive mass can hull break MGB-75. In general, this is limited to HE rounds with a diameter greater than 4 inches (102 mm) and with an explosive mass greater than 1.5 kg. At MGB-75's battle rating, the only guns that can hull break her are:<br />
<br />
* the [[10.5 cm SK C/32 (105 mm)|10.5 cm SK C/32]], found on {{Specs-Link|germ_escort_typem1943}}; and<br />
* the [[8cwt QF Mk I (114 mm)|114 mm 8cwt QF Mk I]], found on {{Specs-Link|uk_dark_class}}. <br />
<br />
There are two ammunition storages. The first ammunition storage, which holds ammunition for the primary armament, is located in the hull above the waterline, below and slightly in front of the forward gun turret. The second ammunition storage, which holds ammunition for both the secondary and AA armament, is located above deck, in the superstructure in front of the aft gun turret. Destroying either will instantly destroy MGB-75. Since it is located in the superstructure, the second ammunition storage is particularly susceptible to detonation by random gunfire or artillery.<br />
<br />
MGB-75 has a crew complement of 12. With a stock crew, MGB-75 is knocked out when 8 crew are lost; with an aced crew, this is increased to 9. Overall, survivability is below-average. <br />
<br />
=== Mobility ===<br />
{{Specs-Fleet-Mobility}}<br />
<!-- ''Write about the ship's mobility. Evaluate its power and manoeuvrability, rudder rerouting speed, stopping speed at full tilt, with its maximum forward and reverse speed.'' --><br />
<br />
{{NavalMobility<br />
|SpeedForwardStockAB = 77<br />
|SpeedBackStockAB = 21<br />
|TurnTimeStockAB = 29.18<br />
|TurnSpeedStockAB = 43<br />
<br />
|TurnTimeSpadedAB = 19.63<br />
|TurnSpeedSpadedAB = 40<br />
<br />
|SpeedForwardStockRB = 67<br />
|SpeedBackStockRB = 19<br />
|TurnTimeStockRB = 32.40<br />
|TurnSpeedStockRB = 45<br />
<br />
|TurnTimeSpadedRB = 26.30<br />
|TurnSpeedSpadedRB = 43<br />
}}<br />
<br />
MGB-75 has a displacement of 51.5 tons.<br />
<br />
When moving forwards at high speeds, the bow will lift out of the water. This creates a blind spot where the 40 mm 2pdr QF Mk.IIc is unable to depress far enough to hit the waterline. This blindspot extends ~400 m in front of the boat and ~45° to either side.<br />
<br />
=== Modifications and economy ===<br />
{{Specs-Economy}}<br />
<br />
As a premium vehicle, all modifications are unlocked for free. <br />
<br />
== Armament ==<br />
{{Specs-Fleet-Armaments}}<br />
=== Primary armament ===<br />
{{Specs-Fleet-Primary}}<br />
<!-- ''Provide information about the characteristics of the primary armament. Evaluate their efficacy in battle based on their reload speed, ballistics and the capacity of their shells. Add a link to the main article about the weapon: <code><nowiki>{{main|Weapon name (calibre)}}</nowiki></code>. Broadly describe the ammunition available for the primary armament, and provide recommendations on how to use it and which ammunition to choose.'' --><br />
{{main|2pdr QF Mk.IIc (40 mm)}}<br />
<br />
The primary armament consists of a single 40 mm 2pdr QF Mk.IIc cannon mounted forwards in front of the bridge. Stock, the mount can traverse horizontally at a rate of 34°/s and vertically at a rate of 21°/s; with the "Primary Armament Targeting" modification installed, this is increased to 40°/s and 25°/s respectively. With a full ammunition load, there are 2,240 rounds of ammunition, or 40 magazines, available for the mount. The gun has a magazine capacity of 56 rounds and a cycle rate of fire of 200 rounds/min. With a stock crew, it can be reloaded in 7.8 seconds; with an aced crew, this is decreased to 6 seconds.<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="2" | Primary aramament guidance<br />
|-<br />
! Horizontal !! Vertical<br />
|-<br />
| ±180° || -5°/+70°<br />
|-<br />
|}<br />
<br />
There are three ammunition types available:<br />
<br />
* Universal: {{Annotation|HEF|High-explosive fragmentation}}/{{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|HEF|High-explosive fragmentation}}/{{Annotation|AP-T|Armour-piercing tracer}}<br />
* 40 mm HE: {{Annotation|HEF|High-explosive fragmentation}}/{{Annotation|HEF|High-explosive fragmentation}}/{{Annotation|HEF|High-explosive fragmentation}}/{{Annotation|AP-T|Armour-piercing tracer}}<br />
* 40 mm AP: {{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|HEF|High-explosive fragmentation}}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="7" | Penetration statistics<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| Universal || 60 || 57 || 50 || 43 || 38 || 34<br />
|-<br />
| 40 mm HE || 60 || 57 || 50 || 43 || 38 || 34<br />
|-<br />
| 40 mm AP || 60 || 57 || 50 || 43 || 38 || 34<br />
|-<br />
|}<br />
<br />
The best ammunition type is 40 mm HE, since it has the highest ratio of HE rounds to AP rounds, making it the most effective against both aircraft and the vast majority of surface targets. Take mostly 40 mm HE along with a several magazines of 40 mm AP for armoured targets.<br />
<br />
=== Secondary armament ===<br />
{{Specs-Fleet-Secondary}}<br />
<!-- ''Some ships are fitted with weapons of various calibres. Secondary armaments are defined as weapons chosen with the control <code>Select secondary weapon</code>. Evaluate the secondary armaments and give advice on how to use them. Describe the ammunition available for the secondary armament. Provide recommendations on how to use them and which ammunition to choose. Remember that any anti-air armament, even heavy calibre weapons, belong in the next section. If there is no secondary armament, remove this section.'' --><br />
{{main|20 mm/70 Oerlikon Mark V (20 mm)}}<br />
<br />
The secondary armament consists of two 20 mm/70 Oerlikon Mark V cannons in a twin mount aft. Stock, the mount can traverse horizontally at a rate of 51°/s and vertically at a rate of 43°/s; with the "Secondary Armament Targeting" modification installed, this is increased to 60°/s and 50°/s respectively. With a full ammunition load, there are 3,600 rounds of ammunition, or 60 magazines, available for the mount. Each gun has a magazine capacity of 60 rounds and a cycle rate of fire of 450 rounds/min, though the gun on the gunner's left side fires at a slightly faster rate, around 485 rounds/min. With a stock crew, the mount can be reloaded in 10.4 seconds; with an aced crew, this is decreased to 8 seconds.<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="2" | Secondary armament guidance<br />
|-<br />
! Horizontal !! Vertical<br />
|-<br />
| ±180° || -10°/+60°<br />
|-<br />
|}<br />
<br />
There are three ammunition types available:<br />
<br />
* Universal: {{Annotation|HEF-T|High-explosive fragmentation tracer}}/{{Annotation|HEF-I|High-explosive fragmentation incendiary}}/{{Annotation|AP-T|Armour-piercing tracer}}<br />
<br />
* 20 mm HE: {{Annotation|HEF-T|High-explosive fragmentation tracer}}/{{Annotation|HEF-I|High-explosive fragmentation incendiary}}/{{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|HEF-I|High-explosive fragmentation incendiary}}<br />
<br />
* 20 mm AP: {{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|HEF-I|High-explosive fragmentation incendiary}}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="7" | Penetration statistics<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| Universal || 35 || 33 || 26 || 21 || 18 || 15<br />
|-<br />
| 20 mm HE || 35 || 33 || 26 || 21 || 18 || 15<br />
|-<br />
| 20 mm AP || 35 || 33 || 26 || 21 || 18 || 15<br />
|-<br />
|}<br />
<br />
The best ammunition type is the 20 mm HE belt, since it has the highest ratio of HE rounds to AP rounds, making it the most effective against both aircraft and the vast majority of surface targets. The Universal belt is a direct downgrade to the 20 mm HE belt in terms of damage, and the 20 mm AP belt isn't really worth taking due to its relatively low armour penetration. To deal with armoured opponents, use the primary 40 mm 2pdr QF Mk.IIc instead. Take only 20 mm HE.<br />
<br />
=== Anti-aircraft armament ===<br />
{{Specs-Fleet-AA}}<br />
<!-- ''An important part of the ship's armament responsible for air defence. Anti-aircraft armament is defined by the weapon chosen with the control <code>Select anti-aircraft weapons</code>. Talk about the ship's anti-air cannons and machine guns, the number of guns and their positions, their effective range, and about their overall effectiveness – including against surface targets. If there are no anti-aircraft armaments, remove this section.'' --><br />
{{main|Lewis 1916 (7.72 mm)}}<br />
<br />
The anti-aircraft armament consists of four 7.72 mm Lewis 1916 machine guns in two twin mounts, one on either side of the bridge. A total of 7,760 rounds of ammunition, or 80 magazines, are carried for both mounts, 1,940 rounds, or 20 magazines, per gun. Each gun has a magazine capacity of 97 rounds and a cycle rate of fire of 550 rounds/min. With a stock crew, the mount can be reloaded in 18.2 seconds; with an aced crew, this is decreased to 14 seconds. Horizontal and vertical traverse rates are not stated in-game. <br />
<br />
{{Notice|Turrets are named sequentially, clockwise, starting at the bow}}<br />
<br />
{| class="wikitable" style="text-align:center" width="65%"<br />
! colspan="8" | Anti-aircraft armament guidance<br />
|-<br />
! colspan="2" rowspan="1" | No.1 Turret (starboard)<br />
! colspan="2" rowspan="1" | No.2 Turret (port)<br />
|-<br />
! Horizontal !! Vertical !! Horizontal !! Vertical<br />
|-<br />
| -45°/+170° || -5°/+60° || -170°/+45° || -5°/+60°<br />
|-<br />
|}<br />
<br />
Ammunition types cannot be selected for the anti-aircraft armament on MGB-75. Belt composition and penetration statistics are not stated in-game.<br />
<br />
=== Additional armament ===<br />
{{Specs-Fleet-Additional}}<br />
<!-- ''Describe the available additional armaments of the ship: depth charges, mines, torpedoes. Talk about their positions, available ammunition and launch features such as dead zones of torpedoes. If there is no additional armament, remove this section.'' --><br />
{{main|Mk.VII depth charge}}<br />
<br />
MGB-75 has two possible loadouts:<br />
<br />
# Without load<br />
# 2x Mk.VII depth charge<br />
<br />
'''Depth charges'''<br />
<br />
[[File:MGB-75_DCs.png|thumb|Mk.VII depth charges numbered according to their drop order (click to expand).]]<br />
<br />
The Mk.VII depth charges are carried amidships, one on either side of the bridge next to the twin 7.72 mm Lewis 1916 machine guns. They are dropped one at a time in the following order:<br />
<br />
# Starboard<br />
# Port<br />
<br />
Before spawning, the detonation time delay can be set anywhere between 3 seconds and 10 seconds.<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="7" | Depth charge characteristics<br />
|-<br />
! Mass (kg)<br />
! Explosive type<br />
! Explosive mass (kg)<br />
! TNT equivalent (kg)<br />
! HE armour penetration (mm)<br />
! Armoured vehicle destruction radius (m)<br />
! Fragment dispersion radius (m)<br />
|-<br />
| 196 || TNT || 130 || 130 || 101 || 8 || 122<br />
|-<br />
|}<br />
<br />
There is almost no practical reason to use depth charges on any naval vessel in the game. Although they usually result in a one-hit kill if used properly, they are extremely situational, requiring the player to close to point-blank ranges to even use them. In almost every case, anytime a depth charge could be used, the guns can be used instead to greater effect. In fact, depth charges tend to actually be a liability in battle, since they essentially act as exposed ammo racks before they're dropped. They can be shot at, and if destroyed, they have a chance to detonate, instantly destroying the boat.<br />
<br />
Despite this, some success can be had in dropping them either next to, or in front of a large, slow target. If dropping them next to the target, remember the depth charge drop order, since it's most likely that only the depth charges dropped on the side closest to the enemy will deal any damage. If dropping in front of the target, rush in from the sides as quickly as possible and drop them all at once directly in front of the target. For both cases, set the depth charge time delay to the minimum 3 seconds, since any higher time delay will only allow the depth charge to sink further away from the target, giving them more time to move out of the way. Again, using depth charges is extremely situational, and they will only be a liability the vast majority of the time, so take them at your own discretion.<br />
<br />
== Usage in battles ==<br />
<!-- ''Describe the technique of using this ship, the characteristics of her use in a team and tips on strategy. Abstain from writing an entire guide – don't try to provide a single point of view, but give the reader food for thought. Talk about the most dangerous opponents for this vehicle and provide recommendations on fighting them. If necessary, note the specifics of playing with this vehicle in various modes (AB, RB, SB).'' --><br />
<br />
MGB-75 is plagued by two huge weaknesses that limit her offensive and defensive capabilities. The first of these is that the hull planes when moving at high speeds, lifting the bow out of the water. This normally isn't an issue for most boats, but on MGB-75, it creates a huge blindspot extending ~400 m in front of the boat and ~45° to either side where the primary 40 mm 2pdr QF Mk.IIc is unable to depress far enough to hit the waterline. Because of this, the 40 mm cannon is completely unable to hit opponents within ~250-300 m, depending on the target's height. <br />
<br />
The second weakness is the aft ammunition storage, which is located above deck in the superstructure. Normally, ammunition detonations aren't much of a factor in a coastal vessel's effectiveness. This is because ammunition storages are typically located in the hull and placed a good enough distance away from the outside of the boat. The internal space afts like a buffer, with the hull preventing any HE rounds from reaching the ammunition storage. However, on MGB-75, there is no internal space buffer for the aft ammunition storage, making ammunition detonations very common. Unfortunately, since this ammo rack is tied to both the secondary and anti-aircraft armament, and since the ammunition load for the anti-aircraft armament cannot be selected, there is no easy way to remove this ammunition storage.<br />
<br />
To best make use of MGB-75, both of these weaknesses need to be taken into account. Because of the blindspot, stick to mid-range or long-range engagements. Being at long range also has the added benefit of making it more defficult for enemies to specifically target the aft ammunition storage, but as with most vessels, it's best to not be hit in the first place, so stay on the move and make use of cover wherever possible. If the need to fight at close-range arises, switch to the secondary 20 mm/70 Oerlikon Mark V cannons. These guns are mounted aft, so they cannot target anything in a ~45° arc forwards, ~75° when moving. However, unlike the 40 mm cannon, the 20 mm cannons can at least target close-range opponents at all speeds. MGB-75 is much weaker in close-range engagements, though, since the 20 mm cannons have a much longer reload, and they require turning the hull to aim, so avoid close-range engagements as much as possible.<br />
<br />
Because of the aft ammunition storage, opponents armed with 3 or 4-inch cannons should be the biggest priority, since a single hit with one of these guns anywhere near the ammunition storage is enough to detonate it. Artillery strikes, friendly or not, are also a major hazard for MGB-75. Keep away from capture points and narrow passageways where artillery is common, and the artillery strike warning appears, leave the area as soon as possible. Lastly, the ammunition storage is very susceptible to aircraft attacks due to its location. Keep the AI gunners targeting aircraft, but don't solely rely on them. Instead, use them as a warning for any aircraft in the area, and manually shoot them down if necessary.<br />
<br />
=== Pros and cons ===<br />
<!-- ''Summarise and briefly evaluate the vehicle in terms of its characteristics and combat effectiveness. Mark its pros and cons in the bulleted list. Try not to use more than 6 points for each of the characteristics. Avoid using categorical definitions such as "bad", "good" and the like - use substitutions with softer forms such as "inadequate" and "effective".'' --><br />
<br />
'''Pros:'''<br />
* Powerful primary and secondary armaments<br />
<br />
'''Cons:'''<br />
* Blind spot directly in front when moving at high speeds<br />
* Long reloads for both primary and secondary armaments<br />
* Exposed ammunition storage <br />
<br />
== History ==<br />
<!-- ''Describe the history of the creation and combat usage of the ship in more detail than in the introduction. If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the ship and adding a block "/History" (example: <nowiki>https://wiki.warthunder.com/(Ship-name)/History</nowiki>) and add a link to it here using the <code>main</code> template. Be sure to reference text and sources by using <code><nowiki><ref></ref></nowiki></code>, as well as adding them at the end of the article with <code><nowiki><references /></nowiki></code>. This section may also include the ship's dev blog entry (if applicable) and the in-game encyclopedia description (under <code><nowiki>=== In-game description ===</nowiki></code>, also if applicable).'' --><br />
<br />
By early 1941, many of the British Power Boat Company (BPB) 60-foot, 63-foot, and 70-foot boats had been completed and were in Royal Navy Coastal Forces service, and already, their weaknesses began to show. The boats were small and lightly constructed, and the living conditions for the crew were cramped. Additionally, because of their underpowered engines, these boats were quite slow. While their low top speed was certainly acceptable for anti-submarine work, as they were initially built to perform, it was insufficient by 1941 as most of the boats had been converted into motor gun boats by this point. Thus, in 1941, BPB began plans for a successor to their previous lines of boats.<br />
<br />
The new design had a length of 71 ft 9 in (21.9 m), a beam of 20 ft 7 in (6.3 m), and a draught of about 4 f 3 in (1.3 m). It was powered by three Packard petrol engines driving three shafts, allowing it to achieve a top speed of 42 knots. After their introduction, the BPB 71'9" boats formed the bulk of Coastal Forces' MGB fleet until the introduction of the larger and more heavily-armed Fairmile D boats. Later in the war, many BPB 71'9" boats would receive a pair a 18-inch torpedo tubes and refitted for motor torpedo boat duty. In total, 96 boats were built:<br />
<br />
* MGBs 74-81: Ordered in November 1940 as MA/SBs, all were completed in 1942 as MGBs. Any surviving boats by September 1943 were refitted with a pair of 18-inch torpedo tubes and redesignated as MTBs 412-416. Any of the boats that survived the war were disposed of in October 1945.<br />
* MGBs 107-119: Ordered in November 1940 as MA/SBs, the order was canceled in March 1941. They were subsequently reordered in February 1942, with all completed in 1942 as MGBs. Any surviving boats by September 1943 were refitted with a pair of 18-inch torpedo tubes and redesignated as MTBs 417-418 and 430-438. Any of the boats that survived the war were disposed of either in March 1945 or in October 1945. <br />
* MGBs 120-130: Ordered in May 1942 as MGBs, all werecompleted in 1943. All boats were refitted in September 1943 with a pair of 18-inch torpedo tubes and redesignated as MTBs 439-449. Most of the boats that survived the war were disposed of in October 1945.<br />
* MTBs 450-489: Ordered as MGBs, all were completed between 1943-1945 as MTBs. Any of the boats that survived the war were disposed of at various dates or used as controlled targets.<br />
* MTBs 490-500: ordered as MTBs, all were completed between 1944-1945. Any of the boats that survived the war were disposed of at various dates or used as controlled targets, with the exception of MTB-496 and MTB-498. These were refurbished in 1949 and renumbered MTB-1596 and MTB-1598 to form the Proud-class along with MTBs 1505-1509, MTB-1519, and MTB-1522. They were given the names "Proud Patriot" and "Proud Patroller", respectively. The "Proud" class boats were all sold in June 1958.<br />
* MTBs 501-509: ordered as MTBs, all completed in 1945. All of the boats survived the war. MTBs 501-504 were sold or disposed of at various dates. MTBs 505-509 were refurbished in 1949 and renumbered MTBs 1505-1509 to form the Proud-class along with MTB-1596, MTB-1598, MTB-1519, and MTB-1522. They were given the names "Proud Fusilier", "Proud Grenadier", "Proud Guardsman", "Proud Highlander", and "Proud Knight", respectively. The Proud-class boats were all sold in June 1958.<br />
* MTBs 519-522: ordered as MGBs, all completed in 1946 as MTBs. With the exception of MTB-520, they were refurbished in 1949 and renumbered MTB-1519, MTB-1521, and MTB-1522. MTB-1519 and MTB-1522 formed the Proud-class along with MTBs 1505-1509, MTB-1596, and MTB-1598. They were given the names "Proud Lancer" and "Proud Legionary", respectively. The Proud-class boats were all sold in June 1958.<br />
<br />
MGB-75 was part of the original order placed in November 1940. She was ordered as a motor anti-submarine boat but was completed on 8th May 1942 as a motor gun boat. MGB-75 was commanded by the following:<br />
<br />
* T/Lt. L.G.R. Campbell, RNVR: October 1942 to February 1943<br />
* T/S.Lt. F.J. Head, RNVR: April 1943 to June 1943<br />
* T/S.Lt. W.G.L. Salmon, RNVR: From June 1944 onwards<br />
<br />
MGB-75 served as part of the 6th MGB Flotilla with HMS Beehive at Felixstowe through 1943. In September 1943, MGB-75 received her refit and was redesignated as MTB-413. Through 1944, MTB-413 served as part of the 1st MTB Flotilla at Portsmouth. MTB-413 survived the war and was disposed of in October 1945.<br />
<br />
== Media ==<br />
<!-- ''Excellent additions to the article would be video guides, screenshots from the game, and photos.'' --><br />
<br />
<div class="portale" align="center"><br />
{| class="catlist" frame="box" style="background: #efefef;" align="center"<br />
|<span style="white-space:nowrap;">[[File:GEN_LIVE_WT_1_HPL.jpg|510px|link=https://live.warthunder.com/feed/camouflages/?vehicleCountry=britain&vehicleType=ship&vehicleClass=gun_boat&vehicle=uk_71ft_mgb|]]</span> ||<br />
|-<br />
|}<br />
</div><br />
<br />
== See also ==<br />
<!-- ''Links to articles on the War Thunder Wiki that you think will be useful for the reader, for example:''<br />
* ''reference to the series of the ship;''<br />
* ''links to approximate analogues of other nations and research trees.'' --><br />
<br />
* {{Specs-Link|uk_fairmile_a_ml100}}<br />
* {{Specs-Link|uk_70ft_mgb}}<br />
* {{Specs-Link|uk_dark_class}}<br />
<br />
== External links ==<br />
<!-- ''Paste links to sources and external resources, such as:''<br />
* ''topic on the official game forum;''<br />
* ''encyclopedia page on the ship;''<br />
* ''other literature.'' --><br />
<br />
* [http://cfv.org.uk/research/boat/database Coastal Forces Veterans - Boat Database]<br />
* [https://www.unithistories.com/units_british/RN_CoastalForces.html#MGB%20Boats unithistories.com - Royal Navy Coastal Forces 1940-1945]<br />
* [http://www.naval-history.net/WW2BritishLosses3Coastal.htm naval-history.net - British vessels lost at sea in World War 2 - MGB, MTB, SGB, ML, etc] - originally published in ''British Vessels Lost at Sea, 1935-45'', His Majesty's Stationary Office, 1947<br />
* [http://www.navypedia.org/ships/uk/brit_c_f_mtb412.htm NAVYPEDIA - MTB412 motor torpedo boats (93, 1942 - 1946)]<br />
* [https://uboat.net/allies/warships/class.html?ID=673&navy=HMS uboat.net - BPB 72 feet-type class]<br />
* [https://www.yalumba.co.uk/Framesets/British%20Power%20Boat%20Co%20-%20Page%204,%20MGBs.html yalumba.co.uk - British Power Boat Co Page 4]<br />
* [http://www.coastal-forces.org.uk/boats.html Coastal Forces Heritage Trust - Boats]<br />
<br />
===Bibliography===<br />
<br />
* Konstam, Angus (2010). ''British Motor Gun Boat 1939–45''. Osprey Publishing Ltd. ISBN 978-1-84908-077-4.<br />
<br />
{{Britain boats}}<br />
{{Britain premium ships}}</div>U27474208https://old-wiki.warthunder.com/index.php?title=MGB-75&diff=104066MGB-752021-06-01T03:40:20Z<p>U27474208: /* Pros and cons */</p>
<hr />
<div>{{Specs-Card<br />
|code=uk_71ft_mgb<br />
|images={{Specs-Card-Image|GarageImage_{{PAGENAME}}.jpg}}<br />
}}<br />
<br />
== Description ==<br />
<!-- ''In the first part of the description, cover the history of the ship's creation and military application. In the second part, tell the reader about using this ship in the game. Add a screenshot: if a beginner player has a hard time remembering vehicles by name, a picture will help them identify the ship in question.'' --><br />
The '''{{Specs|name}}''' is a premium rank {{Specs|rank}} British motor gun boat {{Battle-rating}}. It was introduced in [[Update 1.91 "Night Vision"]]. Originally a rank I vessel, with the split of the naval tech trees in [[Update "New Power"]], {{PAGENAME}} was moved to rank II in the coastal fleet tech tree.<br />
<br />
== General info ==<br />
=== Survivability and armour ===<br />
{{Specs-Fleet-Armour}}<br />
<!-- ''Talk about the vehicle's armour. Note the most well-defended and most vulnerable zones, e.g. the ammo magazine. Evaluate the composition of components and assemblies responsible for movement and manoeuvrability. Evaluate the survivability of the primary and secondary armaments separately. Don't forget to mention the size of the crew, which plays an important role in fleet mechanics. Save tips on preserving survivability for the "Usage in battles" section. If necessary, use a graphical template to show the most well-protected or most vulnerable points in the armour.'' --><br />
<br />
MGB-75 has the following armour layout:<br />
<br />
* [[2pdr QF Mk.IIc (40 mm)|2pdr QF Mk.IIc]] gunshield: 12.7 mm hardened armour<br />
* [[20 mm/70 Oerlikon Mark V (20 mm)|20 mm/70 Oerlikon Mark V]] gunshield: 12.7 mm hardened armour<br />
* Hull: 40 mm, wood<br />
* Superstructure: 15 mm, wood<br />
<br />
[[File:MGB-75_internals.png|thumb|MGB-75 internals (starboard side).]]<br />
<br />
Like most coastal vessels, MGB-75 has no practical armour. The gunshields are largely superficial; while they may stop low-calibre machine guns, heavy machine guns and cannons will easily penetrate them at any range. The hull and superstructure are unarmoured and will not stop any sort of gunfire.<br />
<br />
The hull is split into three hull sections. Starting from the bow and working towards the stern, the first section starts at the bow and ends just in front of forward gun; the second ends after the bridge, forward of the engines; and the third ends at the stern. <br />
<br />
Any round with a large enough diameter and explosive mass can hull break MGB-75. In general, this is limited to HE rounds with a diameter greater than 4 inches (102 mm) and with an explosive mass greater than 1.5 kg. At MGB-75's battle rating, the only guns that can hull break her are:<br />
<br />
* the [[10.5 cm SK C/32 (105 mm)|10.5 cm SK C/32]], found on {{Specs-Link|germ_escort_typem1943}}; and<br />
* the [[8cwt QF Mk I (114 mm)|114 mm 8cwt QF Mk I]], found on {{Specs-Link|uk_dark_class}}. <br />
<br />
There are two ammunition storages. The first ammunition storage, which holds ammunition for the primary armament, is located in the hull above the waterline, below and slightly in front of the forward gun turret. The second ammunition storage, which holds ammunition for both the secondary and AA armament, is located above deck, in the superstructure in front of the aft gun turret. Destroying either will instantly destroy MGB-75. Since it is located in the superstructure, the second ammunition storage is particularly susceptible to detonation by random gunfire or artillery.<br />
<br />
MGB-75 has a crew complement of 12. With a stock crew, MGB-75 is knocked out when 8 crew are lost; with an aced crew, this is increased to 9. Overall, survivability is below-average. <br />
<br />
=== Mobility ===<br />
{{Specs-Fleet-Mobility}}<br />
<!-- ''Write about the ship's mobility. Evaluate its power and manoeuvrability, rudder rerouting speed, stopping speed at full tilt, with its maximum forward and reverse speed.'' --><br />
<br />
{{NavalMobility<br />
|SpeedForwardStockAB = 77<br />
|SpeedBackStockAB = 21<br />
|TurnTimeStockAB = 29.18<br />
|TurnSpeedStockAB = 43<br />
<br />
|TurnTimeSpadedAB = 19.63<br />
|TurnSpeedSpadedAB = 40<br />
<br />
|SpeedForwardStockRB = 67<br />
|SpeedBackStockRB = 19<br />
|TurnTimeStockRB = 32.40<br />
|TurnSpeedStockRB = 45<br />
<br />
|TurnTimeSpadedRB = 26.30<br />
|TurnSpeedSpadedRB = 43<br />
}}<br />
<br />
MGB-75 has a displacement of 51.5 tons.<br />
<br />
When moving forwards at high speeds, the bow will lift out of the water. This creates a blind spot where the 40 mm 2pdr QF Mk.IIc is unable to depress far enough to hit the waterline. This blindspot extends ~400 m in front of the boat and ~45° to either side.<br />
<br />
=== Modifications and economy ===<br />
{{Specs-Economy}}<br />
<br />
As a premium vehicle, all modifications are unlocked for free. <br />
<br />
== Armament ==<br />
{{Specs-Fleet-Armaments}}<br />
=== Primary armament ===<br />
{{Specs-Fleet-Primary}}<br />
<!-- ''Provide information about the characteristics of the primary armament. Evaluate their efficacy in battle based on their reload speed, ballistics and the capacity of their shells. Add a link to the main article about the weapon: <code><nowiki>{{main|Weapon name (calibre)}}</nowiki></code>. Broadly describe the ammunition available for the primary armament, and provide recommendations on how to use it and which ammunition to choose.'' --><br />
{{main|2pdr QF Mk.IIc (40 mm)}}<br />
<br />
The primary armament consists of a single 40 mm 2pdr QF Mk.IIc cannon mounted forwards in front of the bridge. Stock, the mount can traverse horizontally at a rate of 34°/s and vertically at a rate of 21°/s; with the "Primary Armament Targeting" modification installed, this is increased to 40°/s and 25°/s respectively. With a full ammunition load, there are 2,240 rounds of ammunition, or 40 magazines, available for the mount. The gun has a magazine capacity of 56 rounds and a cycle rate of fire of 200 rounds/min. With a stock crew, it can be reloaded in 7.8 seconds; with an aced crew, this is decreased to 6 seconds.<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="2" | Primary aramament guidance<br />
|-<br />
! Horizontal !! Vertical<br />
|-<br />
| ±180° || -5°/+70°<br />
|-<br />
|}<br />
<br />
There are three ammunition types available:<br />
<br />
* Universal: {{Annotation|HEF|High-explosive fragmentation}}/{{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|HEF|High-explosive fragmentation}}/{{Annotation|AP-T|Armour-piercing tracer}}<br />
* 40 mm HE: {{Annotation|HEF|High-explosive fragmentation}}/{{Annotation|HEF|High-explosive fragmentation}}/{{Annotation|HEF|High-explosive fragmentation}}/{{Annotation|AP-T|Armour-piercing tracer}}<br />
* 40 mm AP: {{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|HEF|High-explosive fragmentation}}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="7" | Penetration statistics<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| Universal || 60 || 57 || 50 || 43 || 38 || 34<br />
|-<br />
| 40 mm HE || 60 || 57 || 50 || 43 || 38 || 34<br />
|-<br />
| 40 mm AP || 60 || 57 || 50 || 43 || 38 || 34<br />
|-<br />
|}<br />
<br />
The best ammunition type is 40 mm HE, since it has the highest ratio of HE rounds to AP rounds, making it the most effective against both aircraft and the vast majority of surface targets. Take mostly 40 mm HE along with a several magazines of 40 mm AP for armoured targets.<br />
<br />
=== Secondary armament ===<br />
{{Specs-Fleet-Secondary}}<br />
<!-- ''Some ships are fitted with weapons of various calibres. Secondary armaments are defined as weapons chosen with the control <code>Select secondary weapon</code>. Evaluate the secondary armaments and give advice on how to use them. Describe the ammunition available for the secondary armament. Provide recommendations on how to use them and which ammunition to choose. Remember that any anti-air armament, even heavy calibre weapons, belong in the next section. If there is no secondary armament, remove this section.'' --><br />
{{main|20 mm/70 Oerlikon Mark V (20 mm)}}<br />
<br />
The secondary armament consists of two 20 mm/70 Oerlikon Mark V cannons in a twin mount aft. Stock, the mount can traverse horizontally at a rate of 51°/s and vertically at a rate of 43°/s; with the "Secondary Armament Targeting" modification installed, this is increased to 60°/s and 50°/s respectively. With a full ammunition load, there are 3,600 rounds of ammunition, or 60 magazines, available for the mount. Each gun has a magazine capacity of 60 rounds and a cycle rate of fire of 450 rounds/min, though the gun on the gunner's left side fires at a slightly faster rate, around 485 rounds/min. With a stock crew, the mount can be reloaded in 10.4 seconds; with an aced crew, this is decreased to 8 seconds.<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="2" | Secondary armament guidance<br />
|-<br />
! Horizontal !! Vertical<br />
|-<br />
| ±180° || -10°/+60°<br />
|-<br />
|}<br />
<br />
There are three ammunition types available:<br />
<br />
* Universal: {{Annotation|HEF-T|High-explosive fragmentation tracer}}/{{Annotation|HEF-I|High-explosive fragmentation incendiary}}/{{Annotation|AP-T|Armour-piercing tracer}}<br />
<br />
* 20 mm HE: {{Annotation|HEF-T|High-explosive fragmentation tracer}}/{{Annotation|HEF-I|High-explosive fragmentation incendiary}}/{{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|HEF-I|High-explosive fragmentation incendiary}}<br />
<br />
* 20 mm AP: {{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|HEF-I|High-explosive fragmentation incendiary}}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="7" | Penetration statistics<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| Universal || 35 || 33 || 26 || 21 || 18 || 15<br />
|-<br />
| 20 mm HE || 35 || 33 || 26 || 21 || 18 || 15<br />
|-<br />
| 20 mm AP || 35 || 33 || 26 || 21 || 18 || 15<br />
|-<br />
|}<br />
<br />
The best ammunition type is the 20 mm HE belt, since it has the highest ratio of HE rounds to AP rounds, making it the most effective against both aircraft and the vast majority of surface targets. The Universal belt is a direct downgrade to the 20 mm HE belt in terms of damage, and the 20 mm AP belt isn't really worth taking due to its relatively low armour penetration. To deal with armoured opponents, use the primary 40 mm 2pdr QF Mk.IIc instead. Take only 20 mm HE.<br />
<br />
=== Anti-aircraft armament ===<br />
{{Specs-Fleet-AA}}<br />
<!-- ''An important part of the ship's armament responsible for air defence. Anti-aircraft armament is defined by the weapon chosen with the control <code>Select anti-aircraft weapons</code>. Talk about the ship's anti-air cannons and machine guns, the number of guns and their positions, their effective range, and about their overall effectiveness – including against surface targets. If there are no anti-aircraft armaments, remove this section.'' --><br />
{{main|Lewis 1916 (7.72 mm)}}<br />
<br />
The anti-aircraft armament consists of four 7.72 mm Lewis 1916 machine guns in two twin mounts, one on either side of the bridge. A total of 7,760 rounds of ammunition, or 80 magazines, are carried for both mounts, 1,940 rounds, or 20 magazines, per gun. Each gun has a magazine capacity of 97 rounds and a cycle rate of fire of 550 rounds/min. With a stock crew, the mount can be reloaded in 18.2 seconds; with an aced crew, this is decreased to 14 seconds. Horizontal and vertical traverse rates are not stated in-game. <br />
<br />
{{Notice|Turrets are named sequentially, clockwise, starting at the bow}}<br />
<br />
{| class="wikitable" style="text-align:center" width="65%"<br />
! colspan="8" | Anti-aircraft armament guidance<br />
|-<br />
! colspan="2" rowspan="1" | No.1 Turret (starboard)<br />
! colspan="2" rowspan="1" | No.2 Turret (port)<br />
|-<br />
! Horizontal !! Vertical !! Horizontal !! Vertical<br />
|-<br />
| -45°/+170° || -5°/+60° || -170°/+45° || -5°/+60°<br />
|-<br />
|}<br />
<br />
Ammunition types cannot be selected for the anti-aircraft armament on MGB-75. Belt composition and penetration statistics are not stated in-game.<br />
<br />
=== Additional armament ===<br />
{{Specs-Fleet-Additional}}<br />
<!-- ''Describe the available additional armaments of the ship: depth charges, mines, torpedoes. Talk about their positions, available ammunition and launch features such as dead zones of torpedoes. If there is no additional armament, remove this section.'' --><br />
{{main|Mk.VII depth charge}}<br />
<br />
MGB-75 has two possible loadouts:<br />
<br />
# Without load<br />
# 2x Mk.VII depth charge<br />
<br />
'''Depth charges'''<br />
<br />
[[File:MGB-75_DCs.png|thumb|Mk.VII depth charges numbered according to their drop order (click to expand).]]<br />
<br />
The Mk.VII depth charges are carried amidships, one on either side of the bridge next to the twin 7.72 mm Lewis 1916 machine guns. They are dropped one at a time in the following order:<br />
<br />
# Starboard<br />
# Port<br />
<br />
Before spawning, the detonation time delay can be set anywhere between 3 seconds and 10 seconds.<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="7" | Depth charge characteristics<br />
|-<br />
! Mass (kg)<br />
! Explosive type<br />
! Explosive mass (kg)<br />
! TNT equivalent (kg)<br />
! HE armour penetration (mm)<br />
! Armoured vehicle destruction radius (m)<br />
! Fragment dispersion radius (m)<br />
|-<br />
| 196 || TNT || 130 || 130 || 101 || 8 || 122<br />
|-<br />
|}<br />
<br />
There is almost no practical reason to use depth charges on any naval vessel in the game. Although they usually result in a one-hit kill if used properly, they are extremely situational, requiring the player to close to point-blank ranges to even use them. In almost every case, anytime a depth charge could be used, the guns can be used instead to greater effect. In fact, depth charges tend to actually be a liability in battle, since they essentially act as exposed ammo racks before they're dropped. They can be shot at, and if destroyed, they have a chance to detonate, instantly destroying the boat.<br />
<br />
Despite this, some success can be had in dropping them either next to, or in front of a large, slow target. If dropping them next to the target, remember the depth charge drop order, since it's most likely that only the depth charges dropped on the side closest to the enemy will deal any damage. If dropping in front of the target, rush in from the sides as quickly as possible and drop them all at once directly in front of the target. For both cases, set the depth charge time delay to the minimum 3 seconds, since any higher time delay will only allow the depth charge to sink further away from the target, giving them more time to move out of the way. Again, using depth charges is extremely situational, and they will only be a liability the vast majority of the time, so take them at your own discretion.<br />
<br />
== Usage in battles ==<br />
<!-- ''Describe the technique of using this ship, the characteristics of her use in a team and tips on strategy. Abstain from writing an entire guide – don't try to provide a single point of view, but give the reader food for thought. Talk about the most dangerous opponents for this vehicle and provide recommendations on fighting them. If necessary, note the specifics of playing with this vehicle in various modes (AB, RB, SB).'' --><br />
<br />
MGB-75 is plagued by two huge weaknesses that limit her offensive and defensive capabilities. The first of these is that the hull planes when moving at high speeds, lifting the bow out of the water. This normally isn't an issue for most boats, but on MGB-75, it creates a huge blindspot extending ~400 m in front of the boat and ~45° to either side where the primary 40 mm 2pdr QF Mk.IIc is unable to depress far enough to hit the waterline. Because of this, the 40 mm cannon is completely unable to hit opponents within ~250-300 m, depending on the target's height. <br />
<br />
The second weakness is the aft ammunition storage, which is located above deck in the superstructure. Normally, ammunition detonations aren't much of a factor in a coastal vessel's effectiveness. This is because ammunition storages are typically located in the hull and placed a good enough distance away from the outside of the boat. The internal space afts like a buffer, with the hull preventing any HE rounds from reaching the ammunition storage. However, on MGB-75, there is no internal space buffer for the aft ammunition storage, making ammunition detonations very common. Unfortunately, since this ammo rack is tied to both the secondary and anti-aircraft armament, and since the ammunition load for the anti-aircraft armament cannot be selected, there is no easy way to remove this ammunition storage.<br />
<br />
To best make use of MGB-75, both of these weaknesses need to be taken into account. Because of the blindspot, stick to mid-range or long-range engagements. Being at long range also has the added benefit of making it more defficult for enemies to specifically target the aft ammunition storage, but as with most vessels, it's best to not be hit in the first place, so stay on the move and make use of cover wherever possible. If the need to fight at close-range arises, switch to the secondary 20 mm/70 Oerlikon Mark V cannons. These guns are mounted aft, so they cannot target anything in a ~45° arc forwards, ~75° when moving. However, unlike the 40 mm cannon, the 20 mm cannons can at least target close-range opponents at all speeds. MGB-75 is much weaker in close-range engagements, though, since the 20 mm cannons have a much longer reload, and they require turning the hull to aim, so avoid close-range engagements as much as possible.<br />
<br />
Because of the aft ammunition storage, opponents armed with 3 or 4-inch cannons should be the biggest priority, since a single hit with one of these guns anywhere near the ammunition storage is enough to detonate it. Artillery strikes, friendly or not, are also a major hazard for MGB-75. Keep away from capture points and narrow passageways where artillery is common, and the artillery strike warning appears, leave the area as soon as possible. Lastly, the ammunition storage is very susceptible to aircraft attacks due to its location. Keep the AI gunners targeting aircraft, but don't solely rely on them. Instead, use them as a warning for any aircraft in the area, and manually shoot them down if necessary.<br />
<br />
=== Pros and cons ===<br />
<!-- ''Summarise and briefly evaluate the vehicle in terms of its characteristics and combat effectiveness. Mark its pros and cons in the bulleted list. Try not to use more than 6 points for each of the characteristics. Avoid using categorical definitions such as "bad", "good" and the like - use substitutions with softer forms such as "inadequate" and "effective".'' --><br />
<br />
'''Pros:'''<br />
* Powerful primary and secondary armaments<br />
<br />
'''Cons:'''<br />
* Blind spot directly in front when moving at high speeds<br />
* Long reloads for both primary and secondary armaments<br />
* Exposed ammunition storage <br />
<br />
== History ==<br />
<!-- ''Describe the history of the creation and combat usage of the ship in more detail than in the introduction. If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the ship and adding a block "/History" (example: <nowiki>https://wiki.warthunder.com/(Ship-name)/History</nowiki>) and add a link to it here using the <code>main</code> template. Be sure to reference text and sources by using <code><nowiki><ref></ref></nowiki></code>, as well as adding them at the end of the article with <code><nowiki><references /></nowiki></code>. This section may also include the ship's dev blog entry (if applicable) and the in-game encyclopedia description (under <code><nowiki>=== In-game description ===</nowiki></code>, also if applicable).'' --><br />
<br />
By early 1941, many of the British Power Boat Company (BPB) 60-foot, 63-foot, and 70-foot boats had been completed and were in Royal Navy Coastal Forces service, and already, their weaknesses began to show. The boats were small and lightly constructed, and the living condition for the crew was cramped. Additionally, because of their underpowered engines, they were slow. While their low top speed was certainly acceptable for the anti-submarine work, as they were initially built to perform, it was insufficient by 1941 as most of the boats had been converted into motor gun boats by this point. Thus, in 1941, BPB began designing a larger, faster boat.<br />
<br />
BPB's new design had a length of 71 feet 9 inches (21.9 m), a beam of 20 feet 7 inches (6.3 m), and a draught of about 4 feet 3 inches (1.3 m). It was powered by three Packard petrol engines driving three shafts which allowed it to achieve a top speed of 42 knots. The BPB 71'9" boats formed the bulk of Coastal Forces' MGB fleet until the introduction of the larger and more heavily-armed Fairmile D boats. In total, 96 boats were built:<br />
<br />
* MGBs 74-81: ordered in November 1940 as MA/SBs, all completed in 1942 as MGBs. Any surviving boats by September 1943 were refitted with a pair of 18-inch torpedo tubes and redesignated as MTBs 412-416. Any of the boats that survived the war were disposed of in October 1945.<br />
* MGBs 107-119: ordered in November 1940 as MA/SBs, canceled in March 1941, and reordered in February 1942, all completed in 1942 as MGBs. Any surviving boats by September 1943 were refitted with a pair of 18-inch torpedo tubes and redesignated as MTBs 417-418 and 430-438. Any of the boats that survived the war were disposed of either in March 1945 or in October 1945. Their fates are as follows:<br />
* MGBs 120-130: ordered in May 1942 as MGBs, all completed in 1943. All boats were refitted in September 1943 with a pair of 18-inch torpedo tubes and redesignated as MTBs 439-449. Most of the boats that survived the war were disposed of in October 1945.<br />
* MTBs 450-489: ordered as MGBs, all completed between 1943-1945 as MTBs. Any of the boats that survived the war were disposed of at various dates or used as controlled targets.<br />
* MTBs 490-500: ordered as MTBs, all completed between 1944-1945. Any of the boats that survived the war were disposed of at various dates or used as controlled targets, with the exception of MTB-496 and MTB-498. These were refurbished in 1949 and renumbered MTB-1596 and MTB-1598 to form the "Proud" class along with MTBs 1505-1509, MTB-1519, and MTB-1522. They were given the names "Proud Patriot" and "Proud Patroller", respectively. The "Proud" class boats were all sold in June 1958.<br />
* MTBs 501-509: ordered as MTBs, all completed in 1945. All of the bats survived the war. MTBs 501-504 were sold or disposed of at various dates. MTBs 505-509 were refurbished in 1949 and renumbered MTBs 1505-1509 to form the "Proud" class along with MTB-1596, MTB-1598, MTB-1519, and MTB-1522. They were given the names "Proud Fusilier", "Proud Grenadier", "Proud Guardsman", "Proud Highlander", and "Proud Knight", respectively. The "Proud" class boats were all sold in June 1958.<br />
* MTBs 519-522: ordered as MGBs, all completed in 1946 as MTBs. With the exception of MTB-520, they were refurbished in 1949 and renumbered MTB-1519, MTB-1521, and MTB-1522. MTB-1519 and MTB-1522 formed the "Proud" class along with MTBs 1505-1509, MTB-1596, and MTB-1598. They were given the names "Proud Lancer" and "Proud Legionary", respectively. The "Proud" class boats were all sold in June 1958.<br />
<br />
MGB-75 was part of the original order placed in November 1940. She was ordered as a motor anti-submarine boat but was completed on 8th May 1942 as a motor gun boat. MGB-75 was commanded by the following:<br />
<br />
* T/Lt. L.G.R. Campbell, RNVR: October 1942 to February 1943<br />
* T/S.Lt. F.J. Head, RNVR: April 1943 to June 1943<br />
* T/S.Lt. W.G.L. Salmon, RNVR: From June 1944 onwards<br />
<br />
MGB-75 served as part of the 6th MGB Flotilla with HMS Beehive at Felixstowe through 1943. In September 1943, MGB-75 received her refit and was redesignated as MTB-413. Through 1944, MTB-413 served as part of the 1st MTB Flotilla at Portsmouth. MTB-413 survived the war and was disposed of in October 1945.<br />
<br />
== Media ==<br />
<!-- ''Excellent additions to the article would be video guides, screenshots from the game, and photos.'' --><br />
<br />
<div class="portale" align="center"><br />
{| class="catlist" frame="box" style="background: #efefef;" align="center"<br />
|<span style="white-space:nowrap;">[[File:GEN_LIVE_WT_1_HPL.jpg|510px|link=https://live.warthunder.com/feed/camouflages/?vehicleCountry=britain&vehicleType=ship&vehicleClass=gun_boat&vehicle=uk_71ft_mgb|]]</span> ||<br />
|-<br />
|}<br />
</div><br />
<br />
== See also ==<br />
<!-- ''Links to articles on the War Thunder Wiki that you think will be useful for the reader, for example:''<br />
* ''reference to the series of the ship;''<br />
* ''links to approximate analogues of other nations and research trees.'' --><br />
<br />
* {{Specs-Link|uk_fairmile_a_ml100}}<br />
* {{Specs-Link|uk_70ft_mgb}}<br />
* {{Specs-Link|uk_dark_class}}<br />
<br />
== External links ==<br />
<!-- ''Paste links to sources and external resources, such as:''<br />
* ''topic on the official game forum;''<br />
* ''encyclopedia page on the ship;''<br />
* ''other literature.'' --><br />
<br />
* [http://cfv.org.uk/research/boat/database Coastal Forces Veterans - Boat Database]<br />
* [https://www.unithistories.com/units_british/RN_CoastalForces.html#MGB%20Boats unithistories.com - Royal Navy Coastal Forces 1940-1945]<br />
* [http://www.naval-history.net/WW2BritishLosses3Coastal.htm naval-history.net - British vessels lost at sea in World War 2 - MGB, MTB, SGB, ML, etc] - originally published in ''British Vessels Lost at Sea, 1935-45'', His Majesty's Stationary Office, 1947<br />
* [http://www.navypedia.org/ships/uk/brit_c_f_mtb412.htm NAVYPEDIA - MTB412 motor torpedo boats (93, 1942 - 1946)]<br />
* [https://uboat.net/allies/warships/class.html?ID=673&navy=HMS uboat.net - BPB 72 feet-type class]<br />
* [https://www.yalumba.co.uk/Framesets/British%20Power%20Boat%20Co%20-%20Page%204,%20MGBs.html yalumba.co.uk - British Power Boat Co Page 4]<br />
* [http://www.coastal-forces.org.uk/boats.html Coastal Forces Heritage Trust - Boats]<br />
<br />
===Bibliography===<br />
<br />
* Konstam, Angus (2010). ''British Motor Gun Boat 1939–45''. Osprey Publishing Ltd. ISBN 978-1-84908-077-4.<br />
<br />
{{Britain boats}}<br />
{{Britain premium ships}}</div>U27474208https://old-wiki.warthunder.com/index.php?title=MGB-75&diff=104065MGB-752021-06-01T03:33:23Z<p>U27474208: /* Usage in battles */ Complete rewrite; removed Ammunition Choices and Depth Charge sections</p>
<hr />
<div>{{Specs-Card<br />
|code=uk_71ft_mgb<br />
|images={{Specs-Card-Image|GarageImage_{{PAGENAME}}.jpg}}<br />
}}<br />
<br />
== Description ==<br />
<!-- ''In the first part of the description, cover the history of the ship's creation and military application. In the second part, tell the reader about using this ship in the game. Add a screenshot: if a beginner player has a hard time remembering vehicles by name, a picture will help them identify the ship in question.'' --><br />
The '''{{Specs|name}}''' is a premium rank {{Specs|rank}} British motor gun boat {{Battle-rating}}. It was introduced in [[Update 1.91 "Night Vision"]]. Originally a rank I vessel, with the split of the naval tech trees in [[Update "New Power"]], {{PAGENAME}} was moved to rank II in the coastal fleet tech tree.<br />
<br />
== General info ==<br />
=== Survivability and armour ===<br />
{{Specs-Fleet-Armour}}<br />
<!-- ''Talk about the vehicle's armour. Note the most well-defended and most vulnerable zones, e.g. the ammo magazine. Evaluate the composition of components and assemblies responsible for movement and manoeuvrability. Evaluate the survivability of the primary and secondary armaments separately. Don't forget to mention the size of the crew, which plays an important role in fleet mechanics. Save tips on preserving survivability for the "Usage in battles" section. If necessary, use a graphical template to show the most well-protected or most vulnerable points in the armour.'' --><br />
<br />
MGB-75 has the following armour layout:<br />
<br />
* [[2pdr QF Mk.IIc (40 mm)|2pdr QF Mk.IIc]] gunshield: 12.7 mm hardened armour<br />
* [[20 mm/70 Oerlikon Mark V (20 mm)|20 mm/70 Oerlikon Mark V]] gunshield: 12.7 mm hardened armour<br />
* Hull: 40 mm, wood<br />
* Superstructure: 15 mm, wood<br />
<br />
[[File:MGB-75_internals.png|thumb|MGB-75 internals (starboard side).]]<br />
<br />
Like most coastal vessels, MGB-75 has no practical armour. The gunshields are largely superficial; while they may stop low-calibre machine guns, heavy machine guns and cannons will easily penetrate them at any range. The hull and superstructure are unarmoured and will not stop any sort of gunfire.<br />
<br />
The hull is split into three hull sections. Starting from the bow and working towards the stern, the first section starts at the bow and ends just in front of forward gun; the second ends after the bridge, forward of the engines; and the third ends at the stern. <br />
<br />
Any round with a large enough diameter and explosive mass can hull break MGB-75. In general, this is limited to HE rounds with a diameter greater than 4 inches (102 mm) and with an explosive mass greater than 1.5 kg. At MGB-75's battle rating, the only guns that can hull break her are:<br />
<br />
* the [[10.5 cm SK C/32 (105 mm)|10.5 cm SK C/32]], found on {{Specs-Link|germ_escort_typem1943}}; and<br />
* the [[8cwt QF Mk I (114 mm)|114 mm 8cwt QF Mk I]], found on {{Specs-Link|uk_dark_class}}. <br />
<br />
There are two ammunition storages. The first ammunition storage, which holds ammunition for the primary armament, is located in the hull above the waterline, below and slightly in front of the forward gun turret. The second ammunition storage, which holds ammunition for both the secondary and AA armament, is located above deck, in the superstructure in front of the aft gun turret. Destroying either will instantly destroy MGB-75. Since it is located in the superstructure, the second ammunition storage is particularly susceptible to detonation by random gunfire or artillery.<br />
<br />
MGB-75 has a crew complement of 12. With a stock crew, MGB-75 is knocked out when 8 crew are lost; with an aced crew, this is increased to 9. Overall, survivability is below-average. <br />
<br />
=== Mobility ===<br />
{{Specs-Fleet-Mobility}}<br />
<!-- ''Write about the ship's mobility. Evaluate its power and manoeuvrability, rudder rerouting speed, stopping speed at full tilt, with its maximum forward and reverse speed.'' --><br />
<br />
{{NavalMobility<br />
|SpeedForwardStockAB = 77<br />
|SpeedBackStockAB = 21<br />
|TurnTimeStockAB = 29.18<br />
|TurnSpeedStockAB = 43<br />
<br />
|TurnTimeSpadedAB = 19.63<br />
|TurnSpeedSpadedAB = 40<br />
<br />
|SpeedForwardStockRB = 67<br />
|SpeedBackStockRB = 19<br />
|TurnTimeStockRB = 32.40<br />
|TurnSpeedStockRB = 45<br />
<br />
|TurnTimeSpadedRB = 26.30<br />
|TurnSpeedSpadedRB = 43<br />
}}<br />
<br />
MGB-75 has a displacement of 51.5 tons.<br />
<br />
When moving forwards at high speeds, the bow will lift out of the water. This creates a blind spot where the 40 mm 2pdr QF Mk.IIc is unable to depress far enough to hit the waterline. This blindspot extends ~400 m in front of the boat and ~45° to either side.<br />
<br />
=== Modifications and economy ===<br />
{{Specs-Economy}}<br />
<br />
As a premium vehicle, all modifications are unlocked for free. <br />
<br />
== Armament ==<br />
{{Specs-Fleet-Armaments}}<br />
=== Primary armament ===<br />
{{Specs-Fleet-Primary}}<br />
<!-- ''Provide information about the characteristics of the primary armament. Evaluate their efficacy in battle based on their reload speed, ballistics and the capacity of their shells. Add a link to the main article about the weapon: <code><nowiki>{{main|Weapon name (calibre)}}</nowiki></code>. Broadly describe the ammunition available for the primary armament, and provide recommendations on how to use it and which ammunition to choose.'' --><br />
{{main|2pdr QF Mk.IIc (40 mm)}}<br />
<br />
The primary armament consists of a single 40 mm 2pdr QF Mk.IIc cannon mounted forwards in front of the bridge. Stock, the mount can traverse horizontally at a rate of 34°/s and vertically at a rate of 21°/s; with the "Primary Armament Targeting" modification installed, this is increased to 40°/s and 25°/s respectively. With a full ammunition load, there are 2,240 rounds of ammunition, or 40 magazines, available for the mount. The gun has a magazine capacity of 56 rounds and a cycle rate of fire of 200 rounds/min. With a stock crew, it can be reloaded in 7.8 seconds; with an aced crew, this is decreased to 6 seconds.<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="2" | Primary aramament guidance<br />
|-<br />
! Horizontal !! Vertical<br />
|-<br />
| ±180° || -5°/+70°<br />
|-<br />
|}<br />
<br />
There are three ammunition types available:<br />
<br />
* Universal: {{Annotation|HEF|High-explosive fragmentation}}/{{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|HEF|High-explosive fragmentation}}/{{Annotation|AP-T|Armour-piercing tracer}}<br />
* 40 mm HE: {{Annotation|HEF|High-explosive fragmentation}}/{{Annotation|HEF|High-explosive fragmentation}}/{{Annotation|HEF|High-explosive fragmentation}}/{{Annotation|AP-T|Armour-piercing tracer}}<br />
* 40 mm AP: {{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|HEF|High-explosive fragmentation}}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="7" | Penetration statistics<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| Universal || 60 || 57 || 50 || 43 || 38 || 34<br />
|-<br />
| 40 mm HE || 60 || 57 || 50 || 43 || 38 || 34<br />
|-<br />
| 40 mm AP || 60 || 57 || 50 || 43 || 38 || 34<br />
|-<br />
|}<br />
<br />
The best ammunition type is 40 mm HE, since it has the highest ratio of HE rounds to AP rounds, making it the most effective against both aircraft and the vast majority of surface targets. Take mostly 40 mm HE along with a several magazines of 40 mm AP for armoured targets.<br />
<br />
=== Secondary armament ===<br />
{{Specs-Fleet-Secondary}}<br />
<!-- ''Some ships are fitted with weapons of various calibres. Secondary armaments are defined as weapons chosen with the control <code>Select secondary weapon</code>. Evaluate the secondary armaments and give advice on how to use them. Describe the ammunition available for the secondary armament. Provide recommendations on how to use them and which ammunition to choose. Remember that any anti-air armament, even heavy calibre weapons, belong in the next section. If there is no secondary armament, remove this section.'' --><br />
{{main|20 mm/70 Oerlikon Mark V (20 mm)}}<br />
<br />
The secondary armament consists of two 20 mm/70 Oerlikon Mark V cannons in a twin mount aft. Stock, the mount can traverse horizontally at a rate of 51°/s and vertically at a rate of 43°/s; with the "Secondary Armament Targeting" modification installed, this is increased to 60°/s and 50°/s respectively. With a full ammunition load, there are 3,600 rounds of ammunition, or 60 magazines, available for the mount. Each gun has a magazine capacity of 60 rounds and a cycle rate of fire of 450 rounds/min, though the gun on the gunner's left side fires at a slightly faster rate, around 485 rounds/min. With a stock crew, the mount can be reloaded in 10.4 seconds; with an aced crew, this is decreased to 8 seconds.<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="2" | Secondary armament guidance<br />
|-<br />
! Horizontal !! Vertical<br />
|-<br />
| ±180° || -10°/+60°<br />
|-<br />
|}<br />
<br />
There are three ammunition types available:<br />
<br />
* Universal: {{Annotation|HEF-T|High-explosive fragmentation tracer}}/{{Annotation|HEF-I|High-explosive fragmentation incendiary}}/{{Annotation|AP-T|Armour-piercing tracer}}<br />
<br />
* 20 mm HE: {{Annotation|HEF-T|High-explosive fragmentation tracer}}/{{Annotation|HEF-I|High-explosive fragmentation incendiary}}/{{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|HEF-I|High-explosive fragmentation incendiary}}<br />
<br />
* 20 mm AP: {{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|HEF-I|High-explosive fragmentation incendiary}}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="7" | Penetration statistics<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| Universal || 35 || 33 || 26 || 21 || 18 || 15<br />
|-<br />
| 20 mm HE || 35 || 33 || 26 || 21 || 18 || 15<br />
|-<br />
| 20 mm AP || 35 || 33 || 26 || 21 || 18 || 15<br />
|-<br />
|}<br />
<br />
The best ammunition type is the 20 mm HE belt, since it has the highest ratio of HE rounds to AP rounds, making it the most effective against both aircraft and the vast majority of surface targets. The Universal belt is a direct downgrade to the 20 mm HE belt in terms of damage, and the 20 mm AP belt isn't really worth taking due to its relatively low armour penetration. To deal with armoured opponents, use the primary 40 mm 2pdr QF Mk.IIc instead. Take only 20 mm HE.<br />
<br />
=== Anti-aircraft armament ===<br />
{{Specs-Fleet-AA}}<br />
<!-- ''An important part of the ship's armament responsible for air defence. Anti-aircraft armament is defined by the weapon chosen with the control <code>Select anti-aircraft weapons</code>. Talk about the ship's anti-air cannons and machine guns, the number of guns and their positions, their effective range, and about their overall effectiveness – including against surface targets. If there are no anti-aircraft armaments, remove this section.'' --><br />
{{main|Lewis 1916 (7.72 mm)}}<br />
<br />
The anti-aircraft armament consists of four 7.72 mm Lewis 1916 machine guns in two twin mounts, one on either side of the bridge. A total of 7,760 rounds of ammunition, or 80 magazines, are carried for both mounts, 1,940 rounds, or 20 magazines, per gun. Each gun has a magazine capacity of 97 rounds and a cycle rate of fire of 550 rounds/min. With a stock crew, the mount can be reloaded in 18.2 seconds; with an aced crew, this is decreased to 14 seconds. Horizontal and vertical traverse rates are not stated in-game. <br />
<br />
{{Notice|Turrets are named sequentially, clockwise, starting at the bow}}<br />
<br />
{| class="wikitable" style="text-align:center" width="65%"<br />
! colspan="8" | Anti-aircraft armament guidance<br />
|-<br />
! colspan="2" rowspan="1" | No.1 Turret (starboard)<br />
! colspan="2" rowspan="1" | No.2 Turret (port)<br />
|-<br />
! Horizontal !! Vertical !! Horizontal !! Vertical<br />
|-<br />
| -45°/+170° || -5°/+60° || -170°/+45° || -5°/+60°<br />
|-<br />
|}<br />
<br />
Ammunition types cannot be selected for the anti-aircraft armament on MGB-75. Belt composition and penetration statistics are not stated in-game.<br />
<br />
=== Additional armament ===<br />
{{Specs-Fleet-Additional}}<br />
<!-- ''Describe the available additional armaments of the ship: depth charges, mines, torpedoes. Talk about their positions, available ammunition and launch features such as dead zones of torpedoes. If there is no additional armament, remove this section.'' --><br />
{{main|Mk.VII depth charge}}<br />
<br />
MGB-75 has two possible loadouts:<br />
<br />
# Without load<br />
# 2x Mk.VII depth charge<br />
<br />
'''Depth charges'''<br />
<br />
[[File:MGB-75_DCs.png|thumb|Mk.VII depth charges numbered according to their drop order (click to expand).]]<br />
<br />
The Mk.VII depth charges are carried amidships, one on either side of the bridge next to the twin 7.72 mm Lewis 1916 machine guns. They are dropped one at a time in the following order:<br />
<br />
# Starboard<br />
# Port<br />
<br />
Before spawning, the detonation time delay can be set anywhere between 3 seconds and 10 seconds.<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="7" | Depth charge characteristics<br />
|-<br />
! Mass (kg)<br />
! Explosive type<br />
! Explosive mass (kg)<br />
! TNT equivalent (kg)<br />
! HE armour penetration (mm)<br />
! Armoured vehicle destruction radius (m)<br />
! Fragment dispersion radius (m)<br />
|-<br />
| 196 || TNT || 130 || 130 || 101 || 8 || 122<br />
|-<br />
|}<br />
<br />
There is almost no practical reason to use depth charges on any naval vessel in the game. Although they usually result in a one-hit kill if used properly, they are extremely situational, requiring the player to close to point-blank ranges to even use them. In almost every case, anytime a depth charge could be used, the guns can be used instead to greater effect. In fact, depth charges tend to actually be a liability in battle, since they essentially act as exposed ammo racks before they're dropped. They can be shot at, and if destroyed, they have a chance to detonate, instantly destroying the boat.<br />
<br />
Despite this, some success can be had in dropping them either next to, or in front of a large, slow target. If dropping them next to the target, remember the depth charge drop order, since it's most likely that only the depth charges dropped on the side closest to the enemy will deal any damage. If dropping in front of the target, rush in from the sides as quickly as possible and drop them all at once directly in front of the target. For both cases, set the depth charge time delay to the minimum 3 seconds, since any higher time delay will only allow the depth charge to sink further away from the target, giving them more time to move out of the way. Again, using depth charges is extremely situational, and they will only be a liability the vast majority of the time, so take them at your own discretion.<br />
<br />
== Usage in battles ==<br />
<!-- ''Describe the technique of using this ship, the characteristics of her use in a team and tips on strategy. Abstain from writing an entire guide – don't try to provide a single point of view, but give the reader food for thought. Talk about the most dangerous opponents for this vehicle and provide recommendations on fighting them. If necessary, note the specifics of playing with this vehicle in various modes (AB, RB, SB).'' --><br />
<br />
MGB-75 is plagued by two huge weaknesses that limit her offensive and defensive capabilities. The first of these is that the hull planes when moving at high speeds, lifting the bow out of the water. This normally isn't an issue for most boats, but on MGB-75, it creates a huge blindspot extending ~400 m in front of the boat and ~45° to either side where the primary 40 mm 2pdr QF Mk.IIc is unable to depress far enough to hit the waterline. Because of this, the 40 mm cannon is completely unable to hit opponents within ~250-300 m, depending on the target's height. <br />
<br />
The second weakness is the aft ammunition storage, which is located above deck in the superstructure. Normally, ammunition detonations aren't much of a factor in a coastal vessel's effectiveness. This is because ammunition storages are typically located in the hull and placed a good enough distance away from the outside of the boat. The internal space afts like a buffer, with the hull preventing any HE rounds from reaching the ammunition storage. However, on MGB-75, there is no internal space buffer for the aft ammunition storage, making ammunition detonations very common. Unfortunately, since this ammo rack is tied to both the secondary and anti-aircraft armament, and since the ammunition load for the anti-aircraft armament cannot be selected, there is no easy way to remove this ammunition storage.<br />
<br />
To best make use of MGB-75, both of these weaknesses need to be taken into account. Because of the blindspot, stick to mid-range or long-range engagements. Being at long range also has the added benefit of making it more defficult for enemies to specifically target the aft ammunition storage, but as with most vessels, it's best to not be hit in the first place, so stay on the move and make use of cover wherever possible. If the need to fight at close-range arises, switch to the secondary 20 mm/70 Oerlikon Mark V cannons. These guns are mounted aft, so they cannot target anything in a ~45° arc forwards, ~75° when moving. However, unlike the 40 mm cannon, the 20 mm cannons can at least target close-range opponents at all speeds. MGB-75 is much weaker in close-range engagements, though, since the 20 mm cannons have a much longer reload, and they require turning the hull to aim, so avoid close-range engagements as much as possible.<br />
<br />
Because of the aft ammunition storage, opponents armed with 3 or 4-inch cannons should be the biggest priority, since a single hit with one of these guns anywhere near the ammunition storage is enough to detonate it. Artillery strikes, friendly or not, are also a major hazard for MGB-75. Keep away from capture points and narrow passageways where artillery is common, and the artillery strike warning appears, leave the area as soon as possible. Lastly, the ammunition storage is very susceptible to aircraft attacks due to its location. Keep the AI gunners targeting aircraft, but don't solely rely on them. Instead, use them as a warning for any aircraft in the area, and manually shoot them down if necessary.<br />
<br />
=== Pros and cons ===<br />
<!-- ''Summarise and briefly evaluate the vehicle in terms of its characteristics and combat effectiveness. Mark its pros and cons in the bulleted list. Try not to use more than 6 points for each of the characteristics. Avoid using categorical definitions such as "bad", "good" and the like - use substitutions with softer forms such as "inadequate" and "effective".'' --><br />
<br />
'''Pros:'''<br />
* Powerful primary and secondary armament<br />
* Both primary and secondary armament can rotate 360°<br />
* Secondary armament: very good elevation and traverse rates; large magazine capacity; good firing arcs<br />
<br />
'''Cons:'''<br />
* Blind spot directly in front when moving at high speeds<br />
* Primary armament: long reload; easily disabled<br />
* Anti-aircraft armament: long reload; can only elevate 60°; low damage output<br />
* Unstable firing platform in rough waters<br />
* Large ammo racks<br />
<br />
== History ==<br />
<!-- ''Describe the history of the creation and combat usage of the ship in more detail than in the introduction. If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the ship and adding a block "/History" (example: <nowiki>https://wiki.warthunder.com/(Ship-name)/History</nowiki>) and add a link to it here using the <code>main</code> template. Be sure to reference text and sources by using <code><nowiki><ref></ref></nowiki></code>, as well as adding them at the end of the article with <code><nowiki><references /></nowiki></code>. This section may also include the ship's dev blog entry (if applicable) and the in-game encyclopedia description (under <code><nowiki>=== In-game description ===</nowiki></code>, also if applicable).'' --><br />
<br />
By early 1941, many of the British Power Boat Company (BPB) 60-foot, 63-foot, and 70-foot boats had been completed and were in Royal Navy Coastal Forces service, and already, their weaknesses began to show. The boats were small and lightly constructed, and the living condition for the crew was cramped. Additionally, because of their underpowered engines, they were slow. While their low top speed was certainly acceptable for the anti-submarine work, as they were initially built to perform, it was insufficient by 1941 as most of the boats had been converted into motor gun boats by this point. Thus, in 1941, BPB began designing a larger, faster boat.<br />
<br />
BPB's new design had a length of 71 feet 9 inches (21.9 m), a beam of 20 feet 7 inches (6.3 m), and a draught of about 4 feet 3 inches (1.3 m). It was powered by three Packard petrol engines driving three shafts which allowed it to achieve a top speed of 42 knots. The BPB 71'9" boats formed the bulk of Coastal Forces' MGB fleet until the introduction of the larger and more heavily-armed Fairmile D boats. In total, 96 boats were built:<br />
<br />
* MGBs 74-81: ordered in November 1940 as MA/SBs, all completed in 1942 as MGBs. Any surviving boats by September 1943 were refitted with a pair of 18-inch torpedo tubes and redesignated as MTBs 412-416. Any of the boats that survived the war were disposed of in October 1945.<br />
* MGBs 107-119: ordered in November 1940 as MA/SBs, canceled in March 1941, and reordered in February 1942, all completed in 1942 as MGBs. Any surviving boats by September 1943 were refitted with a pair of 18-inch torpedo tubes and redesignated as MTBs 417-418 and 430-438. Any of the boats that survived the war were disposed of either in March 1945 or in October 1945. Their fates are as follows:<br />
* MGBs 120-130: ordered in May 1942 as MGBs, all completed in 1943. All boats were refitted in September 1943 with a pair of 18-inch torpedo tubes and redesignated as MTBs 439-449. Most of the boats that survived the war were disposed of in October 1945.<br />
* MTBs 450-489: ordered as MGBs, all completed between 1943-1945 as MTBs. Any of the boats that survived the war were disposed of at various dates or used as controlled targets.<br />
* MTBs 490-500: ordered as MTBs, all completed between 1944-1945. Any of the boats that survived the war were disposed of at various dates or used as controlled targets, with the exception of MTB-496 and MTB-498. These were refurbished in 1949 and renumbered MTB-1596 and MTB-1598 to form the "Proud" class along with MTBs 1505-1509, MTB-1519, and MTB-1522. They were given the names "Proud Patriot" and "Proud Patroller", respectively. The "Proud" class boats were all sold in June 1958.<br />
* MTBs 501-509: ordered as MTBs, all completed in 1945. All of the bats survived the war. MTBs 501-504 were sold or disposed of at various dates. MTBs 505-509 were refurbished in 1949 and renumbered MTBs 1505-1509 to form the "Proud" class along with MTB-1596, MTB-1598, MTB-1519, and MTB-1522. They were given the names "Proud Fusilier", "Proud Grenadier", "Proud Guardsman", "Proud Highlander", and "Proud Knight", respectively. The "Proud" class boats were all sold in June 1958.<br />
* MTBs 519-522: ordered as MGBs, all completed in 1946 as MTBs. With the exception of MTB-520, they were refurbished in 1949 and renumbered MTB-1519, MTB-1521, and MTB-1522. MTB-1519 and MTB-1522 formed the "Proud" class along with MTBs 1505-1509, MTB-1596, and MTB-1598. They were given the names "Proud Lancer" and "Proud Legionary", respectively. The "Proud" class boats were all sold in June 1958.<br />
<br />
MGB-75 was part of the original order placed in November 1940. She was ordered as a motor anti-submarine boat but was completed on 8th May 1942 as a motor gun boat. MGB-75 was commanded by the following:<br />
<br />
* T/Lt. L.G.R. Campbell, RNVR: October 1942 to February 1943<br />
* T/S.Lt. F.J. Head, RNVR: April 1943 to June 1943<br />
* T/S.Lt. W.G.L. Salmon, RNVR: From June 1944 onwards<br />
<br />
MGB-75 served as part of the 6th MGB Flotilla with HMS Beehive at Felixstowe through 1943. In September 1943, MGB-75 received her refit and was redesignated as MTB-413. Through 1944, MTB-413 served as part of the 1st MTB Flotilla at Portsmouth. MTB-413 survived the war and was disposed of in October 1945.<br />
<br />
== Media ==<br />
<!-- ''Excellent additions to the article would be video guides, screenshots from the game, and photos.'' --><br />
<br />
<div class="portale" align="center"><br />
{| class="catlist" frame="box" style="background: #efefef;" align="center"<br />
|<span style="white-space:nowrap;">[[File:GEN_LIVE_WT_1_HPL.jpg|510px|link=https://live.warthunder.com/feed/camouflages/?vehicleCountry=britain&vehicleType=ship&vehicleClass=gun_boat&vehicle=uk_71ft_mgb|]]</span> ||<br />
|-<br />
|}<br />
</div><br />
<br />
== See also ==<br />
<!-- ''Links to articles on the War Thunder Wiki that you think will be useful for the reader, for example:''<br />
* ''reference to the series of the ship;''<br />
* ''links to approximate analogues of other nations and research trees.'' --><br />
<br />
* {{Specs-Link|uk_fairmile_a_ml100}}<br />
* {{Specs-Link|uk_70ft_mgb}}<br />
* {{Specs-Link|uk_dark_class}}<br />
<br />
== External links ==<br />
<!-- ''Paste links to sources and external resources, such as:''<br />
* ''topic on the official game forum;''<br />
* ''encyclopedia page on the ship;''<br />
* ''other literature.'' --><br />
<br />
* [http://cfv.org.uk/research/boat/database Coastal Forces Veterans - Boat Database]<br />
* [https://www.unithistories.com/units_british/RN_CoastalForces.html#MGB%20Boats unithistories.com - Royal Navy Coastal Forces 1940-1945]<br />
* [http://www.naval-history.net/WW2BritishLosses3Coastal.htm naval-history.net - British vessels lost at sea in World War 2 - MGB, MTB, SGB, ML, etc] - originally published in ''British Vessels Lost at Sea, 1935-45'', His Majesty's Stationary Office, 1947<br />
* [http://www.navypedia.org/ships/uk/brit_c_f_mtb412.htm NAVYPEDIA - MTB412 motor torpedo boats (93, 1942 - 1946)]<br />
* [https://uboat.net/allies/warships/class.html?ID=673&navy=HMS uboat.net - BPB 72 feet-type class]<br />
* [https://www.yalumba.co.uk/Framesets/British%20Power%20Boat%20Co%20-%20Page%204,%20MGBs.html yalumba.co.uk - British Power Boat Co Page 4]<br />
* [http://www.coastal-forces.org.uk/boats.html Coastal Forces Heritage Trust - Boats]<br />
<br />
===Bibliography===<br />
<br />
* Konstam, Angus (2010). ''British Motor Gun Boat 1939–45''. Osprey Publishing Ltd. ISBN 978-1-84908-077-4.<br />
<br />
{{Britain boats}}<br />
{{Britain premium ships}}</div>U27474208https://old-wiki.warthunder.com/index.php?title=MGB-75&diff=103979MGB-752021-05-31T10:23:26Z<p>U27474208: /* Additional armament */ Expanded on depth charges</p>
<hr />
<div>{{Specs-Card<br />
|code=uk_71ft_mgb<br />
|images={{Specs-Card-Image|GarageImage_{{PAGENAME}}.jpg}}<br />
}}<br />
<br />
== Description ==<br />
<!-- ''In the first part of the description, cover the history of the ship's creation and military application. In the second part, tell the reader about using this ship in the game. Add a screenshot: if a beginner player has a hard time remembering vehicles by name, a picture will help them identify the ship in question.'' --><br />
The '''{{Specs|name}}''' is a premium rank {{Specs|rank}} British motor gun boat {{Battle-rating}}. It was introduced in [[Update 1.91 "Night Vision"]]. Originally a rank I vessel, with the split of the naval tech trees in [[Update "New Power"]], {{PAGENAME}} was moved to rank II in the coastal fleet tech tree.<br />
<br />
== General info ==<br />
=== Survivability and armour ===<br />
{{Specs-Fleet-Armour}}<br />
<!-- ''Talk about the vehicle's armour. Note the most well-defended and most vulnerable zones, e.g. the ammo magazine. Evaluate the composition of components and assemblies responsible for movement and manoeuvrability. Evaluate the survivability of the primary and secondary armaments separately. Don't forget to mention the size of the crew, which plays an important role in fleet mechanics. Save tips on preserving survivability for the "Usage in battles" section. If necessary, use a graphical template to show the most well-protected or most vulnerable points in the armour.'' --><br />
<br />
MGB-75 has the following armour layout:<br />
<br />
* [[2pdr QF Mk.IIc (40 mm)|2pdr QF Mk.IIc]] gunshield: 12.7 mm hardened armour<br />
* [[20 mm/70 Oerlikon Mark V (20 mm)|20 mm/70 Oerlikon Mark V]] gunshield: 12.7 mm hardened armour<br />
* Hull: 40 mm, wood<br />
* Superstructure: 15 mm, wood<br />
<br />
[[File:MGB-75_internals.png|thumb|MGB-75 internals (starboard side).]]<br />
<br />
Like most coastal vessels, MGB-75 has no practical armour. The gunshields are largely superficial; while they may stop low-calibre machine guns, heavy machine guns and cannons will easily penetrate them at any range. The hull and superstructure are unarmoured and will not stop any sort of gunfire.<br />
<br />
The hull is split into three hull sections. Starting from the bow and working towards the stern, the first section starts at the bow and ends just in front of forward gun; the second ends after the bridge, forward of the engines; and the third ends at the stern. <br />
<br />
Any round with a large enough diameter and explosive mass can hull break MGB-75. In general, this is limited to HE rounds with a diameter greater than 4 inches (102 mm) and with an explosive mass greater than 1.5 kg. At MGB-75's battle rating, the only guns that can hull break her are:<br />
<br />
* the [[10.5 cm SK C/32 (105 mm)|10.5 cm SK C/32]], found on {{Specs-Link|germ_escort_typem1943}}; and<br />
* the [[8cwt QF Mk I (114 mm)|114 mm 8cwt QF Mk I]], found on {{Specs-Link|uk_dark_class}}. <br />
<br />
There are two ammunition storages. The first ammunition storage, which holds ammunition for the primary armament, is located in the hull above the waterline, below and slightly in front of the forward gun turret. The second ammunition storage, which holds ammunition for both the secondary and AA armament, is located above deck, in front of the aft gun turret. Destroying either will instantly destroy MGB-75. Since it is located above deck, the second ammunition storage is particularly susceptible to detonation by random gunfire or artillery.<br />
<br />
MGB-75 has a crew complement of 12. With a stock crew, MGB-75 is knocked out when 8 crew are lost; with an aced crew, this is increased to 9. Overall, survivability is below-average. <br />
<br />
=== Mobility ===<br />
{{Specs-Fleet-Mobility}}<br />
<!-- ''Write about the ship's mobility. Evaluate its power and manoeuvrability, rudder rerouting speed, stopping speed at full tilt, with its maximum forward and reverse speed.'' --><br />
<br />
{{NavalMobility<br />
|SpeedForwardStockAB = 77<br />
|SpeedBackStockAB = 21<br />
|TurnTimeStockAB = 29.18<br />
|TurnSpeedStockAB = 43<br />
<br />
|TurnTimeSpadedAB = 19.63<br />
|TurnSpeedSpadedAB = 40<br />
<br />
|SpeedForwardStockRB = 67<br />
|SpeedBackStockRB = 19<br />
|TurnTimeStockRB = 32.40<br />
|TurnSpeedStockRB = 45<br />
<br />
|TurnTimeSpadedRB = 26.30<br />
|TurnSpeedSpadedRB = 43<br />
}}<br />
<br />
When moving forwards at high speeds, the bow will lift out of the water. This creates a blind spot where the 40 mm 2pdr QF Mk.IIc is unable to depress far enough to hit the waterline in an area ~400 m in front of the boat.<br />
<br />
MGB-75 has a displacement of 51.5 tons.<br />
<br />
=== Modifications and economy ===<br />
{{Specs-Economy}}<br />
<br />
As a premium vehicle, all modifications are unlocked for free. <br />
<br />
== Armament ==<br />
{{Specs-Fleet-Armaments}}<br />
=== Primary armament ===<br />
{{Specs-Fleet-Primary}}<br />
<!-- ''Provide information about the characteristics of the primary armament. Evaluate their efficacy in battle based on their reload speed, ballistics and the capacity of their shells. Add a link to the main article about the weapon: <code><nowiki>{{main|Weapon name (calibre)}}</nowiki></code>. Broadly describe the ammunition available for the primary armament, and provide recommendations on how to use it and which ammunition to choose.'' --><br />
{{main|2pdr QF Mk.IIc (40 mm)}}<br />
<br />
The primary armament consists of a single 40 mm 2pdr QF Mk.IIc cannon mounted forwards in front of the bridge. Stock, the mount can traverse horizontally at a rate of 34°/s and vertically at a rate of 21°/s; with the "Primary Armament Targeting" modification installed, this is increased to 40°/s and 25°/s respectively. With a full ammunition load, there are 2,240 rounds of ammunition, or 40 magazines, available for the mount. The gun has a magazine capacity of 56 rounds and a cycle rate of fire of 200 rounds/min. With a stock crew, it can be reloaded in 7.8 seconds; with an aced crew, this is decreased to 6 seconds.<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="2" | Primary aramament guidance<br />
|-<br />
! Horizontal !! Vertical<br />
|-<br />
| ±180° || -5°/+70°<br />
|-<br />
|}<br />
<br />
There are three ammunition types available:<br />
<br />
* Universal: {{Annotation|HEF|High-explosive fragmentation}}/{{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|HEF|High-explosive fragmentation}}/{{Annotation|AP-T|Armour-piercing tracer}}<br />
* 40 mm HE: {{Annotation|HEF|High-explosive fragmentation}}/{{Annotation|HEF|High-explosive fragmentation}}/{{Annotation|HEF|High-explosive fragmentation}}/{{Annotation|AP-T|Armour-piercing tracer}}<br />
* 40 mm AP: {{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|HEF|High-explosive fragmentation}}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="7" | Penetration statistics<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| Universal || 60 || 57 || 50 || 43 || 38 || 34<br />
|-<br />
| 40 mm HE || 60 || 57 || 50 || 43 || 38 || 34<br />
|-<br />
| 40 mm AP || 60 || 57 || 50 || 43 || 38 || 34<br />
|-<br />
|}<br />
<br />
The best ammunition type is 40 mm HE, since it has the highest ratio of HE rounds to AP rounds, making it the most effective against both aircraft and the vast majority of surface targets. Take mostly 40 mm HE along with a several magazines of 40 mm AP for armoured targets.<br />
<br />
=== Secondary armament ===<br />
{{Specs-Fleet-Secondary}}<br />
<!-- ''Some ships are fitted with weapons of various calibres. Secondary armaments are defined as weapons chosen with the control <code>Select secondary weapon</code>. Evaluate the secondary armaments and give advice on how to use them. Describe the ammunition available for the secondary armament. Provide recommendations on how to use them and which ammunition to choose. Remember that any anti-air armament, even heavy calibre weapons, belong in the next section. If there is no secondary armament, remove this section.'' --><br />
{{main|20 mm/70 Oerlikon Mark V (20 mm)}}<br />
<br />
The secondary armament consists of two 20 mm/70 Oerlikon Mark V cannons in a twin mount aft. Stock, the mount can traverse horizontally at a rate of 51°/s and vertically at a rate of 43°/s; with the "Secondary Armament Targeting" modification installed, this is increased to 60°/s and 50°/s respectively. With a full ammunition load, there are 3,600 rounds of ammunition, or 60 magazines, available for the mount. Each gun has a magazine capacity of 60 rounds and a cycle rate of fire of 450 rounds/min, though the gun on the gunner's left side fires at a slightly faster rate, around 485 rounds/min. With a stock crew, the mount can be reloaded in 10.4 seconds; with an aced crew, this is decreased to 8 seconds.<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="2" | Secondary armament guidance<br />
|-<br />
! Horizontal !! Vertical<br />
|-<br />
| ±180° || -10°/+60°<br />
|-<br />
|}<br />
<br />
There are three ammunition types available:<br />
<br />
* Universal: {{Annotation|HEF-T|High-explosive fragmentation tracer}}/{{Annotation|HEF-I|High-explosive fragmentation incendiary}}/{{Annotation|AP-T|Armour-piercing tracer}}<br />
<br />
* 20 mm HE: {{Annotation|HEF-T|High-explosive fragmentation tracer}}/{{Annotation|HEF-I|High-explosive fragmentation incendiary}}/{{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|HEF-I|High-explosive fragmentation incendiary}}<br />
<br />
* 20 mm AP: {{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|HEF-I|High-explosive fragmentation incendiary}}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="7" | Penetration statistics<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| Universal || 35 || 33 || 26 || 21 || 18 || 15<br />
|-<br />
| 20 mm HE || 35 || 33 || 26 || 21 || 18 || 15<br />
|-<br />
| 20 mm AP || 35 || 33 || 26 || 21 || 18 || 15<br />
|-<br />
|}<br />
<br />
The best ammunition type is the 20 mm HE belt, since it has the highest ratio of HE rounds to AP rounds, making it the most effective against both aircraft and the vast majority of surface targets. The Universal belt is a direct downgrade to the 20 mm HE belt in terms of damage, and the 20 mm AP belt isn't really worth taking due to its relatively low armour penetration. To deal with armoured opponents, use the primary 40 mm 2pdr QF Mk.IIc instead. Take only 20 mm HE.<br />
<br />
=== Anti-aircraft armament ===<br />
{{Specs-Fleet-AA}}<br />
<!-- ''An important part of the ship's armament responsible for air defence. Anti-aircraft armament is defined by the weapon chosen with the control <code>Select anti-aircraft weapons</code>. Talk about the ship's anti-air cannons and machine guns, the number of guns and their positions, their effective range, and about their overall effectiveness – including against surface targets. If there are no anti-aircraft armaments, remove this section.'' --><br />
{{main|Lewis 1916 (7.72 mm)}}<br />
<br />
The anti-aircraft armament consists of four 7.72 mm Lewis 1916 machine guns in two twin mounts, one on either side of the bridge. A total of 7,760 rounds of ammunition, or 80 magazines, are carried for both mounts, 1,940 rounds, or 20 magazines, per gun. Each gun has a magazine capacity of 97 rounds and a cycle rate of fire of 550 rounds/min. With a stock crew, the mount can be reloaded in 18.2 seconds; with an aced crew, this is decreased to 14 seconds. Horizontal and vertical traverse rates are not stated in-game. <br />
<br />
{{Notice|Turrets are named sequentially, clockwise, starting at the bow}}<br />
<br />
{| class="wikitable" style="text-align:center" width="65%"<br />
! colspan="8" | Anti-aircraft armament guidance<br />
|-<br />
! colspan="2" rowspan="1" | No.1 Turret (starboard)<br />
! colspan="2" rowspan="1" | No.2 Turret (port)<br />
|-<br />
! Horizontal !! Vertical !! Horizontal !! Vertical<br />
|-<br />
| -45°/+170° || -5°/+60° || -170°/+45° || -5°/+60°<br />
|-<br />
|}<br />
<br />
Ammunition types cannot be selected for the anti-aircraft armament on MGB-75. Belt composition and penetration statistics are not stated in-game.<br />
<br />
=== Additional armament ===<br />
{{Specs-Fleet-Additional}}<br />
<!-- ''Describe the available additional armaments of the ship: depth charges, mines, torpedoes. Talk about their positions, available ammunition and launch features such as dead zones of torpedoes. If there is no additional armament, remove this section.'' --><br />
{{main|Mk.VII depth charge}}<br />
<br />
MGB-75 has two possible loadouts:<br />
<br />
# Without load<br />
# 2x Mk.VII depth charge<br />
<br />
'''Depth charges'''<br />
<br />
[[File:MGB-75_DCs.png|thumb|Mk.VII depth charges numbered according to their drop order (click to expand).]]<br />
<br />
The Mk.VII depth charges are carried amidships, one on either side of the bridge next to the twin 7.72 mm Lewis 1916 machine guns. They are dropped one at a time in the following order:<br />
<br />
# Starboard<br />
# Port<br />
<br />
Before spawning, the detonation time delay can be set anywhere between 3 seconds and 10 seconds.<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="7" | Depth charge characteristics<br />
|-<br />
! Mass (kg)<br />
! Explosive type<br />
! Explosive mass (kg)<br />
! TNT equivalent (kg)<br />
! HE armour penetration (mm)<br />
! Armoured vehicle destruction radius (m)<br />
! Fragment dispersion radius (m)<br />
|-<br />
| 196 || TNT || 130 || 130 || 101 || 8 || 122<br />
|-<br />
|}<br />
<br />
There is almost no practical reason to use depth charges on any naval vessel in the game. Although they usually result in a one-hit kill if used properly, they are extremely situational, requiring the player to close to point-blank ranges to even use them. In almost every case, anytime a depth charge could be used, the guns can be used instead to greater effect. In fact, depth charges tend to actually be a liability in battle, since they essentially act as exposed ammo racks before they're dropped. They can be shot at, and if destroyed, they have a chance to detonate, instantly destroying the boat.<br />
<br />
Despite this, some success can be had in dropping them either next to, or in front of a large, slow target. If dropping them next to the target, remember the depth charge drop order, since it's most likely that only the depth charges dropped on the side closest to the enemy will deal any damage. If dropping in front of the target, rush in from the sides as quickly as possible and drop them all at once directly in front of the target. For both cases, set the depth charge time delay to the minimum 3 seconds, since any higher time delay will only allow the depth charge to sink further away from the target, giving them more time to move out of the way. Again, using depth charges is extremely situational, and they will only be a liability the vast majority of the time, so take them at your own discretion.<br />
<br />
== Usage in battles ==<br />
<!-- ''Describe the technique of using this ship, the characteristics of her use in a team and tips on strategy. Abstain from writing an entire guide – don't try to provide a single point of view, but give the reader food for thought. Talk about the most dangerous opponents for this vehicle and provide recommendations on fighting them. If necessary, note the specifics of playing with this vehicle in various modes (AB, RB, SB).'' --><br />
<br />
While the MGB-75's primary armament, the 40 mm 2pdr QF Mk.IIc, is a good weapon. It has a very good damage output, and, with a maximum range of roughly 3.1 km, it can outrange any opponent armed with 20 mm cannons. The gun can deal a lot of damage when the rounds hit; however, getting them to land may not always be the easiest task, mainly due to MGB-75's construction. MGB-75 has a relatively short hull, and she isn't particularly heavy for her size, so she is easily thrown around by rough waters. This, of course, makes accurately aiming the gun at long ranges practically impossible unless the sea is calm. In addition to this, MGB-75 has a planing hull, so the bow will lift out of the water when moving at high speeds. The 2pdr QF Mk.IIc can't depress far enough to compensate, so, when on the move, it won't actually be able to target most enemies in an area extending roughly 500 meters in front of the boat. Take care to either turn the hull or to slow down to engage enemies. Other shortcomings of the gun are its relatively long reload and that it's very easy to disable. For the former, if there are less than 20 or so rounds left in the magazine, it's best to fire off the remaining ammunition after each engagement to minimize the chance of needing to reload during the next engagement.<br />
<br />
If the 2pdr QF Mk.IIc is knocked out or if it is reloading, switch to the secondary twin 20 mm Oerlikon Mk.V cannons. These guns have a shorter reload than the 40 mm, and they have a much faster traverse and elevation rates, so it tends to be better for close engagements. Since the default position of the mount is to face directly aft, it's best to have it targeting the enemy currently being engaged (default: X + 2) when not in use in order to have it already facing the enemy if it's needed. Of course, this also means that it won't be able to target any other boats or aircraft while the current target is still selected, so try not to be tunnel-visioned and always keep an eye on the surroundings. Aside from that, just like the 2pdr QF Mk.IIc, always be aware of how much ammunition is left in the magazines. If there are less than 40 rounds of so rounds left between the two guns, fire off the remaining ammunition to load a full magazine.<br />
<br />
Be careful when engaging any enemy with 3-inch or larger guns. MGB-75 has large ammunition storages, and, if a 3-inch or larger HE round hits anywhere near the ammunition storages, especially the aft pair, it more often than not leads to an ammunition detonation. This is even more so with artillery fire. If the artillery warning displays, leave the area as soon as possible.<br />
<br />
The fore 40 mm 2pdr QF Mk.IIc cannon can fire in ~143° to either side, centred forwards. As mentioned before, a blind spot is created when moving at high speeds which prevents the gun from firing in an area that extends ~500 ahead and which covers ~45° to either side. The aft twin 20 mm Oerlikon Mk.V cannons can fire in all directions except for a ~45° arc, centred forwards. When moving at high speeds, this blind arc is increased to ~75°.<br />
<br />
;Ammunition Choices<br />
<br />
For the 40 mm 2pdr QF Mk.IIc cannon, the best ammunition choice is the 40 mm HE because it has the highest ratio of HE rounds to AP rounds, meaning that it will be the most effective against both aircraft and surface targets. The 40 mm HE belt should be the main ammunition choice, but a few of the 40 mm AP belt should also be taken into battle for use against armoured targets.<br />
<br />
For the 20 mm Oerlikon Mk.V cannons, the best ammunition choice is the 20 mm HE. There isn't much of a point in using the 20 mm AP belt because the primary armament is much more suited for engaging armoured targets anyway.<br />
<br />
;Depth Charges<br />
<br />
Being anti-submarine weapons and with the present lack of submarines in the game, there is practically no reason to use them. While they can be used against surface targets, this is extremely situational. Sailing up right next to a slower target and dropping a depth charge can lead to some success, though again, this is very situational. If attempting this, remember the order in which the depth charges drop and that there is no reason to use any depth charge activation time setting above the minimum 3 seconds, since higher delay times means the depth charge will sink further, and thus away, from the target. Again, it should be reiterated that this is very situational.<br />
<br />
There is no practical reason to take them into battle, especially since, if they're not dropped, they essentially become unarmoured ammo racks.<br />
<br />
=== Pros and cons ===<br />
<!-- ''Summarise and briefly evaluate the vehicle in terms of its characteristics and combat effectiveness. Mark its pros and cons in the bulleted list. Try not to use more than 6 points for each of the characteristics. Avoid using categorical definitions such as "bad", "good" and the like - use substitutions with softer forms such as "inadequate" and "effective".'' --><br />
<br />
'''Pros:'''<br />
* Powerful primary and secondary armament<br />
* Both primary and secondary armament can rotate 360°<br />
* Secondary armament: very good elevation and traverse rates; large magazine capacity; good firing arcs<br />
<br />
'''Cons:'''<br />
* Blind spot directly in front when moving at high speeds<br />
* Primary armament: long reload; easily disabled<br />
* Anti-aircraft armament: long reload; can only elevate 60°; low damage output<br />
* Unstable firing platform in rough waters<br />
* Large ammo racks<br />
<br />
== History ==<br />
<!-- ''Describe the history of the creation and combat usage of the ship in more detail than in the introduction. If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the ship and adding a block "/History" (example: <nowiki>https://wiki.warthunder.com/(Ship-name)/History</nowiki>) and add a link to it here using the <code>main</code> template. Be sure to reference text and sources by using <code><nowiki><ref></ref></nowiki></code>, as well as adding them at the end of the article with <code><nowiki><references /></nowiki></code>. This section may also include the ship's dev blog entry (if applicable) and the in-game encyclopedia description (under <code><nowiki>=== In-game description ===</nowiki></code>, also if applicable).'' --><br />
<br />
By early 1941, many of the British Power Boat Company (BPB) 60-foot, 63-foot, and 70-foot boats had been completed and were in Royal Navy Coastal Forces service, and already, their weaknesses began to show. The boats were small and lightly constructed, and the living condition for the crew was cramped. Additionally, because of their underpowered engines, they were slow. While their low top speed was certainly acceptable for the anti-submarine work, as they were initially built to perform, it was insufficient by 1941 as most of the boats had been converted into motor gun boats by this point. Thus, in 1941, BPB began designing a larger, faster boat.<br />
<br />
BPB's new design had a length of 71 feet 9 inches (21.9 m), a beam of 20 feet 7 inches (6.3 m), and a draught of about 4 feet 3 inches (1.3 m). It was powered by three Packard petrol engines driving three shafts which allowed it to achieve a top speed of 42 knots. The BPB 71'9" boats formed the bulk of Coastal Forces' MGB fleet until the introduction of the larger and more heavily-armed Fairmile D boats. In total, 96 boats were built:<br />
<br />
* MGBs 74-81: ordered in November 1940 as MA/SBs, all completed in 1942 as MGBs. Any surviving boats by September 1943 were refitted with a pair of 18-inch torpedo tubes and redesignated as MTBs 412-416. Any of the boats that survived the war were disposed of in October 1945.<br />
* MGBs 107-119: ordered in November 1940 as MA/SBs, canceled in March 1941, and reordered in February 1942, all completed in 1942 as MGBs. Any surviving boats by September 1943 were refitted with a pair of 18-inch torpedo tubes and redesignated as MTBs 417-418 and 430-438. Any of the boats that survived the war were disposed of either in March 1945 or in October 1945. Their fates are as follows:<br />
* MGBs 120-130: ordered in May 1942 as MGBs, all completed in 1943. All boats were refitted in September 1943 with a pair of 18-inch torpedo tubes and redesignated as MTBs 439-449. Most of the boats that survived the war were disposed of in October 1945.<br />
* MTBs 450-489: ordered as MGBs, all completed between 1943-1945 as MTBs. Any of the boats that survived the war were disposed of at various dates or used as controlled targets.<br />
* MTBs 490-500: ordered as MTBs, all completed between 1944-1945. Any of the boats that survived the war were disposed of at various dates or used as controlled targets, with the exception of MTB-496 and MTB-498. These were refurbished in 1949 and renumbered MTB-1596 and MTB-1598 to form the "Proud" class along with MTBs 1505-1509, MTB-1519, and MTB-1522. They were given the names "Proud Patriot" and "Proud Patroller", respectively. The "Proud" class boats were all sold in June 1958.<br />
* MTBs 501-509: ordered as MTBs, all completed in 1945. All of the bats survived the war. MTBs 501-504 were sold or disposed of at various dates. MTBs 505-509 were refurbished in 1949 and renumbered MTBs 1505-1509 to form the "Proud" class along with MTB-1596, MTB-1598, MTB-1519, and MTB-1522. They were given the names "Proud Fusilier", "Proud Grenadier", "Proud Guardsman", "Proud Highlander", and "Proud Knight", respectively. The "Proud" class boats were all sold in June 1958.<br />
* MTBs 519-522: ordered as MGBs, all completed in 1946 as MTBs. With the exception of MTB-520, they were refurbished in 1949 and renumbered MTB-1519, MTB-1521, and MTB-1522. MTB-1519 and MTB-1522 formed the "Proud" class along with MTBs 1505-1509, MTB-1596, and MTB-1598. They were given the names "Proud Lancer" and "Proud Legionary", respectively. The "Proud" class boats were all sold in June 1958.<br />
<br />
MGB-75 was part of the original order placed in November 1940. She was ordered as a motor anti-submarine boat but was completed on 8th May 1942 as a motor gun boat. MGB-75 was commanded by the following:<br />
<br />
* T/Lt. L.G.R. Campbell, RNVR: October 1942 to February 1943<br />
* T/S.Lt. F.J. Head, RNVR: April 1943 to June 1943<br />
* T/S.Lt. W.G.L. Salmon, RNVR: From June 1944 onwards<br />
<br />
MGB-75 served as part of the 6th MGB Flotilla with HMS Beehive at Felixstowe through 1943. In September 1943, MGB-75 received her refit and was redesignated as MTB-413. Through 1944, MTB-413 served as part of the 1st MTB Flotilla at Portsmouth. MTB-413 survived the war and was disposed of in October 1945.<br />
<br />
== Media ==<br />
<!-- ''Excellent additions to the article would be video guides, screenshots from the game, and photos.'' --><br />
<br />
<div class="portale" align="center"><br />
{| class="catlist" frame="box" style="background: #efefef;" align="center"<br />
|<span style="white-space:nowrap;">[[File:GEN_LIVE_WT_1_HPL.jpg|510px|link=https://live.warthunder.com/feed/camouflages/?vehicleCountry=britain&vehicleType=ship&vehicleClass=gun_boat&vehicle=uk_71ft_mgb|]]</span> ||<br />
|-<br />
|}<br />
</div><br />
<br />
== See also ==<br />
<!-- ''Links to articles on the War Thunder Wiki that you think will be useful for the reader, for example:''<br />
* ''reference to the series of the ship;''<br />
* ''links to approximate analogues of other nations and research trees.'' --><br />
<br />
* {{Specs-Link|uk_fairmile_a_ml100}}<br />
* {{Specs-Link|uk_70ft_mgb}}<br />
* {{Specs-Link|uk_dark_class}}<br />
<br />
== External links ==<br />
<!-- ''Paste links to sources and external resources, such as:''<br />
* ''topic on the official game forum;''<br />
* ''encyclopedia page on the ship;''<br />
* ''other literature.'' --><br />
<br />
* [http://cfv.org.uk/research/boat/database Coastal Forces Veterans - Boat Database]<br />
* [https://www.unithistories.com/units_british/RN_CoastalForces.html#MGB%20Boats unithistories.com - Royal Navy Coastal Forces 1940-1945]<br />
* [http://www.naval-history.net/WW2BritishLosses3Coastal.htm naval-history.net - British vessels lost at sea in World War 2 - MGB, MTB, SGB, ML, etc] - originally published in ''British Vessels Lost at Sea, 1935-45'', His Majesty's Stationary Office, 1947<br />
* [http://www.navypedia.org/ships/uk/brit_c_f_mtb412.htm NAVYPEDIA - MTB412 motor torpedo boats (93, 1942 - 1946)]<br />
* [https://uboat.net/allies/warships/class.html?ID=673&navy=HMS uboat.net - BPB 72 feet-type class]<br />
* [https://www.yalumba.co.uk/Framesets/British%20Power%20Boat%20Co%20-%20Page%204,%20MGBs.html yalumba.co.uk - British Power Boat Co Page 4]<br />
* [http://www.coastal-forces.org.uk/boats.html Coastal Forces Heritage Trust - Boats]<br />
<br />
===Bibliography===<br />
<br />
* Konstam, Angus (2010). ''British Motor Gun Boat 1939–45''. Osprey Publishing Ltd. ISBN 978-1-84908-077-4.<br />
<br />
{{Britain boats}}<br />
{{Britain premium ships}}</div>U27474208https://old-wiki.warthunder.com/index.php?title=MGB-75&diff=103978MGB-752021-05-31T10:17:01Z<p>U27474208: /* Anti-aircraft armament */ Updated to 2.5</p>
<hr />
<div>{{Specs-Card<br />
|code=uk_71ft_mgb<br />
|images={{Specs-Card-Image|GarageImage_{{PAGENAME}}.jpg}}<br />
}}<br />
<br />
== Description ==<br />
<!-- ''In the first part of the description, cover the history of the ship's creation and military application. In the second part, tell the reader about using this ship in the game. Add a screenshot: if a beginner player has a hard time remembering vehicles by name, a picture will help them identify the ship in question.'' --><br />
The '''{{Specs|name}}''' is a premium rank {{Specs|rank}} British motor gun boat {{Battle-rating}}. It was introduced in [[Update 1.91 "Night Vision"]]. Originally a rank I vessel, with the split of the naval tech trees in [[Update "New Power"]], {{PAGENAME}} was moved to rank II in the coastal fleet tech tree.<br />
<br />
== General info ==<br />
=== Survivability and armour ===<br />
{{Specs-Fleet-Armour}}<br />
<!-- ''Talk about the vehicle's armour. Note the most well-defended and most vulnerable zones, e.g. the ammo magazine. Evaluate the composition of components and assemblies responsible for movement and manoeuvrability. Evaluate the survivability of the primary and secondary armaments separately. Don't forget to mention the size of the crew, which plays an important role in fleet mechanics. Save tips on preserving survivability for the "Usage in battles" section. If necessary, use a graphical template to show the most well-protected or most vulnerable points in the armour.'' --><br />
<br />
MGB-75 has the following armour layout:<br />
<br />
* [[2pdr QF Mk.IIc (40 mm)|2pdr QF Mk.IIc]] gunshield: 12.7 mm hardened armour<br />
* [[20 mm/70 Oerlikon Mark V (20 mm)|20 mm/70 Oerlikon Mark V]] gunshield: 12.7 mm hardened armour<br />
* Hull: 40 mm, wood<br />
* Superstructure: 15 mm, wood<br />
<br />
[[File:MGB-75_internals.png|thumb|MGB-75 internals (starboard side).]]<br />
<br />
Like most coastal vessels, MGB-75 has no practical armour. The gunshields are largely superficial; while they may stop low-calibre machine guns, heavy machine guns and cannons will easily penetrate them at any range. The hull and superstructure are unarmoured and will not stop any sort of gunfire.<br />
<br />
The hull is split into three hull sections. Starting from the bow and working towards the stern, the first section starts at the bow and ends just in front of forward gun; the second ends after the bridge, forward of the engines; and the third ends at the stern. <br />
<br />
Any round with a large enough diameter and explosive mass can hull break MGB-75. In general, this is limited to HE rounds with a diameter greater than 4 inches (102 mm) and with an explosive mass greater than 1.5 kg. At MGB-75's battle rating, the only guns that can hull break her are:<br />
<br />
* the [[10.5 cm SK C/32 (105 mm)|10.5 cm SK C/32]], found on {{Specs-Link|germ_escort_typem1943}}; and<br />
* the [[8cwt QF Mk I (114 mm)|114 mm 8cwt QF Mk I]], found on {{Specs-Link|uk_dark_class}}. <br />
<br />
There are two ammunition storages. The first ammunition storage, which holds ammunition for the primary armament, is located in the hull above the waterline, below and slightly in front of the forward gun turret. The second ammunition storage, which holds ammunition for both the secondary and AA armament, is located above deck, in front of the aft gun turret. Destroying either will instantly destroy MGB-75. Since it is located above deck, the second ammunition storage is particularly susceptible to detonation by random gunfire or artillery.<br />
<br />
MGB-75 has a crew complement of 12. With a stock crew, MGB-75 is knocked out when 8 crew are lost; with an aced crew, this is increased to 9. Overall, survivability is below-average. <br />
<br />
=== Mobility ===<br />
{{Specs-Fleet-Mobility}}<br />
<!-- ''Write about the ship's mobility. Evaluate its power and manoeuvrability, rudder rerouting speed, stopping speed at full tilt, with its maximum forward and reverse speed.'' --><br />
<br />
{{NavalMobility<br />
|SpeedForwardStockAB = 77<br />
|SpeedBackStockAB = 21<br />
|TurnTimeStockAB = 29.18<br />
|TurnSpeedStockAB = 43<br />
<br />
|TurnTimeSpadedAB = 19.63<br />
|TurnSpeedSpadedAB = 40<br />
<br />
|SpeedForwardStockRB = 67<br />
|SpeedBackStockRB = 19<br />
|TurnTimeStockRB = 32.40<br />
|TurnSpeedStockRB = 45<br />
<br />
|TurnTimeSpadedRB = 26.30<br />
|TurnSpeedSpadedRB = 43<br />
}}<br />
<br />
When moving forwards at high speeds, the bow will lift out of the water. This creates a blind spot where the 40 mm 2pdr QF Mk.IIc is unable to depress far enough to hit the waterline in an area ~400 m in front of the boat.<br />
<br />
MGB-75 has a displacement of 51.5 tons.<br />
<br />
=== Modifications and economy ===<br />
{{Specs-Economy}}<br />
<br />
As a premium vehicle, all modifications are unlocked for free. <br />
<br />
== Armament ==<br />
{{Specs-Fleet-Armaments}}<br />
=== Primary armament ===<br />
{{Specs-Fleet-Primary}}<br />
<!-- ''Provide information about the characteristics of the primary armament. Evaluate their efficacy in battle based on their reload speed, ballistics and the capacity of their shells. Add a link to the main article about the weapon: <code><nowiki>{{main|Weapon name (calibre)}}</nowiki></code>. Broadly describe the ammunition available for the primary armament, and provide recommendations on how to use it and which ammunition to choose.'' --><br />
{{main|2pdr QF Mk.IIc (40 mm)}}<br />
<br />
The primary armament consists of a single 40 mm 2pdr QF Mk.IIc cannon mounted forwards in front of the bridge. Stock, the mount can traverse horizontally at a rate of 34°/s and vertically at a rate of 21°/s; with the "Primary Armament Targeting" modification installed, this is increased to 40°/s and 25°/s respectively. With a full ammunition load, there are 2,240 rounds of ammunition, or 40 magazines, available for the mount. The gun has a magazine capacity of 56 rounds and a cycle rate of fire of 200 rounds/min. With a stock crew, it can be reloaded in 7.8 seconds; with an aced crew, this is decreased to 6 seconds.<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="2" | Primary aramament guidance<br />
|-<br />
! Horizontal !! Vertical<br />
|-<br />
| ±180° || -5°/+70°<br />
|-<br />
|}<br />
<br />
There are three ammunition types available:<br />
<br />
* Universal: {{Annotation|HEF|High-explosive fragmentation}}/{{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|HEF|High-explosive fragmentation}}/{{Annotation|AP-T|Armour-piercing tracer}}<br />
* 40 mm HE: {{Annotation|HEF|High-explosive fragmentation}}/{{Annotation|HEF|High-explosive fragmentation}}/{{Annotation|HEF|High-explosive fragmentation}}/{{Annotation|AP-T|Armour-piercing tracer}}<br />
* 40 mm AP: {{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|HEF|High-explosive fragmentation}}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="7" | Penetration statistics<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| Universal || 60 || 57 || 50 || 43 || 38 || 34<br />
|-<br />
| 40 mm HE || 60 || 57 || 50 || 43 || 38 || 34<br />
|-<br />
| 40 mm AP || 60 || 57 || 50 || 43 || 38 || 34<br />
|-<br />
|}<br />
<br />
The best ammunition type is 40 mm HE, since it has the highest ratio of HE rounds to AP rounds, making it the most effective against both aircraft and the vast majority of surface targets. Take mostly 40 mm HE along with a several magazines of 40 mm AP for armoured targets.<br />
<br />
=== Secondary armament ===<br />
{{Specs-Fleet-Secondary}}<br />
<!-- ''Some ships are fitted with weapons of various calibres. Secondary armaments are defined as weapons chosen with the control <code>Select secondary weapon</code>. Evaluate the secondary armaments and give advice on how to use them. Describe the ammunition available for the secondary armament. Provide recommendations on how to use them and which ammunition to choose. Remember that any anti-air armament, even heavy calibre weapons, belong in the next section. If there is no secondary armament, remove this section.'' --><br />
{{main|20 mm/70 Oerlikon Mark V (20 mm)}}<br />
<br />
The secondary armament consists of two 20 mm/70 Oerlikon Mark V cannons in a twin mount aft. Stock, the mount can traverse horizontally at a rate of 51°/s and vertically at a rate of 43°/s; with the "Secondary Armament Targeting" modification installed, this is increased to 60°/s and 50°/s respectively. With a full ammunition load, there are 3,600 rounds of ammunition, or 60 magazines, available for the mount. Each gun has a magazine capacity of 60 rounds and a cycle rate of fire of 450 rounds/min, though the gun on the gunner's left side fires at a slightly faster rate, around 485 rounds/min. With a stock crew, the mount can be reloaded in 10.4 seconds; with an aced crew, this is decreased to 8 seconds.<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="2" | Secondary armament guidance<br />
|-<br />
! Horizontal !! Vertical<br />
|-<br />
| ±180° || -10°/+60°<br />
|-<br />
|}<br />
<br />
There are three ammunition types available:<br />
<br />
* Universal: {{Annotation|HEF-T|High-explosive fragmentation tracer}}/{{Annotation|HEF-I|High-explosive fragmentation incendiary}}/{{Annotation|AP-T|Armour-piercing tracer}}<br />
<br />
* 20 mm HE: {{Annotation|HEF-T|High-explosive fragmentation tracer}}/{{Annotation|HEF-I|High-explosive fragmentation incendiary}}/{{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|HEF-I|High-explosive fragmentation incendiary}}<br />
<br />
* 20 mm AP: {{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|HEF-I|High-explosive fragmentation incendiary}}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="7" | Penetration statistics<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| Universal || 35 || 33 || 26 || 21 || 18 || 15<br />
|-<br />
| 20 mm HE || 35 || 33 || 26 || 21 || 18 || 15<br />
|-<br />
| 20 mm AP || 35 || 33 || 26 || 21 || 18 || 15<br />
|-<br />
|}<br />
<br />
The best ammunition type is the 20 mm HE belt, since it has the highest ratio of HE rounds to AP rounds, making it the most effective against both aircraft and the vast majority of surface targets. The Universal belt is a direct downgrade to the 20 mm HE belt in terms of damage, and the 20 mm AP belt isn't really worth taking due to its relatively low armour penetration. To deal with armoured opponents, use the primary 40 mm 2pdr QF Mk.IIc instead. Take only 20 mm HE.<br />
<br />
=== Anti-aircraft armament ===<br />
{{Specs-Fleet-AA}}<br />
<!-- ''An important part of the ship's armament responsible for air defence. Anti-aircraft armament is defined by the weapon chosen with the control <code>Select anti-aircraft weapons</code>. Talk about the ship's anti-air cannons and machine guns, the number of guns and their positions, their effective range, and about their overall effectiveness – including against surface targets. If there are no anti-aircraft armaments, remove this section.'' --><br />
{{main|Lewis 1916 (7.72 mm)}}<br />
<br />
The anti-aircraft armament consists of four 7.72 mm Lewis 1916 machine guns in two twin mounts, one on either side of the bridge. A total of 7,760 rounds of ammunition, or 80 magazines, are carried for both mounts, 1,940 rounds, or 20 magazines, per gun. Each gun has a magazine capacity of 97 rounds and a cycle rate of fire of 550 rounds/min. With a stock crew, the mount can be reloaded in 18.2 seconds; with an aced crew, this is decreased to 14 seconds. Horizontal and vertical traverse rates are not stated in-game. <br />
<br />
{{Notice|Turrets are named sequentially, clockwise, starting at the bow}}<br />
<br />
{| class="wikitable" style="text-align:center" width="65%"<br />
! colspan="8" | '''Guidance for the Anti-Aircraft Gun Turrets'''<br />
|-<br />
! colspan="2" rowspan="1" | No.1 Turret (starboard)<br />
! colspan="2" rowspan="1" | No.2 Turret (port)<br />
|-<br />
! Horizontal !! Vertical !! Horizontal !! Vertical<br />
|-<br />
| -45°/+170° || -5°/+60° || -170°/+45° || -5°/+60°<br />
|-<br />
|}<br />
<br />
Ammunition types cannot be selected for the anti-aircraft armament on MGB-75. Belt composition and penetration statistics are not stated in-game.<br />
<br />
=== Additional armament ===<br />
{{Specs-Fleet-Additional}}<br />
<!-- ''Describe the available additional armaments of the ship: depth charges, mines, torpedoes. Talk about their positions, available ammunition and launch features such as dead zones of torpedoes. If there is no additional armament, remove this section.'' --><br />
{{main|Mk.VII depth charge}}<br />
<br />
[[File:MGB-75_DCs.png|thumb|Mk.VII depth charges numbered 1-2 according to their drop order (click to expand).]]<br />
<br />
MGB-75 can carry two Mk.VII depth charges mounted amidships, one on each side in front of the twin 7.72 mm Lewis machinegun 1916 mounts facing outwards. The depth charges are dropped one at a time in this order (see the image):<br />
<br />
# Starboard side<br />
# Portside<br />
<br />
Before spawning, the detonation time delay can be set anywhere between 3 seconds and 10 seconds.<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="4" | '''Depth Charge Characteristics'''<br />
|-<br />
! Mass (kg)<br />
! Explosive Type<br />
! Explosive Mass (kg)<br />
! TNT Equivalent (kg)<br />
|-<br />
| 196 || TNT || 130 || 130<br />
|}<br />
<br />
== Usage in battles ==<br />
<!-- ''Describe the technique of using this ship, the characteristics of her use in a team and tips on strategy. Abstain from writing an entire guide – don't try to provide a single point of view, but give the reader food for thought. Talk about the most dangerous opponents for this vehicle and provide recommendations on fighting them. If necessary, note the specifics of playing with this vehicle in various modes (AB, RB, SB).'' --><br />
<br />
While the MGB-75's primary armament, the 40 mm 2pdr QF Mk.IIc, is a good weapon. It has a very good damage output, and, with a maximum range of roughly 3.1 km, it can outrange any opponent armed with 20 mm cannons. The gun can deal a lot of damage when the rounds hit; however, getting them to land may not always be the easiest task, mainly due to MGB-75's construction. MGB-75 has a relatively short hull, and she isn't particularly heavy for her size, so she is easily thrown around by rough waters. This, of course, makes accurately aiming the gun at long ranges practically impossible unless the sea is calm. In addition to this, MGB-75 has a planing hull, so the bow will lift out of the water when moving at high speeds. The 2pdr QF Mk.IIc can't depress far enough to compensate, so, when on the move, it won't actually be able to target most enemies in an area extending roughly 500 meters in front of the boat. Take care to either turn the hull or to slow down to engage enemies. Other shortcomings of the gun are its relatively long reload and that it's very easy to disable. For the former, if there are less than 20 or so rounds left in the magazine, it's best to fire off the remaining ammunition after each engagement to minimize the chance of needing to reload during the next engagement.<br />
<br />
If the 2pdr QF Mk.IIc is knocked out or if it is reloading, switch to the secondary twin 20 mm Oerlikon Mk.V cannons. These guns have a shorter reload than the 40 mm, and they have a much faster traverse and elevation rates, so it tends to be better for close engagements. Since the default position of the mount is to face directly aft, it's best to have it targeting the enemy currently being engaged (default: X + 2) when not in use in order to have it already facing the enemy if it's needed. Of course, this also means that it won't be able to target any other boats or aircraft while the current target is still selected, so try not to be tunnel-visioned and always keep an eye on the surroundings. Aside from that, just like the 2pdr QF Mk.IIc, always be aware of how much ammunition is left in the magazines. If there are less than 40 rounds of so rounds left between the two guns, fire off the remaining ammunition to load a full magazine.<br />
<br />
Be careful when engaging any enemy with 3-inch or larger guns. MGB-75 has large ammunition storages, and, if a 3-inch or larger HE round hits anywhere near the ammunition storages, especially the aft pair, it more often than not leads to an ammunition detonation. This is even more so with artillery fire. If the artillery warning displays, leave the area as soon as possible.<br />
<br />
The fore 40 mm 2pdr QF Mk.IIc cannon can fire in ~143° to either side, centred forwards. As mentioned before, a blind spot is created when moving at high speeds which prevents the gun from firing in an area that extends ~500 ahead and which covers ~45° to either side. The aft twin 20 mm Oerlikon Mk.V cannons can fire in all directions except for a ~45° arc, centred forwards. When moving at high speeds, this blind arc is increased to ~75°.<br />
<br />
;Ammunition Choices<br />
<br />
For the 40 mm 2pdr QF Mk.IIc cannon, the best ammunition choice is the 40 mm HE because it has the highest ratio of HE rounds to AP rounds, meaning that it will be the most effective against both aircraft and surface targets. The 40 mm HE belt should be the main ammunition choice, but a few of the 40 mm AP belt should also be taken into battle for use against armoured targets.<br />
<br />
For the 20 mm Oerlikon Mk.V cannons, the best ammunition choice is the 20 mm HE. There isn't much of a point in using the 20 mm AP belt because the primary armament is much more suited for engaging armoured targets anyway.<br />
<br />
;Depth Charges<br />
<br />
Being anti-submarine weapons and with the present lack of submarines in the game, there is practically no reason to use them. While they can be used against surface targets, this is extremely situational. Sailing up right next to a slower target and dropping a depth charge can lead to some success, though again, this is very situational. If attempting this, remember the order in which the depth charges drop and that there is no reason to use any depth charge activation time setting above the minimum 3 seconds, since higher delay times means the depth charge will sink further, and thus away, from the target. Again, it should be reiterated that this is very situational.<br />
<br />
There is no practical reason to take them into battle, especially since, if they're not dropped, they essentially become unarmoured ammo racks.<br />
<br />
=== Pros and cons ===<br />
<!-- ''Summarise and briefly evaluate the vehicle in terms of its characteristics and combat effectiveness. Mark its pros and cons in the bulleted list. Try not to use more than 6 points for each of the characteristics. Avoid using categorical definitions such as "bad", "good" and the like - use substitutions with softer forms such as "inadequate" and "effective".'' --><br />
<br />
'''Pros:'''<br />
* Powerful primary and secondary armament<br />
* Both primary and secondary armament can rotate 360°<br />
* Secondary armament: very good elevation and traverse rates; large magazine capacity; good firing arcs<br />
<br />
'''Cons:'''<br />
* Blind spot directly in front when moving at high speeds<br />
* Primary armament: long reload; easily disabled<br />
* Anti-aircraft armament: long reload; can only elevate 60°; low damage output<br />
* Unstable firing platform in rough waters<br />
* Large ammo racks<br />
<br />
== History ==<br />
<!-- ''Describe the history of the creation and combat usage of the ship in more detail than in the introduction. If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the ship and adding a block "/History" (example: <nowiki>https://wiki.warthunder.com/(Ship-name)/History</nowiki>) and add a link to it here using the <code>main</code> template. Be sure to reference text and sources by using <code><nowiki><ref></ref></nowiki></code>, as well as adding them at the end of the article with <code><nowiki><references /></nowiki></code>. This section may also include the ship's dev blog entry (if applicable) and the in-game encyclopedia description (under <code><nowiki>=== In-game description ===</nowiki></code>, also if applicable).'' --><br />
<br />
By early 1941, many of the British Power Boat Company (BPB) 60-foot, 63-foot, and 70-foot boats had been completed and were in Royal Navy Coastal Forces service, and already, their weaknesses began to show. The boats were small and lightly constructed, and the living condition for the crew was cramped. Additionally, because of their underpowered engines, they were slow. While their low top speed was certainly acceptable for the anti-submarine work, as they were initially built to perform, it was insufficient by 1941 as most of the boats had been converted into motor gun boats by this point. Thus, in 1941, BPB began designing a larger, faster boat.<br />
<br />
BPB's new design had a length of 71 feet 9 inches (21.9 m), a beam of 20 feet 7 inches (6.3 m), and a draught of about 4 feet 3 inches (1.3 m). It was powered by three Packard petrol engines driving three shafts which allowed it to achieve a top speed of 42 knots. The BPB 71'9" boats formed the bulk of Coastal Forces' MGB fleet until the introduction of the larger and more heavily-armed Fairmile D boats. In total, 96 boats were built:<br />
<br />
* MGBs 74-81: ordered in November 1940 as MA/SBs, all completed in 1942 as MGBs. Any surviving boats by September 1943 were refitted with a pair of 18-inch torpedo tubes and redesignated as MTBs 412-416. Any of the boats that survived the war were disposed of in October 1945.<br />
* MGBs 107-119: ordered in November 1940 as MA/SBs, canceled in March 1941, and reordered in February 1942, all completed in 1942 as MGBs. Any surviving boats by September 1943 were refitted with a pair of 18-inch torpedo tubes and redesignated as MTBs 417-418 and 430-438. Any of the boats that survived the war were disposed of either in March 1945 or in October 1945. Their fates are as follows:<br />
* MGBs 120-130: ordered in May 1942 as MGBs, all completed in 1943. All boats were refitted in September 1943 with a pair of 18-inch torpedo tubes and redesignated as MTBs 439-449. Most of the boats that survived the war were disposed of in October 1945.<br />
* MTBs 450-489: ordered as MGBs, all completed between 1943-1945 as MTBs. Any of the boats that survived the war were disposed of at various dates or used as controlled targets.<br />
* MTBs 490-500: ordered as MTBs, all completed between 1944-1945. Any of the boats that survived the war were disposed of at various dates or used as controlled targets, with the exception of MTB-496 and MTB-498. These were refurbished in 1949 and renumbered MTB-1596 and MTB-1598 to form the "Proud" class along with MTBs 1505-1509, MTB-1519, and MTB-1522. They were given the names "Proud Patriot" and "Proud Patroller", respectively. The "Proud" class boats were all sold in June 1958.<br />
* MTBs 501-509: ordered as MTBs, all completed in 1945. All of the bats survived the war. MTBs 501-504 were sold or disposed of at various dates. MTBs 505-509 were refurbished in 1949 and renumbered MTBs 1505-1509 to form the "Proud" class along with MTB-1596, MTB-1598, MTB-1519, and MTB-1522. They were given the names "Proud Fusilier", "Proud Grenadier", "Proud Guardsman", "Proud Highlander", and "Proud Knight", respectively. The "Proud" class boats were all sold in June 1958.<br />
* MTBs 519-522: ordered as MGBs, all completed in 1946 as MTBs. With the exception of MTB-520, they were refurbished in 1949 and renumbered MTB-1519, MTB-1521, and MTB-1522. MTB-1519 and MTB-1522 formed the "Proud" class along with MTBs 1505-1509, MTB-1596, and MTB-1598. They were given the names "Proud Lancer" and "Proud Legionary", respectively. The "Proud" class boats were all sold in June 1958.<br />
<br />
MGB-75 was part of the original order placed in November 1940. She was ordered as a motor anti-submarine boat but was completed on 8th May 1942 as a motor gun boat. MGB-75 was commanded by the following:<br />
<br />
* T/Lt. L.G.R. Campbell, RNVR: October 1942 to February 1943<br />
* T/S.Lt. F.J. Head, RNVR: April 1943 to June 1943<br />
* T/S.Lt. W.G.L. Salmon, RNVR: From June 1944 onwards<br />
<br />
MGB-75 served as part of the 6th MGB Flotilla with HMS Beehive at Felixstowe through 1943. In September 1943, MGB-75 received her refit and was redesignated as MTB-413. Through 1944, MTB-413 served as part of the 1st MTB Flotilla at Portsmouth. MTB-413 survived the war and was disposed of in October 1945.<br />
<br />
== Media ==<br />
<!-- ''Excellent additions to the article would be video guides, screenshots from the game, and photos.'' --><br />
<br />
<div class="portale" align="center"><br />
{| class="catlist" frame="box" style="background: #efefef;" align="center"<br />
|<span style="white-space:nowrap;">[[File:GEN_LIVE_WT_1_HPL.jpg|510px|link=https://live.warthunder.com/feed/camouflages/?vehicleCountry=britain&vehicleType=ship&vehicleClass=gun_boat&vehicle=uk_71ft_mgb|]]</span> ||<br />
|-<br />
|}<br />
</div><br />
<br />
== See also ==<br />
<!-- ''Links to articles on the War Thunder Wiki that you think will be useful for the reader, for example:''<br />
* ''reference to the series of the ship;''<br />
* ''links to approximate analogues of other nations and research trees.'' --><br />
<br />
* {{Specs-Link|uk_fairmile_a_ml100}}<br />
* {{Specs-Link|uk_70ft_mgb}}<br />
* {{Specs-Link|uk_dark_class}}<br />
<br />
== External links ==<br />
<!-- ''Paste links to sources and external resources, such as:''<br />
* ''topic on the official game forum;''<br />
* ''encyclopedia page on the ship;''<br />
* ''other literature.'' --><br />
<br />
* [http://cfv.org.uk/research/boat/database Coastal Forces Veterans - Boat Database]<br />
* [https://www.unithistories.com/units_british/RN_CoastalForces.html#MGB%20Boats unithistories.com - Royal Navy Coastal Forces 1940-1945]<br />
* [http://www.naval-history.net/WW2BritishLosses3Coastal.htm naval-history.net - British vessels lost at sea in World War 2 - MGB, MTB, SGB, ML, etc] - originally published in ''British Vessels Lost at Sea, 1935-45'', His Majesty's Stationary Office, 1947<br />
* [http://www.navypedia.org/ships/uk/brit_c_f_mtb412.htm NAVYPEDIA - MTB412 motor torpedo boats (93, 1942 - 1946)]<br />
* [https://uboat.net/allies/warships/class.html?ID=673&navy=HMS uboat.net - BPB 72 feet-type class]<br />
* [https://www.yalumba.co.uk/Framesets/British%20Power%20Boat%20Co%20-%20Page%204,%20MGBs.html yalumba.co.uk - British Power Boat Co Page 4]<br />
* [http://www.coastal-forces.org.uk/boats.html Coastal Forces Heritage Trust - Boats]<br />
<br />
===Bibliography===<br />
<br />
* Konstam, Angus (2010). ''British Motor Gun Boat 1939–45''. Osprey Publishing Ltd. ISBN 978-1-84908-077-4.<br />
<br />
{{Britain boats}}<br />
{{Britain premium ships}}</div>U27474208https://old-wiki.warthunder.com/index.php?title=MGB-75&diff=103977MGB-752021-05-31T10:00:56Z<p>U27474208: /* Secondary armament */ Updated to 2.5</p>
<hr />
<div>{{Specs-Card<br />
|code=uk_71ft_mgb<br />
|images={{Specs-Card-Image|GarageImage_{{PAGENAME}}.jpg}}<br />
}}<br />
<br />
== Description ==<br />
<!-- ''In the first part of the description, cover the history of the ship's creation and military application. In the second part, tell the reader about using this ship in the game. Add a screenshot: if a beginner player has a hard time remembering vehicles by name, a picture will help them identify the ship in question.'' --><br />
The '''{{Specs|name}}''' is a premium rank {{Specs|rank}} British motor gun boat {{Battle-rating}}. It was introduced in [[Update 1.91 "Night Vision"]]. Originally a rank I vessel, with the split of the naval tech trees in [[Update "New Power"]], {{PAGENAME}} was moved to rank II in the coastal fleet tech tree.<br />
<br />
== General info ==<br />
=== Survivability and armour ===<br />
{{Specs-Fleet-Armour}}<br />
<!-- ''Talk about the vehicle's armour. Note the most well-defended and most vulnerable zones, e.g. the ammo magazine. Evaluate the composition of components and assemblies responsible for movement and manoeuvrability. Evaluate the survivability of the primary and secondary armaments separately. Don't forget to mention the size of the crew, which plays an important role in fleet mechanics. Save tips on preserving survivability for the "Usage in battles" section. If necessary, use a graphical template to show the most well-protected or most vulnerable points in the armour.'' --><br />
<br />
MGB-75 has the following armour layout:<br />
<br />
* [[2pdr QF Mk.IIc (40 mm)|2pdr QF Mk.IIc]] gunshield: 12.7 mm hardened armour<br />
* [[20 mm/70 Oerlikon Mark V (20 mm)|20 mm/70 Oerlikon Mark V]] gunshield: 12.7 mm hardened armour<br />
* Hull: 40 mm, wood<br />
* Superstructure: 15 mm, wood<br />
<br />
[[File:MGB-75_internals.png|thumb|MGB-75 internals (starboard side).]]<br />
<br />
Like most coastal vessels, MGB-75 has no practical armour. The gunshields are largely superficial; while they may stop low-calibre machine guns, heavy machine guns and cannons will easily penetrate them at any range. The hull and superstructure are unarmoured and will not stop any sort of gunfire.<br />
<br />
The hull is split into three hull sections. Starting from the bow and working towards the stern, the first section starts at the bow and ends just in front of forward gun; the second ends after the bridge, forward of the engines; and the third ends at the stern. <br />
<br />
Any round with a large enough diameter and explosive mass can hull break MGB-75. In general, this is limited to HE rounds with a diameter greater than 4 inches (102 mm) and with an explosive mass greater than 1.5 kg. At MGB-75's battle rating, the only guns that can hull break her are:<br />
<br />
* the [[10.5 cm SK C/32 (105 mm)|10.5 cm SK C/32]], found on {{Specs-Link|germ_escort_typem1943}}; and<br />
* the [[8cwt QF Mk I (114 mm)|114 mm 8cwt QF Mk I]], found on {{Specs-Link|uk_dark_class}}. <br />
<br />
There are two ammunition storages. The first ammunition storage, which holds ammunition for the primary armament, is located in the hull above the waterline, below and slightly in front of the forward gun turret. The second ammunition storage, which holds ammunition for both the secondary and AA armament, is located above deck, in front of the aft gun turret. Destroying either will instantly destroy MGB-75. Since it is located above deck, the second ammunition storage is particularly susceptible to detonation by random gunfire or artillery.<br />
<br />
MGB-75 has a crew complement of 12. With a stock crew, MGB-75 is knocked out when 8 crew are lost; with an aced crew, this is increased to 9. Overall, survivability is below-average. <br />
<br />
=== Mobility ===<br />
{{Specs-Fleet-Mobility}}<br />
<!-- ''Write about the ship's mobility. Evaluate its power and manoeuvrability, rudder rerouting speed, stopping speed at full tilt, with its maximum forward and reverse speed.'' --><br />
<br />
{{NavalMobility<br />
|SpeedForwardStockAB = 77<br />
|SpeedBackStockAB = 21<br />
|TurnTimeStockAB = 29.18<br />
|TurnSpeedStockAB = 43<br />
<br />
|TurnTimeSpadedAB = 19.63<br />
|TurnSpeedSpadedAB = 40<br />
<br />
|SpeedForwardStockRB = 67<br />
|SpeedBackStockRB = 19<br />
|TurnTimeStockRB = 32.40<br />
|TurnSpeedStockRB = 45<br />
<br />
|TurnTimeSpadedRB = 26.30<br />
|TurnSpeedSpadedRB = 43<br />
}}<br />
<br />
When moving forwards at high speeds, the bow will lift out of the water. This creates a blind spot where the 40 mm 2pdr QF Mk.IIc is unable to depress far enough to hit the waterline in an area ~400 m in front of the boat.<br />
<br />
MGB-75 has a displacement of 51.5 tons.<br />
<br />
=== Modifications and economy ===<br />
{{Specs-Economy}}<br />
<br />
As a premium vehicle, all modifications are unlocked for free. <br />
<br />
== Armament ==<br />
{{Specs-Fleet-Armaments}}<br />
=== Primary armament ===<br />
{{Specs-Fleet-Primary}}<br />
<!-- ''Provide information about the characteristics of the primary armament. Evaluate their efficacy in battle based on their reload speed, ballistics and the capacity of their shells. Add a link to the main article about the weapon: <code><nowiki>{{main|Weapon name (calibre)}}</nowiki></code>. Broadly describe the ammunition available for the primary armament, and provide recommendations on how to use it and which ammunition to choose.'' --><br />
{{main|2pdr QF Mk.IIc (40 mm)}}<br />
<br />
The primary armament consists of a single 40 mm 2pdr QF Mk.IIc cannon mounted forwards in front of the bridge. Stock, the mount can traverse horizontally at a rate of 34°/s and vertically at a rate of 21°/s; with the "Primary Armament Targeting" modification installed, this is increased to 40°/s and 25°/s respectively. With a full ammunition load, there are 2,240 rounds of ammunition, or 40 magazines, available for the mount. The gun has a magazine capacity of 56 rounds and a cycle rate of fire of 200 rounds/min. With a stock crew, it can be reloaded in 7.8 seconds; with an aced crew, this is decreased to 6 seconds.<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="2" | Primary aramament guidance<br />
|-<br />
! Horizontal !! Vertical<br />
|-<br />
| ±180° || -5°/+70°<br />
|-<br />
|}<br />
<br />
There are three ammunition types available:<br />
<br />
* Universal: {{Annotation|HEF|High-explosive fragmentation}}/{{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|HEF|High-explosive fragmentation}}/{{Annotation|AP-T|Armour-piercing tracer}}<br />
* 40 mm HE: {{Annotation|HEF|High-explosive fragmentation}}/{{Annotation|HEF|High-explosive fragmentation}}/{{Annotation|HEF|High-explosive fragmentation}}/{{Annotation|AP-T|Armour-piercing tracer}}<br />
* 40 mm AP: {{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|HEF|High-explosive fragmentation}}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="7" | Penetration statistics<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| Universal || 60 || 57 || 50 || 43 || 38 || 34<br />
|-<br />
| 40 mm HE || 60 || 57 || 50 || 43 || 38 || 34<br />
|-<br />
| 40 mm AP || 60 || 57 || 50 || 43 || 38 || 34<br />
|-<br />
|}<br />
<br />
The best ammunition type is 40 mm HE, since it has the highest ratio of HE rounds to AP rounds, making it the most effective against both aircraft and the vast majority of surface targets. Take mostly 40 mm HE along with a several magazines of 40 mm AP for armoured targets.<br />
<br />
=== Secondary armament ===<br />
{{Specs-Fleet-Secondary}}<br />
<!-- ''Some ships are fitted with weapons of various calibres. Secondary armaments are defined as weapons chosen with the control <code>Select secondary weapon</code>. Evaluate the secondary armaments and give advice on how to use them. Describe the ammunition available for the secondary armament. Provide recommendations on how to use them and which ammunition to choose. Remember that any anti-air armament, even heavy calibre weapons, belong in the next section. If there is no secondary armament, remove this section.'' --><br />
{{main|20 mm/70 Oerlikon Mark V (20 mm)}}<br />
<br />
The primary armament consists of two 20 mm/70 Oerlikon Mark V cannons mounted forwards in a twin mount aft. Stock, the mount can traverse horizontally at a rate of 51°/s and vertically at a rate of 43°/s; with the "Secondary Armament Targeting" modification installed, this is increased to 60°/s and 50°/s respectively. With a full ammunition load, there are 3,600 rounds of ammunition, or 60 magazines, available for the mount. Each gun has a magazine capacity of 60 rounds and a cycle rate of fire of 450 rounds/min, though the gun on the gunner's left side fires at a slightly faster rate, around 485 rounds/min. With a stock crew, the mount can be reloaded in 10.4 seconds; with an aced crew, this is decreased to 8 seconds.<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="2" | Secondary armament guidance<br />
|-<br />
! Horizontal !! Vertical<br />
|-<br />
| ±180° || -10°/+60°<br />
|-<br />
|}<br />
<br />
There are three ammunition types available:<br />
<br />
* Universal: {{Annotation|HEF-T|High-explosive fragmentation tracer}}/{{Annotation|HEF-I|High-explosive fragmentation incendiary}}/{{Annotation|AP-T|Armour-piercing tracer}}<br />
<br />
* 20 mm HE: {{Annotation|HEF-T|High-explosive fragmentation tracer}}/{{Annotation|HEF-I|High-explosive fragmentation incendiary}}/{{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|HEF-I|High-explosive fragmentation incendiary}}<br />
<br />
* 20 mm AP: {{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|HEF-I|High-explosive fragmentation incendiary}}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="7" | Penetration statistics<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| Universal || 35 || 33 || 26 || 21 || 18 || 15<br />
|-<br />
| 20 mm HE || 35 || 33 || 26 || 21 || 18 || 15<br />
|-<br />
| 20 mm AP || 35 || 33 || 26 || 21 || 18 || 15<br />
|-<br />
|}<br />
<br />
The best ammunition type is the 20 mm HE belt, since it has the highest ratio of HE rounds to AP rounds, making it the most effective against both aircraft and the vast majority of surface targets. The Universal belt is a direct downgrade to the 20 mm HE belt in terms of damage, and the 20 mm AP belt isn't really worth taking due to its relatively low armour penetration. To deal with armoured opponents, use the primary 40 mm 2pdr QF Mk.IIc instead. Take only 20 mm HE.<br />
<br />
=== Anti-aircraft armament ===<br />
{{Specs-Fleet-AA}}<br />
<!-- ''An important part of the ship's armament responsible for air defence. Anti-aircraft armament is defined by the weapon chosen with the control <code>Select anti-aircraft weapons</code>. Talk about the ship's anti-air cannons and machine guns, the number of guns and their positions, their effective range, and about their overall effectiveness – including against surface targets. If there are no anti-aircraft armaments, remove this section.'' --><br />
{{main|Lewis 1916 (7.72 mm)}}<br />
<br />
In her anti-aircraft armament group, MGB-75 has four 7.72 mm Lewis machinegun 1916s in two twin mounts, one on either side of the bridge. For each mount, there are 1,940 rounds of ammunition available, 970 rounds per gun, for a total of 3,880 rounds. There are no stated horizontal or vertical traverse rates given in-game, but the mounts handle very similarly, if not exactly, like other twin and quadruple 7.72 mm Lewis machinegun 1916 mounts which can traverse horizontally at a rate of 75°/s and vertically at a rate of 75°/s. Each gun has a magazine capacity of 97 rounds and has a rate of fire of 550 rounds/min. With a stock crew, the guns can be reloaded in 18.2 seconds; with an aced crew, they can be reloaded in 14 seconds. Their maximum range against surface targets is roughly 1.6 km.<br />
<br />
{{Notice|Turrets are named sequentially, clockwise, starting at the bow}}<br />
<br />
{| class="wikitable" style="text-align:center" width="65%"<br />
! colspan="8" | '''Guidance for the Anti-Aircraft Gun Turrets'''<br />
|-<br />
! colspan="2" rowspan="1" | No.1 Turret (starboard)<br />
! colspan="2" rowspan="1" | No.2 Turret (port)<br />
|-<br />
! Horizontal !! Vertical !! Horizontal !! Vertical<br />
|-<br />
| -45°/+170° || -5°/+60° || -170°/+45° || -5°/+60°<br />
|-<br />
|}<br />
<br />
There are no choices available. Though not directly stated in-game, there is one tracer round every other round, so the guns most likely fire the standard default ammunition choice of the 7.72 mm Lewis machinegun 1916, which has the following composition:<br />
<br />
* Default: {{Annotation|AP|Armour-piercing}}/{{Annotation|T|Tracer}}/{{Annotation|AP|Armour-piercing}}/{{Annotation|T|Tracer}}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="7" | '''Penetration Statistics'''<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! colspan="6" | '''Penetration @ 0° Angle of Attack (mm)'''<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| Default || 20 || 19 || 16 || 13 || 11 || 10<br />
|-<br />
|}<br />
<br />
=== Additional armament ===<br />
{{Specs-Fleet-Additional}}<br />
<!-- ''Describe the available additional armaments of the ship: depth charges, mines, torpedoes. Talk about their positions, available ammunition and launch features such as dead zones of torpedoes. If there is no additional armament, remove this section.'' --><br />
{{main|Mk.VII depth charge}}<br />
<br />
[[File:MGB-75_DCs.png|thumb|Mk.VII depth charges numbered 1-2 according to their drop order (click to expand).]]<br />
<br />
MGB-75 can carry two Mk.VII depth charges mounted amidships, one on each side in front of the twin 7.72 mm Lewis machinegun 1916 mounts facing outwards. The depth charges are dropped one at a time in this order (see the image):<br />
<br />
# Starboard side<br />
# Portside<br />
<br />
Before spawning, the detonation time delay can be set anywhere between 3 seconds and 10 seconds.<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="4" | '''Depth Charge Characteristics'''<br />
|-<br />
! Mass (kg)<br />
! Explosive Type<br />
! Explosive Mass (kg)<br />
! TNT Equivalent (kg)<br />
|-<br />
| 196 || TNT || 130 || 130<br />
|}<br />
<br />
== Usage in battles ==<br />
<!-- ''Describe the technique of using this ship, the characteristics of her use in a team and tips on strategy. Abstain from writing an entire guide – don't try to provide a single point of view, but give the reader food for thought. Talk about the most dangerous opponents for this vehicle and provide recommendations on fighting them. If necessary, note the specifics of playing with this vehicle in various modes (AB, RB, SB).'' --><br />
<br />
While the MGB-75's primary armament, the 40 mm 2pdr QF Mk.IIc, is a good weapon. It has a very good damage output, and, with a maximum range of roughly 3.1 km, it can outrange any opponent armed with 20 mm cannons. The gun can deal a lot of damage when the rounds hit; however, getting them to land may not always be the easiest task, mainly due to MGB-75's construction. MGB-75 has a relatively short hull, and she isn't particularly heavy for her size, so she is easily thrown around by rough waters. This, of course, makes accurately aiming the gun at long ranges practically impossible unless the sea is calm. In addition to this, MGB-75 has a planing hull, so the bow will lift out of the water when moving at high speeds. The 2pdr QF Mk.IIc can't depress far enough to compensate, so, when on the move, it won't actually be able to target most enemies in an area extending roughly 500 meters in front of the boat. Take care to either turn the hull or to slow down to engage enemies. Other shortcomings of the gun are its relatively long reload and that it's very easy to disable. For the former, if there are less than 20 or so rounds left in the magazine, it's best to fire off the remaining ammunition after each engagement to minimize the chance of needing to reload during the next engagement.<br />
<br />
If the 2pdr QF Mk.IIc is knocked out or if it is reloading, switch to the secondary twin 20 mm Oerlikon Mk.V cannons. These guns have a shorter reload than the 40 mm, and they have a much faster traverse and elevation rates, so it tends to be better for close engagements. Since the default position of the mount is to face directly aft, it's best to have it targeting the enemy currently being engaged (default: X + 2) when not in use in order to have it already facing the enemy if it's needed. Of course, this also means that it won't be able to target any other boats or aircraft while the current target is still selected, so try not to be tunnel-visioned and always keep an eye on the surroundings. Aside from that, just like the 2pdr QF Mk.IIc, always be aware of how much ammunition is left in the magazines. If there are less than 40 rounds of so rounds left between the two guns, fire off the remaining ammunition to load a full magazine.<br />
<br />
Be careful when engaging any enemy with 3-inch or larger guns. MGB-75 has large ammunition storages, and, if a 3-inch or larger HE round hits anywhere near the ammunition storages, especially the aft pair, it more often than not leads to an ammunition detonation. This is even more so with artillery fire. If the artillery warning displays, leave the area as soon as possible.<br />
<br />
The fore 40 mm 2pdr QF Mk.IIc cannon can fire in ~143° to either side, centred forwards. As mentioned before, a blind spot is created when moving at high speeds which prevents the gun from firing in an area that extends ~500 ahead and which covers ~45° to either side. The aft twin 20 mm Oerlikon Mk.V cannons can fire in all directions except for a ~45° arc, centred forwards. When moving at high speeds, this blind arc is increased to ~75°.<br />
<br />
;Ammunition Choices<br />
<br />
For the 40 mm 2pdr QF Mk.IIc cannon, the best ammunition choice is the 40 mm HE because it has the highest ratio of HE rounds to AP rounds, meaning that it will be the most effective against both aircraft and surface targets. The 40 mm HE belt should be the main ammunition choice, but a few of the 40 mm AP belt should also be taken into battle for use against armoured targets.<br />
<br />
For the 20 mm Oerlikon Mk.V cannons, the best ammunition choice is the 20 mm HE. There isn't much of a point in using the 20 mm AP belt because the primary armament is much more suited for engaging armoured targets anyway.<br />
<br />
;Depth Charges<br />
<br />
Being anti-submarine weapons and with the present lack of submarines in the game, there is practically no reason to use them. While they can be used against surface targets, this is extremely situational. Sailing up right next to a slower target and dropping a depth charge can lead to some success, though again, this is very situational. If attempting this, remember the order in which the depth charges drop and that there is no reason to use any depth charge activation time setting above the minimum 3 seconds, since higher delay times means the depth charge will sink further, and thus away, from the target. Again, it should be reiterated that this is very situational.<br />
<br />
There is no practical reason to take them into battle, especially since, if they're not dropped, they essentially become unarmoured ammo racks.<br />
<br />
=== Pros and cons ===<br />
<!-- ''Summarise and briefly evaluate the vehicle in terms of its characteristics and combat effectiveness. Mark its pros and cons in the bulleted list. Try not to use more than 6 points for each of the characteristics. Avoid using categorical definitions such as "bad", "good" and the like - use substitutions with softer forms such as "inadequate" and "effective".'' --><br />
<br />
'''Pros:'''<br />
* Powerful primary and secondary armament<br />
* Both primary and secondary armament can rotate 360°<br />
* Secondary armament: very good elevation and traverse rates; large magazine capacity; good firing arcs<br />
<br />
'''Cons:'''<br />
* Blind spot directly in front when moving at high speeds<br />
* Primary armament: long reload; easily disabled<br />
* Anti-aircraft armament: long reload; can only elevate 60°; low damage output<br />
* Unstable firing platform in rough waters<br />
* Large ammo racks<br />
<br />
== History ==<br />
<!-- ''Describe the history of the creation and combat usage of the ship in more detail than in the introduction. If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the ship and adding a block "/History" (example: <nowiki>https://wiki.warthunder.com/(Ship-name)/History</nowiki>) and add a link to it here using the <code>main</code> template. Be sure to reference text and sources by using <code><nowiki><ref></ref></nowiki></code>, as well as adding them at the end of the article with <code><nowiki><references /></nowiki></code>. This section may also include the ship's dev blog entry (if applicable) and the in-game encyclopedia description (under <code><nowiki>=== In-game description ===</nowiki></code>, also if applicable).'' --><br />
<br />
By early 1941, many of the British Power Boat Company (BPB) 60-foot, 63-foot, and 70-foot boats had been completed and were in Royal Navy Coastal Forces service, and already, their weaknesses began to show. The boats were small and lightly constructed, and the living condition for the crew was cramped. Additionally, because of their underpowered engines, they were slow. While their low top speed was certainly acceptable for the anti-submarine work, as they were initially built to perform, it was insufficient by 1941 as most of the boats had been converted into motor gun boats by this point. Thus, in 1941, BPB began designing a larger, faster boat.<br />
<br />
BPB's new design had a length of 71 feet 9 inches (21.9 m), a beam of 20 feet 7 inches (6.3 m), and a draught of about 4 feet 3 inches (1.3 m). It was powered by three Packard petrol engines driving three shafts which allowed it to achieve a top speed of 42 knots. The BPB 71'9" boats formed the bulk of Coastal Forces' MGB fleet until the introduction of the larger and more heavily-armed Fairmile D boats. In total, 96 boats were built:<br />
<br />
* MGBs 74-81: ordered in November 1940 as MA/SBs, all completed in 1942 as MGBs. Any surviving boats by September 1943 were refitted with a pair of 18-inch torpedo tubes and redesignated as MTBs 412-416. Any of the boats that survived the war were disposed of in October 1945.<br />
* MGBs 107-119: ordered in November 1940 as MA/SBs, canceled in March 1941, and reordered in February 1942, all completed in 1942 as MGBs. Any surviving boats by September 1943 were refitted with a pair of 18-inch torpedo tubes and redesignated as MTBs 417-418 and 430-438. Any of the boats that survived the war were disposed of either in March 1945 or in October 1945. Their fates are as follows:<br />
* MGBs 120-130: ordered in May 1942 as MGBs, all completed in 1943. All boats were refitted in September 1943 with a pair of 18-inch torpedo tubes and redesignated as MTBs 439-449. Most of the boats that survived the war were disposed of in October 1945.<br />
* MTBs 450-489: ordered as MGBs, all completed between 1943-1945 as MTBs. Any of the boats that survived the war were disposed of at various dates or used as controlled targets.<br />
* MTBs 490-500: ordered as MTBs, all completed between 1944-1945. Any of the boats that survived the war were disposed of at various dates or used as controlled targets, with the exception of MTB-496 and MTB-498. These were refurbished in 1949 and renumbered MTB-1596 and MTB-1598 to form the "Proud" class along with MTBs 1505-1509, MTB-1519, and MTB-1522. They were given the names "Proud Patriot" and "Proud Patroller", respectively. The "Proud" class boats were all sold in June 1958.<br />
* MTBs 501-509: ordered as MTBs, all completed in 1945. All of the bats survived the war. MTBs 501-504 were sold or disposed of at various dates. MTBs 505-509 were refurbished in 1949 and renumbered MTBs 1505-1509 to form the "Proud" class along with MTB-1596, MTB-1598, MTB-1519, and MTB-1522. They were given the names "Proud Fusilier", "Proud Grenadier", "Proud Guardsman", "Proud Highlander", and "Proud Knight", respectively. The "Proud" class boats were all sold in June 1958.<br />
* MTBs 519-522: ordered as MGBs, all completed in 1946 as MTBs. With the exception of MTB-520, they were refurbished in 1949 and renumbered MTB-1519, MTB-1521, and MTB-1522. MTB-1519 and MTB-1522 formed the "Proud" class along with MTBs 1505-1509, MTB-1596, and MTB-1598. They were given the names "Proud Lancer" and "Proud Legionary", respectively. The "Proud" class boats were all sold in June 1958.<br />
<br />
MGB-75 was part of the original order placed in November 1940. She was ordered as a motor anti-submarine boat but was completed on 8th May 1942 as a motor gun boat. MGB-75 was commanded by the following:<br />
<br />
* T/Lt. L.G.R. Campbell, RNVR: October 1942 to February 1943<br />
* T/S.Lt. F.J. Head, RNVR: April 1943 to June 1943<br />
* T/S.Lt. W.G.L. Salmon, RNVR: From June 1944 onwards<br />
<br />
MGB-75 served as part of the 6th MGB Flotilla with HMS Beehive at Felixstowe through 1943. In September 1943, MGB-75 received her refit and was redesignated as MTB-413. Through 1944, MTB-413 served as part of the 1st MTB Flotilla at Portsmouth. MTB-413 survived the war and was disposed of in October 1945.<br />
<br />
== Media ==<br />
<!-- ''Excellent additions to the article would be video guides, screenshots from the game, and photos.'' --><br />
<br />
<div class="portale" align="center"><br />
{| class="catlist" frame="box" style="background: #efefef;" align="center"<br />
|<span style="white-space:nowrap;">[[File:GEN_LIVE_WT_1_HPL.jpg|510px|link=https://live.warthunder.com/feed/camouflages/?vehicleCountry=britain&vehicleType=ship&vehicleClass=gun_boat&vehicle=uk_71ft_mgb|]]</span> ||<br />
|-<br />
|}<br />
</div><br />
<br />
== See also ==<br />
<!-- ''Links to articles on the War Thunder Wiki that you think will be useful for the reader, for example:''<br />
* ''reference to the series of the ship;''<br />
* ''links to approximate analogues of other nations and research trees.'' --><br />
<br />
* {{Specs-Link|uk_fairmile_a_ml100}}<br />
* {{Specs-Link|uk_70ft_mgb}}<br />
* {{Specs-Link|uk_dark_class}}<br />
<br />
== External links ==<br />
<!-- ''Paste links to sources and external resources, such as:''<br />
* ''topic on the official game forum;''<br />
* ''encyclopedia page on the ship;''<br />
* ''other literature.'' --><br />
<br />
* [http://cfv.org.uk/research/boat/database Coastal Forces Veterans - Boat Database]<br />
* [https://www.unithistories.com/units_british/RN_CoastalForces.html#MGB%20Boats unithistories.com - Royal Navy Coastal Forces 1940-1945]<br />
* [http://www.naval-history.net/WW2BritishLosses3Coastal.htm naval-history.net - British vessels lost at sea in World War 2 - MGB, MTB, SGB, ML, etc] - originally published in ''British Vessels Lost at Sea, 1935-45'', His Majesty's Stationary Office, 1947<br />
* [http://www.navypedia.org/ships/uk/brit_c_f_mtb412.htm NAVYPEDIA - MTB412 motor torpedo boats (93, 1942 - 1946)]<br />
* [https://uboat.net/allies/warships/class.html?ID=673&navy=HMS uboat.net - BPB 72 feet-type class]<br />
* [https://www.yalumba.co.uk/Framesets/British%20Power%20Boat%20Co%20-%20Page%204,%20MGBs.html yalumba.co.uk - British Power Boat Co Page 4]<br />
* [http://www.coastal-forces.org.uk/boats.html Coastal Forces Heritage Trust - Boats]<br />
<br />
===Bibliography===<br />
<br />
* Konstam, Angus (2010). ''British Motor Gun Boat 1939–45''. Osprey Publishing Ltd. ISBN 978-1-84908-077-4.<br />
<br />
{{Britain boats}}<br />
{{Britain premium ships}}</div>U27474208https://old-wiki.warthunder.com/index.php?title=MGB-75&diff=103976MGB-752021-05-31T07:11:17Z<p>U27474208: /* Primary armament */ Updated to 2.5</p>
<hr />
<div>{{Specs-Card<br />
|code=uk_71ft_mgb<br />
|images={{Specs-Card-Image|GarageImage_{{PAGENAME}}.jpg}}<br />
}}<br />
<br />
== Description ==<br />
<!-- ''In the first part of the description, cover the history of the ship's creation and military application. In the second part, tell the reader about using this ship in the game. Add a screenshot: if a beginner player has a hard time remembering vehicles by name, a picture will help them identify the ship in question.'' --><br />
The '''{{Specs|name}}''' is a premium rank {{Specs|rank}} British motor gun boat {{Battle-rating}}. It was introduced in [[Update 1.91 "Night Vision"]]. Originally a rank I vessel, with the split of the naval tech trees in [[Update "New Power"]], {{PAGENAME}} was moved to rank II in the coastal fleet tech tree.<br />
<br />
== General info ==<br />
=== Survivability and armour ===<br />
{{Specs-Fleet-Armour}}<br />
<!-- ''Talk about the vehicle's armour. Note the most well-defended and most vulnerable zones, e.g. the ammo magazine. Evaluate the composition of components and assemblies responsible for movement and manoeuvrability. Evaluate the survivability of the primary and secondary armaments separately. Don't forget to mention the size of the crew, which plays an important role in fleet mechanics. Save tips on preserving survivability for the "Usage in battles" section. If necessary, use a graphical template to show the most well-protected or most vulnerable points in the armour.'' --><br />
<br />
MGB-75 has the following armour layout:<br />
<br />
* [[2pdr QF Mk.IIc (40 mm)|2pdr QF Mk.IIc]] gunshield: 12.7 mm hardened armour<br />
* [[20 mm/70 Oerlikon Mark V (20 mm)|20 mm/70 Oerlikon Mark V]] gunshield: 12.7 mm hardened armour<br />
* Hull: 40 mm, wood<br />
* Superstructure: 15 mm, wood<br />
<br />
[[File:MGB-75_internals.png|thumb|MGB-75 internals (starboard side).]]<br />
<br />
Like most coastal vessels, MGB-75 has no practical armour. The gunshields are largely superficial; while they may stop low-calibre machine guns, heavy machine guns and cannons will easily penetrate them at any range. The hull and superstructure are unarmoured and will not stop any sort of gunfire.<br />
<br />
The hull is split into three hull sections. Starting from the bow and working towards the stern, the first section starts at the bow and ends just in front of forward gun; the second ends after the bridge, forward of the engines; and the third ends at the stern. <br />
<br />
Any round with a large enough diameter and explosive mass can hull break MGB-75. In general, this is limited to HE rounds with a diameter greater than 4 inches (102 mm) and with an explosive mass greater than 1.5 kg. At MGB-75's battle rating, the only guns that can hull break her are:<br />
<br />
* the [[10.5 cm SK C/32 (105 mm)|10.5 cm SK C/32]], found on {{Specs-Link|germ_escort_typem1943}}; and<br />
* the [[8cwt QF Mk I (114 mm)|114 mm 8cwt QF Mk I]], found on {{Specs-Link|uk_dark_class}}. <br />
<br />
There are two ammunition storages. The first ammunition storage, which holds ammunition for the primary armament, is located in the hull above the waterline, below and slightly in front of the forward gun turret. The second ammunition storage, which holds ammunition for both the secondary and AA armament, is located above deck, in front of the aft gun turret. Destroying either will instantly destroy MGB-75. Since it is located above deck, the second ammunition storage is particularly susceptible to detonation by random gunfire or artillery.<br />
<br />
MGB-75 has a crew complement of 12. With a stock crew, MGB-75 is knocked out when 8 crew are lost; with an aced crew, this is increased to 9. Overall, survivability is below-average. <br />
<br />
=== Mobility ===<br />
{{Specs-Fleet-Mobility}}<br />
<!-- ''Write about the ship's mobility. Evaluate its power and manoeuvrability, rudder rerouting speed, stopping speed at full tilt, with its maximum forward and reverse speed.'' --><br />
<br />
{{NavalMobility<br />
|SpeedForwardStockAB = 77<br />
|SpeedBackStockAB = 21<br />
|TurnTimeStockAB = 29.18<br />
|TurnSpeedStockAB = 43<br />
<br />
|TurnTimeSpadedAB = 19.63<br />
|TurnSpeedSpadedAB = 40<br />
<br />
|SpeedForwardStockRB = 67<br />
|SpeedBackStockRB = 19<br />
|TurnTimeStockRB = 32.40<br />
|TurnSpeedStockRB = 45<br />
<br />
|TurnTimeSpadedRB = 26.30<br />
|TurnSpeedSpadedRB = 43<br />
}}<br />
<br />
When moving forwards at high speeds, the bow will lift out of the water. This creates a blind spot where the 40 mm 2pdr QF Mk.IIc is unable to depress far enough to hit the waterline in an area ~400 m in front of the boat.<br />
<br />
MGB-75 has a displacement of 51.5 tons.<br />
<br />
=== Modifications and economy ===<br />
{{Specs-Economy}}<br />
<br />
As a premium vehicle, all modifications are unlocked for free. <br />
<br />
== Armament ==<br />
{{Specs-Fleet-Armaments}}<br />
=== Primary armament ===<br />
{{Specs-Fleet-Primary}}<br />
<!-- ''Provide information about the characteristics of the primary armament. Evaluate their efficacy in battle based on their reload speed, ballistics and the capacity of their shells. Add a link to the main article about the weapon: <code><nowiki>{{main|Weapon name (calibre)}}</nowiki></code>. Broadly describe the ammunition available for the primary armament, and provide recommendations on how to use it and which ammunition to choose.'' --><br />
{{main|2pdr QF Mk.IIc (40 mm)}}<br />
<br />
The primary armament consists of a single 40 mm 2pdr QF Mk.IIc cannon mounted forwards in front of the bridge with a maximum ammunition load of 2,240 rounds, or 40 magazine. Stock, the mount can traverse horizontally at a rate of 34°/s and vertically at a rate of 21°/s; with the "Primary Armament Targeting" modification installed, this is increased to 40°/s and 25°/s respectively. The gun has a magazine capacity of 56 rounds and a cycle rate of fire of 200 rounds/min. With a stock crew, it can be reloaded in 7.8 seconds; with an aced crew, this is decreased to 6 seconds.<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="2" | Secondary aramament guidance<br />
|-<br />
! Horizontal !! Vertical<br />
|-<br />
| ±180° || -5°/+70°<br />
|-<br />
|}<br />
<br />
There are three ammunition types available:<br />
<br />
* Universal: {{Annotation|HEF|High-explosive fragmentation}}/{{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|HEF|High-explosive fragmentation}}/{{Annotation|AP-T|Armour-piercing tracer}}<br />
* 40 mm HE: {{Annotation|HEF|High-explosive fragmentation}}/{{Annotation|HEF|High-explosive fragmentation}}/{{Annotation|HEF|High-explosive fragmentation}}/{{Annotation|AP-T|Armour-piercing tracer}}<br />
* 40 mm AP: {{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|HEF|High-explosive fragmentation}}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="7" | '''Penetration Statistics'''<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! colspan="6" | '''Penetration @ 0° Angle of Attack (mm)'''<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| Universal || 60 || 57 || 50 || 43 || 38 || 34<br />
|-<br />
| 40 mm HE || 60 || 57 || 50 || 43 || 38 || 34<br />
|-<br />
| 40 mm AP || 60 || 57 || 50 || 43 || 38 || 34<br />
|-<br />
|}<br />
<br />
The best ammunition type is 40 mm HE, since it has the highest ratio of HE rounds to AP rounds. Take mostly 40 mm HE along with a several magazines of 40 mm AP for armoured targets.<br />
<br />
=== Secondary armament ===<br />
{{Specs-Fleet-Secondary}}<br />
<!-- ''Some ships are fitted with weapons of various calibres. Secondary armaments are defined as weapons chosen with the control <code>Select secondary weapon</code>. Evaluate the secondary armaments and give advice on how to use them. Describe the ammunition available for the secondary armament. Provide recommendations on how to use them and which ammunition to choose. Remember that any anti-air armament, even heavy calibre weapons, belong in the next section. If there is no secondary armament, remove this section.'' --><br />
{{main|20 mm/70 Oerlikon Mark V (20 mm)}}<br />
<br />
In her secondary armament group, MGB-75 has two 20 mm Oerlikon Mk.II in a twin mount, mounted centerline behind the bridge. It has 4,080 rounds of ammunition available, 2,040 per gun. The mount can traverse horizontally at a rate of 75°/s and vertically at a rate of 75°/s. Each gun has a magazine capacity of 60 rounds and has a stated rate of fire of 450 rounds/min, though in actuality, the gun on the gunner's left side fires at a faster around, 485 rounds/min. With a stock crew, the guns can be reloaded in 8 seconds; with an aced crew, they can be reloaded in 4 seconds. Their maximum range against surface targets is roughly 2.1 km.<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="2" | '''Guidance for the Secondary Gun Turret'''<br />
|-<br />
! Horizontal !! Vertical<br />
|-<br />
| ±180° || -10°/+60°<br />
|-<br />
|}<br />
<br />
There are three choices of ammunition available:<br />
<br />
* Universal: {{Annotation|HEF-T|High-explosive fragmentation tracer}}/{{Annotation|HEF-I|High-explosive fragmentation incendiary}}/{{Annotation|AP-T|Armour-piercing tracer}}<br />
<br />
* 20 mm HE: {{Annotation|HEF-T|High-explosive fragmentation tracer}}/{{Annotation|HEF-I|High-explosive fragmentation incendiary}}/{{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|HEF-I|High-explosive fragmentation incendiary}}<br />
<br />
* 20 mm AP: {{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|HEF-I|High-explosive fragmentation incendiary}}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="7" | '''Penetration Statistics'''<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! colspan="6" | '''Penetration @ 0° Angle of Attack (mm)'''<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| Universal || 39 || 36 || 29 || 23 || 20 || 17<br />
|-<br />
| 20 mm HE || 39 || 36 || 29 || 23 || 20 || 17<br />
|-<br />
| 20 mm AP || 39 || 36 || 29 || 23 || 20 || 17<br />
|-<br />
|}<br />
<br />
=== Anti-aircraft armament ===<br />
{{Specs-Fleet-AA}}<br />
<!-- ''An important part of the ship's armament responsible for air defence. Anti-aircraft armament is defined by the weapon chosen with the control <code>Select anti-aircraft weapons</code>. Talk about the ship's anti-air cannons and machine guns, the number of guns and their positions, their effective range, and about their overall effectiveness – including against surface targets. If there are no anti-aircraft armaments, remove this section.'' --><br />
{{main|Lewis 1916 (7.72 mm)}}<br />
<br />
In her anti-aircraft armament group, MGB-75 has four 7.72 mm Lewis machinegun 1916s in two twin mounts, one on either side of the bridge. For each mount, there are 1,940 rounds of ammunition available, 970 rounds per gun, for a total of 3,880 rounds. There are no stated horizontal or vertical traverse rates given in-game, but the mounts handle very similarly, if not exactly, like other twin and quadruple 7.72 mm Lewis machinegun 1916 mounts which can traverse horizontally at a rate of 75°/s and vertically at a rate of 75°/s. Each gun has a magazine capacity of 97 rounds and has a rate of fire of 550 rounds/min. With a stock crew, the guns can be reloaded in 18.2 seconds; with an aced crew, they can be reloaded in 14 seconds. Their maximum range against surface targets is roughly 1.6 km.<br />
<br />
{{Notice|Turrets are named sequentially, clockwise, starting at the bow}}<br />
<br />
{| class="wikitable" style="text-align:center" width="65%"<br />
! colspan="8" | '''Guidance for the Anti-Aircraft Gun Turrets'''<br />
|-<br />
! colspan="2" rowspan="1" | No.1 Turret (starboard)<br />
! colspan="2" rowspan="1" | No.2 Turret (port)<br />
|-<br />
! Horizontal !! Vertical !! Horizontal !! Vertical<br />
|-<br />
| -45°/+170° || -5°/+60° || -170°/+45° || -5°/+60°<br />
|-<br />
|}<br />
<br />
There are no choices available. Though not directly stated in-game, there is one tracer round every other round, so the guns most likely fire the standard default ammunition choice of the 7.72 mm Lewis machinegun 1916, which has the following composition:<br />
<br />
* Default: {{Annotation|AP|Armour-piercing}}/{{Annotation|T|Tracer}}/{{Annotation|AP|Armour-piercing}}/{{Annotation|T|Tracer}}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="7" | '''Penetration Statistics'''<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! colspan="6" | '''Penetration @ 0° Angle of Attack (mm)'''<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| Default || 20 || 19 || 16 || 13 || 11 || 10<br />
|-<br />
|}<br />
<br />
=== Additional armament ===<br />
{{Specs-Fleet-Additional}}<br />
<!-- ''Describe the available additional armaments of the ship: depth charges, mines, torpedoes. Talk about their positions, available ammunition and launch features such as dead zones of torpedoes. If there is no additional armament, remove this section.'' --><br />
{{main|Mk.VII depth charge}}<br />
<br />
[[File:MGB-75_DCs.png|thumb|Mk.VII depth charges numbered 1-2 according to their drop order (click to expand).]]<br />
<br />
MGB-75 can carry two Mk.VII depth charges mounted amidships, one on each side in front of the twin 7.72 mm Lewis machinegun 1916 mounts facing outwards. The depth charges are dropped one at a time in this order (see the image):<br />
<br />
# Starboard side<br />
# Portside<br />
<br />
Before spawning, the detonation time delay can be set anywhere between 3 seconds and 10 seconds.<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="4" | '''Depth Charge Characteristics'''<br />
|-<br />
! Mass (kg)<br />
! Explosive Type<br />
! Explosive Mass (kg)<br />
! TNT Equivalent (kg)<br />
|-<br />
| 196 || TNT || 130 || 130<br />
|}<br />
<br />
== Usage in battles ==<br />
<!-- ''Describe the technique of using this ship, the characteristics of her use in a team and tips on strategy. Abstain from writing an entire guide – don't try to provide a single point of view, but give the reader food for thought. Talk about the most dangerous opponents for this vehicle and provide recommendations on fighting them. If necessary, note the specifics of playing with this vehicle in various modes (AB, RB, SB).'' --><br />
<br />
While the MGB-75's primary armament, the 40 mm 2pdr QF Mk.IIc, is a good weapon. It has a very good damage output, and, with a maximum range of roughly 3.1 km, it can outrange any opponent armed with 20 mm cannons. The gun can deal a lot of damage when the rounds hit; however, getting them to land may not always be the easiest task, mainly due to MGB-75's construction. MGB-75 has a relatively short hull, and she isn't particularly heavy for her size, so she is easily thrown around by rough waters. This, of course, makes accurately aiming the gun at long ranges practically impossible unless the sea is calm. In addition to this, MGB-75 has a planing hull, so the bow will lift out of the water when moving at high speeds. The 2pdr QF Mk.IIc can't depress far enough to compensate, so, when on the move, it won't actually be able to target most enemies in an area extending roughly 500 meters in front of the boat. Take care to either turn the hull or to slow down to engage enemies. Other shortcomings of the gun are its relatively long reload and that it's very easy to disable. For the former, if there are less than 20 or so rounds left in the magazine, it's best to fire off the remaining ammunition after each engagement to minimize the chance of needing to reload during the next engagement.<br />
<br />
If the 2pdr QF Mk.IIc is knocked out or if it is reloading, switch to the secondary twin 20 mm Oerlikon Mk.V cannons. These guns have a shorter reload than the 40 mm, and they have a much faster traverse and elevation rates, so it tends to be better for close engagements. Since the default position of the mount is to face directly aft, it's best to have it targeting the enemy currently being engaged (default: X + 2) when not in use in order to have it already facing the enemy if it's needed. Of course, this also means that it won't be able to target any other boats or aircraft while the current target is still selected, so try not to be tunnel-visioned and always keep an eye on the surroundings. Aside from that, just like the 2pdr QF Mk.IIc, always be aware of how much ammunition is left in the magazines. If there are less than 40 rounds of so rounds left between the two guns, fire off the remaining ammunition to load a full magazine.<br />
<br />
Be careful when engaging any enemy with 3-inch or larger guns. MGB-75 has large ammunition storages, and, if a 3-inch or larger HE round hits anywhere near the ammunition storages, especially the aft pair, it more often than not leads to an ammunition detonation. This is even more so with artillery fire. If the artillery warning displays, leave the area as soon as possible.<br />
<br />
The fore 40 mm 2pdr QF Mk.IIc cannon can fire in ~143° to either side, centred forwards. As mentioned before, a blind spot is created when moving at high speeds which prevents the gun from firing in an area that extends ~500 ahead and which covers ~45° to either side. The aft twin 20 mm Oerlikon Mk.V cannons can fire in all directions except for a ~45° arc, centred forwards. When moving at high speeds, this blind arc is increased to ~75°.<br />
<br />
;Ammunition Choices<br />
<br />
For the 40 mm 2pdr QF Mk.IIc cannon, the best ammunition choice is the 40 mm HE because it has the highest ratio of HE rounds to AP rounds, meaning that it will be the most effective against both aircraft and surface targets. The 40 mm HE belt should be the main ammunition choice, but a few of the 40 mm AP belt should also be taken into battle for use against armoured targets.<br />
<br />
For the 20 mm Oerlikon Mk.V cannons, the best ammunition choice is the 20 mm HE. There isn't much of a point in using the 20 mm AP belt because the primary armament is much more suited for engaging armoured targets anyway.<br />
<br />
;Depth Charges<br />
<br />
Being anti-submarine weapons and with the present lack of submarines in the game, there is practically no reason to use them. While they can be used against surface targets, this is extremely situational. Sailing up right next to a slower target and dropping a depth charge can lead to some success, though again, this is very situational. If attempting this, remember the order in which the depth charges drop and that there is no reason to use any depth charge activation time setting above the minimum 3 seconds, since higher delay times means the depth charge will sink further, and thus away, from the target. Again, it should be reiterated that this is very situational.<br />
<br />
There is no practical reason to take them into battle, especially since, if they're not dropped, they essentially become unarmoured ammo racks.<br />
<br />
=== Pros and cons ===<br />
<!-- ''Summarise and briefly evaluate the vehicle in terms of its characteristics and combat effectiveness. Mark its pros and cons in the bulleted list. Try not to use more than 6 points for each of the characteristics. Avoid using categorical definitions such as "bad", "good" and the like - use substitutions with softer forms such as "inadequate" and "effective".'' --><br />
<br />
'''Pros:'''<br />
* Powerful primary and secondary armament<br />
* Both primary and secondary armament can rotate 360°<br />
* Secondary armament: very good elevation and traverse rates; large magazine capacity; good firing arcs<br />
<br />
'''Cons:'''<br />
* Blind spot directly in front when moving at high speeds<br />
* Primary armament: long reload; easily disabled<br />
* Anti-aircraft armament: long reload; can only elevate 60°; low damage output<br />
* Unstable firing platform in rough waters<br />
* Large ammo racks<br />
<br />
== History ==<br />
<!-- ''Describe the history of the creation and combat usage of the ship in more detail than in the introduction. If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the ship and adding a block "/History" (example: <nowiki>https://wiki.warthunder.com/(Ship-name)/History</nowiki>) and add a link to it here using the <code>main</code> template. Be sure to reference text and sources by using <code><nowiki><ref></ref></nowiki></code>, as well as adding them at the end of the article with <code><nowiki><references /></nowiki></code>. This section may also include the ship's dev blog entry (if applicable) and the in-game encyclopedia description (under <code><nowiki>=== In-game description ===</nowiki></code>, also if applicable).'' --><br />
<br />
By early 1941, many of the British Power Boat Company (BPB) 60-foot, 63-foot, and 70-foot boats had been completed and were in Royal Navy Coastal Forces service, and already, their weaknesses began to show. The boats were small and lightly constructed, and the living condition for the crew was cramped. Additionally, because of their underpowered engines, they were slow. While their low top speed was certainly acceptable for the anti-submarine work, as they were initially built to perform, it was insufficient by 1941 as most of the boats had been converted into motor gun boats by this point. Thus, in 1941, BPB began designing a larger, faster boat.<br />
<br />
BPB's new design had a length of 71 feet 9 inches (21.9 m), a beam of 20 feet 7 inches (6.3 m), and a draught of about 4 feet 3 inches (1.3 m). It was powered by three Packard petrol engines driving three shafts which allowed it to achieve a top speed of 42 knots. The BPB 71'9" boats formed the bulk of Coastal Forces' MGB fleet until the introduction of the larger and more heavily-armed Fairmile D boats. In total, 96 boats were built:<br />
<br />
* MGBs 74-81: ordered in November 1940 as MA/SBs, all completed in 1942 as MGBs. Any surviving boats by September 1943 were refitted with a pair of 18-inch torpedo tubes and redesignated as MTBs 412-416. Any of the boats that survived the war were disposed of in October 1945.<br />
* MGBs 107-119: ordered in November 1940 as MA/SBs, canceled in March 1941, and reordered in February 1942, all completed in 1942 as MGBs. Any surviving boats by September 1943 were refitted with a pair of 18-inch torpedo tubes and redesignated as MTBs 417-418 and 430-438. Any of the boats that survived the war were disposed of either in March 1945 or in October 1945. Their fates are as follows:<br />
* MGBs 120-130: ordered in May 1942 as MGBs, all completed in 1943. All boats were refitted in September 1943 with a pair of 18-inch torpedo tubes and redesignated as MTBs 439-449. Most of the boats that survived the war were disposed of in October 1945.<br />
* MTBs 450-489: ordered as MGBs, all completed between 1943-1945 as MTBs. Any of the boats that survived the war were disposed of at various dates or used as controlled targets.<br />
* MTBs 490-500: ordered as MTBs, all completed between 1944-1945. Any of the boats that survived the war were disposed of at various dates or used as controlled targets, with the exception of MTB-496 and MTB-498. These were refurbished in 1949 and renumbered MTB-1596 and MTB-1598 to form the "Proud" class along with MTBs 1505-1509, MTB-1519, and MTB-1522. They were given the names "Proud Patriot" and "Proud Patroller", respectively. The "Proud" class boats were all sold in June 1958.<br />
* MTBs 501-509: ordered as MTBs, all completed in 1945. All of the bats survived the war. MTBs 501-504 were sold or disposed of at various dates. MTBs 505-509 were refurbished in 1949 and renumbered MTBs 1505-1509 to form the "Proud" class along with MTB-1596, MTB-1598, MTB-1519, and MTB-1522. They were given the names "Proud Fusilier", "Proud Grenadier", "Proud Guardsman", "Proud Highlander", and "Proud Knight", respectively. The "Proud" class boats were all sold in June 1958.<br />
* MTBs 519-522: ordered as MGBs, all completed in 1946 as MTBs. With the exception of MTB-520, they were refurbished in 1949 and renumbered MTB-1519, MTB-1521, and MTB-1522. MTB-1519 and MTB-1522 formed the "Proud" class along with MTBs 1505-1509, MTB-1596, and MTB-1598. They were given the names "Proud Lancer" and "Proud Legionary", respectively. The "Proud" class boats were all sold in June 1958.<br />
<br />
MGB-75 was part of the original order placed in November 1940. She was ordered as a motor anti-submarine boat but was completed on 8th May 1942 as a motor gun boat. MGB-75 was commanded by the following:<br />
<br />
* T/Lt. L.G.R. Campbell, RNVR: October 1942 to February 1943<br />
* T/S.Lt. F.J. Head, RNVR: April 1943 to June 1943<br />
* T/S.Lt. W.G.L. Salmon, RNVR: From June 1944 onwards<br />
<br />
MGB-75 served as part of the 6th MGB Flotilla with HMS Beehive at Felixstowe through 1943. In September 1943, MGB-75 received her refit and was redesignated as MTB-413. Through 1944, MTB-413 served as part of the 1st MTB Flotilla at Portsmouth. MTB-413 survived the war and was disposed of in October 1945.<br />
<br />
== Media ==<br />
<!-- ''Excellent additions to the article would be video guides, screenshots from the game, and photos.'' --><br />
<br />
<div class="portale" align="center"><br />
{| class="catlist" frame="box" style="background: #efefef;" align="center"<br />
|<span style="white-space:nowrap;">[[File:GEN_LIVE_WT_1_HPL.jpg|510px|link=https://live.warthunder.com/feed/camouflages/?vehicleCountry=britain&vehicleType=ship&vehicleClass=gun_boat&vehicle=uk_71ft_mgb|]]</span> ||<br />
|-<br />
|}<br />
</div><br />
<br />
== See also ==<br />
<!-- ''Links to articles on the War Thunder Wiki that you think will be useful for the reader, for example:''<br />
* ''reference to the series of the ship;''<br />
* ''links to approximate analogues of other nations and research trees.'' --><br />
<br />
* {{Specs-Link|uk_fairmile_a_ml100}}<br />
* {{Specs-Link|uk_70ft_mgb}}<br />
* {{Specs-Link|uk_dark_class}}<br />
<br />
== External links ==<br />
<!-- ''Paste links to sources and external resources, such as:''<br />
* ''topic on the official game forum;''<br />
* ''encyclopedia page on the ship;''<br />
* ''other literature.'' --><br />
<br />
* [http://cfv.org.uk/research/boat/database Coastal Forces Veterans - Boat Database]<br />
* [https://www.unithistories.com/units_british/RN_CoastalForces.html#MGB%20Boats unithistories.com - Royal Navy Coastal Forces 1940-1945]<br />
* [http://www.naval-history.net/WW2BritishLosses3Coastal.htm naval-history.net - British vessels lost at sea in World War 2 - MGB, MTB, SGB, ML, etc] - originally published in ''British Vessels Lost at Sea, 1935-45'', His Majesty's Stationary Office, 1947<br />
* [http://www.navypedia.org/ships/uk/brit_c_f_mtb412.htm NAVYPEDIA - MTB412 motor torpedo boats (93, 1942 - 1946)]<br />
* [https://uboat.net/allies/warships/class.html?ID=673&navy=HMS uboat.net - BPB 72 feet-type class]<br />
* [https://www.yalumba.co.uk/Framesets/British%20Power%20Boat%20Co%20-%20Page%204,%20MGBs.html yalumba.co.uk - British Power Boat Co Page 4]<br />
* [http://www.coastal-forces.org.uk/boats.html Coastal Forces Heritage Trust - Boats]<br />
<br />
===Bibliography===<br />
<br />
* Konstam, Angus (2010). ''British Motor Gun Boat 1939–45''. Osprey Publishing Ltd. ISBN 978-1-84908-077-4.<br />
<br />
{{Britain boats}}<br />
{{Britain premium ships}}</div>U27474208https://old-wiki.warthunder.com/index.php?title=MGB-75&diff=103975MGB-752021-05-31T06:55:04Z<p>U27474208: /* Mobility */ Switched to NavalMoblity template; other minor edits</p>
<hr />
<div>{{Specs-Card<br />
|code=uk_71ft_mgb<br />
|images={{Specs-Card-Image|GarageImage_{{PAGENAME}}.jpg}}<br />
}}<br />
<br />
== Description ==<br />
<!-- ''In the first part of the description, cover the history of the ship's creation and military application. In the second part, tell the reader about using this ship in the game. Add a screenshot: if a beginner player has a hard time remembering vehicles by name, a picture will help them identify the ship in question.'' --><br />
The '''{{Specs|name}}''' is a premium rank {{Specs|rank}} British motor gun boat {{Battle-rating}}. It was introduced in [[Update 1.91 "Night Vision"]]. Originally a rank I vessel, with the split of the naval tech trees in [[Update "New Power"]], {{PAGENAME}} was moved to rank II in the coastal fleet tech tree.<br />
<br />
== General info ==<br />
=== Survivability and armour ===<br />
{{Specs-Fleet-Armour}}<br />
<!-- ''Talk about the vehicle's armour. Note the most well-defended and most vulnerable zones, e.g. the ammo magazine. Evaluate the composition of components and assemblies responsible for movement and manoeuvrability. Evaluate the survivability of the primary and secondary armaments separately. Don't forget to mention the size of the crew, which plays an important role in fleet mechanics. Save tips on preserving survivability for the "Usage in battles" section. If necessary, use a graphical template to show the most well-protected or most vulnerable points in the armour.'' --><br />
<br />
MGB-75 has the following armour layout:<br />
<br />
* [[2pdr QF Mk.IIc (40 mm)|2pdr QF Mk.IIc]] gunshield: 12.7 mm hardened armour<br />
* [[20 mm/70 Oerlikon Mark V (20 mm)|20 mm/70 Oerlikon Mark V]] gunshield: 12.7 mm hardened armour<br />
* Hull: 40 mm, wood<br />
* Superstructure: 15 mm, wood<br />
<br />
[[File:MGB-75_internals.png|thumb|MGB-75 internals (starboard side).]]<br />
<br />
Like most coastal vessels, MGB-75 has no practical armour. The gunshields are largely superficial; while they may stop low-calibre machine guns, heavy machine guns and cannons will easily penetrate them at any range. The hull and superstructure are unarmoured and will not stop any sort of gunfire.<br />
<br />
The hull is split into three hull sections. Starting from the bow and working towards the stern, the first section starts at the bow and ends just in front of forward gun; the second ends after the bridge, forward of the engines; and the third ends at the stern. <br />
<br />
Any round with a large enough diameter and explosive mass can hull break MGB-75. In general, this is limited to HE rounds with a diameter greater than 4 inches (102 mm) and with an explosive mass greater than 1.5 kg. At MGB-75's battle rating, the only guns that can hull break her are:<br />
<br />
* the [[10.5 cm SK C/32 (105 mm)|10.5 cm SK C/32]], found on {{Specs-Link|germ_escort_typem1943}}; and<br />
* the [[8cwt QF Mk I (114 mm)|114 mm 8cwt QF Mk I]], found on {{Specs-Link|uk_dark_class}}. <br />
<br />
There are two ammunition storages. The first ammunition storage, which holds ammunition for the primary armament, is located in the hull above the waterline, below and slightly in front of the forward gun turret. The second ammunition storage, which holds ammunition for both the secondary and AA armament, is located above deck, in front of the aft gun turret. Destroying either will instantly destroy MGB-75. Since it is located above deck, the second ammunition storage is particularly susceptible to detonation by random gunfire or artillery.<br />
<br />
MGB-75 has a crew complement of 12. With a stock crew, MGB-75 is knocked out when 8 crew are lost; with an aced crew, this is increased to 9. Overall, survivability is below-average. <br />
<br />
=== Mobility ===<br />
{{Specs-Fleet-Mobility}}<br />
<!-- ''Write about the ship's mobility. Evaluate its power and manoeuvrability, rudder rerouting speed, stopping speed at full tilt, with its maximum forward and reverse speed.'' --><br />
<br />
{{NavalMobility<br />
|SpeedForwardStockAB = 77<br />
|SpeedBackStockAB = 21<br />
|TurnTimeStockAB = 29.18<br />
|TurnSpeedStockAB = 43<br />
<br />
|TurnTimeSpadedAB = 19.63<br />
|TurnSpeedSpadedAB = 40<br />
<br />
|SpeedForwardStockRB = 67<br />
|SpeedBackStockRB = 19<br />
|TurnTimeStockRB = 32.40<br />
|TurnSpeedStockRB = 45<br />
<br />
|TurnTimeSpadedRB = 26.30<br />
|TurnSpeedSpadedRB = 43<br />
}}<br />
<br />
When moving forwards at high speeds, the bow will lift out of the water. This creates a blind spot where the 40 mm 2pdr QF Mk.IIc is unable to depress far enough to hit the waterline in an area ~400 m in front of the boat.<br />
<br />
MGB-75 has a displacement of 51.5 tons.<br />
<br />
=== Modifications and economy ===<br />
{{Specs-Economy}}<br />
<br />
== Armament ==<br />
{{Specs-Fleet-Armaments}}<br />
=== Primary armament ===<br />
{{Specs-Fleet-Primary}}<br />
<!-- ''Provide information about the characteristics of the primary armament. Evaluate their efficacy in battle based on their reload speed, ballistics and the capacity of their shells. Add a link to the main article about the weapon: <code><nowiki>{{main|Weapon name (calibre)}}</nowiki></code>. Broadly describe the ammunition available for the primary armament, and provide recommendations on how to use it and which ammunition to choose.'' --><br />
{{main|2pdr QF Mk.IIc (40 mm)}}<br />
<br />
In her primary armament group, MGB-75 has one 40 mm 2pdr QF Mk.IIc automatic cannon in a single mount, mounted centerline in front of the bridge. It has 1,400 rounds of ammunition available. The mount can traverse horizontally at a rate of 25°/s and vertically at a rate of 25°/s. The gun has a magazine capacity of 56 rounds and has a rate of fire of 200 rounds/min. With a stock crew, it can be reloaded in 7.8 seconds; with an aced crew, it can be reloaded in 6 seconds. Its maximum range against surface targets is roughly 3.1 km.<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="2" | '''Guidance for the Primary Gun Turret'''<br />
|-<br />
! Horizontal !! Vertical<br />
|-<br />
| ±180° || -5°/+70°<br />
|-<br />
|}<br />
<br />
There are three choices of ammunition available:<br />
<br />
* Universal: {{Annotation|HEF|High-explosive fragmentation}}/{{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|HEF|High-explosive fragmentation}}/{{Annotation|AP-T|Armour-piercing tracer}}<br />
<br />
* 40 mm HE: {{Annotation|HEF|High-explosive fragmentation}}/{{Annotation|HEF|High-explosive fragmentation}}/{{Annotation|HEF|High-explosive fragmentation}}/{{Annotation|AP-T|Armour-piercing tracer}}<br />
<br />
* 40 mm AP: {{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|HEF|High-explosive fragmentation}}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="7" | '''Penetration Statistics'''<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! colspan="6" | '''Penetration @ 0° Angle of Attack (mm)'''<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| Universal || 60 || 57 || 50 || 43 || 38 || 34<br />
|-<br />
| 40 mm HE || 60 || 57 || 50 || 43 || 38 || 34<br />
|-<br />
| 40 mm AP || 60 || 57 || 50 || 43 || 38 || 34<br />
|-<br />
|}<br />
<br />
=== Secondary armament ===<br />
{{Specs-Fleet-Secondary}}<br />
<!-- ''Some ships are fitted with weapons of various calibres. Secondary armaments are defined as weapons chosen with the control <code>Select secondary weapon</code>. Evaluate the secondary armaments and give advice on how to use them. Describe the ammunition available for the secondary armament. Provide recommendations on how to use them and which ammunition to choose. Remember that any anti-air armament, even heavy calibre weapons, belong in the next section. If there is no secondary armament, remove this section.'' --><br />
{{main|20 mm/70 Oerlikon Mark V (20 mm)}}<br />
<br />
In her secondary armament group, MGB-75 has two 20 mm Oerlikon Mk.II in a twin mount, mounted centerline behind the bridge. It has 4,080 rounds of ammunition available, 2,040 per gun. The mount can traverse horizontally at a rate of 75°/s and vertically at a rate of 75°/s. Each gun has a magazine capacity of 60 rounds and has a stated rate of fire of 450 rounds/min, though in actuality, the gun on the gunner's left side fires at a faster around, 485 rounds/min. With a stock crew, the guns can be reloaded in 8 seconds; with an aced crew, they can be reloaded in 4 seconds. Their maximum range against surface targets is roughly 2.1 km.<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="2" | '''Guidance for the Secondary Gun Turret'''<br />
|-<br />
! Horizontal !! Vertical<br />
|-<br />
| ±180° || -10°/+60°<br />
|-<br />
|}<br />
<br />
There are three choices of ammunition available:<br />
<br />
* Universal: {{Annotation|HEF-T|High-explosive fragmentation tracer}}/{{Annotation|HEF-I|High-explosive fragmentation incendiary}}/{{Annotation|AP-T|Armour-piercing tracer}}<br />
<br />
* 20 mm HE: {{Annotation|HEF-T|High-explosive fragmentation tracer}}/{{Annotation|HEF-I|High-explosive fragmentation incendiary}}/{{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|HEF-I|High-explosive fragmentation incendiary}}<br />
<br />
* 20 mm AP: {{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|HEF-I|High-explosive fragmentation incendiary}}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="7" | '''Penetration Statistics'''<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! colspan="6" | '''Penetration @ 0° Angle of Attack (mm)'''<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| Universal || 39 || 36 || 29 || 23 || 20 || 17<br />
|-<br />
| 20 mm HE || 39 || 36 || 29 || 23 || 20 || 17<br />
|-<br />
| 20 mm AP || 39 || 36 || 29 || 23 || 20 || 17<br />
|-<br />
|}<br />
<br />
=== Anti-aircraft armament ===<br />
{{Specs-Fleet-AA}}<br />
<!-- ''An important part of the ship's armament responsible for air defence. Anti-aircraft armament is defined by the weapon chosen with the control <code>Select anti-aircraft weapons</code>. Talk about the ship's anti-air cannons and machine guns, the number of guns and their positions, their effective range, and about their overall effectiveness – including against surface targets. If there are no anti-aircraft armaments, remove this section.'' --><br />
{{main|Lewis 1916 (7.72 mm)}}<br />
<br />
In her anti-aircraft armament group, MGB-75 has four 7.72 mm Lewis machinegun 1916s in two twin mounts, one on either side of the bridge. For each mount, there are 1,940 rounds of ammunition available, 970 rounds per gun, for a total of 3,880 rounds. There are no stated horizontal or vertical traverse rates given in-game, but the mounts handle very similarly, if not exactly, like other twin and quadruple 7.72 mm Lewis machinegun 1916 mounts which can traverse horizontally at a rate of 75°/s and vertically at a rate of 75°/s. Each gun has a magazine capacity of 97 rounds and has a rate of fire of 550 rounds/min. With a stock crew, the guns can be reloaded in 18.2 seconds; with an aced crew, they can be reloaded in 14 seconds. Their maximum range against surface targets is roughly 1.6 km.<br />
<br />
{{Notice|Turrets are named sequentially, clockwise, starting at the bow}}<br />
<br />
{| class="wikitable" style="text-align:center" width="65%"<br />
! colspan="8" | '''Guidance for the Anti-Aircraft Gun Turrets'''<br />
|-<br />
! colspan="2" rowspan="1" | No.1 Turret (starboard)<br />
! colspan="2" rowspan="1" | No.2 Turret (port)<br />
|-<br />
! Horizontal !! Vertical !! Horizontal !! Vertical<br />
|-<br />
| -45°/+170° || -5°/+60° || -170°/+45° || -5°/+60°<br />
|-<br />
|}<br />
<br />
There are no choices available. Though not directly stated in-game, there is one tracer round every other round, so the guns most likely fire the standard default ammunition choice of the 7.72 mm Lewis machinegun 1916, which has the following composition:<br />
<br />
* Default: {{Annotation|AP|Armour-piercing}}/{{Annotation|T|Tracer}}/{{Annotation|AP|Armour-piercing}}/{{Annotation|T|Tracer}}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="7" | '''Penetration Statistics'''<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! colspan="6" | '''Penetration @ 0° Angle of Attack (mm)'''<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| Default || 20 || 19 || 16 || 13 || 11 || 10<br />
|-<br />
|}<br />
<br />
=== Additional armament ===<br />
{{Specs-Fleet-Additional}}<br />
<!-- ''Describe the available additional armaments of the ship: depth charges, mines, torpedoes. Talk about their positions, available ammunition and launch features such as dead zones of torpedoes. If there is no additional armament, remove this section.'' --><br />
{{main|Mk.VII depth charge}}<br />
<br />
[[File:MGB-75_DCs.png|thumb|Mk.VII depth charges numbered 1-2 according to their drop order (click to expand).]]<br />
<br />
MGB-75 can carry two Mk.VII depth charges mounted amidships, one on each side in front of the twin 7.72 mm Lewis machinegun 1916 mounts facing outwards. The depth charges are dropped one at a time in this order (see the image):<br />
<br />
# Starboard side<br />
# Portside<br />
<br />
Before spawning, the detonation time delay can be set anywhere between 3 seconds and 10 seconds.<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="4" | '''Depth Charge Characteristics'''<br />
|-<br />
! Mass (kg)<br />
! Explosive Type<br />
! Explosive Mass (kg)<br />
! TNT Equivalent (kg)<br />
|-<br />
| 196 || TNT || 130 || 130<br />
|}<br />
<br />
== Usage in battles ==<br />
<!-- ''Describe the technique of using this ship, the characteristics of her use in a team and tips on strategy. Abstain from writing an entire guide – don't try to provide a single point of view, but give the reader food for thought. Talk about the most dangerous opponents for this vehicle and provide recommendations on fighting them. If necessary, note the specifics of playing with this vehicle in various modes (AB, RB, SB).'' --><br />
<br />
While the MGB-75's primary armament, the 40 mm 2pdr QF Mk.IIc, is a good weapon. It has a very good damage output, and, with a maximum range of roughly 3.1 km, it can outrange any opponent armed with 20 mm cannons. The gun can deal a lot of damage when the rounds hit; however, getting them to land may not always be the easiest task, mainly due to MGB-75's construction. MGB-75 has a relatively short hull, and she isn't particularly heavy for her size, so she is easily thrown around by rough waters. This, of course, makes accurately aiming the gun at long ranges practically impossible unless the sea is calm. In addition to this, MGB-75 has a planing hull, so the bow will lift out of the water when moving at high speeds. The 2pdr QF Mk.IIc can't depress far enough to compensate, so, when on the move, it won't actually be able to target most enemies in an area extending roughly 500 meters in front of the boat. Take care to either turn the hull or to slow down to engage enemies. Other shortcomings of the gun are its relatively long reload and that it's very easy to disable. For the former, if there are less than 20 or so rounds left in the magazine, it's best to fire off the remaining ammunition after each engagement to minimize the chance of needing to reload during the next engagement.<br />
<br />
If the 2pdr QF Mk.IIc is knocked out or if it is reloading, switch to the secondary twin 20 mm Oerlikon Mk.V cannons. These guns have a shorter reload than the 40 mm, and they have a much faster traverse and elevation rates, so it tends to be better for close engagements. Since the default position of the mount is to face directly aft, it's best to have it targeting the enemy currently being engaged (default: X + 2) when not in use in order to have it already facing the enemy if it's needed. Of course, this also means that it won't be able to target any other boats or aircraft while the current target is still selected, so try not to be tunnel-visioned and always keep an eye on the surroundings. Aside from that, just like the 2pdr QF Mk.IIc, always be aware of how much ammunition is left in the magazines. If there are less than 40 rounds of so rounds left between the two guns, fire off the remaining ammunition to load a full magazine.<br />
<br />
Be careful when engaging any enemy with 3-inch or larger guns. MGB-75 has large ammunition storages, and, if a 3-inch or larger HE round hits anywhere near the ammunition storages, especially the aft pair, it more often than not leads to an ammunition detonation. This is even more so with artillery fire. If the artillery warning displays, leave the area as soon as possible.<br />
<br />
The fore 40 mm 2pdr QF Mk.IIc cannon can fire in ~143° to either side, centred forwards. As mentioned before, a blind spot is created when moving at high speeds which prevents the gun from firing in an area that extends ~500 ahead and which covers ~45° to either side. The aft twin 20 mm Oerlikon Mk.V cannons can fire in all directions except for a ~45° arc, centred forwards. When moving at high speeds, this blind arc is increased to ~75°.<br />
<br />
;Ammunition Choices<br />
<br />
For the 40 mm 2pdr QF Mk.IIc cannon, the best ammunition choice is the 40 mm HE because it has the highest ratio of HE rounds to AP rounds, meaning that it will be the most effective against both aircraft and surface targets. The 40 mm HE belt should be the main ammunition choice, but a few of the 40 mm AP belt should also be taken into battle for use against armoured targets.<br />
<br />
For the 20 mm Oerlikon Mk.V cannons, the best ammunition choice is the 20 mm HE. There isn't much of a point in using the 20 mm AP belt because the primary armament is much more suited for engaging armoured targets anyway.<br />
<br />
;Depth Charges<br />
<br />
Being anti-submarine weapons and with the present lack of submarines in the game, there is practically no reason to use them. While they can be used against surface targets, this is extremely situational. Sailing up right next to a slower target and dropping a depth charge can lead to some success, though again, this is very situational. If attempting this, remember the order in which the depth charges drop and that there is no reason to use any depth charge activation time setting above the minimum 3 seconds, since higher delay times means the depth charge will sink further, and thus away, from the target. Again, it should be reiterated that this is very situational.<br />
<br />
There is no practical reason to take them into battle, especially since, if they're not dropped, they essentially become unarmoured ammo racks.<br />
<br />
=== Pros and cons ===<br />
<!-- ''Summarise and briefly evaluate the vehicle in terms of its characteristics and combat effectiveness. Mark its pros and cons in the bulleted list. Try not to use more than 6 points for each of the characteristics. Avoid using categorical definitions such as "bad", "good" and the like - use substitutions with softer forms such as "inadequate" and "effective".'' --><br />
<br />
'''Pros:'''<br />
* Powerful primary and secondary armament<br />
* Both primary and secondary armament can rotate 360°<br />
* Secondary armament: very good elevation and traverse rates; large magazine capacity; good firing arcs<br />
<br />
'''Cons:'''<br />
* Blind spot directly in front when moving at high speeds<br />
* Primary armament: long reload; easily disabled<br />
* Anti-aircraft armament: long reload; can only elevate 60°; low damage output<br />
* Unstable firing platform in rough waters<br />
* Large ammo racks<br />
<br />
== History ==<br />
<!-- ''Describe the history of the creation and combat usage of the ship in more detail than in the introduction. If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the ship and adding a block "/History" (example: <nowiki>https://wiki.warthunder.com/(Ship-name)/History</nowiki>) and add a link to it here using the <code>main</code> template. Be sure to reference text and sources by using <code><nowiki><ref></ref></nowiki></code>, as well as adding them at the end of the article with <code><nowiki><references /></nowiki></code>. This section may also include the ship's dev blog entry (if applicable) and the in-game encyclopedia description (under <code><nowiki>=== In-game description ===</nowiki></code>, also if applicable).'' --><br />
<br />
By early 1941, many of the British Power Boat Company (BPB) 60-foot, 63-foot, and 70-foot boats had been completed and were in Royal Navy Coastal Forces service, and already, their weaknesses began to show. The boats were small and lightly constructed, and the living condition for the crew was cramped. Additionally, because of their underpowered engines, they were slow. While their low top speed was certainly acceptable for the anti-submarine work, as they were initially built to perform, it was insufficient by 1941 as most of the boats had been converted into motor gun boats by this point. Thus, in 1941, BPB began designing a larger, faster boat.<br />
<br />
BPB's new design had a length of 71 feet 9 inches (21.9 m), a beam of 20 feet 7 inches (6.3 m), and a draught of about 4 feet 3 inches (1.3 m). It was powered by three Packard petrol engines driving three shafts which allowed it to achieve a top speed of 42 knots. The BPB 71'9" boats formed the bulk of Coastal Forces' MGB fleet until the introduction of the larger and more heavily-armed Fairmile D boats. In total, 96 boats were built:<br />
<br />
* MGBs 74-81: ordered in November 1940 as MA/SBs, all completed in 1942 as MGBs. Any surviving boats by September 1943 were refitted with a pair of 18-inch torpedo tubes and redesignated as MTBs 412-416. Any of the boats that survived the war were disposed of in October 1945.<br />
* MGBs 107-119: ordered in November 1940 as MA/SBs, canceled in March 1941, and reordered in February 1942, all completed in 1942 as MGBs. Any surviving boats by September 1943 were refitted with a pair of 18-inch torpedo tubes and redesignated as MTBs 417-418 and 430-438. Any of the boats that survived the war were disposed of either in March 1945 or in October 1945. Their fates are as follows:<br />
* MGBs 120-130: ordered in May 1942 as MGBs, all completed in 1943. All boats were refitted in September 1943 with a pair of 18-inch torpedo tubes and redesignated as MTBs 439-449. Most of the boats that survived the war were disposed of in October 1945.<br />
* MTBs 450-489: ordered as MGBs, all completed between 1943-1945 as MTBs. Any of the boats that survived the war were disposed of at various dates or used as controlled targets.<br />
* MTBs 490-500: ordered as MTBs, all completed between 1944-1945. Any of the boats that survived the war were disposed of at various dates or used as controlled targets, with the exception of MTB-496 and MTB-498. These were refurbished in 1949 and renumbered MTB-1596 and MTB-1598 to form the "Proud" class along with MTBs 1505-1509, MTB-1519, and MTB-1522. They were given the names "Proud Patriot" and "Proud Patroller", respectively. The "Proud" class boats were all sold in June 1958.<br />
* MTBs 501-509: ordered as MTBs, all completed in 1945. All of the bats survived the war. MTBs 501-504 were sold or disposed of at various dates. MTBs 505-509 were refurbished in 1949 and renumbered MTBs 1505-1509 to form the "Proud" class along with MTB-1596, MTB-1598, MTB-1519, and MTB-1522. They were given the names "Proud Fusilier", "Proud Grenadier", "Proud Guardsman", "Proud Highlander", and "Proud Knight", respectively. The "Proud" class boats were all sold in June 1958.<br />
* MTBs 519-522: ordered as MGBs, all completed in 1946 as MTBs. With the exception of MTB-520, they were refurbished in 1949 and renumbered MTB-1519, MTB-1521, and MTB-1522. MTB-1519 and MTB-1522 formed the "Proud" class along with MTBs 1505-1509, MTB-1596, and MTB-1598. They were given the names "Proud Lancer" and "Proud Legionary", respectively. The "Proud" class boats were all sold in June 1958.<br />
<br />
MGB-75 was part of the original order placed in November 1940. She was ordered as a motor anti-submarine boat but was completed on 8th May 1942 as a motor gun boat. MGB-75 was commanded by the following:<br />
<br />
* T/Lt. L.G.R. Campbell, RNVR: October 1942 to February 1943<br />
* T/S.Lt. F.J. Head, RNVR: April 1943 to June 1943<br />
* T/S.Lt. W.G.L. Salmon, RNVR: From June 1944 onwards<br />
<br />
MGB-75 served as part of the 6th MGB Flotilla with HMS Beehive at Felixstowe through 1943. In September 1943, MGB-75 received her refit and was redesignated as MTB-413. Through 1944, MTB-413 served as part of the 1st MTB Flotilla at Portsmouth. MTB-413 survived the war and was disposed of in October 1945.<br />
<br />
== Media ==<br />
<!-- ''Excellent additions to the article would be video guides, screenshots from the game, and photos.'' --><br />
<br />
<div class="portale" align="center"><br />
{| class="catlist" frame="box" style="background: #efefef;" align="center"<br />
|<span style="white-space:nowrap;">[[File:GEN_LIVE_WT_1_HPL.jpg|510px|link=https://live.warthunder.com/feed/camouflages/?vehicleCountry=britain&vehicleType=ship&vehicleClass=gun_boat&vehicle=uk_71ft_mgb|]]</span> ||<br />
|-<br />
|}<br />
</div><br />
<br />
== See also ==<br />
<!-- ''Links to articles on the War Thunder Wiki that you think will be useful for the reader, for example:''<br />
* ''reference to the series of the ship;''<br />
* ''links to approximate analogues of other nations and research trees.'' --><br />
<br />
* {{Specs-Link|uk_fairmile_a_ml100}}<br />
* {{Specs-Link|uk_70ft_mgb}}<br />
* {{Specs-Link|uk_dark_class}}<br />
<br />
== External links ==<br />
<!-- ''Paste links to sources and external resources, such as:''<br />
* ''topic on the official game forum;''<br />
* ''encyclopedia page on the ship;''<br />
* ''other literature.'' --><br />
<br />
* [http://cfv.org.uk/research/boat/database Coastal Forces Veterans - Boat Database]<br />
* [https://www.unithistories.com/units_british/RN_CoastalForces.html#MGB%20Boats unithistories.com - Royal Navy Coastal Forces 1940-1945]<br />
* [http://www.naval-history.net/WW2BritishLosses3Coastal.htm naval-history.net - British vessels lost at sea in World War 2 - MGB, MTB, SGB, ML, etc] - originally published in ''British Vessels Lost at Sea, 1935-45'', His Majesty's Stationary Office, 1947<br />
* [http://www.navypedia.org/ships/uk/brit_c_f_mtb412.htm NAVYPEDIA - MTB412 motor torpedo boats (93, 1942 - 1946)]<br />
* [https://uboat.net/allies/warships/class.html?ID=673&navy=HMS uboat.net - BPB 72 feet-type class]<br />
* [https://www.yalumba.co.uk/Framesets/British%20Power%20Boat%20Co%20-%20Page%204,%20MGBs.html yalumba.co.uk - British Power Boat Co Page 4]<br />
* [http://www.coastal-forces.org.uk/boats.html Coastal Forces Heritage Trust - Boats]<br />
<br />
===Bibliography===<br />
<br />
* Konstam, Angus (2010). ''British Motor Gun Boat 1939–45''. Osprey Publishing Ltd. ISBN 978-1-84908-077-4.<br />
<br />
{{Britain boats}}<br />
{{Britain premium ships}}</div>U27474208https://old-wiki.warthunder.com/index.php?title=MGB-75&diff=103974MGB-752021-05-31T06:41:08Z<p>U27474208: Expanded on Survivability and armor</p>
<hr />
<div>{{Specs-Card<br />
|code=uk_71ft_mgb<br />
|images={{Specs-Card-Image|GarageImage_{{PAGENAME}}.jpg}}<br />
}}<br />
<br />
== Description ==<br />
<!-- ''In the first part of the description, cover the history of the ship's creation and military application. In the second part, tell the reader about using this ship in the game. Add a screenshot: if a beginner player has a hard time remembering vehicles by name, a picture will help them identify the ship in question.'' --><br />
The '''{{Specs|name}}''' is a premium rank {{Specs|rank}} British motor gun boat {{Battle-rating}}. It was introduced in [[Update 1.91 "Night Vision"]]. Originally a rank I vessel, with the split of the naval tech trees in [[Update "New Power"]], {{PAGENAME}} was moved to rank II in the coastal fleet tech tree.<br />
<br />
== General info ==<br />
=== Survivability and armour ===<br />
{{Specs-Fleet-Armour}}<br />
<!-- ''Talk about the vehicle's armour. Note the most well-defended and most vulnerable zones, e.g. the ammo magazine. Evaluate the composition of components and assemblies responsible for movement and manoeuvrability. Evaluate the survivability of the primary and secondary armaments separately. Don't forget to mention the size of the crew, which plays an important role in fleet mechanics. Save tips on preserving survivability for the "Usage in battles" section. If necessary, use a graphical template to show the most well-protected or most vulnerable points in the armour.'' --><br />
<br />
MGB-75 has the following armour layout:<br />
<br />
* [[2pdr QF Mk.IIc (40 mm)|2pdr QF Mk.IIc]] gunshield: 12.7 mm hardened armour<br />
* [[[[20 mm/70 Oerlikon Mark V (20 mm)|20 mm/70 Oerlikon Mark V]]]] gunshield: 12.7 mm hardened armour<br />
* Hull: 40 mm, wood<br />
* Superstructure: 15 mm, wood<br />
<br />
[[File:MGB-75_internals.png|thumb|MGB-75 internals (starboard side).]]<br />
<br />
Like most coastal vessels, MGB-75 has no practical armour. The gunshields are largely superficial; while they may stop low-calibre machine guns, heavy machine guns and cannons will easily penetrate them at any range. The hull and superstructure are unarmoured and will not stop any sort of gunfire.<br />
<br />
The hull is split into three hull sections. Starting from the bow and working towards the stern, the first section starts at the bow and ends just in front of forward gun; the second ends after the bridge, forward of the engines; and the third ends at the stern. <br />
<br />
Any round with a large enough diameter and explosive mass can hull break MGB-75. In general, this is limited to HE rounds with a diameter greater than 4 inches (102 mm) and with an explosive mass greater than 1.5 kg. At MGB-75's battle rating, the only guns that can hull break her are:<br />
<br />
* the [[10.5 cm SK C/32 (105 mm)|10.5 cm SK C/32]], found on {{Specs-Link|germ_escort_typem1943}}; and<br />
* the [[8cwt QF Mk I (114 mm)|114 mm 8cwt QF Mk I]], found on {{Specs-Link|uk_dark_class}}. <br />
<br />
There are two ammunition storages. The first ammunition storage, which holds ammunition for the primary armament, is located in the hull above the waterline, below and slightly in front of the forward gun turret. The second ammunition storage, which holds ammunition for both the secondary and AA armament, is located above deck, in front of the aft gun turret. Destroying either will instantly destroy MGB-75. Since it is located above deck, the second ammunition storage is particularly susceptible to detonation by random gunfire or artillery.<br />
<br />
MGB-75 has a crew complement of 12. With a stock crew, MGB-75 is knocked out when 8 crew are lost; with an aced crew, this is increased to 9. Overall, survivability is below-average. <br />
<br />
=== Mobility ===<br />
{{Specs-Fleet-Mobility}}<br />
<!-- ''Write about the ship's mobility. Evaluate its power and manoeuvrability, rudder rerouting speed, stopping speed at full tilt, with its maximum forward and reverse speed.'' --><br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="6" | '''Mobility Characteristics'''<br />
|-<br />
! rowspan="2" | Game Mode<br />
! rowspan="2" | Upgrade Status<br />
! colspan="2" | Maximum Speed (km/h)<br />
! rowspan="2" | {{Annotation|Turn Time (s)|Time needed to complete a 360° turn at maximum speed}}<br />
! rowspan="2" | {{Annotation|Turn Radius (m)|At maximum speed}}<br />
|-<br />
! rowspan="1" | Forward<br />
! rowspan="1" | Reverse<br />
|-<br />
| rowspan="2" | {{Annotation|AB|Arcade Battles}}<br />
| {{Annotation|Stock|All modifications removed}} || 77 || 21 || ~29.18 || ~55.47<br />
|-<br />
| {{Annotation|Upgraded|All modifications installed}} || 105 || 29 || ~19.63 || ~34.71<br />
|-<br />
| rowspan="2" | {{Annotation|RB|Realistic Battles}}/{{Annotation|SB|Simulator Battles}}<br />
| {{Annotation|Stock|All modifications removed}} || 67 || 19 || ~32.40 || ~62.46<br />
|-<br />
| {{Annotation|Upgraded|All modifications installed}} || 78 || 22 || ~26.30 || ~50.00<br />
|-<br />
|}<br />
<br />
When moving forwards at high speeds, the bow will lift out of the water. This creates a blind spot in front of the boat where the 40 mm 2pdr QF Mk.IIc won't be able to depress far enough to engage surface targets.<br />
<br />
MGB-75 has a displacement of 51.5 tons.<br />
<br />
=== Modifications and economy ===<br />
{{Specs-Economy}}<br />
<br />
== Armament ==<br />
{{Specs-Fleet-Armaments}}<br />
=== Primary armament ===<br />
{{Specs-Fleet-Primary}}<br />
<!-- ''Provide information about the characteristics of the primary armament. Evaluate their efficacy in battle based on their reload speed, ballistics and the capacity of their shells. Add a link to the main article about the weapon: <code><nowiki>{{main|Weapon name (calibre)}}</nowiki></code>. Broadly describe the ammunition available for the primary armament, and provide recommendations on how to use it and which ammunition to choose.'' --><br />
{{main|2pdr QF Mk.IIc (40 mm)}}<br />
<br />
In her primary armament group, MGB-75 has one 40 mm 2pdr QF Mk.IIc automatic cannon in a single mount, mounted centerline in front of the bridge. It has 1,400 rounds of ammunition available. The mount can traverse horizontally at a rate of 25°/s and vertically at a rate of 25°/s. The gun has a magazine capacity of 56 rounds and has a rate of fire of 200 rounds/min. With a stock crew, it can be reloaded in 7.8 seconds; with an aced crew, it can be reloaded in 6 seconds. Its maximum range against surface targets is roughly 3.1 km.<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="2" | '''Guidance for the Primary Gun Turret'''<br />
|-<br />
! Horizontal !! Vertical<br />
|-<br />
| ±180° || -5°/+70°<br />
|-<br />
|}<br />
<br />
There are three choices of ammunition available:<br />
<br />
* Universal: {{Annotation|HEF|High-explosive fragmentation}}/{{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|HEF|High-explosive fragmentation}}/{{Annotation|AP-T|Armour-piercing tracer}}<br />
<br />
* 40 mm HE: {{Annotation|HEF|High-explosive fragmentation}}/{{Annotation|HEF|High-explosive fragmentation}}/{{Annotation|HEF|High-explosive fragmentation}}/{{Annotation|AP-T|Armour-piercing tracer}}<br />
<br />
* 40 mm AP: {{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|HEF|High-explosive fragmentation}}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="7" | '''Penetration Statistics'''<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! colspan="6" | '''Penetration @ 0° Angle of Attack (mm)'''<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| Universal || 60 || 57 || 50 || 43 || 38 || 34<br />
|-<br />
| 40 mm HE || 60 || 57 || 50 || 43 || 38 || 34<br />
|-<br />
| 40 mm AP || 60 || 57 || 50 || 43 || 38 || 34<br />
|-<br />
|}<br />
<br />
=== Secondary armament ===<br />
{{Specs-Fleet-Secondary}}<br />
<!-- ''Some ships are fitted with weapons of various calibres. Secondary armaments are defined as weapons chosen with the control <code>Select secondary weapon</code>. Evaluate the secondary armaments and give advice on how to use them. Describe the ammunition available for the secondary armament. Provide recommendations on how to use them and which ammunition to choose. Remember that any anti-air armament, even heavy calibre weapons, belong in the next section. If there is no secondary armament, remove this section.'' --><br />
{{main|20 mm/70 Oerlikon Mark V (20 mm)}}<br />
<br />
In her secondary armament group, MGB-75 has two 20 mm Oerlikon Mk.II in a twin mount, mounted centerline behind the bridge. It has 4,080 rounds of ammunition available, 2,040 per gun. The mount can traverse horizontally at a rate of 75°/s and vertically at a rate of 75°/s. Each gun has a magazine capacity of 60 rounds and has a stated rate of fire of 450 rounds/min, though in actuality, the gun on the gunner's left side fires at a faster around, 485 rounds/min. With a stock crew, the guns can be reloaded in 8 seconds; with an aced crew, they can be reloaded in 4 seconds. Their maximum range against surface targets is roughly 2.1 km.<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="2" | '''Guidance for the Secondary Gun Turret'''<br />
|-<br />
! Horizontal !! Vertical<br />
|-<br />
| ±180° || -10°/+60°<br />
|-<br />
|}<br />
<br />
There are three choices of ammunition available:<br />
<br />
* Universal: {{Annotation|HEF-T|High-explosive fragmentation tracer}}/{{Annotation|HEF-I|High-explosive fragmentation incendiary}}/{{Annotation|AP-T|Armour-piercing tracer}}<br />
<br />
* 20 mm HE: {{Annotation|HEF-T|High-explosive fragmentation tracer}}/{{Annotation|HEF-I|High-explosive fragmentation incendiary}}/{{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|HEF-I|High-explosive fragmentation incendiary}}<br />
<br />
* 20 mm AP: {{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|AP-T|Armour-piercing tracer}}/{{Annotation|HEF-I|High-explosive fragmentation incendiary}}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="7" | '''Penetration Statistics'''<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! colspan="6" | '''Penetration @ 0° Angle of Attack (mm)'''<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| Universal || 39 || 36 || 29 || 23 || 20 || 17<br />
|-<br />
| 20 mm HE || 39 || 36 || 29 || 23 || 20 || 17<br />
|-<br />
| 20 mm AP || 39 || 36 || 29 || 23 || 20 || 17<br />
|-<br />
|}<br />
<br />
=== Anti-aircraft armament ===<br />
{{Specs-Fleet-AA}}<br />
<!-- ''An important part of the ship's armament responsible for air defence. Anti-aircraft armament is defined by the weapon chosen with the control <code>Select anti-aircraft weapons</code>. Talk about the ship's anti-air cannons and machine guns, the number of guns and their positions, their effective range, and about their overall effectiveness – including against surface targets. If there are no anti-aircraft armaments, remove this section.'' --><br />
{{main|Lewis 1916 (7.72 mm)}}<br />
<br />
In her anti-aircraft armament group, MGB-75 has four 7.72 mm Lewis machinegun 1916s in two twin mounts, one on either side of the bridge. For each mount, there are 1,940 rounds of ammunition available, 970 rounds per gun, for a total of 3,880 rounds. There are no stated horizontal or vertical traverse rates given in-game, but the mounts handle very similarly, if not exactly, like other twin and quadruple 7.72 mm Lewis machinegun 1916 mounts which can traverse horizontally at a rate of 75°/s and vertically at a rate of 75°/s. Each gun has a magazine capacity of 97 rounds and has a rate of fire of 550 rounds/min. With a stock crew, the guns can be reloaded in 18.2 seconds; with an aced crew, they can be reloaded in 14 seconds. Their maximum range against surface targets is roughly 1.6 km.<br />
<br />
{{Notice|Turrets are named sequentially, clockwise, starting at the bow}}<br />
<br />
{| class="wikitable" style="text-align:center" width="65%"<br />
! colspan="8" | '''Guidance for the Anti-Aircraft Gun Turrets'''<br />
|-<br />
! colspan="2" rowspan="1" | No.1 Turret (starboard)<br />
! colspan="2" rowspan="1" | No.2 Turret (port)<br />
|-<br />
! Horizontal !! Vertical !! Horizontal !! Vertical<br />
|-<br />
| -45°/+170° || -5°/+60° || -170°/+45° || -5°/+60°<br />
|-<br />
|}<br />
<br />
There are no choices available. Though not directly stated in-game, there is one tracer round every other round, so the guns most likely fire the standard default ammunition choice of the 7.72 mm Lewis machinegun 1916, which has the following composition:<br />
<br />
* Default: {{Annotation|AP|Armour-piercing}}/{{Annotation|T|Tracer}}/{{Annotation|AP|Armour-piercing}}/{{Annotation|T|Tracer}}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="7" | '''Penetration Statistics'''<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! colspan="6" | '''Penetration @ 0° Angle of Attack (mm)'''<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| Default || 20 || 19 || 16 || 13 || 11 || 10<br />
|-<br />
|}<br />
<br />
=== Additional armament ===<br />
{{Specs-Fleet-Additional}}<br />
<!-- ''Describe the available additional armaments of the ship: depth charges, mines, torpedoes. Talk about their positions, available ammunition and launch features such as dead zones of torpedoes. If there is no additional armament, remove this section.'' --><br />
{{main|Mk.VII depth charge}}<br />
<br />
[[File:MGB-75_DCs.png|thumb|Mk.VII depth charges numbered 1-2 according to their drop order (click to expand).]]<br />
<br />
MGB-75 can carry two Mk.VII depth charges mounted amidships, one on each side in front of the twin 7.72 mm Lewis machinegun 1916 mounts facing outwards. The depth charges are dropped one at a time in this order (see the image):<br />
<br />
# Starboard side<br />
# Portside<br />
<br />
Before spawning, the detonation time delay can be set anywhere between 3 seconds and 10 seconds.<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="4" | '''Depth Charge Characteristics'''<br />
|-<br />
! Mass (kg)<br />
! Explosive Type<br />
! Explosive Mass (kg)<br />
! TNT Equivalent (kg)<br />
|-<br />
| 196 || TNT || 130 || 130<br />
|}<br />
<br />
== Usage in battles ==<br />
<!-- ''Describe the technique of using this ship, the characteristics of her use in a team and tips on strategy. Abstain from writing an entire guide – don't try to provide a single point of view, but give the reader food for thought. Talk about the most dangerous opponents for this vehicle and provide recommendations on fighting them. If necessary, note the specifics of playing with this vehicle in various modes (AB, RB, SB).'' --><br />
<br />
While the MGB-75's primary armament, the 40 mm 2pdr QF Mk.IIc, is a good weapon. It has a very good damage output, and, with a maximum range of roughly 3.1 km, it can outrange any opponent armed with 20 mm cannons. The gun can deal a lot of damage when the rounds hit; however, getting them to land may not always be the easiest task, mainly due to MGB-75's construction. MGB-75 has a relatively short hull, and she isn't particularly heavy for her size, so she is easily thrown around by rough waters. This, of course, makes accurately aiming the gun at long ranges practically impossible unless the sea is calm. In addition to this, MGB-75 has a planing hull, so the bow will lift out of the water when moving at high speeds. The 2pdr QF Mk.IIc can't depress far enough to compensate, so, when on the move, it won't actually be able to target most enemies in an area extending roughly 500 meters in front of the boat. Take care to either turn the hull or to slow down to engage enemies. Other shortcomings of the gun are its relatively long reload and that it's very easy to disable. For the former, if there are less than 20 or so rounds left in the magazine, it's best to fire off the remaining ammunition after each engagement to minimize the chance of needing to reload during the next engagement.<br />
<br />
If the 2pdr QF Mk.IIc is knocked out or if it is reloading, switch to the secondary twin 20 mm Oerlikon Mk.V cannons. These guns have a shorter reload than the 40 mm, and they have a much faster traverse and elevation rates, so it tends to be better for close engagements. Since the default position of the mount is to face directly aft, it's best to have it targeting the enemy currently being engaged (default: X + 2) when not in use in order to have it already facing the enemy if it's needed. Of course, this also means that it won't be able to target any other boats or aircraft while the current target is still selected, so try not to be tunnel-visioned and always keep an eye on the surroundings. Aside from that, just like the 2pdr QF Mk.IIc, always be aware of how much ammunition is left in the magazines. If there are less than 40 rounds of so rounds left between the two guns, fire off the remaining ammunition to load a full magazine.<br />
<br />
Be careful when engaging any enemy with 3-inch or larger guns. MGB-75 has large ammunition storages, and, if a 3-inch or larger HE round hits anywhere near the ammunition storages, especially the aft pair, it more often than not leads to an ammunition detonation. This is even more so with artillery fire. If the artillery warning displays, leave the area as soon as possible.<br />
<br />
The fore 40 mm 2pdr QF Mk.IIc cannon can fire in ~143° to either side, centred forwards. As mentioned before, a blind spot is created when moving at high speeds which prevents the gun from firing in an area that extends ~500 ahead and which covers ~45° to either side. The aft twin 20 mm Oerlikon Mk.V cannons can fire in all directions except for a ~45° arc, centred forwards. When moving at high speeds, this blind arc is increased to ~75°.<br />
<br />
;Ammunition Choices<br />
<br />
For the 40 mm 2pdr QF Mk.IIc cannon, the best ammunition choice is the 40 mm HE because it has the highest ratio of HE rounds to AP rounds, meaning that it will be the most effective against both aircraft and surface targets. The 40 mm HE belt should be the main ammunition choice, but a few of the 40 mm AP belt should also be taken into battle for use against armoured targets.<br />
<br />
For the 20 mm Oerlikon Mk.V cannons, the best ammunition choice is the 20 mm HE. There isn't much of a point in using the 20 mm AP belt because the primary armament is much more suited for engaging armoured targets anyway.<br />
<br />
;Depth Charges<br />
<br />
Being anti-submarine weapons and with the present lack of submarines in the game, there is practically no reason to use them. While they can be used against surface targets, this is extremely situational. Sailing up right next to a slower target and dropping a depth charge can lead to some success, though again, this is very situational. If attempting this, remember the order in which the depth charges drop and that there is no reason to use any depth charge activation time setting above the minimum 3 seconds, since higher delay times means the depth charge will sink further, and thus away, from the target. Again, it should be reiterated that this is very situational.<br />
<br />
There is no practical reason to take them into battle, especially since, if they're not dropped, they essentially become unarmoured ammo racks.<br />
<br />
=== Pros and cons ===<br />
<!-- ''Summarise and briefly evaluate the vehicle in terms of its characteristics and combat effectiveness. Mark its pros and cons in the bulleted list. Try not to use more than 6 points for each of the characteristics. Avoid using categorical definitions such as "bad", "good" and the like - use substitutions with softer forms such as "inadequate" and "effective".'' --><br />
<br />
'''Pros:'''<br />
* Powerful primary and secondary armament<br />
* Both primary and secondary armament can rotate 360°<br />
* Secondary armament: very good elevation and traverse rates; large magazine capacity; good firing arcs<br />
<br />
'''Cons:'''<br />
* Blind spot directly in front when moving at high speeds<br />
* Primary armament: long reload; easily disabled<br />
* Anti-aircraft armament: long reload; can only elevate 60°; low damage output<br />
* Unstable firing platform in rough waters<br />
* Large ammo racks<br />
<br />
== History ==<br />
<!-- ''Describe the history of the creation and combat usage of the ship in more detail than in the introduction. If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the ship and adding a block "/History" (example: <nowiki>https://wiki.warthunder.com/(Ship-name)/History</nowiki>) and add a link to it here using the <code>main</code> template. Be sure to reference text and sources by using <code><nowiki><ref></ref></nowiki></code>, as well as adding them at the end of the article with <code><nowiki><references /></nowiki></code>. This section may also include the ship's dev blog entry (if applicable) and the in-game encyclopedia description (under <code><nowiki>=== In-game description ===</nowiki></code>, also if applicable).'' --><br />
<br />
By early 1941, many of the British Power Boat Company (BPB) 60-foot, 63-foot, and 70-foot boats had been completed and were in Royal Navy Coastal Forces service, and already, their weaknesses began to show. The boats were small and lightly constructed, and the living condition for the crew was cramped. Additionally, because of their underpowered engines, they were slow. While their low top speed was certainly acceptable for the anti-submarine work, as they were initially built to perform, it was insufficient by 1941 as most of the boats had been converted into motor gun boats by this point. Thus, in 1941, BPB began designing a larger, faster boat.<br />
<br />
BPB's new design had a length of 71 feet 9 inches (21.9 m), a beam of 20 feet 7 inches (6.3 m), and a draught of about 4 feet 3 inches (1.3 m). It was powered by three Packard petrol engines driving three shafts which allowed it to achieve a top speed of 42 knots. The BPB 71'9" boats formed the bulk of Coastal Forces' MGB fleet until the introduction of the larger and more heavily-armed Fairmile D boats. In total, 96 boats were built:<br />
<br />
* MGBs 74-81: ordered in November 1940 as MA/SBs, all completed in 1942 as MGBs. Any surviving boats by September 1943 were refitted with a pair of 18-inch torpedo tubes and redesignated as MTBs 412-416. Any of the boats that survived the war were disposed of in October 1945.<br />
* MGBs 107-119: ordered in November 1940 as MA/SBs, canceled in March 1941, and reordered in February 1942, all completed in 1942 as MGBs. Any surviving boats by September 1943 were refitted with a pair of 18-inch torpedo tubes and redesignated as MTBs 417-418 and 430-438. Any of the boats that survived the war were disposed of either in March 1945 or in October 1945. Their fates are as follows:<br />
* MGBs 120-130: ordered in May 1942 as MGBs, all completed in 1943. All boats were refitted in September 1943 with a pair of 18-inch torpedo tubes and redesignated as MTBs 439-449. Most of the boats that survived the war were disposed of in October 1945.<br />
* MTBs 450-489: ordered as MGBs, all completed between 1943-1945 as MTBs. Any of the boats that survived the war were disposed of at various dates or used as controlled targets.<br />
* MTBs 490-500: ordered as MTBs, all completed between 1944-1945. Any of the boats that survived the war were disposed of at various dates or used as controlled targets, with the exception of MTB-496 and MTB-498. These were refurbished in 1949 and renumbered MTB-1596 and MTB-1598 to form the "Proud" class along with MTBs 1505-1509, MTB-1519, and MTB-1522. They were given the names "Proud Patriot" and "Proud Patroller", respectively. The "Proud" class boats were all sold in June 1958.<br />
* MTBs 501-509: ordered as MTBs, all completed in 1945. All of the bats survived the war. MTBs 501-504 were sold or disposed of at various dates. MTBs 505-509 were refurbished in 1949 and renumbered MTBs 1505-1509 to form the "Proud" class along with MTB-1596, MTB-1598, MTB-1519, and MTB-1522. They were given the names "Proud Fusilier", "Proud Grenadier", "Proud Guardsman", "Proud Highlander", and "Proud Knight", respectively. The "Proud" class boats were all sold in June 1958.<br />
* MTBs 519-522: ordered as MGBs, all completed in 1946 as MTBs. With the exception of MTB-520, they were refurbished in 1949 and renumbered MTB-1519, MTB-1521, and MTB-1522. MTB-1519 and MTB-1522 formed the "Proud" class along with MTBs 1505-1509, MTB-1596, and MTB-1598. They were given the names "Proud Lancer" and "Proud Legionary", respectively. The "Proud" class boats were all sold in June 1958.<br />
<br />
MGB-75 was part of the original order placed in November 1940. She was ordered as a motor anti-submarine boat but was completed on 8th May 1942 as a motor gun boat. MGB-75 was commanded by the following:<br />
<br />
* T/Lt. L.G.R. Campbell, RNVR: October 1942 to February 1943<br />
* T/S.Lt. F.J. Head, RNVR: April 1943 to June 1943<br />
* T/S.Lt. W.G.L. Salmon, RNVR: From June 1944 onwards<br />
<br />
MGB-75 served as part of the 6th MGB Flotilla with HMS Beehive at Felixstowe through 1943. In September 1943, MGB-75 received her refit and was redesignated as MTB-413. Through 1944, MTB-413 served as part of the 1st MTB Flotilla at Portsmouth. MTB-413 survived the war and was disposed of in October 1945.<br />
<br />
== Media ==<br />
<!-- ''Excellent additions to the article would be video guides, screenshots from the game, and photos.'' --><br />
<br />
<div class="portale" align="center"><br />
{| class="catlist" frame="box" style="background: #efefef;" align="center"<br />
|<span style="white-space:nowrap;">[[File:GEN_LIVE_WT_1_HPL.jpg|510px|link=https://live.warthunder.com/feed/camouflages/?vehicleCountry=britain&vehicleType=ship&vehicleClass=gun_boat&vehicle=uk_71ft_mgb|]]</span> ||<br />
|-<br />
|}<br />
</div><br />
<br />
== See also ==<br />
<!-- ''Links to articles on the War Thunder Wiki that you think will be useful for the reader, for example:''<br />
* ''reference to the series of the ship;''<br />
* ''links to approximate analogues of other nations and research trees.'' --><br />
<br />
* {{Specs-Link|uk_fairmile_a_ml100}}<br />
* {{Specs-Link|uk_70ft_mgb}}<br />
* {{Specs-Link|uk_dark_class}}<br />
<br />
== External links ==<br />
<!-- ''Paste links to sources and external resources, such as:''<br />
* ''topic on the official game forum;''<br />
* ''encyclopedia page on the ship;''<br />
* ''other literature.'' --><br />
<br />
* [http://cfv.org.uk/research/boat/database Coastal Forces Veterans - Boat Database]<br />
* [https://www.unithistories.com/units_british/RN_CoastalForces.html#MGB%20Boats unithistories.com - Royal Navy Coastal Forces 1940-1945]<br />
* [http://www.naval-history.net/WW2BritishLosses3Coastal.htm naval-history.net - British vessels lost at sea in World War 2 - MGB, MTB, SGB, ML, etc] - originally published in ''British Vessels Lost at Sea, 1935-45'', His Majesty's Stationary Office, 1947<br />
* [http://www.navypedia.org/ships/uk/brit_c_f_mtb412.htm NAVYPEDIA - MTB412 motor torpedo boats (93, 1942 - 1946)]<br />
* [https://uboat.net/allies/warships/class.html?ID=673&navy=HMS uboat.net - BPB 72 feet-type class]<br />
* [https://www.yalumba.co.uk/Framesets/British%20Power%20Boat%20Co%20-%20Page%204,%20MGBs.html yalumba.co.uk - British Power Boat Co Page 4]<br />
* [http://www.coastal-forces.org.uk/boats.html Coastal Forces Heritage Trust - Boats]<br />
<br />
===Bibliography===<br />
<br />
* Konstam, Angus (2010). ''British Motor Gun Boat 1939–45''. Osprey Publishing Ltd. ISBN 978-1-84908-077-4.<br />
<br />
{{Britain boats}}<br />
{{Britain premium ships}}</div>U27474208https://old-wiki.warthunder.com/index.php?title=Dark_Aggressor&diff=102646Dark Aggressor2021-05-12T10:05:23Z<p>U27474208: /* Survivability and armour */ Readded hull break</p>
<hr />
<div>{{Specs-Card<br />
|code=uk_dark_class_mtb<br />
|images={{Specs-Card-Image|GarageImage_{{PAGENAME}}.jpg}}<br />
}}<br />
<br />
== Description ==<br />
<!-- ''In the first part of the description, cover the history of the ship's creation and military application. In the second part, tell the reader about using this ship in the game. Add a screenshot: if a beginner player has a hard time remembering vehicles by name, a picture will help them identify the ship in question.'' --><br />
The '''{{Specs|name}}''' is a rank {{Specs|rank}} British motor gun boat {{Battle-rating}}. It was introduced in [[Update 1.83 "Masters of the Sea"]] as part of the British fleet closed beta test. With the split of the naval tech trees in [[Update "New Power"]], {{PAGENAME}} was moved to the coastal fleet tech tree.<br />
<br />
== General info ==<br />
=== Survivability and armour ===<br />
{{Specs-Fleet-Armour}}<br />
<!-- ''Talk about the vehicle's armour. Note the most well-defended and most vulnerable zones, e.g. the ammo magazine. Evaluate the composition of components and assemblies responsible for movement and manoeuvrability. Evaluate the survivability of the primary and secondary armaments separately. Don't forget to mention the size of the crew, which plays an important role in fleet mechanics. Save tips on preserving survivability for the "Usage in battles" section. If necessary, use a graphical template to show the most well-protected or most vulnerable points in the armour.'' --><br />
<br />
Dark class (FPB 1102) has the following armour layout:<br />
<br />
* Hull: 40 mm, wood<br />
* Superstructure: 15 mm, wood<br />
<br />
[[File:{{PAGENAME}}_internals.png|thumb|Dark class (FPB 1102) internals (starboard side).]]<br />
<br />
Like most coastal vessels, Dark class (FPB 1102) has no practical armour. The hull and superstructure are unarmoured and will not stop any sort of gunfire. <br />
<br />
The hull is split into four hull sections. Starting from the bow and working towards the stern, the first section starts at the bow and ends just in front of the gun; the second ends after the bridge; the third ends where the fuel tanks end, just in front of the engines; and the fourth ends at the stern. Any round with a large enough diameter and explosive mass can hull break Dark class (FPB 1101). In general, this is limited to HE rounds greater with a diameter greater than or equal to 4 inches (102 mm) and with an explosive mass greater than 1.5 kg. At Dark class (FPB 1101)'s battle rating, the only guns that can hull break her are:<br />
<br />
* the [[10.5 cm SK C/32 (105 mm)|10.5 cm SK C/32]], found on {{Specs-Link|germ_escort_typem1943}} and {{Specs-Link|germ_artilleriefahrprahm_typ_d3}}; and<br />
* the [[8cwt QF Mk I (114 mm)|114 mm 8cwt QF Mk I]], found on {{Specs-Link|uk_dark_class}}.<br />
<br />
There is one ammunition storage located directly underneath the gun turret just above the waterline. Destroying it will instantly destroy the boat. <br />
<br />
Dark class (FPB 1102) has a crew complement of 15. With a stock crew, Dark class (FPB 1101) is knocked out when 10 crew are lost; with an aced crew, this is increased to 11. Overall, the survivability is average.<br />
<br />
=== Mobility ===<br />
{{Specs-Fleet-Mobility}}<br />
<!-- ''Write about the ship's mobility. Evaluate its power and manoeuvrability, rudder rerouting speed, stopping speed at full tilt, with its maximum forward and reverse speed.'' --><br />
<br />
{{NavalMobility<br />
|SpeedForwardStockAB = 73<br />
|SpeedBackStockAB = 27<br />
|TurnTimeStockAB = 26.18<br />
|TurnSpeedStockAB = 43.98<br />
<br />
|TurnTimeSpadedAB = 17.38<br />
|TurnSpeedSpadedAB = 27.66<br />
<br />
|SpeedForwardStockRB = 64<br />
|SpeedBackStockRB = 24<br />
|TurnTimeStockRB = 29.02<br />
|TurnSpeedStockRB = 50.04<br />
<br />
|TurnTimeSpadedRB = 23.83<br />
|TurnSpeedSpadedRB = 40.03<br />
}}<br />
<br />
Dark class (FPB 1102) has a displacement of 64 tons. <br />
<br />
=== Modifications and economy ===<br />
{{Specs-Economy}}<br />
<br />
The recommended modification research order is:<br />
<br />
* Tool Set<br />
* Fire Protection System<br />
* 40 mm HE clips<br />
* 40 mm AP clips<br />
* Propeller Replacement<br />
* Primary Aramment Targeting<br />
* Artillery Support<br />
<br />
After that, prioritize the rest of the seakeeping modifications first, then finish researching the remaining modifications in whatever order you prefer.<br />
<br />
== Armament ==<br />
{{Specs-Fleet-Armaments}}<br />
=== Primary armament ===<br />
{{Specs-Fleet-Primary}}<br />
<!-- ''Provide information about the characteristics of the primary armament. Evaluate their efficacy in battle based on their reload speed, ballistics and the capacity of their shells. Add a link to the main article about the weapon: <code><nowiki>{{main|Weapon name (calibre)}}</nowiki></code>. Broadly describe the ammunition available for the primary armament, and provide recommendations on how to use it and which ammunition to choose.'' --><br />
{{main|QF Mark VII (40 mm)}}<br />
<br />
The primary armament consists of a single 40 mm QF Mk VII cannon mounted forward with a maximum ammunition load of 1500 rounds. Stock, the mount can traverse horizontally at a rate of 34°/s and vertically at a rate of 29°/s; with the "Primary Armament Targeting" modification installed, this is increased to 40°/s and 34°/s respectively. The gun has a magazine capacity of 4 rounds and a cycle rate of fire of 160 rounds/min. With a stock crew, it can be reloaded in 0.49 seconds; with an aced crew, this is decreased to 0.38 seconds. The reload is short enough that there is a seamless transition between magazines, although continuously firing for too long will cause the gun to overheat and jam. This happens after continuously firing for about 1.25 min, or about 200 rounds. There is no noticeable drop in accuracy as the gun overheats.<br />
<br />
{| class="wikitable" style="text-align:center" width="25%"<br />
! colspan="2" | Primary armament guidance<br />
|-<br />
! Horizontal !! Vertical<br />
|-<br />
| ±180° || -10°/+89°<br />
|-<br />
|}<br />
<br />
There are three ammunition types available:<br />
<br />
* Universal: {{Annotation|AP-T|Armour-piercing tracer}}{{-}}{{Annotation|HEFI-T|High-explosive fragmentary incendiary tracer}}<br />
* 40 mm HE clips: {{Annotation|HEFI-T|High-explosive fragmentary incendiary tracer}}{{-}}{{Annotation|HEFI-T|High-explosive fragmentary incendiary tracer}}{{-}}{{Annotation|HEFI-T|High-explosive fragmentary incendiary tracer}}{{-}}{{Annotation|AP-T|Armour-piercing tracer}}<br />
* 40 mm AP clips: {{Annotation|AP-T|Armour-piercing tracer}}{{-}}{{Annotation|AP-T|Armour-piercing tracer}}{{-}}{{Annotation|AP-T|Armour-piercing tracer}}{{-}}{{Annotation|HEFI-T|High-explosive fragmentary incendiary tracer}}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="7" | Penetration statistics<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| Universal || 80 || 77 || 66 || 57 || 50 || 45<br />
|-<br />
| 40 mm HE clips || 80 || 77 || 66 || 57 || 50 || 45<br />
|-<br />
| 40 mm AP clips || 80 || 77 || 66 || 57 || 50 || 45<br />
|-<br />
|}<br />
<br />
The best ammunition is the 40 mm HE clips because it has the highest ratio of HE rounds to AP rounds. Take mostly 40 mm HE clips along with several 40 mm AP clips for armoured targets. Because of the gun's seamless reload, there is no reason to use the Universal belt once the others are unlocked. <br />
<br />
=== Additional armament ===<br />
{{Specs-Fleet-Additional}}<br />
<!-- ''Describe the available additional armaments of the ship: depth charges, mines, torpedoes. Talk about their positions, available ammunition and launch features such as dead zones of torpedoes. If there is no additional armament, remove this section.'' --><br />
{{main|Mk.VIII (533 mm)|Mk.VII depth charge}}<br />
<br />
Dark class (FPB 1102) has two possible loadouts:<br />
<br />
# 4x Mk.VIII torpedo<br />
# 2x Mk.VII depth charge<br />
# 4x Mk.VIII torpedo; 2x Mk.VII depth charge<br />
# Without load<br />
<br />
'''Torpedoes'''<br />
<br />
Dark class (FPB 1102) can carry four 533 mm Mk.VIII torpedoes. The torpedo tubes are located on either side of the bridge, pointing forwards with the nose angled outwards. <br />
<br />
{| class="wikitable" style="text-align:center" width="100%"<br />
! colspan="9" | Torpedo characteristics<br />
|-<br />
! Torpedo Mode !! Mass (kg) !! Maximum speed in water (km/h) !! Travel distance (km) !! Depth stroke (m) !! Arming distance (m) !! Explosive type !! Explosive mass (kg) !! TNT equivalent (kg)<br />
|-<br />
| {{Annotation|No|'Torpedo Mode' modification uninstalled}} || 1,566 || 84 || 4.57 || 1 || 50 || TNT || 327 || 327<br />
|-<br />
| {{Annotation|Yes|'Torpedo Mode' modification installed}} || 1,566 || 76 || 6.40 || 1 || 50 || TNT || 327 || 327<br />
|}<br />
<br />
The Torpedo Mode modification is available as a rank IV modification. Installing it will give the following changes:<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="2" | Torpedo mode specification changes<br />
|-<br />
! Max Distance (m)<br />
! Max Speed (m/s)<br />
|-<br />
| +1,830 || -2<br />
|-<br />
|}<br />
<br />
It's best to always keep Torpedo Mode uninstalled. The maximum speed of a torpedo is much more valuable in coastal battles than its maximum range. Coastal fleet maps are also small enough that the decreased range with Torpedo Mode installed isn't much of an issue.<br />
<br />
In RB, always set the depth stroke to the minimum 1 m setting. This is because many vessels that Dark class (FPB 1102) can face will not have a deep enough draught to fuse the torpedo at a depth stroke setting of 4 m. In AB, depth stroke is automatically set to the most optimal setting.<br />
<br />
When using torpedoes, be aware that unless they are already launched, the torpedoes have a very high chance to detonate when shot at, instantly destroying the boat. To avoid this, fire the torpedoes immediately after spawning in—as well as after any subsequent reloads in AB—or simply don't take them at all. Torpedoes are a situational weapon, so it's largely down to personal preference whether or not to take them.<br />
<br />
'''Depth charges'''<br />
<br />
[[File:{{PAGENAME}}_DC_Order.png|thumb|Mk.VII depth charges numbered according to their drop order (click to view a larger image).]]<br />
<br />
The Mk.VII depth charges are carried on the stern, one on each side. They are dropped one at a time in the following order:<br />
<br />
# Starboard<br />
# Port<br />
<br />
Before spawning, the detonation time delay can be set anywhere between 3 seconds and 10 seconds.<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="7" | Depth charge characteristics<br />
|-<br />
! Mass (kg)<br />
! Explosive type<br />
! Explosive mass (kg)<br />
! TNT equivalent (kg)<br />
! HE armour penetration (mm)<br />
! Armoured vehicle destruction radius (m)<br />
! Fragment dispersion radius (m)<br />
|-<br />
| 196 || TNT || 130 || 130 || 101 || 8 || 122 <br />
|}<br />
<br />
There is almost no practical reason to use depth charges on any naval vessel in the game. Although they usually result in a one-hit kill if used properly, they are extremely situational, requiring the player to close to point-blank ranges to even use them. In almost every case, anytime a depth charge could be used, the guns or torpedoes can be used instead to greater effect. In fact, depth charges tend to actually be a liability in battle, since they essentially act as exposed ammo racks before they're dropped. Like torpedoes, they can be shot at, and if destroyed, they have a chance to detonate, instantly destroying the boat.<br />
<br />
Despite this, some success can be had in dropping them either next to, or in front of a large, slow target. If dropping them next to the target, remember the depth charge drop order, since it's most likely that only the depth charges dropped on the side closest to the enemy will deal any damage. If dropping in front of the target, rush in from the sides as quickly as possible and drop them all at once directly in front of the target. For both cases, set the depth charge time delay to the minimum 3 seconds, since any higher time delay will only allow the depth charge to sink further away from the target, giving them more time to move out of the way. Again, using depth charges is extremely situational, and they will only be a liability the vast majority of the time, so take them at your own discretion.<br />
<br />
== Usage in battles ==<br />
<!-- ''Describe the technique of using this ship, the characteristics of her use in a team and tips on strategy. Abstain from writing an entire guide – don't try to provide a single point of view, but give the reader food for thought. Talk about the most dangerous opponents for this vehicle and provide recommendations on fighting them. If necessary, note the specifics of playing with this vehicle in various modes (AB, RB, SB).'' --><br />
<br />
=== Pros and cons ===<br />
<!-- ''Summarise and briefly evaluate the vehicle in terms of its characteristics and combat effectiveness. Mark its pros and cons in the bulleted list. Try not to use more than 6 points for each of the characteristics. Avoid using categorical definitions such as "bad", "good" and the like - use substitutions with softer forms such as "inadequate" and "effective".'' --><br />
<br />
'''Pros:'''<br />
<br />
* Primary armament: very good damage output, high armour penetration, seamless reload<br />
<br />
'''Cons:'''<br />
<br />
* Main armament is easily knocked out<br />
* No secondary or anti-aircraft armament<br />
<br />
== History ==<br />
<!-- ''Describe the history of the creation and combat usage of the ship in more detail than in the introduction. If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the ship and adding a block "/History" (example: <nowiki>https://wiki.warthunder.com/(Ship-name)/History</nowiki>) and add a link to it here using the <code>main</code> template. Be sure to reference text and sources by using <code><nowiki><ref></ref></nowiki></code>, as well as adding them at the end of the article with <code><nowiki><references /></nowiki></code>. This section may also include the ship's dev blog entry (if applicable) and the in-game encyclopedia description (under <code><nowiki>=== In-game description ===</nowiki></code>, also if applicable).'' --><br />
<br />
The Dark class fast patrol boats, also known as the Admiralty Type "A" Fast Patrol Boat (FPB), were 18 patrol boats used by the Royal Navy, with another 8 built for export. The class was originally ordered in the late 1940s, calling for a new diesel-powered FPB, with Saunders-Roe eventually winning the design contract in early 1952. The Dark class was built between 1954 and 1958 primarily by Saunders-Roe alongside several other British shipbuilding companies. The Dark class had interchangeable armaments and could be configured as motor torpedo boats, as motor gun boats, or as minelayers. These armaments include:<br />
<br />
* 4x 21-inch torpedoes<br />
* 1x 40 mm Bofors gun (forward), 2x 21-inch torpedoes<br />
* 1x 40 mm Bofors gun (aft), 1x 4.5-inch cannon (forward)<br />
* 16x mines<br />
<br />
The Dark class boats had a length of 71 ft. 8 in., a beam of 19 ft. 5 in., a draught of 6 ft. 1 in, and a standard displacement of 50 long tons and were the first of their kind in Royal Navy service to use diesel engines. Each boat was powered by two 18 cylinder Napier Deltic diesel engines, each producing 2,500 bhp and driving a single shaft, with an exhaust port on the port side hull. The first few Dark class boats were painted entirely in standard grey. However, the port side of the hulls would quickly become stained by the diesel exhaust fumes, even after only a short period of use. Initially, an experimental paint scheme was tried on HMS Dark Biter (P1104) around March 1956 that had the rear hull painted in black with the front hull still in grey. This, too, was found to be unsatisfactory, and eventually, it was decided that the entire hull of the Dark class boats was to be painted in black.<br />
<br />
Eighteen Dark class boats served with the Royal Navy. All of these were built with wooden hulls and aluminium decks on aluminium hull frames with the exception of the final boat, the unique HMS Dark Scout (P1116), which had an all-aluminium welded construction, a redesigned bridge, and transom exhaust ports. In addition to these, eight more Dark class boats were also built for export, all built by Saunders-Roe: two standard boats to Finland; five riveted, all-aluminium boats with an additional electric drive system to Burma; and one standard boat to Japan. A further nine Dark class boats were planned to be built as well for Royal Navy service, but these were all cancelled in 1955. During the 1960s and 1970s, of the 18 Dark class boats in Royal Navy service, two were used as target practice with one being sunk. The surviving 17 were sold to various places, including several to Italian law enforcement in the late 1960s.<br />
<br />
HMS Dark Adventurer, pennant number P1101, was the first of the Dark-class boats. She was built by Saunders-Roe in Beaumaris and was completed on 28th October 1954. She was sold in early 1970.<br />
<br />
== Media ==<br />
<!-- ''Excellent additions to the article would be video guides, screenshots from the game, and photos.'' --><br />
<br />
;'''Skins'''<br />
* [https://live.warthunder.com/feed/camouflages/?vehicleCountry=britain&vehicleType=ship&vehicleClass=torpedo_boat&vehicle=uk_dark_class_mtb Skins and camouflages for the {{PAGENAME}} from live.warthunder.com.]<br />
<br />
;Images<br />
<gallery mode="packed" heights="200"><br />
File:Events_Festive2019_Wallpaper.jpg|{{PAGENAME}} wallpaper, from [[wt:en/news/6547-event-festive-events-en|[Event] Festive events!]].<br />
</gallery><br />
<br />
== See also ==<br />
<!-- ''Links to articles on the War Thunder Wiki that you think will be useful for the reader, for example:''<br />
* ''reference to the series of the ship;''<br />
* ''links to approximate analogues of other nations and research trees.'' --><br />
<br />
* {{Specs-Link|uk_dark_class}}<br />
* {{Specs-Link|uk_brave_borderer}}<br />
<br />
== External links ==<br />
<!-- ''Paste links to sources and external resources, such as:''<br />
* ''topic on the official game forum;''<br />
* ''other literature.'' --><br />
<br />
* [https://cfv.org.uk/forum/viewtopic.php?t=215 <nowiki>[Coastal Forces Veterans Forum]</nowiki> The British "Dark" Class]<br />
* [http://cfv.org.uk/research/boat/database <nowiki>[Coastal Forces Veterans]</nowiki> Boat Database]<br />
* [http://www.bmpt.org.uk/boat%20histories/Dark%20Class/index.htm <nowiki>[British Military Powerboat Team]</nowiki> Dark Class Boats]<br />
* [http://dave-mills.yolasite.com/saro-dark-class-mtbs.php <nowiki>[mprints.co.uk]</nowiki> SARO Dark Class MTBs]<br />
* [http://cfv.org.uk/research/boat/database <nowiki>[Coastal Forces Veterans]</nowiki> Boat Database]<br />
<br />
{{Britain boats}}</div>U27474208https://old-wiki.warthunder.com/index.php?title=Dark_Adventurer&diff=102644Dark Adventurer2021-05-12T10:03:44Z<p>U27474208: Readded hull break</p>
<hr />
<div>{{Specs-Card<br />
|code=uk_dark_class<br />
|images={{Specs-Card-Image|GarageImage_{{PAGENAME}}.jpg}}<br />
}}<br />
<br />
== Description ==<br />
<!-- ''In the first part of the description, cover the history of the ship's creation and military application. In the second part, tell the reader about using this ship in the game. Add a screenshot: if a beginner player has a hard time remembering vehicles by name, a picture will help them identify the ship in question.'' --><br />
The '''{{Specs|name}}''' is a rank {{Specs|rank}} British motor gun boat {{Battle-rating}}. It was introduced in [[Update 1.83 "Masters of the Sea"]] as part of the British fleet closed beta test. With the split of the naval tech trees in [[Update "New Power"]], {{PAGENAME}} was moved to the coastal fleet tech tree.<br />
<br />
== General info ==<br />
=== Survivability and armour ===<br />
{{Specs-Fleet-Armour}}<br />
<!-- ''Talk about the vehicle's armour. Note the most well-defended and most vulnerable zones, e.g. the ammo magazine. Evaluate the composition of components and assemblies responsible for movement and manoeuvrability. Evaluate the survivability of the primary and secondary armaments separately. Don't forget to mention the size of the crew, which plays an important role in fleet mechanics. Save tips on preserving survivability for the "Usage in battles" section. If necessary, use a graphical template to show the most well-protected or most vulnerable points in the armour.'' --><br />
<br />
Dark class (FPB 1101) has the following armour layout:<br />
<br />
* [[8cwt QF Mk I (114 mm)|114 mm 8cwt QF Mk I]] gunshield: 12.7 mm, hardened armour<br />
* Hull: 40 mm, wood<br />
* Superstructure: 15 mm, wood<br />
<br />
[[File:{{PAGENAME}}_internals.png|thumb|Dark class (FPB 1101) internals (starboard side). Note the ammo racks below the forward gun.]]<br />
<br />
Like most coastal vessels, Dark class (FPB 1101) has no practical armour. The gunshield is largely superficial, so while it may stop low-calibre machine guns, heavy machine guns and cannons will easily penetrate it at any range. The hull and superstructure are unarmoured and will not stop any sort of gunfire. <br />
<br />
The hull is split into four hull sections. Starting from the bow and working towards the stern, the first section starts at the bow and ends just in front of forward gun; the second ends just after the bridge; the third ends where the fuel tanks end, just in front of the engines; and the fourth ends at the stern. Any round with a large enough diameter and explosive mass can hull break Dark class (FPB 1101). In general, this is limited to HE rounds greater with a diameter greater than or equal to 4 inches (102 mm) and with an explosive mass greater than 1.5 kg. At Dark class (FPB 1101)'s battle rating, the only guns that can hull break her are:<br />
<br />
* the [[10.5 cm SK C/32 (105 mm)|10.5 cm SK C/32]], found on {{Specs-Link|germ_escort_typem1943}}; and<br />
* the [[8cwt QF Mk I (114 mm)|114 mm 8cwt QF Mk I]], found on Dark class (FPB 1101) herself.<br />
<br />
There is one ammunition storage that holds ammunition for both the primary and secondary gun turrets. It is located directly behind the forward gun turret just above the waterline. Destroying it will instantly destroy the boat. <br />
<br />
Dark class (FPB 1101) has a crew complement of 15. With a stock crew, Dark class (FPB 1101) is knocked out when 10 crew are lost; with an aced crew, this is increased to 11. Overall, the survivability is average. <br />
<br />
=== Mobility ===<br />
{{Specs-Fleet-Mobility}}<br />
<!-- ''Write about the ship's mobility. Evaluate its power and manoeuvrability, rudder rerouting speed, stopping speed at full tilt, with its maximum forward and reverse speed.'' --><br />
<br />
{{NavalMobility<br />
|SpeedForwardStockAB = 73<br />
|SpeedBackStockAB = 27<br />
|TurnTimeStockAB = 26.46<br />
|TurnSpeedStockAB = 45.62<br />
<br />
|TurnTimeSpadedAB = 17.53<br />
|TurnSpeedSpadedAB = 28.67<br />
<br />
|SpeedForwardStockRB = 64<br />
|SpeedBackStockRB = 24<br />
|TurnTimeStockRB = 29.42<br />
|TurnSpeedStockRB = 52.03<br />
<br />
|TurnTimeSpadedRB = 23.53<br />
|TurnSpeedSpadedRB = 40.57<br />
}}<br />
<br />
Dark class (FPB 1101) has a displacement of 64 tons. <br />
<br />
=== Modifications and economy ===<br />
{{Specs-Economy}}<br />
<br />
The recommended modification research order is:<br />
<br />
* Tool Set<br />
* Fire Protection System<br />
* 40 mm HE clips<br />
* 40 mm AP clips<br />
* Smokescreen<br />
* Propeller Replacement<br />
* Improved Rangefinder<br />
* Artillery Support<br />
<br />
After that, prioritize the rest of the seakeeping modifications first, then finish researching the remaining modifications in whatever order you prefer.<br />
<br />
== Armament ==<br />
{{Specs-Fleet-Armaments}}<br />
=== Primary armament ===<br />
{{Specs-Fleet-Primary}}<br />
<!-- ''Provide information about the characteristics of the primary armament. Evaluate their efficacy in battle based on their reload speed, ballistics and the capacity of their shells. Add a link to the main article about the weapon: <code><nowiki>{{main|Weapon name (calibre)}}</nowiki></code>. Broadly describe the ammunition available for the primary armament, and provide recommendations on how to use it and which ammunition to choose.'' --><br />
{{main|8cwt QF Mk I (114 mm)}}<br />
<br />
The primary armament consists of a single 114 mm 8cwt QF Mk I cannon mounted forwards, with a maximum ammunition load of 100 rounds. Stock, the mount can traverse horizontally at a rate of 26°/s and vertically at a rate of 21°/s; with the "Primary Armament Targeting" modification installed, this is increased to 30°/s and 25°/s respectively. The gun is single-shot with a nominal rate of fire of 12 rounds/min. With a stock crew, it can be reloaded in 6.5 seconds; with an aced crew, this is decreased to 5 seconds. <br />
<br />
{| class="wikitable" style="text-align:center" width="25%"<br />
! colspan="2" | Primary armament guidance<br />
|-<br />
! Horizontal !! Vertical<br />
|-<br />
| ±180° || -8°/+12°<br />
|-<br />
|}<br />
<br />
There is only one ammunition type available:<br />
<br />
* 114 mm HE<br />
<br />
{| class="wikitable" style="text-align:center" width="100%"<br />
! colspan="8" | Penetration statistics<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! rowspan="2" | Type of warhead<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 1,000 m !! 2,500 !! 5,000 m !! 7,500 m !! 10,000 m !! 15,000 m<br />
|-<br />
| 114 mm HE || {{Annotation|HE base fuze|High-Explosive with base fuze}} || 34 || 34 || 34 || 34 || 34 || 34<br />
|-<br />
|}<br />
<br />
{| class="wikitable" style="text-align:center" width="100%"<br />
! colspan="10" | Shell details<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! rowspan="2" | Type of warhead<br />
! rowspan="2" | Velocity (m/s)<br />
! rowspan="2" | Projectile mass (kg)<br />
! rowspan="2" | Fuse delay (m)<br />
! rowspan="2" | Fuse sensitivity (mm)<br />
! rowspan="2" | Explosive mass<br>(TNT equivalent) (kg)<br />
! colspan="3" | Ricochet<br />
|-<br />
! 0% !! 50% !! 100%<br />
|-<br />
| 114 mm HE || {{Annotation|HE base fuze|High-Explosive with base fuze}} || 457|| 6.66 || 0 || 0.1 || 2.9 || 79° || 80° || 81°<br />
|-<br />
|}<br />
<br />
The 114 mm HE round is able to hull break most vessels smaller than subchasers.<br />
<br />
=== Secondary armament ===<br />
{{Specs-Fleet-Secondary}}<br />
<!-- ''Some ships are fitted with weapons of various calibres. Secondary armaments are defined as weapons chosen with the control <code>Select secondary weapon</code>. Evaluate the secondary armaments and give advice on how to use them. Describe the ammunition available for the secondary armament. Provide recommendations on how to use them and which ammunition to choose. Remember that any anti-air armament, even heavy calibre weapons, belong in the next section. If there is no secondary armament, remove this section.'' --><br />
{{main|QF Mark VII (40 mm)}}<br />
<br />
The secondary armament consists of a single 40 mm QF Mk VII cannon mounted aft with a maximum ammunition load of 1500 rounds. Stock, the mount can traverse horizontally at a rate of 34°/s and vertically at a rate of 29°/s; with the "Auxiliary Armament Targeting" modification installed, this is increased to 40°/s and 34°/s respectively. The gun has a magazine capacity of 4 rounds and a cycle rate of fire of 160 rounds/min. With a stock crew, it can be reloaded in 0.49 seconds; with an aced crew, this is decreased to 0.38 seconds. The reload is short enough that there is a seamless transition between magazines, although continuously firing for too long will cause the gun to overheat and jam. This happens after continuously firing for about 1.25 min, or about 200 rounds. There is no noticeable drop in accuracy as the gun overheats.<br />
<br />
{| class="wikitable" style="text-align:center" width="25%"<br />
! colspan="2" | Secondary armament guidance<br />
|-<br />
! Horizontal !! Vertical<br />
|-<br />
| ±180° || -10°/+89°<br />
|-<br />
|}<br />
<br />
There are three ammunition types available:<br />
<br />
* Universal: {{Annotation|AP-T|Armour-piercing tracer}}{{-}}{{Annotation|HEFI-T|High-explosive fragmentary incendiary tracer}}<br />
* 40 mm HE clips: {{Annotation|HEFI-T|High-explosive fragmentary incendiary tracer}}{{-}}{{Annotation|HEFI-T|High-explosive fragmentary incendiary tracer}}{{-}}{{Annotation|HEFI-T|High-explosive fragmentary incendiary tracer}}{{-}}{{Annotation|AP-T|Armour-piercing tracer}}<br />
* 40 mm AP clips: {{Annotation|AP-T|Armour-piercing tracer}}{{-}}{{Annotation|AP-T|Armour-piercing tracer}}{{-}}{{Annotation|AP-T|Armour-piercing tracer}}{{-}}{{Annotation|HEFI-T|High-explosive fragmentary incendiary tracer}}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="7" | Penetration statistics<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| Universal || 80 || 77 || 66 || 57 || 50 || 45<br />
|-<br />
| 40 mm HE clips || 80 || 77 || 66 || 57 || 50 || 45<br />
|-<br />
| 40 mm AP clips || 80 || 77 || 66 || 57 || 50 || 45<br />
|-<br />
|}<br />
<br />
The best ammunition is the 40 mm HE clips because it has the highest ratio of HE rounds to AP rounds. Take mostly 40 mm HE clips along with several 40 mm AP clips for armoured targets. Because of the gun's seamless reload, there is no reason to use the Universal belt once the others are unlocked. <br />
<br />
=== Additional armament ===<br />
{{Specs-Fleet-Additional}}<br />
<!-- ''Describe the available additional armaments of the ship: depth charges, mines, torpedoes. Talk about their positions, available ammunition and launch features such as dead zones of torpedoes. If there is no additional armament, remove this section.'' --><br />
{{main|Mk.VII depth charge}}<br />
<br />
Dark class (FPB 1101) has two possible loadouts:<br />
<br />
# Without load<br />
# 2x Mk.VII depth charge<br />
<br />
'''Depth charges'''<br />
<br />
[[File:{{PAGENAME}}_DC_Order.png|thumb|Mk.VII depth charges numbered according to their drop order (click to view a larger image).]]<br />
<br />
The Mk.VII depth charges are carried amidships in front of the aft gun, one on each side. They are dropped one at a time in the following order:<br />
<br />
# Starboard<br />
# Port<br />
<br />
Before spawning, the detonation time delay can be set anywhere between 3 seconds and 10 seconds.<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="7" | Depth charge characteristics<br />
|-<br />
! Mass (kg)<br />
! Explosive type<br />
! Explosive mass (kg)<br />
! TNT equivalent (kg)<br />
! HE armour penetration (mm)<br />
! Armoured vehicle destruction radius (m)<br />
! Fragment dispersion radius (m)<br />
|-<br />
| 196 || TNT || 130 || 130 || 101 || 8 || 122<br />
|-<br />
|}<br />
<br />
There is almost no practical reason to use depth charges on any naval vessel in the game. Although they usually result in a one-hit kill if used properly, they are extremely situational, requiring the player to close to point-blank ranges to even use them. In almost every case, anytime a depth charge could be used, the guns can be used instead to greater effect. In fact, depth charges tend to actually be a liability in battle, since they essentially act as exposed ammo racks before they're dropped. They can be shot at, and if destroyed, they have a chance to detonate, instantly destroying the boat.<br />
<br />
Despite this, some success can be had in dropping them either next to, or in front of a large, slow target. If dropping them next to the target, remember the depth charge drop order, since it's most likely that only the depth charges dropped on the side closest to the enemy will deal any damage. If dropping in front of the target, rush in from the sides as quickly as possible and drop them all at once directly in front of the target. For both cases, set the depth charge time delay to the minimum 3 seconds, since any higher time delay will only allow the depth charge to sink further away from the target, giving them more time to move out of the way. Again, using depth charges is extremely situational, and they will only be a liability the vast majority of the time, so take them at your own discretion.<br />
<br />
== Usage in battles ==<br />
<!-- ''Describe the technique of using this ship, the characteristics of her use in a team and tips on strategy. Abstain from writing an entire guide – don't try to provide a single point of view, but give the reader food for thought. Talk about the most dangerous opponents for this vehicle and provide recommendations on fighting them. If necessary, note the specifics of playing with this vehicle in various modes (AB, RB, SB).'' --><br />
<br />
Dark class (FPB 1101)'s main armament, the 114 mm 8cwt QF Mk I, is one of the largest calibre coastal fleet weapons in the game and fires the single strongest HE round of any coastal vessel, allowing it to knock out anything smaller than a sub-chaser. Guns that can hull break are very rare in the coastal fleet, and Dark class (FPB 1101) is, by far, the lowest BR vessel equipped with one. However, against sub-chasers and other larger vessels, the damage is lacklustre, often requiring multiple hits to destroy a single hull segment. Additionally, the terrible muzzle velocity and very poor ballistics make the gun difficult to use in practice, with it only really effective against stationary targets or at very close ranges, within 500 m at most, and while the muzzle velocity is bad, it isn't quite bad enough to allow the 8cwt QF Mk I to fire from behind cover. Because of this, and despite the one-shot potential, the 8cwt QF Mk I is simply outclassed by the secondary 40 mm QF Mark VII in the vast majority of situations.<br />
<br />
In battle, make the most of the QF Mark VII by switching to manual control with Alt+2. The best advantage of the QF Mark VII over many other coastal weapons is its seamless reload. Without having to worry about reloading, vessels equipped with these types of weapons can be played much more aggressively. However, on Dark class (FPB 1101), the gun is mounted aft, which limits its versatility by preventing it from firing forwards and increasing the time needed to traverse the gun from one side to the other. While being mounted aft does come with some benefits—mainly, it gets destroyed less often—this is an overall net disadvantage and limits Dark class (FPB 1101)'s effectiveness in comparison with vessels with forward-mounted guns, like {{Specs-Link|uk_dark_class_mtb}}.<br />
<br />
Because of this, try to not be the first to rush into action and avoid meeting enemies head-on as much as possible, since it takes some time to turn the hull to get the QF Mark VII on target. Instead, flank the enemy and try to get into ambush positions behind cover. Once in place, turn the hull around so that the stern is facing towards the enemy and use the QF Mark VII to make short work of anything that passes by, prioritizing armoured targets if possible. Dark class (FPB 1101) has a somewhat poor reaction time, so try not to stay in one place for too long to avoid being flanked yourself. Since the hull is already turned around, you can quickly retreat if necessary by using smoke and going forwards. In general, stick to close-range engagements on the flanks with the QF Mark VII, but don't be afraid to switch back to the 8cwt QF Mk I to one-shot tricky opponents either.<br />
<br />
While manually controlling the QF Mark VII, there are several things to keep in mind. First, while you don't have to worry about reloads, the QF Mark VII is one of the few weapons that can overheat, causing it to jam after continuously firing about 200 rounds. This is more than enough for multiple engagements, though, and the overheating doesn't have any noticeable negative effect on accuracy as is the case with some other guns. However, you should still pay attention to the overheating and occasionally retreat to let the gun cool off. The second thing to consider is what to do with the primary 8cwt QF Mk I. This gun is completely useless against aircraft, and under AI control, it is practically worthless against surface targets too. Because of this, it's best to just disable the AI gunners. This keeps the gun loaded, level, and forward-facing for when it's actually needed. This ties into the last thing to be aware of, which is that there will be no AI anti-aircraft defense while playing like this, so always look out for aircraft. The AI gunners are very inaccurate against aircraft unless the enemy is coming directly head-on, so don't bother giving control of the QF Mark VII back to the AI gunners; just try to shoot down enemy aircraft manually.<br />
<br />
=== Pros and cons ===<br />
<!-- ''Summarise and briefly evaluate the vehicle in terms of its characteristics and combat effectiveness. Mark its pros and cons in the bulleted list. Try not to use more than 6 points for each of the characteristics. Avoid using categorical definitions such as "bad", "good" and the like - use substitutions with softer forms such as "inadequate" and "effective".'' --><br />
<br />
'''Pros:'''<br />
<br />
* Primary armament can hull break<br />
* Secondary armament: very good damage output, high armour penetration, seamless reload<br />
<br />
'''Cons:'''<br />
<br />
* Primary armament: very low muzzle velocity, low rate of fire, difficult to use<br />
* Secondary armament is mounted aft, cannot fire directly forwards<br />
<br />
== History ==<br />
<!-- ''Describe the history of the creation and combat usage of the ship in more detail than in the introduction. If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the ship and adding a block "/History" (example: <nowiki>https://wiki.warthunder.com/(Ship-name)/History</nowiki>) and add a link to it here using the <code>main</code> template. Be sure to reference text and sources by using <code><nowiki><ref></ref></nowiki></code>, as well as adding them at the end of the article with <code><nowiki><references /></nowiki></code>. This section may also include the ship's dev blog entry (if applicable) and the in-game encyclopedia description (under <code><nowiki>=== In-game description ===</nowiki></code>, also if applicable).'' --><br />
<br />
The Dark class fast patrol boats, also known as the Admiralty Type "A" Fast Patrol Boat (FPB), were 18 patrol boats used by the Royal Navy, with another 8 built for export. The class was originally ordered in the late 1940s, calling for a new diesel-powered FPB, with Saunders-Roe eventually winning the design contract in early 1952. The Dark class was built between 1954 and 1958 primarily by Saunders-Roe alongside several other British shipbuilding companies. The Dark class had interchangeable armaments and could be configured as motor torpedo boats, as motor gun boats, or as minelayers. These armaments include:<br />
<br />
* 4x 21-inch torpedoes<br />
* 1x 40 mm Bofors gun (forward), 2x 21-inch torpedoes<br />
* 1x 40 mm Bofors gun (aft), 1x 4.5-inch cannon (forward)<br />
* 16x mines<br />
<br />
The Dark class boats had a length of 71 ft. 8 in., a beam of 19 ft. 5 in., a draught of 6 ft. 1 in, and a standard displacement of 50 long tons and were the first of their kind in Royal Navy service to use diesel engines. Each boat was powered by two 18 cylinder Napier Deltic diesel engines, each producing 2,500 bhp and driving a single shaft, with an exhaust port on the port side hull. The first few Dark class boats were painted entirely in standard grey. However, the port side of the hulls would quickly become stained by the diesel exhaust fumes, even after only a short period of use. Initially, an experimental paint scheme was tried on HMS Dark Biter (P1104) around March 1956 that had the rear hull painted in black with the front hull still in grey. This, too, was found to be unsatisfactory, and eventually, it was decided that the entire hull of the Dark class boats was to be painted in black.<br />
<br />
Eighteen Dark class boats served with the Royal Navy. All of these were built with wooden hulls and aluminium decks on aluminium hull frames with the exception of the final boat, the unique HMS Dark Scout (P1116), which had an all-aluminium welded construction, a redesigned bridge, and transom exhaust ports. In addition to these, eight more Dark class boats were also built for export, all built by Saunders-Roe: two standard boats to Finland; five riveted, all-aluminium boats with an additional electric drive system to Burma; and one standard boat to Japan. A further nine Dark class boats were planned to be built as well for Royal Navy service, but these were all cancelled in 1955. During the 1960s and 1970s, of the 18 Dark class boats in Royal Navy service, two were used as target practice with one being sunk. The surviving 17 were sold to various places, including several to Italian law enforcement in the late 1960s.<br />
<br />
HMS Dark Adventurer, pennant number P1101, was the first of the Dark-class boats. She was built by Saunders-Roe in Beaumaris and was completed on 28th October 1954. She was sold in early 1970.<br />
<br />
== Media ==<br />
<!-- ''Excellent additions to the article would be video guides, screenshots from the game, and photos.'' --><br />
<br />
;Skins<br />
* [https://live.warthunder.com/feed/camouflages/?vehicleCountry=britain&vehicleType=ship&vehicleClass=gun_boat&vehicle=uk_dark_class Skins and camouflages for the {{PAGENAME}} from live.warthunder.com.]<br />
<br />
;Images<br />
<gallery mode="packed" heights="200"><br />
File:Dark_class_Newsflash_from_Igromir_2016_001.jpg<br />
File:Dark_class_Newsflash_from_Igromir_2016_002.jpg<br />
</gallery><br />
<br />
;Videos<br />
{{Youtube-gallery|LW_BVvR7CIg|'''The Shooting Range #122''' - ''War Machines'' section at 00:32 discusses the Dark class (FPB 1101).}}<br />
<br />
== See also ==<br />
<!-- ''Links to articles on the War Thunder Wiki that you think will be useful for the reader, for example:''<br />
* ''reference to the series of the ship;''<br />
* ''links to approximate analogues of other nations and research trees.'' --><br />
<br />
* {{Specs-Link|uk_dark_class_mtb}}<br />
* {{Specs-Link|uk_brave_borderer}}<br />
<br />
== External links ==<br />
<!-- ''Paste links to sources and external resources, such as:''<br />
* ''topic on the official game forum;''<br />
* ''other literature.'' --><br />
<br />
* [[wt:en/news/4272-development-newsflash-from-igromir-2016-new-ships-and-first-look-at-japanese-ground-forces-en|[Development] Newsflash from IgroMir 2016! New ships and first look at Japanese Ground Forces!]]<br />
* [https://cfv.org.uk/forum/viewtopic.php?t=215 <nowiki>[Coastal Forces Veterans Forum]</nowiki> The British "Dark" Class]<br />
* [http://cfv.org.uk/research/boat/database <nowiki>[Coastal Forces Veterans]</nowiki> Boat Database]<br />
* [http://www.bmpt.org.uk/boat%20histories/Dark%20Class/index.htm <nowiki>[British Military Powerboat Team]</nowiki> Dark Class Boats]<br />
* [http://dave-mills.yolasite.com/saro-dark-class-mtbs.php <nowiki>[mprints.co.uk]</nowiki> SARO Dark Class MTBs]<br />
* [http://cfv.org.uk/research/boat/database <nowiki>[Coastal Forces Veterans]</nowiki> Boat Database]<br />
<br />
{{Britain boats}}</div>U27474208https://old-wiki.warthunder.com/index.php?title=S-100&diff=102639S-1002021-05-12T09:53:11Z<p>U27474208: /* Anti-aircraft armament */ Removed MG34 from main</p>
<hr />
<div>{{Specs-Card<br />
|code=germ_s_100_class<br />
|images={{Specs-Card-Image|GarageImage_{{PAGENAME}}.jpg}}<br />
}}<br />
<br />
== Description ==<br />
<!-- ''In the first part of the description, cover the history of the ship's creation and military application. In the second part, tell the reader about using this ship in the game. Add a screenshot: if a beginner player has a hard time remembering vehicles by name, a picture will help them identify the ship in question.'' --><br />
The '''{{Specs|name}}''' is a rank {{Specs|rank}} German motor torpedo boat {{Battle-rating}}. It was introduced in [[Update 1.79 "Project X"]] as part of the fleet closed beta test.<br />
<br />
== General info ==<br />
=== Survivability and armour ===<br />
{{Specs-Fleet-Armour}}<br />
<!-- ''Talk about the vehicle's armour. Note the most well-defended and most vulnerable zones, e.g. the ammo magazine. Evaluate the composition of components and assemblies responsible for movement and manoeuvrability. Evaluate the survivability of the primary and secondary armaments separately. Don't forget to mention the size of the crew, which plays an important role in fleet mechanics. Save tips on preserving survivability for the "Usage in battles" section. If necessary, use a graphical template to show the most well-protected or most vulnerable points in the armour.'' --><br />
<br />
The S-100, like most low tier ships, has limited armour protection. The bridge is protected by 12 mm of hardened armour and the two rear turrets are similarly defended. None of the other components of the ship, such as the engines and fuel tanks, are protected.<br />
<br />
=== Mobility ===<br />
{{Specs-Fleet-Mobility}}<br />
''Write about the ship's mobility. Evaluate its power and manoeuvrability, rudder rerouting speed, stopping speed at full tilt, with its maximum forward and reverse speed.''<br />
<br />
{{NavalMobility}}<br />
<br />
=== Modifications and economy ===<br />
{{Specs-Economy}}<br />
<br />
== Armament ==<br />
{{Specs-Fleet-Armaments}}<br />
=== Primary armament ===<br />
{{Specs-Fleet-Primary}}<br />
{{main|2 cm/65 C/38 (20 mm)|2 cm/65 Flakzwilling 38 (20 mm)}}<br />
<br />
''Provide information about the characteristics of the primary armament. Evaluate their efficacy in battle based on their reload speed, ballistics and the capacity of their shells. Add a link to the main article about the weapon: <code><nowiki>{{main|Weapon name (calibre)}}</nowiki></code>. Broadly describe the ammunition available for the primary armament, and provide recommendations on how to use it and which ammunition to choose.''<br />
<br />
=== Secondary armament ===<br />
{{Specs-Fleet-Secondary}}<br />
{{main|3.7 cm FlaK-Lafette C/36 (37 mm)}}<br />
<br />
''Some ships are fitted with weapons of various calibres. Secondary armaments are defined as weapons chosen with the control <code>Select secondary weapon</code>. Evaluate the secondary armaments and give advice on how to use them. Describe the ammunition available for the secondary armament. Provide recommendations on how to use them and which ammunition to choose. Remember that any anti-air armament, even heavy calibre weapons, belong in the next section. If there is no secondary armament, remove this section.''<br />
<br />
=== Anti-aircraft armament ===<br />
{{Specs-Fleet-AA}}<br />
<!-- ''An important part of the ship's armament responsible for air defence. Anti-aircraft armament is defined by the weapon chosen with the control <code>Select anti-aircraft weapons</code>. Talk about the ship's anti-air cannons and machine guns, the number of guns and their positions, their effective range, and about their overall effectiveness – including against surface targets. If there are no anti-aircraft armaments, remove this section.'' --><br />
{{main|MG 15 (7.92 mm)}}<br />
<br />
One machine gun is mounted on either side of the bridge. Because of this, they have very limited traverse and are mostly ineffective against aircraft. However, they do have a high rate of fire.<br />
<br />
=== Additional armament ===<br />
{{Specs-Fleet-Additional}}<br />
<!-- ''Describe the available additional armaments of the ship: depth charges, mines, torpedoes. Talk about their positions, available ammunition and launch features such as dead zones of torpedoes. If there is no additional armament, remove this section.'' --><br />
{{main|G7a (533 mm)|EMF mine}}<br />
<br />
The torpedo tubes are fixed to the hull of the ship so torpedoes must be aimed by changing the direction of the vessel. They have a maximum speed of 81 km/h.<br />
<br />
== Usage in battles ==<br />
''Describe the technique of using this ship, the characteristics of her use in a team and tips on strategy. Abstain from writing an entire guide – don't try to provide a single point of view, but give the reader food for thought. Talk about the most dangerous opponents for this vehicle and provide recommendations on fighting them. If necessary, note the specifics of playing with this vehicle in various modes (AB, RB, SB).''<br />
<br />
=== Pros and cons ===<br />
''Summarise and briefly evaluate the vehicle in terms of its characteristics and combat effectiveness. Mark its pros and cons in the bulleted list. Try not to use more than 6 points for each of the characteristics. Avoid using categorical definitions such as "bad", "good" and the like - use substitutions with softer forms such as "inadequate" and "effective".''<br />
<br />
'''Pros:'''<br />
*<br />
<br />
'''Cons:'''<br />
*<br />
<br />
== History ==<br />
''Describe the history of the creation and combat usage of the ship in more detail than in the introduction. If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the ship and adding a block "/History" (example: <nowiki>https://wiki.warthunder.com/(Ship-name)/History</nowiki>) and add a link to it here using the <code>main</code> template. Be sure to reference text and sources by using <code><nowiki><ref></ref></nowiki></code>, as well as adding them at the end of the article with <code><nowiki><references /></nowiki></code>. This section may also include the ship's dev blog entry (if applicable) and the in-game encyclopedia description (under <code><nowiki>=== In-game description ===</nowiki></code>, also if applicable).''<br />
<br />
== Media ==<br />
<!-- ''Excellent additions to the article would be video guides, screenshots from the game, and photos.'' --><br />
[[File:Germany ship locked.jpg|thumb|none|250px|In-game graphic showcasing two S-100s on an attack run in a rough seas.]]<br />
<br />
== See also ==<br />
''Links to articles on the War Thunder Wiki that you think will be useful for the reader, for example:''<br />
* ''reference to the series of the ship;''<br />
* ''links to approximate analogues of other nations and research trees.''<br />
<br />
== External links ==<br />
<!-- ''Paste links to sources and external resources, such as:''<br />
* ''topic on the official game forum;''<br />
* ''encyclopedia page on the ship;''<br />
* ''other literature.'' --><br />
<br />
* [[wt:en/news/4204-development-s-100-1945-master-of-the-seas-en/|[Devblog] S-100 (1945): Master of the Seas]]<br />
<br />
{{Germany boats}}</div>U27474208https://old-wiki.warthunder.com/index.php?title=Type_93_(13.2_mm)&diff=102638Type 93 (13.2 mm)2021-05-12T09:52:16Z<p>U27474208: /* Vehicles equipped with this weapon */ Removed Kanonenboot K-2</p>
<hr />
<div>[[File:Weapon_Type_93_(13.2_mm).png|thumbnail|right|x250px|The 13.2 mm Type 93 on [[Type K-8 (1944)]].]]<br />
<br />
== Description ==<br />
''Write an introduction to the article in 2-3 small paragraphs. Briefly tell us about the history of the development and combat using the weaponry and also about its features. Compile a list of air, ground, or naval vehicles that feature this weapon system in the game.''<br />
<br />
=== Vehicles equipped with this weapon ===<br />
<!-- ''List out vehicles that are equipped with the weapon.'' --><br />
<br />
{{Navigation-Start|Vehicles equipped with this weapon}}<br />
<br />
{{Navigation-First-Line|'''Motor torpedo boats'''}}{{Specs-Link|jp_t14_class}}<br />
<br />
{{Navigation-Line|'''Sub-chasers'''}}{{Specs-Link|jp_kusen_tei_13_1942}}{{-}}{{Specs-Link|jp_kusen_tei_13_1944}}<br />
<br />
{{Navigation-Line|'''Destroyers'''}}{{Specs-Link|jp_destroyer_fubuki}}{{-}}{{Specs-Link|jp_destroyer_kiyoshimo}}{{-}}{{Specs-Link|jp_destroyer_shimakaze}}<br />
<br />
{{Navigation-Line|'''Light cruisers'''}}{{Specs-Link|jp_cruiser_mogami_mikuma}}{{-}}{{Specs-Link|jp_cruiser_sendai}}{{-}}{{Specs-Link|jp_cruiser_mogami_suzuya}}<br />
<br />
{{Navigation-Line|'''Heavy cruisers'''}}{{Specs-Link|jp_cruiser_furutaka}}{{-}}{{Specs-Link|jp_cruiser_kako}}{{-}}{{Specs-Link|jp_cruiser_mogami}}<br />
<br />
{{Navigation-End}}<br />
<br />
== General info ==<br />
''Tell us about the tactical and technical characteristics of the cannon or machine gun.''<br />
<br />
=== Available ammunition ===<br />
''Describe the shells that are available for the weapon and their features and purpose. If it concerns autocannons or machine guns, write about different ammo belts and what is inside (which types of shells).''<br />
<br />
=== Comparison with analogues ===<br />
''Give a comparative description of cannons/machine guns that have firepower equal to this weapon.''<br />
<br />
== Usage in battles ==<br />
''Describe the cannon/machine gun in the game - its distinctive features, tactics of usage against notable opponents. Please don't write a "guide" - do not impose a single point of view, but give the reader food for thought.''<br />
<br />
=== Pros and cons ===<br />
''Summarise and briefly evaluate the weaponry in terms of its characteristics and combat effectiveness. Mark pros and cons as a list.''<br />
<br />
'''Pros:'''<br />
*<br />
<br />
'''Cons:'''<br />
*<br />
<br />
== History ==<br />
<!-- ''Examine the history of the creation and combat usage of the weapon in more detail than in the introduction. If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the weapon and adding a block "/History" (example: <nowiki>https://wiki.warthunder.com/(Weapon-name)/History</nowiki>) and add a link to it here using the <code>main</code> template. Be sure to reference text and sources by using <code><nowiki><ref></ref></nowiki></code>, as well as adding them at the end of the article with <code><nowiki><references /></nowiki></code>.'' --><br />
<br />
The {{PAGENAME}} was a license-built French Hotchkiss M1929 heavy machine gun which saw wide use with Japanese forces. First licensed units were manufactured in 1935, reaching 1,500 units a month by 1944. Type 93 saw extremely wide use in Imperial Japanese Navy but was also used by the Imperial Army as a stand-alone heavy machine gun (primarily in anti-aircraft emplacements) or equipped on vehicles, such as Type 92 Tankettes.<br />
<br />
The gun had a total length of 1.4 m and an empty weight of 42 kg. Magazine of only 30 rounds firing at 450 rpm allowed for a continuous fire of 4 seconds before the gun had to be reloaded. The maximum vertical range of the weapon was 4,000 meters or 6,000 meters when aimed at a 45° angle.<br />
<br />
Four primary types of ammunition were used: Armor-piercing, Incendiary, Tracer and Exercise.<br />
<br />
== Media ==<br />
<!-- ''Excellent additions to the article would be video guides, screenshots from the game, and photos.'' --><br />
;Images<br />
<div><ul><br />
<li style="display: inline-block;"> [[File:Type 93 13.2 mm.png|350px|thumb|left|The {{PAGENAME}} on the Type T-14.]] </li><br />
</ul></div><br />
<br />
== See also ==<br />
''Links to the articles on the War Thunder Wiki that you think will be useful for the reader, for example:''<br />
* ''reference to the article about the variant of the cannon/machine gun;''<br />
* ''references to approximate analogues by other nations and research trees.''<br />
<br />
== External links ==<br />
''Paste links to sources and external resources, such as:''<br />
* ''topic on the official game forum;''<br />
* ''encyclopedia page on the weapon;''<br />
* ''other literature.''<br />
<br />
{{Naval machine guns}}<br />
<br />
[[Category:Naval machine guns]]</div>U27474208https://old-wiki.warthunder.com/index.php?title=MG08_pattern_1908_(7.92_mm)&diff=102637MG08 pattern 1908 (7.92 mm)2021-05-12T09:50:42Z<p>U27474208: Removed IJN Settsu</p>
<hr />
<div>== Description ==<br />
''Write an introduction to the article in 2-3 small paragraphs. Briefly tell us about the history of the development and combat using the weaponry and also about its features. Compile a list of air, ground, or naval vehicles that feature this weapon system in the game.''<br />
<br />
=== Vehicles equipped with this weapon ===<br />
<!-- ''List out vehicles that are equipped with the weapon.'' --><br />
<br />
* {{Specs-Link|ussr_destroyer_kerch}}<br />
* {{Specs-Link|germ_battlecruiser_von_der_tann}}<br />
* {{Specs-Link|germ_battleship_westfalen}}<br />
<br />
== General info ==<br />
''Tell us about the tactical and technical characteristics of the cannon or machine gun.''<br />
<br />
=== Available ammunition ===<br />
''Describe the shells that are available for the weapon and their features and purpose. If it concerns autocannons or machine guns, write about different ammo belts and what is inside (which types of shells).''<br />
<br />
=== Comparison with analogues ===<br />
''Give a comparative description of cannons/machine guns that have firepower equal to this weapon.''<br />
<br />
== Usage in battles ==<br />
''Describe the cannon/machine gun in the game - its distinctive features, tactics of usage against notable opponents. Please don't write a "guide" - do not impose a single point of view, but give the reader food for thought.''<br />
<br />
=== Pros and cons ===<br />
''Summarise and briefly evaluate the weaponry in terms of its characteristics and combat effectiveness. Mark pros and cons as a list.''<br />
<br />
'''Pros:'''<br />
*<br />
<br />
'''Cons:'''<br />
*<br />
<br />
== History ==<br />
''Examine the history of the creation and combat usage of the weapon in more detail than in the introduction. If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the weapon and adding a block "/History" (example: <nowiki>https://wiki.warthunder.com/(Weapon-name)/History</nowiki>) and add a link to it here using the <code>main</code> template. Be sure to reference text and sources by using <code><nowiki><ref></ref></nowiki></code>, as well as adding them at the end of the article with <code><nowiki><references /></nowiki></code>.''<br />
<br />
== Media ==<br />
''Excellent additions to the article would be video guides, screenshots from the game, and photos.''<br />
<br />
== See also ==<br />
''Links to the articles on the War Thunder Wiki that you think will be useful for the reader, for example:''<br />
* ''reference to the article about the variant of the cannon/machine gun;''<br />
* ''references to approximate analogues by other nations and research trees.''<br />
<br />
== External links ==<br />
''Paste links to sources and external resources, such as:''<br />
* ''topic on the official game forum;''<br />
* ''other literature.''<br />
<br />
{{Naval machine guns}}<br />
<br />
[[Category:Naval machine guns]]</div>U27474208https://old-wiki.warthunder.com/index.php?title=MG34_(7.92_mm)&diff=102635MG34 (7.92 mm)2021-05-12T09:39:07Z<p>U27474208: /* Vehicles equipped with this weapon */ Removed S-100 (1945)</p>
<hr />
<div>{{AutoWeapon-Card<br />
| image = File:Weapon_MG_34_(7.92_mm).png<br />
| title = {{PAGENAME}}<br />Maschinengewehr 34<br />
| MG-calibre = 7.92<br />
| Belt-capacity = 150<br />
| RoF = 900<br />
| MG-velocity = 880 - 905<br />
| MG-max-pen = 13<br />
}}<br />
<br />
== Description ==<br />
<!-- ''Write an introduction to the article in 2-3 small paragraphs. Briefly tell us about the history of the development and combat using the weaponry and also about its features. Compile a list of air, ground, or naval vehicles that feature this weapon system in the game.'' --><br />
[[File:Weapon MG 34 (7.92 mm).png|350px|thumb|left|The {{PAGENAME}} on the Pz.II F.]]<br />
{{Break}}<br />
The MG 34 is a recoil-operated, air-cooled machine gun of German origin.<ref name=":0">''Encyclopedia of Weapons of World War II''. p. 246.</ref> Development of the MG 34 began in 1934 by Heinrich Vollmer, eventually seeing service with the Francoist Spanish forces in the Spanish Civil War. Inspired heavily by Rheinmetall's MG 30, changes and developments made to the MG 34 design led it to become the first General-Purpose Machine Gun (GPMG).<ref name=":0" /> The weapon was revolutionary for its time, boasting the highest fire rate of any machine gun at the time,<ref>Haskew, Michael E (2012). ''Small Arms 1914-1945: The Essential Weapons Identification Guide''. London: Amber Books. p. 92. <nowiki>ISBN 978-1-908273-85-7</nowiki>.</ref> though its technological superiority came at a cost, causing it to be far too expensive and complicated to mass-produce on its own. Thus, it was produced and implemented in tandem with similar machine guns such as the [[MG 42 (7.92 mm)|MG 42]].<ref>''The Encyclopedia of Weapons of World War II''. Chris Bishop. Sterling Publishing Company. 2002. page 245 & 246</ref><br />
<br />
=== Vehicles equipped with this weapon ===<br />
<!-- ''List out vehicles that are equipped with the weapon.'' --><br />
<br />
{{Navigation-Start|Vehicles equipped with this weapon}}<br />
<br />
{{Navigation-First-Line|'''Light tanks'''}}{{Specs-Link|germ_pzkpfw_II_ausf_C}}{{-}}{{Specs-Link|germ_pzkpfw_II_ausf_C_DAK}}{{-}}{{Specs-Link|germ_pzkpfw_II_ausf_F}}<br />
<br />
{{Navigation-First-Line|'''Medium tanks'''}}<br />
{{Navigation-Line|Pz.Kpfw.III}}{{Specs-Link|germ_pzkpfw_III_ausf_B}}{{-}}{{Specs-Link|germ_pzkpfw_III_ausf_E}}{{-}}{{Specs-Link|germ_pzkpfw_III_ausf_F}}{{-}}{{Specs-Link|germ_pzkpfw_III_ausf_J_L42}}{{-}}{{Specs-Link|ussr_pzkpfw_III_ausf_J_L42}}{{-}}{{Specs-Link|germ_pzkpfw_III_ausf_J}}{{-}}{{Specs-Link|germ_pzkpfw_III_ausf_J_td}}{{-}}{{Specs-Link|germ_pzkpfw_III_ausf_L}}{{-}}{{Specs-Link|germ_pzkpfw_III_ausf_M}}{{-}}{{Specs-Link|germ_pzkpfw_III_ausf_N}}{{-}}{{Specs-Link|it_pzkpfw_III_ausf_N}}<br />
{{Navigation-Line|Pz.Kpfw.IV}}{{Specs-Link|germ_pzkpfw_IV_ausf_C}}{{-}}{{Specs-Link|germ_pzkpfw_IV_ausf_E}}{{-}}{{Specs-Link|germ_pzkpfw_IV_ausf_F}}{{-}}{{Specs-Link|germ_pzkpfw_IV_ausf_F2}}{{-}}{{Specs-Link|germ_pzkpfw_IV_ausf_G}}{{-}}{{Specs-Link|it_pzkpfw_IV_ausf_G}}{{-}}{{Specs-Link|germ_pzkpfw_IV_ausf_H}}{{-}}{{Specs-Link|germ_pzkpfw_IV_ausf_J}}{{-}}{{Specs-Link|germ_panzerbefelhswagen_IV_ausf_J}}<br />
{{Navigation-Line|Pz.Kpfw.V}}{{Specs-Link|germ_pzkpfw_V_ausf_a_panther}}{{-}}{{Specs-Link|germ_pzkpfw_V_ausf_d_panther}}{{-}}{{Specs-Link|germ_pzkpfw_V_ausf_f_panther}}{{-}}{{Specs-Link|germ_pzkpfw_V_ausf_g_panther}}{{-}}{{Specs-Link|germ_pzkpfw_V_ersatz_m10}}{{-}}{{Specs-Link|fr_pzkpfw_V_panther_dauphine}}{{-}}{{Specs-Link|ussr_pzkpfw_V}}{{-}}{{Specs-Link|germ_panther_II}}<br />
<br />
{{Navigation-First-Line|'''Heavy tanks'''}}<br />
{{Navigation-Line|KV-1}}{{Specs-Link|germ_kv_1_kwk_40}}<br />
{{Navigation-Line|Pz.Kpfw.VI}}{{Specs-Link|germ_pzkpfw_VI_ausf_h1_tiger}}{{-}}{{Specs-Link|germ_pzkpfw_VI_ausf_h1_tiger_animal_version}}{{-}}{{Specs-Link|germ_pzkpfw_VI_ausf_e_tiger}}{{-}}{{Specs-Link|jp_pzkpfw_VI_ausf_e_tiger}}{{-}}{{Specs-Link|germ_pzkpfw_VI_tiger_P}}{{-}}{{Specs-Link|germ_panzerbefelhswagen_VI_P}}{{-}}{{Specs-Link|germ_pzkpfw_VI_ausf_b_tiger_IIp}}{{-}}{{Specs-Link|germ_pzkpfw_VI_ausf_b_tiger_IIh}}{{-}}{{Specs-Link|germ_pzkpfw_VI_ausf_b_tiger_IIh_kwk46}}{{-}}{{Specs-Link|germ_pzkpfw_VI_ausf_b_tiger_IIh_sla}}<br />
{{Navigation-Line|Pz.Kpfw.VIII}}{{Specs-Link|germ_pzkpfw_Maus}}{{-}}{{Specs-Link|germ_pzkpfw_e_100}}<br />
<br />
{{Navigation-First-Line|'''Tank destroyers'''}}{{Specs-Link|germ_jgdpz_38t}}{{-}}{{Specs-Link|germ_panzerjager_nashorn}}{{-}}{{Specs-Link|germ_panzerjager_panther}}{{-}}{{Specs-Link|germ_panzerbefelhswagen_jagdpanther}}{{-}}{{Specs-Link|germ_panzerjager_tiger}}<br />
<br />
{{Navigation-First-Line|'''SPAA'''}}{{Specs-Link|germ_flakpanzer_IV_Ostwind_2}}<br />
<br />
{{Navigation-First-Line|'''Motor torpedo boats'''}}{{Specs-Link|germ_s38b}}{{-}}{{Specs-Link|germ_s_100_s204_lang}}<br />
<br />
{{Navigation-End}}<br />
<br />
== General info ==<br />
<!-- ''Tell us about the tactical and technical characteristics of the cannon or machine gun.'' --><br />
[[File:A coaxially mounted MG 34 on the Pz.II DAK..jpg|thumb|A Pz.II DAK's '''MG 34'''. The '''MG 34''' (circled in red) is the smaller of the two weapons]]<br />
The MG 34 is a common sight in War Thunder, being mounted coaxially in many German tank turrets and even on some external Anti-Air and Anti-Infantry mounts. It was found to be better suited to such applications than its counterparts, and quickly became the Wehrmacht's weapon of choice for supplying armour with rifle-calibre protection. It was also used as light-AA on certain Kriegsmarine vessels.<br />
<br />
Chambered in 7.92 mm, the MG 34 boasts a fire rate of up to 900 rpm at a velocity of 765 m/s. It can be fed from belts with up to 250 rounds, or drum magazines holding up to 75 rounds.<br />
<br />
=== Available ammunition ===<br />
<!-- ''Describe the shells that are available for the weapon and their features and purpose. If it concerns autocannons or machine guns, write about different ammo belts and what is inside (which types of shells).'' --><br />
[[File:MG34 Naval Mount.png|thumb|The unique mount for the '''MG 34''' on the S-38b.]]<br />
In War Thunder, the MG 34 is a secondary weapon and thus does not have optional belts. It uses one default belt, consisting of AP-I/AP-I/AP-T for tank battles, and straight AP-I for naval.<br />
<br />
==== AP-I Penetration ====<br />
{| class="wikitable"<br />
! Distance !! 0° !! 30° !! 60°<br />
|-<br />
| 10 m || 10 mm || 7 mm || 3 mm<br />
|-<br />
| 100 m || 9 mm || 6 mm || 3 mm<br />
|-<br />
| 500 m || 7 mm || 5 mm || 2 mm<br />
|-<br />
| 1000 m || 4 mm || 3 mm || 1 mm<br />
|-<br />
| 1500 m || 0 mm || 0 mm || 0 mm<br />
|-<br />
| 2000 m || 0 mm || 0 mm || 0 mm<br />
|}<br />
<br />
==== AP-T Penetration ====<br />
{| class="wikitable"<br />
! Distance !! 0° !! 30° !! 60°<br />
|-<br />
| 10 m || 13 mm || 9 mm || 4 mm<br />
|-<br />
| 100 m || 12 mm || 9 mm || 4 mm<br />
|-<br />
| 500 m || 7 mm || 5 mm || 2 mm<br />
|-<br />
| 1000 m || 4 mm || 3 mm || 1 mm<br />
|-<br />
| 1500 m || 1 mm || 0 mm || 0 mm<br />
|-<br />
| 2000 m || 1 mm || 0 mm || 0 mm<br />
|}<br />
<br />
=== Comparison with analogues ===<br />
<!-- ''Give a comparative description of cannons/machine guns that have firepower equal to this weapon.'' --><br />
While having a slower fire rate than the MG 42, both weapons fire the same ammunition at the same velocity, meaning they perform nearly identically. The frequency with which the MG 34 appears means players of the German ground forces will be well-acquainted with the 7.92 calibre which sets the standard for MGs in the German tech tree.<br />
<br />
== Usage in battles ==<br />
<!-- ''Describe the cannon/machine gun in the game - its distinctive features, tactics of usage against notable opponents. Please don't write a "guide" - do not impose a single point of view, but give the reader food for thought.'' --><br />
[[File:Pintle Mounted MG 34.jpg|thumb|An example of a pintle-mounted '''MG 34''' with AA sight on a Tiger I.]]<br />
Being coaxially mounted is a significant advantage for taking out light vehicles such as SPAA or tank destroyers with an exposed crew. On rare occasion, certain fully-enclosed vehicles have so little armour that they can be penetrated by the MG 34 at close range. If you are lucky enough to be driving a vehicle with a roof-mounted MG 34 such as the [[Jagdpanzer 38(t)]], it performs well as a deterrent for attacking aircraft, and might even score you a kill. And as with any other machine gun, it can prove to be a useful tool for spotting enemies for your allies or clearing obstacles.<br />
<br />
=== Pros and cons ===<br />
<!-- ''Summarise and briefly evaluate the weaponry in terms of its characteristics and combat effectiveness. Mark pros and cons as a list.'' --><br />
<br />
'''Pros:'''<br />
* High rate of fire<br />
* Decent penetration for its calibre<br />
* Common usage means it is easy to be familiar with handling this gun<br />
* Large magazine<br />
<br />
'''Cons:'''<br />
* Only proves to be deadly against a limited set of targets<br />
* Not commonly mounted externally, limiting its use against aircraft<br />
<br />
== History ==<br />
''Examine the history of the creation and combat usage of the weapon in more detail than in the introduction. If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the weapon and adding a block "/History" (example: <nowiki>https://wiki.warthunder.com/(Weapon-name)/History</nowiki>) and add a link to it here using the <code>main</code> template. Be sure to reference text and sources by using <code><nowiki><ref></ref></nowiki></code>, as well as adding them at the end of the article with <code><nowiki><references /></nowiki></code>.''<br />
<br />
== Media ==<br />
<!-- ''Excellent additions to the article would be video guides, screenshots from the game, and photos.'' --><br />
<br />
;Images<br />
<gallery mode="packed-hover" heights="200px"><br />
A Pz.II DAK firing its MG 34..jpg|A Pz.II DAK firing its coaxial {{PAGENAME}}.<br />
</gallery><br />
<br />
;Videos<br />
{{Youtube-gallery|E-KgQ-OZJZ8|'''MG-34: The Universal Machine Gun Concept''' - ''Forgotten Weapons''|GfJkU4Sah8I|'''Shooting the MG-34 and MG-42''' - ''Forgotten Weapons''}}<br />
<br />
== See also ==<br />
''Links to the articles on the War Thunder Wiki that you think will be useful for the reader, for example:''<br />
* ''reference to the article about the variant of the cannon/machine gun;''<br />
* ''references to approximate analogues by other nations and research trees.''<br />
<br />
==References==<br />
<references /><br />
<br />
== External links ==<br />
<!-- ''Paste links to sources and external resources, such as:''<br />
* ''topic on the official game forum;''<br />
* ''encyclopedia page on the weapon;''<br />
* ''other literature.'' --><br />
* https://en.wikipedia.org/wiki/MG_34<br />
* https://www.scribd.com/document/192297851/D-124-1-Maschinengewehr-34-Teil-1-Waffe<br />
* http://modernfirearms.net/en/machineguns/germany-machineguns/mg-34-eng/<br />
<br />
{{Tank machine guns}}<br />
{{Naval machine guns}}<br />
<br />
[[Category:Tank machine guns]]<br />
[[Category:Naval machine guns]]</div>U27474208https://old-wiki.warthunder.com/index.php?title=Dark_Aggressor&diff=102454Dark Aggressor2021-05-09T18:11:51Z<p>U27474208: Updated to 2.5; changed "Dark Aggressor" -> "Dark class (FPB 1102)" to match in-game name</p>
<hr />
<div>{{Specs-Card<br />
|code=uk_dark_class_mtb<br />
|images={{Specs-Card-Image|GarageImage_{{PAGENAME}}.jpg}}<br />
}}<br />
<br />
== Description ==<br />
<!-- ''In the first part of the description, cover the history of the ship's creation and military application. In the second part, tell the reader about using this ship in the game. Add a screenshot: if a beginner player has a hard time remembering vehicles by name, a picture will help them identify the ship in question.'' --><br />
The '''{{Specs|name}}''' is a rank {{Specs|rank}} British motor gun boat {{Battle-rating}}. It was introduced in [[Update 1.83 "Masters of the Sea"]] as part of the British fleet closed beta test. With the split of the naval tech trees in [[Update "New Power"]], {{PAGENAME}} was moved to the coastal fleet tech tree.<br />
<br />
== General info ==<br />
=== Survivability and armour ===<br />
{{Specs-Fleet-Armour}}<br />
<!-- ''Talk about the vehicle's armour. Note the most well-defended and most vulnerable zones, e.g. the ammo magazine. Evaluate the composition of components and assemblies responsible for movement and manoeuvrability. Evaluate the survivability of the primary and secondary armaments separately. Don't forget to mention the size of the crew, which plays an important role in fleet mechanics. Save tips on preserving survivability for the "Usage in battles" section. If necessary, use a graphical template to show the most well-protected or most vulnerable points in the armour.'' --><br />
<br />
Dark class (FPB 1102) has the following armour layout:<br />
<br />
* Hull: 40 mm, wood<br />
* Superstructure: 15 mm, wood<br />
<br />
[[File:{{PAGENAME}}_internals.png|thumb|Dark class (FPB 1102) internals (starboard side).]]<br />
<br />
Like most coastal vessels, Dark class (FPB 1102) has no practical armor. The hull and superstructure are unarmoured and will not stop any sort of gunfire. <br />
<br />
The hull is split into four hull sections. Starting from the bow and working towards the stern, the first section starts at the bow and ends just in front of the gun; the second ends after the bridge; the third ends where the fuel tanks end, just in front of the engines; and the fourth ends at the stern. Dark class (FPB 1101) can be hull-broken by any round with a large enough diameter and explosive mass. In general, this is limited to HE rounds greater with a diameter greater than or equal to 4 inches (102 mm) and with an explosive mass greater than 1.5 kg. At Dark class (FPB 1101)'s battle rating, the only guns capable of hull-breaking her are:<br />
<br />
* the [[10.5 cm SK C/32 (105 mm)|10.5 cm SK C/32]], found on {{Specs-Link|germ_escort_typem1943}} and {{Specs-Link|germ_artilleriefahrprahm_typ_d3}}; and<br />
* the [[8cwt QF Mk I (114 mm)|114 mm 8cwt QF Mk I]], found on {{Specs-Link|uk_dark_class}}.<br />
<br />
There is one ammunition storage located directly underneath the gun turret just above the waterline. Destroying it will instantly destroy the boat. <br />
<br />
Dark class (FPB 1102) has a crew complement of 15. With a stock crew, Dark class (FPB 1101) is knocked out when 10 crew are lost; with an aced crew, this is increased to 11. Overall, the survivability is average. <br />
<br />
=== Mobility ===<br />
{{Specs-Fleet-Mobility}}<br />
<!-- ''Write about the ship's mobility. Evaluate its power and manoeuvrability, rudder rerouting speed, stopping speed at full tilt, with its maximum forward and reverse speed.'' --><br />
<br />
{{NavalMobility<br />
|SpeedForwardStockAB = 73<br />
|SpeedBackStockAB = 27<br />
|TurnTimeStockAB = 26.18<br />
|TurnSpeedStockAB = 43.98<br />
<br />
|TurnTimeSpadedAB = 17.38<br />
|TurnSpeedSpadedAB = 27.66<br />
<br />
|SpeedForwardStockRB = 64<br />
|SpeedBackStockRB = 24<br />
|TurnTimeStockRB = 29.02<br />
|TurnSpeedStockRB = 50.04<br />
<br />
|TurnTimeSpadedRB = 23.83<br />
|TurnSpeedSpadedRB = 40.03<br />
}}<br />
<br />
Dark class (FPB 1102) has a displacement of 64 tons. <br />
<br />
=== Modifications and economy ===<br />
{{Specs-Economy}}<br />
<br />
The recommended modification research order is:<br />
<br />
* Tool Set<br />
* Fire Protection System<br />
* 40 mm HE clips<br />
* 40 mm AP clips<br />
* Propeller Replacement<br />
* Primary Aramment Targeting<br />
* Artillery Support<br />
<br />
After that, prioritize the rest of the seakeeping modifications first, then finish researching the remaining modifications in whatever order you prefer.<br />
<br />
== Armament ==<br />
{{Specs-Fleet-Armaments}}<br />
=== Primary armament ===<br />
{{Specs-Fleet-Primary}}<br />
<!-- ''Provide information about the characteristics of the primary armament. Evaluate their efficacy in battle based on their reload speed, ballistics and the capacity of their shells. Add a link to the main article about the weapon: <code><nowiki>{{main|Weapon name (calibre)}}</nowiki></code>. Broadly describe the ammunition available for the primary armament, and provide recommendations on how to use it and which ammunition to choose.'' --><br />
{{main|QF Mark VII (40 mm)}}<br />
<br />
The primary armament consists of a single 40 mm QF Mk VII cannon mounted forward with a maximum ammunition load of 1500 rounds. Stock, the mount can traverse horizontally at a rate of 34°/s and vertically at a rate of 29°/s; with the "Primary Armament Targeting" modification installed, this is increased to 40°/s and 34°/s respectively. The gun has a magazine capacity of 4 rounds and a cycle rate of fire of 160 rounds/min. With a stock crew, it can be reloaded in 0.49 seconds; with an aced crew, this is decreased to 0.38 seconds. The reload is short enough that there is a seamless transition between magazines, although continuously firing for too long will cause the gun to overheat and jam. This happens after continuously firing for about 1.25 min, or about 200 rounds. There is no noticeable drop in accuracy as the gun overheats.<br />
<br />
{| class="wikitable" style="text-align:center" width="25%"<br />
! colspan="2" | Primary armament guidance<br />
|-<br />
! Horizontal !! Vertical<br />
|-<br />
| ±180° || -10°/+89°<br />
|-<br />
|}<br />
<br />
There are three ammunition types available:<br />
<br />
* Universal: {{Annotation|AP-T|Armour-piercing tracer}}{{-}}{{Annotation|HEFI-T|High-explosive fragmentary incendiary tracer}}<br />
* 40 mm HE clips: {{Annotation|HEFI-T|High-explosive fragmentary incendiary tracer}}{{-}}{{Annotation|HEFI-T|High-explosive fragmentary incendiary tracer}}{{-}}{{Annotation|HEFI-T|High-explosive fragmentary incendiary tracer}}{{-}}{{Annotation|AP-T|Armour-piercing tracer}}<br />
* 40 mm AP clips: {{Annotation|AP-T|Armour-piercing tracer}}{{-}}{{Annotation|AP-T|Armour-piercing tracer}}{{-}}{{Annotation|AP-T|Armour-piercing tracer}}{{-}}{{Annotation|HEFI-T|High-explosive fragmentary incendiary tracer}}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="7" | Penetration statistics<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| Universal || 80 || 77 || 66 || 57 || 50 || 45<br />
|-<br />
| 40 mm HE clips || 80 || 77 || 66 || 57 || 50 || 45<br />
|-<br />
| 40 mm AP clips || 80 || 77 || 66 || 57 || 50 || 45<br />
|-<br />
|}<br />
<br />
The best ammunition is the 40 mm HE clips because it has the highest ratio of HE rounds to AP rounds. Take mostly 40 mm HE clips along with several 40 mm AP clips for armoured targets. Because of the gun's seamless reload, there is no reason to use the Universal belt once the others are unlocked. <br />
<br />
=== Additional armament ===<br />
{{Specs-Fleet-Additional}}<br />
<!-- ''Describe the available additional armaments of the ship: depth charges, mines, torpedoes. Talk about their positions, available ammunition and launch features such as dead zones of torpedoes. If there is no additional armament, remove this section.'' --><br />
{{main|Mk.VIII (533 mm)|Mk.VII depth charge}}<br />
<br />
Dark class (FPB 1102) has two possible loadouts:<br />
<br />
# 4x Mk.VIII torpedo<br />
# 2x Mk.VII depth charge<br />
# 4x Mk.VIII torpedo; 2x Mk.VII depth charge<br />
# Without load<br />
<br />
'''Torpedoes'''<br />
<br />
Dark class (FPB 1102) can carry four 533 mm Mk.VIII torpedoes. The torpedo tubes are located on either side of the bridge, pointing forwards with the nose angled outwards. <br />
<br />
{| class="wikitable" style="text-align:center" width="100%"<br />
! colspan="9" | Torpedo characteristics<br />
|-<br />
! Torpedo Mode !! Mass (kg) !! Maximum speed in water (km/h) !! Travel distance (km) !! Depth stroke (m) !! Arming distance (m) !! Explosive type !! Explosive mass (kg) !! TNT equivalent (kg)<br />
|-<br />
| {{Annotation|No|'Torpedo Mode' modification uninstalled}} || 1,566 || 84 || 4.57 || 1 || 50 || TNT || 327 || 327<br />
|-<br />
| {{Annotation|Yes|'Torpedo Mode' modification installed}} || 1,566 || 76 || 6.40 || 1 || 50 || TNT || 327 || 327<br />
|}<br />
<br />
The Torpedo Mode modification is available as a rank IV modification. Installing it will give the following changes:<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="2" | Torpedo mode specification changes<br />
|-<br />
! Max Distance (m)<br />
! Max Speed (m/s)<br />
|-<br />
| +1,830 || -2<br />
|-<br />
|}<br />
<br />
It's best to always keep Torpedo Mode uninstalled. The maximum speed of a torpedo is much more valuable in coastal battles than its maximum range. Coastal fleet maps are also small enough that the decreased range with Torpedo Mode installed isn't much of an issue.<br />
<br />
In RB, always set the depth stroke to the minimum 1 m setting. This is because many vessels that Dark class (FPB 1102) can face will not have a deep enough draught to fuse the torpedo at a depth stroke setting of 4 m. In AB, depth stroke is automatically set to the most optimal setting.<br />
<br />
When using torpedoes, be aware that unless they are already launched, the torpedoes have a very high chance to detonate when shot at, instantly destroying the boat. To avoid this, fire the torpedoes immediately after spawning in—as well as after any subsequent reloads in AB—or simply don't take them at all. Torpedoes are a situational weapon, so it's largely down to personal preference whether or not to take them.<br />
<br />
'''Depth charges'''<br />
<br />
[[File:{{PAGENAME}}_DC_Order.png|thumb|Mk.VII depth charges numbered according to their drop order (click to view a larger image).]]<br />
<br />
The Mk.VII depth charges are carried on the stern, one on each side. They are dropped one at a time in the following order:<br />
<br />
# Starboard<br />
# Port<br />
<br />
Before spawning, the detonation time delay can be set anywhere between 3 seconds and 10 seconds.<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="7" | Depth charge characteristics<br />
|-<br />
! Mass (kg)<br />
! Explosive type<br />
! Explosive mass (kg)<br />
! TNT equivalent (kg)<br />
! HE armour penetration (mm)<br />
! Armoured vehicle destruction radius (m)<br />
! Fragment dispersion radius (m)<br />
|-<br />
| 196 || TNT || 130 || 130 || 101 || 8 || 122 <br />
|}<br />
<br />
There is almost no practical reason to use depth charges on any naval vessel in the game. Although they usually result in a one-hit kill if used properly, they are extremely situational, requiring the player to close to point-blank ranges to even use them. In almost every case, anytime a depth charge could be used, the guns or torpedoes can be used instead to greater effect. In fact, depth charges tend to actually be a liability in battle, since they essentially act as exposed ammo racks before they're dropped. Like torpedoes, they can be shot at, and if destroyed, they have a chance to detonate, instantly destroying the boat.<br />
<br />
Despite this, some success can be had in dropping them either next to, or in front of a large, slow target. If dropping them next to the target, remember the depth charge drop order, since it's most likely that only the depth charges dropped on the side closest to the enemy will deal any damage. If dropping in front of the target, rush in from the sides as quickly as possible and drop them all at once directly in front of the target. For both cases, set the depth charge time delay to the minimum 3 seconds, since any higher time delay will only allow the depth charge to sink further away from the target, giving them more time to move out of the way. Again, using depth charges is extremely situational, and they will only be a liability the vast majority of the time, so take them at your own discretion.<br />
<br />
== Usage in battles ==<br />
<!-- ''Describe the technique of using this ship, the characteristics of her use in a team and tips on strategy. Abstain from writing an entire guide – don't try to provide a single point of view, but give the reader food for thought. Talk about the most dangerous opponents for this vehicle and provide recommendations on fighting them. If necessary, note the specifics of playing with this vehicle in various modes (AB, RB, SB).'' --><br />
<br />
=== Pros and cons ===<br />
<!-- ''Summarise and briefly evaluate the vehicle in terms of its characteristics and combat effectiveness. Mark its pros and cons in the bulleted list. Try not to use more than 6 points for each of the characteristics. Avoid using categorical definitions such as "bad", "good" and the like - use substitutions with softer forms such as "inadequate" and "effective".'' --><br />
<br />
'''Pros:'''<br />
<br />
* Primary armament: very good damage output, high armour penetration, seamless reload<br />
<br />
'''Cons:'''<br />
<br />
* Main armament is easily knocked out<br />
* No secondary or anti-aircraft armament<br />
<br />
== History ==<br />
<!-- ''Describe the history of the creation and combat usage of the ship in more detail than in the introduction. If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the ship and adding a block "/History" (example: <nowiki>https://wiki.warthunder.com/(Ship-name)/History</nowiki>) and add a link to it here using the <code>main</code> template. Be sure to reference text and sources by using <code><nowiki><ref></ref></nowiki></code>, as well as adding them at the end of the article with <code><nowiki><references /></nowiki></code>. This section may also include the ship's dev blog entry (if applicable) and the in-game encyclopedia description (under <code><nowiki>=== In-game description ===</nowiki></code>, also if applicable).'' --><br />
<br />
The Dark class fast patrol boats, also known as the Admiralty Type "A" Fast Patrol Boat (FPB), were 18 patrol boats used by the Royal Navy, with another 8 built for export. The class was originally ordered in the late 1940s, calling for a new diesel-powered FPB, with Saunders-Roe eventually winning the design contract in early 1952. The Dark class was built between 1954 and 1958 primarily by Saunders-Roe alongside several other British shipbuilding companies. The Dark class had interchangeable armaments and could be configured as motor torpedo boats, as motor gun boats, or as minelayers. These armaments include:<br />
<br />
* 4x 21-inch torpedoes<br />
* 1x 40 mm Bofors gun (forward), 2x 21-inch torpedoes<br />
* 1x 40 mm Bofors gun (aft), 1x 4.5-inch cannon (forward)<br />
* 16x mines<br />
<br />
The Dark class boats had a length of 71 ft. 8 in., a beam of 19 ft. 5 in., a draught of 6 ft. 1 in, and a standard displacement of 50 long tons and were the first of their kind in Royal Navy service to use diesel engines. Each boat was powered by two 18 cylinder Napier Deltic diesel engines, each producing 2,500 bhp and driving a single shaft, with an exhaust port on the port side hull. The first few Dark class boats were painted entirely in standard grey. However, the port side of the hulls would quickly become stained by the diesel exhaust fumes, even after only a short period of use. Initially, an experimental paint scheme was tried on HMS Dark Biter (P1104) around March 1956 that had the rear hull painted in black with the front hull still in grey. This, too, was found to be unsatisfactory, and eventually, it was decided that the entire hull of the Dark class boats was to be painted in black.<br />
<br />
Eighteen Dark class boats served with the Royal Navy. All of these were built with wooden hulls and aluminium decks on aluminium hull frames with the exception of the final boat, the unique HMS Dark Scout (P1116), which had an all-aluminium welded construction, a redesigned bridge, and transom exhaust ports. In addition to these, eight more Dark class boats were also built for export, all built by Saunders-Roe: two standard boats to Finland; five riveted, all-aluminium boats with an additional electric drive system to Burma; and one standard boat to Japan. A further nine Dark class boats were planned to be built as well for Royal Navy service, but these were all cancelled in 1955. During the 1960s and 1970s, of the 18 Dark class boats in Royal Navy service, two were used as target practice with one being sunk. The surviving 17 were sold to various places, including several to Italian law enforcement in the late 1960s.<br />
<br />
HMS Dark Adventurer, pennant number P1101, was the first of the Dark-class boats. She was built by Saunders-Roe in Beaumaris and was completed on 28th October 1954. She was sold in early 1970.<br />
<br />
== Media ==<br />
<!-- ''Excellent additions to the article would be video guides, screenshots from the game, and photos.'' --><br />
<br />
;'''Skins'''<br />
* [https://live.warthunder.com/feed/camouflages/?vehicleCountry=britain&vehicleType=ship&vehicleClass=torpedo_boat&vehicle=uk_dark_class_mtb Skins and camouflages for the {{PAGENAME}} from live.warthunder.com.]<br />
<br />
;Images<br />
<gallery mode="packed" heights="200"><br />
File:Events_Festive2019_Wallpaper.jpg|{{PAGENAME}} wallpaper, from [[wt:en/news/6547-event-festive-events-en|[Event] Festive events!]].<br />
</gallery><br />
<br />
== See also ==<br />
<!-- ''Links to articles on the War Thunder Wiki that you think will be useful for the reader, for example:''<br />
* ''reference to the series of the ship;''<br />
* ''links to approximate analogues of other nations and research trees.'' --><br />
<br />
* {{Specs-Link|uk_dark_class}}<br />
* {{Specs-Link|uk_brave_borderer}}<br />
<br />
== External links ==<br />
<!-- ''Paste links to sources and external resources, such as:''<br />
* ''topic on the official game forum;''<br />
* ''encyclopedia page on the ship;''<br />
* ''other literature.'' --><br />
<br />
* [https://cfv.org.uk/forum/viewtopic.php?t=215 <nowiki>[Coastal Forces Veterans Forum]</nowiki> The British "Dark" Class]<br />
* [http://cfv.org.uk/research/boat/database <nowiki>[Coastal Forces Veterans]</nowiki> Boat Database]<br />
* [http://www.bmpt.org.uk/boat%20histories/Dark%20Class/index.htm <nowiki>[British Military Powerboat Team]</nowiki> Dark Class Boats]<br />
* [http://dave-mills.yolasite.com/saro-dark-class-mtbs.php <nowiki>[mprints.co.uk]</nowiki> SARO Dark Class MTBs]<br />
* [http://cfv.org.uk/research/boat/database <nowiki>[Coastal Forces Veterans]</nowiki> Boat Database]<br />
<br />
{{Britain boats}}</div>U27474208https://old-wiki.warthunder.com/index.php?title=Dark_Adventurer&diff=102453Dark Adventurer2021-05-09T18:11:40Z<p>U27474208: Minor grammar; converted external links to standard format</p>
<hr />
<div>{{Specs-Card<br />
|code=uk_dark_class<br />
|images={{Specs-Card-Image|GarageImage_{{PAGENAME}}.jpg}}<br />
}}<br />
<br />
== Description ==<br />
<!-- ''In the first part of the description, cover the history of the ship's creation and military application. In the second part, tell the reader about using this ship in the game. Add a screenshot: if a beginner player has a hard time remembering vehicles by name, a picture will help them identify the ship in question.'' --><br />
The '''{{Specs|name}}''' is a rank {{Specs|rank}} British motor gun boat {{Battle-rating}}. It was introduced in [[Update 1.83 "Masters of the Sea"]] as part of the British fleet closed beta test. With the split of the naval tech trees in [[Update "New Power"]], {{PAGENAME}} was moved to the coastal fleet tech tree.<br />
<br />
== General info ==<br />
=== Survivability and armour ===<br />
{{Specs-Fleet-Armour}}<br />
<!-- ''Talk about the vehicle's armour. Note the most well-defended and most vulnerable zones, e.g. the ammo magazine. Evaluate the composition of components and assemblies responsible for movement and manoeuvrability. Evaluate the survivability of the primary and secondary armaments separately. Don't forget to mention the size of the crew, which plays an important role in fleet mechanics. Save tips on preserving survivability for the "Usage in battles" section. If necessary, use a graphical template to show the most well-protected or most vulnerable points in the armour.'' --><br />
<br />
Dark class (FPB 1101) has the following armour layout:<br />
<br />
* [[8cwt QF Mk I (114 mm)|114 mm 8cwt QF Mk I]] gunshield: 12.7 mm, hardened armour<br />
* Hull: 40 mm, wood<br />
* Superstructure: 15 mm, wood<br />
<br />
[[File:{{PAGENAME}}_internals.png|thumb|Dark class (FPB 1101) internals (starboard side). Note the ammo racks below the forward gun.]]<br />
<br />
Like most coastal vessels, Dark class (FPB 1101) has no practical armor. The gunshield is largely superficial, so while it may stop low-calibre machine guns, heavy machine guns and cannons will easily penetrate it at any range. The hull and superstructure are unarmoured and will not stop any sort of gunfire. <br />
<br />
The hull is split into four hull sections. Starting from the bow and working towards the stern, the first section starts at the bow and ends just in front of forward gun; the second ends just after the bridge; the third ends where the fuel tanks end, just in front of the engines; and the fourth ends at the stern. Dark class (FPB 1101) can be hull-broken by any round with a large enough diameter and explosive mass. In general, this is limited to HE rounds greater with a diameter greater than or equal to 4 inches (102 mm) and with an explosive mass greater than 1.5 kg. At Dark class (FPB 1101)'s battle rating, the only guns capable of hull-breaking her are:<br />
<br />
* the [[10.5 cm SK C/32 (105 mm)|10.5 cm SK C/32]], found on {{Specs-Link|germ_escort_typem1943}}; and<br />
* the [[8cwt QF Mk I (114 mm)|114 mm 8cwt QF Mk I]], found on Dark class (FPB 1101) herself.<br />
<br />
There is one ammunition storage that holds ammunition for both the primary and secondary gun turrets. It is located directly behind the forward gun turret just above the waterline. Destroying it will instantly destroy the boat. <br />
<br />
Dark class (FPB 1101) has a crew complement of 15. With a stock crew, Dark class (FPB 1101) is knocked out when 10 crew are lost; with an aced crew, this is increased to 11. Overall, the survivability is average. <br />
<br />
=== Mobility ===<br />
{{Specs-Fleet-Mobility}}<br />
<!-- ''Write about the ship's mobility. Evaluate its power and manoeuvrability, rudder rerouting speed, stopping speed at full tilt, with its maximum forward and reverse speed.'' --><br />
<br />
{{NavalMobility<br />
|SpeedForwardStockAB = 73<br />
|SpeedBackStockAB = 27<br />
|TurnTimeStockAB = 26.46<br />
|TurnSpeedStockAB = 45.62<br />
<br />
|TurnTimeSpadedAB = 17.53<br />
|TurnSpeedSpadedAB = 28.67<br />
<br />
|SpeedForwardStockRB = 64<br />
|SpeedBackStockRB = 24<br />
|TurnTimeStockRB = 29.42<br />
|TurnSpeedStockRB = 52.03<br />
<br />
|TurnTimeSpadedRB = 23.53<br />
|TurnSpeedSpadedRB = 40.57<br />
}}<br />
<br />
Dark class (FPB 1101) has a displacement of 64 tons. <br />
<br />
=== Modifications and economy ===<br />
{{Specs-Economy}}<br />
<br />
The recommended modification research order is:<br />
<br />
* Tool Set<br />
* Fire Protection System<br />
* 40 mm HE clips<br />
* 40 mm AP clips<br />
* Smokescreen<br />
* Propeller Replacement<br />
* Improved Rangefinder<br />
* Artillery Support<br />
<br />
After that, prioritize the rest of the seakeeping modifications first, then finish researching the remaining modifications in whatever order you prefer.<br />
<br />
== Armament ==<br />
{{Specs-Fleet-Armaments}}<br />
=== Primary armament ===<br />
{{Specs-Fleet-Primary}}<br />
<!-- ''Provide information about the characteristics of the primary armament. Evaluate their efficacy in battle based on their reload speed, ballistics and the capacity of their shells. Add a link to the main article about the weapon: <code><nowiki>{{main|Weapon name (calibre)}}</nowiki></code>. Broadly describe the ammunition available for the primary armament, and provide recommendations on how to use it and which ammunition to choose.'' --><br />
{{main|8cwt QF Mk I (114 mm)}}<br />
<br />
The primary armament consists of a single 114 mm 8cwt QF Mk I cannon mounted forwards, with a maximum ammunition load of 100 rounds. Stock, the mount can traverse horizontally at a rate of 26°/s and vertically at a rate of 21°/s; with the "Primary Armament Targeting" modification installed, this is increased to 30°/s and 25°/s respectively. The gun is single-shot with a nominal rate of fire of 12 rounds/min. With a stock crew, it can be reloaded in 6.5 seconds; with an aced crew, this is decreased to 5 seconds.<br />
<br />
{| class="wikitable" style="text-align:center" width="25%"<br />
! colspan="2" | Primary armament guidance<br />
|-<br />
! Horizontal !! Vertical<br />
|-<br />
| ±180° || -8°/+12°<br />
|-<br />
|}<br />
<br />
There is only one ammunition type available:<br />
<br />
* 114 mm HE<br />
<br />
{| class="wikitable" style="text-align:center" width="100%"<br />
! colspan="8" | Penetration statistics<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! rowspan="2" | Type of warhead<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 1,000 m !! 2,500 !! 5,000 m !! 7,500 m !! 10,000 m !! 15,000 m<br />
|-<br />
| 114 mm HE || {{Annotation|HE base fuze|High-Explosive with base fuze}} || 34 || 34 || 34 || 34 || 34 || 34<br />
|-<br />
|}<br />
<br />
{| class="wikitable" style="text-align:center" width="100%"<br />
! colspan="10" | Shell details<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! rowspan="2" | Type of warhead<br />
! rowspan="2" | Velocity (m/s)<br />
! rowspan="2" | Projectile mass (kg)<br />
! rowspan="2" | Fuse delay (m)<br />
! rowspan="2" | Fuse sensitivity (mm)<br />
! rowspan="2" | Explosive mass<br>(TNT equivalent) (kg)<br />
! colspan="3" | Ricochet<br />
|-<br />
! 0% !! 50% !! 100%<br />
|-<br />
| 114 mm HE || {{Annotation|HE base fuze|High-Explosive with base fuze}} || 457|| 6.66 || 0 || 0.1 || 2.9 || 79° || 80° || 81°<br />
|-<br />
|}<br />
<br />
The 114 mm HE round is able to hull-break.<br />
<br />
=== Secondary armament ===<br />
{{Specs-Fleet-Secondary}}<br />
<!-- ''Some ships are fitted with weapons of various calibres. Secondary armaments are defined as weapons chosen with the control <code>Select secondary weapon</code>. Evaluate the secondary armaments and give advice on how to use them. Describe the ammunition available for the secondary armament. Provide recommendations on how to use them and which ammunition to choose. Remember that any anti-air armament, even heavy calibre weapons, belong in the next section. If there is no secondary armament, remove this section.'' --><br />
{{main|QF Mark VII (40 mm)}}<br />
<br />
The secondary armament consists of a single 40 mm QF Mk VII cannon mounted aft with a maximum ammunition load of 1500 rounds. Stock, the mount can traverse horizontally at a rate of 34°/s and vertically at a rate of 29°/s; with the "Auxiliary Armament Targeting" modification installed, this is increased to 40°/s and 34°/s respectively. The gun has a magazine capacity of 4 rounds and a cycle rate of fire of 160 rounds/min. With a stock crew, it can be reloaded in 0.49 seconds; with an aced crew, this is decreased to 0.38 seconds. The reload is short enough that there is a seamless transition between magazines, although continuously firing for too long will cause the gun to overheat and jam. This happens after continuously firing for about 1.25 min, or about 200 rounds. There is no noticeable drop in accuracy as the gun overheats.<br />
<br />
{| class="wikitable" style="text-align:center" width="25%"<br />
! colspan="2" | Secondary armament guidance<br />
|-<br />
! Horizontal !! Vertical<br />
|-<br />
| ±180° || -10°/+89°<br />
|-<br />
|}<br />
<br />
There are three ammunition types available:<br />
<br />
* Universal: {{Annotation|AP-T|Armour-piercing tracer}}{{-}}{{Annotation|HEFI-T|High-explosive fragmentary incendiary tracer}}<br />
* 40 mm HE clips: {{Annotation|HEFI-T|High-explosive fragmentary incendiary tracer}}{{-}}{{Annotation|HEFI-T|High-explosive fragmentary incendiary tracer}}{{-}}{{Annotation|HEFI-T|High-explosive fragmentary incendiary tracer}}{{-}}{{Annotation|AP-T|Armour-piercing tracer}}<br />
* 40 mm AP clips: {{Annotation|AP-T|Armour-piercing tracer}}{{-}}{{Annotation|AP-T|Armour-piercing tracer}}{{-}}{{Annotation|AP-T|Armour-piercing tracer}}{{-}}{{Annotation|HEFI-T|High-explosive fragmentary incendiary tracer}}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="7" | Penetration statistics<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| Universal || 80 || 77 || 66 || 57 || 50 || 45<br />
|-<br />
| 40 mm HE clips || 80 || 77 || 66 || 57 || 50 || 45<br />
|-<br />
| 40 mm AP clips || 80 || 77 || 66 || 57 || 50 || 45<br />
|-<br />
|}<br />
<br />
The best ammunition is the 40 mm HE clips because it has the highest ratio of HE rounds to AP rounds. Take mostly 40 mm HE clips along with several 40 mm AP clips for armoured targets. Because of the gun's seamless reload, there is no reason to use the Universal belt once the others are unlocked. <br />
<br />
=== Additional armament ===<br />
{{Specs-Fleet-Additional}}<br />
<!-- ''Describe the available additional armaments of the ship: depth charges, mines, torpedoes. Talk about their positions, available ammunition and launch features such as dead zones of torpedoes. If there is no additional armament, remove this section.'' --><br />
{{main|Mk.VII depth charge}}<br />
<br />
Dark class (FPB 1101) has two possible loadouts:<br />
<br />
# Without load<br />
# 2x Mk.VII depth charge<br />
<br />
'''Depth charges'''<br />
<br />
[[File:{{PAGENAME}}_DC_Order.png|thumb|Mk.VII depth charges numbered according to their drop order (click to view a larger image).]]<br />
<br />
The Mk.VII depth charges are carried amidships in front of the aft gun, one on each side. They are dropped one at a time in the following order:<br />
<br />
# Starboard<br />
# Port<br />
<br />
Before spawning, the detonation time delay can be set anywhere between 3 seconds and 10 seconds.<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="7" | Depth charge characteristics<br />
|-<br />
! Mass (kg)<br />
! Explosive type<br />
! Explosive mass (kg)<br />
! TNT equivalent (kg)<br />
! HE armour penetration (mm)<br />
! Armoured vehicle destruction radius (m)<br />
! Fragment dispersion radius (m)<br />
|-<br />
| 196 || TNT || 130 || 130 || 101 || 8 || 122 <br />
|}<br />
<br />
There is almost no practical reason to use depth charges on any naval vessel in the game. Although they usually result in a one-hit kill if used properly, they are extremely situational, requiring the player to close to point-blank ranges to even use them. In almost every case, anytime a depth charge could be used, the guns can be used instead to greater effect. In fact, depth charges tend to actually be a liability in battle, since they essentially act as exposed ammo racks before they're dropped. They can be shot at, and if destroyed, they have a chance to detonate, instantly destroying the boat.<br />
<br />
Despite this, some success can be had in dropping them either next to, or in front of a large, slow target. If dropping them next to the target, remember the depth charge drop order, since it's most likely that only the depth charges dropped on the side closest to the enemy will deal any damage. If dropping in front of the target, rush in from the sides as quickly as possible and drop them all at once directly in front of the target. For both cases, set the depth charge time delay to the minimum 3 seconds, since any higher time delay will only allow the depth charge to sink further away from the target, giving them more time to move out of the way. Again, using depth charges is extremely situational, and they will only be a liability the vast majority of the time, so take them at your own discretion.<br />
<br />
== Usage in battles ==<br />
<!-- ''Describe the technique of using this ship, the characteristics of her use in a team and tips on strategy. Abstain from writing an entire guide – don't try to provide a single point of view, but give the reader food for thought. Talk about the most dangerous opponents for this vehicle and provide recommendations on fighting them. If necessary, note the specifics of playing with this vehicle in various modes (AB, RB, SB).'' --><br />
<br />
Dark class (FPB 1101)'s main armament, the 114 mm 8cwt QF Mk I, is one of the largest calibre coastal fleet weapons in the game and fires the single strongest HE round of any coastal vessel, allowing it to hull-break anything smaller than a sub-chaser. Guns that can hull-break are very rare in the coastal fleet, and Dark class (FPB 1101) is, by far, the lowest BR vessel equipped with one. However, against sub-chasers and other larger vessels, the damage is lackluster, often requiring multiple hits to destroy a single hull segment. Additionally, the terrible muzzle velocity and very poor ballistics make the gun difficult to use in practice, with it only really effective against stationary targets or at very close ranges, within 500 m at most, and while the muzzle velocity is bad, it isn't quite bad enough to allow the 8cwt QF Mk I to fire from behind cover. Because of this, and despite the one-shot potential, the 8cwt QF Mk I is simply outclassed by the secondary 40 mm QF Mark VII in the vast majority of situations.<br />
<br />
In battle, make the most of the QF Mark VII by switching to manual control with Alt+2. The best advantage of the QF Mark VII over many other coastal weapons is its seamless reload. Without having to worry about reloading, vessels equipped with these types of weapons can be played much more aggressively. However, on Dark class (FPB 1101), the gun is mounted aft, which limits its versatility by preventing it from firing forwards and increasing the time needed to traverse the gun from one side to the other. While being mounted aft does come with some benefits—mainly, it gets destroyed less often—this is an overall net disadvantage and limits Dark class (FPB 1101)'s effectiveness in comparison with vessels with forward-mounted guns, like {{Specs-Link|uk_dark_class_mtb}}.<br />
<br />
Because of this, try to not be the first to rush into action and avoid meeting enemies head-on as much as possible, since it takes some time to turn the hull to get the QF Mark VII on target. Instead, flank the enemy and try to get into ambush positions behind cover. Once in place, turn the hull around so that the stern is facing towards the enemy and use the QF Mark VII to make short work of anything that passes by, prioritizing armoured targets if possible. Dark class (FPB 1101) has a somewhat poor reaction time, so try not to stay in one place for too long to avoid being flanked yourself. Since the hull is already turned around, you can quickly retreat if necessary by using smoke and going forwards. In general, stick to close-range engagements on the flanks with the QF Mark VII, but don't be afraid to switch back to the 8cwt QF Mk I to one-shot tricky opponents either.<br />
<br />
While manually controlling the QF Mark VII, there are several things to keep in mind. First, while you don't have to worry about reloads, the QF Mark VII is one of the few weapons that can overheat, causing it to jam after continuously firing about 200 rounds. This is more than enough for multiple engagements, though, and the overheating doesn't have any noticeable negative effect on accuracy as is the case with some other guns. However, you should still pay attention to the overheating and occasionally retreat to let the gun cool off. The second thing to consider is what to do with the primary 8cwt QF Mk I. This gun is completely useless against aircraft, and under AI control, it is practically worthless against surface targets too. Because of this, it's best to just disable the AI gunners. This keeps the gun loaded, level, and forward-facing for when it's actually needed. This ties into the last thing to be aware of, which is that there will be no AI anti-aircraft defense while playing like this, so always look out for aircraft. The AI gunners are very inaccurate against aircraft unless the enemy is coming directly head-on, so don't bother giving control of the QF Mark VII back to the AI gunners; just try to shoot down enemy aircraft manually.<br />
<br />
=== Pros and cons ===<br />
<!-- ''Summarise and briefly evaluate the vehicle in terms of its characteristics and combat effectiveness. Mark its pros and cons in the bulleted list. Try not to use more than 6 points for each of the characteristics. Avoid using categorical definitions such as "bad", "good" and the like - use substitutions with softer forms such as "inadequate" and "effective".'' --><br />
<br />
'''Pros:'''<br />
<br />
* Primary armament can hull-break most opponents<br />
* Secondary armament: very good damage output, high armour penetration, seamless reload<br />
<br />
'''Cons:'''<br />
<br />
* Primary armament: very low muzzle velocity, low rate of fire, difficult to use<br />
* Secondary armament is mounted aft, cannot fire directly forwards<br />
<br />
== History ==<br />
<!-- ''Describe the history of the creation and combat usage of the ship in more detail than in the introduction. If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the ship and adding a block "/History" (example: <nowiki>https://wiki.warthunder.com/(Ship-name)/History</nowiki>) and add a link to it here using the <code>main</code> template. Be sure to reference text and sources by using <code><nowiki><ref></ref></nowiki></code>, as well as adding them at the end of the article with <code><nowiki><references /></nowiki></code>. This section may also include the ship's dev blog entry (if applicable) and the in-game encyclopedia description (under <code><nowiki>=== In-game description ===</nowiki></code>, also if applicable).'' --><br />
<br />
The Dark class fast patrol boats, also known as the Admiralty Type "A" Fast Patrol Boat (FPB), were 18 patrol boats used by the Royal Navy, with another 8 built for export. The class was originally ordered in the late 1940s, calling for a new diesel-powered FPB, with Saunders-Roe eventually winning the design contract in early 1952. The Dark class was built between 1954 and 1958 primarily by Saunders-Roe alongside several other British shipbuilding companies. The Dark class had interchangeable armaments and could be configured as motor torpedo boats, as motor gun boats, or as minelayers. These armaments include:<br />
<br />
* 4x 21-inch torpedoes<br />
* 1x 40 mm Bofors gun (forward), 2x 21-inch torpedoes<br />
* 1x 40 mm Bofors gun (aft), 1x 4.5-inch cannon (forward)<br />
* 16x mines<br />
<br />
The Dark class boats had a length of 71 ft. 8 in., a beam of 19 ft. 5 in., a draught of 6 ft. 1 in, and a standard displacement of 50 long tons and were the first of their kind in Royal Navy service to use diesel engines. Each boat was powered by two 18 cylinder Napier Deltic diesel engines, each producing 2,500 bhp and driving a single shaft, with an exhaust port on the port side hull. The first few Dark class boats were painted entirely in standard grey. However, the port side of the hulls would quickly become stained by the diesel exhaust fumes, even after only a short period of use. Initially, an experimental paint scheme was tried on HMS Dark Biter (P1104) around March 1956 that had the rear hull painted in black with the front hull still in grey. This, too, was found to be unsatisfactory, and eventually, it was decided that the entire hull of the Dark class boats was to be painted in black.<br />
<br />
Eighteen Dark class boats served with the Royal Navy. All of these were built with wooden hulls and aluminium decks on aluminium hull frames with the exception of the final boat, the unique HMS Dark Scout (P1116), which had an all-aluminium welded construction, a redesigned bridge, and transom exhaust ports. In addition to these, eight more Dark class boats were also built for export, all built by Saunders-Roe: two standard boats to Finland; five riveted, all-aluminium boats with an additional electric drive system to Burma; and one standard boat to Japan. A further nine Dark class boats were planned to be built as well for Royal Navy service, but these were all cancelled in 1955. During the 1960s and 1970s, of the 18 Dark class boats in Royal Navy service, two were used as target practice with one being sunk. The surviving 17 were sold to various places, including several to Italian law enforcement in the late 1960s.<br />
<br />
HMS Dark Adventurer, pennant number P1101, was the first of the Dark-class boats. She was built by Saunders-Roe in Beaumaris and was completed on 28th October 1954. She was sold in early 1970.<br />
<br />
== Media ==<br />
;'''Skins'''<br />
<br />
* [https://live.warthunder.com/feed/camouflages/?vehicleCountry=britain&vehicleType=ship&vehicleClass=gun_boat&vehicle=uk_dark_class Skins and camouflages for the {{PAGENAME}} from live.warthunder.com.]<br />
<br />
;Images<br />
<gallery mode="packed" heights="200"><br />
File:Dark_class_Newsflash_from_Igromir_2016_001.jpg<br />
File:Dark_class_Newsflash_from_Igromir_2016_002.jpg<br />
</gallery><br />
<br />
;Videos<br />
{{Youtube-gallery|LW_BVvR7CIg|'''The Shooting Range #122''' - ''War Machines'' section at 00:32 discusses the Dark class (FPB 1101).}}<br />
<br />
== See also ==<br />
<!-- ''Links to articles on the War Thunder Wiki that you think will be useful for the reader, for example:''<br />
* ''reference to the series of the ship;''<br />
* ''links to approximate analogues of other nations and research trees.'' --><br />
<br />
* {{Specs-Link|uk_dark_class_mtb}}<br />
* {{Specs-Link|uk_brave_borderer}}<br />
<br />
== External links ==<br />
<!-- ''Paste links to sources and external resources, such as:''<br />
* ''topic on the official game forum;''<br />
* ''encyclopedia page on the ship;''<br />
* ''other literature.'' --><br />
<br />
* [[wt:en/news/4272-development-newsflash-from-igromir-2016-new-ships-and-first-look-at-japanese-ground-forces-en|[Development] Newsflash from IgroMir 2016! New ships and first look at Japanese Ground Forces!]]<br />
* [https://cfv.org.uk/forum/viewtopic.php?t=215 <nowiki>[Coastal Forces Veterans Forum]</nowiki> The British "Dark" Class]<br />
* [http://cfv.org.uk/research/boat/database <nowiki>[Coastal Forces Veterans]</nowiki> Boat Database]<br />
* [http://www.bmpt.org.uk/boat%20histories/Dark%20Class/index.htm <nowiki>[British Military Powerboat Team]</nowiki> Dark Class Boats]<br />
* [http://dave-mills.yolasite.com/saro-dark-class-mtbs.php <nowiki>[mprints.co.uk]</nowiki> SARO Dark Class MTBs]<br />
* [http://cfv.org.uk/research/boat/database <nowiki>[Coastal Forces Veterans]</nowiki> Boat Database]<br />
<br />
{{Britain boats}}</div>U27474208https://old-wiki.warthunder.com/index.php?title=File:Dark_Aggressor_DC_Order.png&diff=102451File:Dark Aggressor DC Order.png2021-05-09T17:53:34Z<p>U27474208: Category:In-game screenshots</p>
<hr />
<div>[[Category:In-game screenshots]]</div>U27474208https://old-wiki.warthunder.com/index.php?title=File:Dark_Adventurer_internals.png&diff=102446File:Dark Adventurer internals.png2021-05-09T17:16:19Z<p>U27474208: U27474208 uploaded a new version of File:Dark class (FPB 1101) internals.png</p>
<hr />
<div>Dark Class, Dark Adventurer (FPB 1101) internals, starboard side<br />
<br />
[[Category:In-game screenshots]]</div>U27474208https://old-wiki.warthunder.com/index.php?title=File:Dark_Aggressor_internals.png&diff=102445File:Dark Aggressor internals.png2021-05-09T17:15:54Z<p>U27474208: Dark Class, Dark Aggressor (FPB 1102) internals, starboard side
Category:In-game screenshots</p>
<hr />
<div>Dark Class, Dark Aggressor (FPB 1102) internals, starboard side <br />
[[Category:In-game screenshots]]</div>U27474208https://old-wiki.warthunder.com/index.php?title=Dark_Adventurer&diff=102442Dark Adventurer2021-05-09T15:53:14Z<p>U27474208: Complete rewrite of Usage in battle</p>
<hr />
<div>{{Specs-Card<br />
|code=uk_dark_class<br />
|images={{Specs-Card-Image|GarageImage_{{PAGENAME}}.jpg}}<br />
}}<br />
<br />
== Description ==<br />
<!-- ''In the first part of the description, cover the history of the ship's creation and military application. In the second part, tell the reader about using this ship in the game. Add a screenshot: if a beginner player has a hard time remembering vehicles by name, a picture will help them identify the ship in question.'' --><br />
The '''{{Specs|name}}''' is a rank {{Specs|rank}} British motor gun boat {{Battle-rating}}. It was introduced in [[Update 1.83 "Masters of the Sea"]] as part of the British fleet closed beta test. With the split of the naval tech trees in [[Update "New Power"]], {{PAGENAME}} was moved to the coastal fleet tech tree.<br />
<br />
== General info ==<br />
=== Survivability and armour ===<br />
{{Specs-Fleet-Armour}}<br />
<!-- ''Talk about the vehicle's armour. Note the most well-defended and most vulnerable zones, e.g. the ammo magazine. Evaluate the composition of components and assemblies responsible for movement and manoeuvrability. Evaluate the survivability of the primary and secondary armaments separately. Don't forget to mention the size of the crew, which plays an important role in fleet mechanics. Save tips on preserving survivability for the "Usage in battles" section. If necessary, use a graphical template to show the most well-protected or most vulnerable points in the armour.'' --><br />
<br />
Dark class (FPB 1101) has the following armour layout:<br />
<br />
* [[8cwt QF Mk I (114 mm)|114 mm 8cwt QF Mk I]] gunshield: 12.7 mm, hardened armour<br />
* Hull: 40 mm, wood<br />
* Superstructure: 15 mm, wood<br />
<br />
[[File:Dark_class_(FPB_1101)_internals.png|thumb|Dark Class, Dark Adventurer (FPB 1101) internals (starboard side). Note the ammo racks below the forward gun.]]<br />
<br />
Like most coastal vessels, Dark class (FPB 1101) has no practical armor. The gunshield is largely superficial, so while it may stop low-calibre machine guns, heavy machine guns and cannons will easily penetrate it at any range. The hull and superstructure are unarmoured and will not stop any sort of gunfire. <br />
<br />
The hull is split into four hull sections. Starting from the bow and working towards the stern, the first section starts at the bow and ends just in front of forward gun; the second ends just after the bridge; the third ends where the fuel tanks end, just in front of the engines; and the fourth ends at the stern. Dark class (FPB 1101) can be hull-broken by any round with a large enough diameter and explosive mass. In general, this is limited to HE rounds greater with a diameter greater than or equal to 4 inches (102 mm) and with an explosive mass greater than 1.5 kg. At Dark class (FPB 1101)'s battle rating, the only guns capable of hull-breaking her are:<br />
<br />
* the [[10.5 cm SK C/32 (105 mm)|10.5 cm SK C/32]], found on the {{Specs-Link|germ_escort_typem1943}}, and<br />
* the [[8cwt QF Mk I (114 mm)|114 mm 8cwt QF Mk I]], found on Dark class (FPB 1101) herself.<br />
<br />
There is one ammunition storage that holds ammunition for both the primary and secondary gun turrets. It is located directly behind the forward gun turret just above the waterline. Destroying it will instantly destroy the boat. <br />
<br />
Dark class (FPB 1101) has a crew complement of 15. With a stock crew, Dark class (FPB 1101) is knocked out when 10 crew are lost; with an aced crew, this is increased to 11. Overall, the survivability is average. <br />
<br />
=== Mobility ===<br />
{{Specs-Fleet-Mobility}}<br />
<!-- ''Write about the ship's mobility. Evaluate its power and manoeuvrability, rudder rerouting speed, stopping speed at full tilt, with its maximum forward and reverse speed.'' --><br />
<br />
{{NavalMobility<br />
|SpeedForwardStockAB = 73<br />
|SpeedBackStockAB = 27<br />
|TurnTimeStockAB = 26.46<br />
|TurnSpeedStockAB = 45.62<br />
<br />
|TurnTimeSpadedAB = 17.53<br />
|TurnSpeedSpadedAB = 28.67<br />
<br />
|SpeedForwardStockRB = 64<br />
|SpeedBackStockRB = 24<br />
|TurnTimeStockRB = 29.42<br />
|TurnSpeedStockRB = 52.03<br />
<br />
|TurnTimeSpadedRB = 23.53<br />
|TurnSpeedSpadedRB = 40.57<br />
}}<br />
<br />
Dark class (FPB 1101) has a displacement of 64 tons. <br />
<br />
=== Modifications and economy ===<br />
{{Specs-Economy}}<br />
<br />
The recommended modification research order is:<br />
<br />
* Tool Set<br />
* Fire Protection System<br />
* 40 mm HE clips<br />
* 40 mm AP clips<br />
* Smokescreen<br />
* Propeller Replacement<br />
* Improved Rangefinder<br />
* Artillery Support<br />
<br />
After that, prioritize the rest of the seakeeping modifications first, then finish researching the remaining modifications in whatever order you prefer.<br />
<br />
== Armament ==<br />
{{Specs-Fleet-Armaments}}<br />
=== Primary armament ===<br />
{{Specs-Fleet-Primary}}<br />
<!-- ''Provide information about the characteristics of the primary armament. Evaluate their efficacy in battle based on their reload speed, ballistics and the capacity of their shells. Add a link to the main article about the weapon: <code><nowiki>{{main|Weapon name (calibre)}}</nowiki></code>. Broadly describe the ammunition available for the primary armament, and provide recommendations on how to use it and which ammunition to choose.'' --><br />
{{main|8cwt QF Mk I (114 mm)}}<br />
<br />
The primary armament consists of a single 114 mm 8cwt QF Mk I cannon mounted forwards, with a maximum ammunition load of 100 rounds. Stock, the mount can traverse horizontally at a rate of 26°/s and vertically at a rate of 21°/s; with the "Primary Armament Targeting" modification installed, this is increased to 30°/s and 25°/s respectively. The gun is single-shot with a nominal rate of fire of 12 rounds/min. With a stock crew, it can be reloaded in 6.5 seconds; with an aced crew, this is decreased to 5 seconds.<br />
<br />
{| class="wikitable" style="text-align:center" width="25%"<br />
! colspan="2" | Primary armament guidance<br />
|-<br />
! Horizontal !! Vertical<br />
|-<br />
| ±180° || -8°/+12°<br />
|-<br />
|}<br />
<br />
There is only one ammunition type available:<br />
<br />
* 114 mm HE<br />
<br />
{| class="wikitable" style="text-align:center" width="100%"<br />
! colspan="8" | Penetration statistics<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! rowspan="2" | Type of warhead<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 1,000 m !! 2,500 !! 5,000 m !! 7,500 m !! 10,000 m !! 15,000 m<br />
|-<br />
| 114 mm HE || {{Annotation|HE base fuze|High-Explosive with base fuze}} || 34 || 34 || 34 || 34 || 34 || 34<br />
|-<br />
|}<br />
<br />
{| class="wikitable" style="text-align:center" width="100%"<br />
! colspan="10" | Shell details<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! rowspan="2" | Type of warhead<br />
! rowspan="2" | Velocity (m/s)<br />
! rowspan="2" | Projectile mass (kg)<br />
! rowspan="2" | Fuse delay (m)<br />
! rowspan="2" | Fuse sensitivity (mm)<br />
! rowspan="2" | Explosive mass<br>(TNT equivalent) (kg)<br />
! colspan="3" | Ricochet<br />
|-<br />
! 0% !! 50% !! 100%<br />
|-<br />
| 114 mm HE || {{Annotation|HE base fuze|High-Explosive with base fuze}} || 457|| 6.66 || 0 || 0.1 || 2.9 || 79° || 80° || 81°<br />
|-<br />
|}<br />
<br />
The 114 mm HE round is able to hull-break.<br />
<br />
=== Secondary armament ===<br />
{{Specs-Fleet-Secondary}}<br />
<!-- ''Some ships are fitted with weapons of various calibres. Secondary armaments are defined as weapons chosen with the control <code>Select secondary weapon</code>. Evaluate the secondary armaments and give advice on how to use them. Describe the ammunition available for the secondary armament. Provide recommendations on how to use them and which ammunition to choose. Remember that any anti-air armament, even heavy calibre weapons, belong in the next section. If there is no secondary armament, remove this section.'' --><br />
{{main|QF Mark VII (40 mm)}}<br />
<br />
The secondary armament consists of a single 40 mm QF Mk VII cannon mounted aft, with a maximum ammunition load of 1500 rounds. Stock, the mount can traverse horizontally at a rate of 34°/s and vertically at a rate of 29°/s; with the "Auxiliary Armament Targeting" modification installed, this is increased to 40°/s and 34°/s respectively. The gun has a magazine capacity of 4 rounds and a cycle rate of fire of 160 rounds/min. With a stock crew, it can be reloaded in 0.49 seconds; with an aced crew, this is decreased to 0.38 seconds. The reload is short enough that there is a seamless transition between magazines, although continuously firing for too long will cause the gun to overheat and jam. This happens after continuously firing for about 1.25 min, or about 200 rounds. There is no noticeable drop in accuracy as the gun overheats.<br />
<br />
{| class="wikitable" style="text-align:center" width="25%"<br />
! colspan="2" | Secondary armament guidance<br />
|-<br />
! Horizontal !! Vertical<br />
|-<br />
| ±180° || -10°/+89°<br />
|-<br />
|}<br />
<br />
There are three ammunition choices available:<br />
<br />
* Universal: {{Annotation|AP-T|Armour-piercing tracer}}{{-}}{{Annotation|HEFI-T|High-explosive fragmentary incendiary tracer}}<br />
* 40 mm HE clips: {{Annotation|HEFI-T|High-explosive fragmentary incendiary tracer}}{{-}}{{Annotation|HEFI-T|High-explosive fragmentary incendiary tracer}}{{-}}{{Annotation|HEFI-T|High-explosive fragmentary incendiary tracer}}{{-}}{{Annotation|AP-T|Armour-piercing tracer}}<br />
* 40 mm AP clips: {{Annotation|AP-T|Armour-piercing tracer}}{{-}}{{Annotation|AP-T|Armour-piercing tracer}}{{-}}{{Annotation|AP-T|Armour-piercing tracer}}{{-}}{{Annotation|HEFI-T|High-explosive fragmentary incendiary tracer}}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="7" | Penetration statistics<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| Universal || 80 || 77 || 66 || 57 || 50 || 45<br />
|-<br />
| 40 mm HE clips || 80 || 77 || 66 || 57 || 50 || 45<br />
|-<br />
| 40 mm AP clips || 80 || 77 || 66 || 57 || 50 || 45<br />
|-<br />
|}<br />
<br />
The best ammunition is the 40 mm HE clips because it has the highest ratio of HE rounds to AP rounds. Take mostly 40 mm HE clips along with several 40 mm AP clips for armoured targets. Because of the gun's seamless reload, there is no reason to use the Universal belt once the others are unlocked. <br />
<br />
=== Additional armament ===<br />
{{Specs-Fleet-Additional}}<br />
<!-- ''Describe the available additional armaments of the ship: depth charges, mines, torpedoes. Talk about their positions, available ammunition and launch features such as dead zones of torpedoes. If there is no additional armament, remove this section.'' --><br />
{{main|Mk.VII depth charge}}<br />
<br />
{{PAGENAME}} has two possible loadouts:<br />
<br />
# Without load<br />
# 2x Mk.VII depth charge<br />
<br />
'''Depth Charges'''<br />
<br />
[[File:{{PAGENAME}}_DC_Order.png|thumb|Mk.VII depth charges numbered according to their drop order (click to view a larger image).]]<br />
<br />
The Mk.VII depth charges are carried amidships in front of the aft gun, one on each side. They are dropped one at a time in the following order:<br />
<br />
# Starboard<br />
# Port<br />
<br />
Before spawning, the detonation time delay can be set anywhere between 3 seconds and 10 seconds.<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="7" | Depth charge characteristics<br />
|-<br />
! Mass (kg)<br />
! Explosive type<br />
! Explosive mass (kg)<br />
! TNT equivalent (kg)<br />
! HE armour penetration (mm)<br />
! Armoured vehicle destruction radius (m)<br />
! Fragment dispersion radius (m)<br />
|-<br />
| 196 || TNT || 130 || 130 || 101 || 8 || 122 <br />
|}<br />
<br />
There is almost no practical reason to use depth charges on any naval vessel in the game. Although they usually result in a one-hit kill if used properly, they are extremely situational, requiring the player to close to point-blank ranges to even use them. In almost every case, anytime a depth charge could be used, the guns or torpedoes can be used instead to greater effect. In fact, depth charges tend to actually be a liability in battle, since they essentially act as exposed ammo racks before they're dropped. They can be shot at, and if destroyed, they have a chance to detonate, instantly destroying the boat.<br />
<br />
Despite this, some success can be had in dropping them either next to, or in front of a large, slow target. If dropping them next to the target, remember the depth charge drop order, since it's most likely that only the depth charges dropped on the side closest to the enemy will deal any damage. If dropping in front of the target, rush in from the sides as quickly as possible and drop them all at once directly in front of the target. For both cases, set the depth charge time delay to the minimum 3 seconds, since any higher time delay will only allow the depth charge to sink further away from the target, giving them more time to move out of the way. Again, using depth charges is extremely situational, and they will only be a liability the vast majority of the time, so take them at your own discretion.<br />
<br />
== Usage in battles ==<br />
<!-- ''Describe the technique of using this ship, the characteristics of her use in a team and tips on strategy. Abstain from writing an entire guide – don't try to provide a single point of view, but give the reader food for thought. Talk about the most dangerous opponents for this vehicle and provide recommendations on fighting them. If necessary, note the specifics of playing with this vehicle in various modes (AB, RB, SB).'' --><br />
<br />
Dark class (FPB 1101)'s main armament, the 114 mm 8cwt QF Mk I, is one of the largest calibre coastal fleet weapons in the game and fires the single strongest HE round of any coastal vessel, allowing it to hull-break anything smaller than a sub-chaser. Guns that can hull-break are very rare in the coastal fleet, and Dark class (FPB 1101) is, by far, the lowest BR vessel equipped with one. However, against sub-chasers and other larger vessels, the damage is lackluster, often requiring multiple hits to destroy a single hull segment. Additionally, the terrible muzzle velocity and very poor ballistics make the gun difficult to use in practice, with it only really effective against stationary targets or at very close ranges, within 500 m at most, and while the muzzle velocity is bad, it isn't quite bad enough to allow the 8cwt QF Mk I to fire from behind cover. Because of this, and despite the one-shot potential, the 8cwt QF Mk I is simply outclassed by the secondary 40 mm QF Mark VII in the vast majority of situations.<br />
<br />
In battle, make the most of the QF Mark VII by switching to manual control with Alt+2. The best advantage of the QF Mark VII over many other coastal weapons is its seamless reload. Without having to worry about reloading, vessels equipped with these types of weapons can be played much more aggressively. However, on Dark class (FPB 1101), the gun is mounted aft, which limits its versatility by preventing it from firing forwards and increasing the time needed to traverse the gun from one side to the other. While being mounted aft does come with some benefits—mainly, it gets destroyed less often—this is an overall net disadvantage and limits Dark class (FPB 1101)'s effectiveness in comparison with vessels with forward-mounted guns, like {{Specs-Link|uk_dark_class_mtb}}.<br />
<br />
Because of this, try to not be the first to rush into action and avoid meeting enemies head-on as much as possible, since it takes some time to turn the hull to get the QF Mark VII on target. Instead, flank the enemy and try to get into ambush positions behind cover. Once in place, turn the hull around so that the stern is facing towards the enemy and use the QF Mark VII to make short work of anything that passes by, prioritizing armoured targets if possible. Dark class (FPB 1101) has a somewhat poor reaction time, so try not to stay in one place for too long to avoid being flanked yourself. Since the hull is already turned around, you can quickly retreat if necessary by using smoke and going forwards. In general, stick to close-range engagements on the flanks with the QF Mark VII, but don't be afraid to switch back to the 8cwt QF Mk I to one-shot tricky opponents either.<br />
<br />
While manually controlling the QF Mark VII, there are several things to keep in mind. First, while you don't have to worry about reloads, the QF Mark VII is one of the few weapons that can overheat, causing it to jam after continuously firing about 200 rounds. This is more than enough for multiple engagements, though, and the overheating doesn't have any negative impact on accuracy as is the case with some other guns. However, you should still pay attention to the overheating and occasionally retreat to let the gun cool off. The second thing to consider is what to do with the primary 8cwt QF Mk I. This gun is completely useless against aircraft, and under AI control, it is practically worthless against surface targets too. Because of this, it's best to just disable the AI gunners. This keeps the gun loaded, level, and forward-facing for when it's actually needed. This ties into the last thing to be aware of, which is that there will be no AI anti-aircraft defense while playing like this, so always look out for aircraft. The AI gunners are very inaccurate against aircraft unless the enemy is coming directly head-on, so don't bother giving control of the QF Mark VII back to the AI gunners; just try to shoot down enemy aircraft manually.<br />
<br />
=== Pros and cons ===<br />
<!-- ''Summarise and briefly evaluate the vehicle in terms of its characteristics and combat effectiveness. Mark its pros and cons in the bulleted list. Try not to use more than 6 points for each of the characteristics. Avoid using categorical definitions such as "bad", "good" and the like - use substitutions with softer forms such as "inadequate" and "effective".'' --><br />
<br />
'''Pros:'''<br />
<br />
* Primary armament can hull-break most opponents<br />
* Secondary armament: very good damage output, high armour penetration, seamless reload<br />
<br />
'''Cons:'''<br />
<br />
* Primary armament: very low muzzle velocity, low rate of fire, difficult to use<br />
* Secondary armament is mounted aft, cannot fire directly forwards<br />
<br />
== History ==<br />
<!-- ''Describe the history of the creation and combat usage of the ship in more detail than in the introduction. If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the ship and adding a block "/History" (example: <nowiki>https://wiki.warthunder.com/(Ship-name)/History</nowiki>) and add a link to it here using the <code>main</code> template. Be sure to reference text and sources by using <code><nowiki><ref></ref></nowiki></code>, as well as adding them at the end of the article with <code><nowiki><references /></nowiki></code>. This section may also include the ship's dev blog entry (if applicable) and the in-game encyclopedia description (under <code><nowiki>=== In-game description ===</nowiki></code>, also if applicable).'' --><br />
<br />
The Dark class fast patrol boats, also known as the Admiralty Type "A" Fast Patrol Boat (FPB), were 18 patrol boats used by the Royal Navy, with another 8 built for export. The class was originally ordered in the late 1940s, calling for a new diesel-powered FPB, with Saunders-Roe eventually winning the design contract in early 1952. The Dark class was built between 1954 and 1958 primarily by Saunders-Roe alongside several other British shipbuilding companies. The Dark class had interchangeable armaments and could be configured as motor torpedo boats, as motor gun boats, or as minelayers. These armaments include:<br />
<br />
* 4x 21-inch torpedoes<br />
* 1x 40 mm Bofors gun (forward), 2x 21-inch torpedoes<br />
* 1x 40 mm Bofors gun (aft), 1x 4.5-inch cannon (forward)<br />
* 16x mines<br />
<br />
The Dark class boats had a length of 71 ft. 8 in., a beam of 19 ft. 5 in., a draught of 6 ft. 1 in, and a standard displacement of 50 long tons and were the first of their kind in Royal Navy service to use diesel engines. Each boat was powered by two 18 cylinder Napier Deltic diesel engines, each producing 2,500 bhp and driving a single shaft, with an exhaust port on the port side hull. The first few Dark class boats were painted entirely in standard grey. However, the port side of the hulls would quickly become stained by the diesel exhaust fumes, even after only a short period of use. Initially, an experimental paint scheme was tried on HMS Dark Biter (P1104) around March 1956 that had the rear hull painted in black with the front hull still in grey. This, too, was found to be unsatisfactory, and eventually, it was decided that the entire hull of the Dark class boats was to be painted in black.<br />
<br />
Eighteen Dark class boats served with the Royal Navy. All of these were built with wooden hulls and aluminium decks on aluminium hull frames with the exception of the final boat, the unique HMS Dark Scout (P1116), which had an all-aluminium welded construction, a redesigned bridge, and transom exhaust ports. In addition to these, eight more Dark class boats were also built for export, all built by Saunders-Roe: two standard boats to Finland; five riveted, all-aluminium boats with an additional electric drive system to Burma; and one standard boat to Japan. A further nine Dark class boats were planned to be built as well for Royal Navy service, but these were all cancelled in 1955. During the 1960s and 1970s, of the 18 Dark class boats in Royal Navy service, two were used as target practice with one being sunk. The surviving 17 were sold to various places, including several to Italian law enforcement in the late 1960s.<br />
<br />
HMS Dark Adventurer, pennant number P1101, was the first of the Dark-class boats. She was built by Saunders-Roe in Beaumaris and was completed on 28th October 1954. She was sold in early 1970.<br />
<br />
== Media ==<br />
;'''Skins'''<br />
<br />
* [https://live.warthunder.com/feed/camouflages/?vehicleCountry=britain&vehicleType=ship&vehicleClass=gun_boat&vehicle=uk_dark_class Skins and camouflages for the {{PAGENAME}} from live.warthunder.com.]<br />
<br />
;Images<br />
<gallery mode="packed" heights="200"><br />
File:Dark_class_Newsflash_from_Igromir_2016_001.jpg<br />
File:Dark_class_Newsflash_from_Igromir_2016_002.jpg<br />
</gallery><br />
<br />
;Videos<br />
{{Youtube-gallery|LW_BVvR7CIg|'''The Shooting Range #122''' - ''War Machines'' section at 00:32 discusses the Dark class (FPB 1101).}}<br />
<br />
== See also ==<br />
<!-- ''Links to articles on the War Thunder Wiki that you think will be useful for the reader, for example:''<br />
* ''reference to the series of the ship;''<br />
* ''links to approximate analogues of other nations and research trees.'' --><br />
<br />
* {{Specs-Link|uk_dark_class_mtb}}<br />
* {{Specs-Link|uk_brave_borderer}}<br />
<br />
== External links ==<br />
<!-- ''Paste links to sources and external resources, such as:''<br />
* ''topic on the official game forum;''<br />
* ''encyclopedia page on the ship;''<br />
* ''other literature.'' --><br />
<br />
* [[wt:en/news/4272-development-newsflash-from-igromir-2016-new-ships-and-first-look-at-japanese-ground-forces-en|[Development] Newsflash from IgroMir 2016! New ships and first look at Japanese Ground Forces!]]<br />
* [https://cfv.org.uk/forum/viewtopic.php?t=215 Coastal Forces Veterans Forum - The British "Dark" Class]<br />
* [http://www.bmpt.org.uk/boat%20histories/Dark%20Class/index.htm British Military Powerboat Team - Dark Class Boats]<br />
* [http://dave-mills.yolasite.com/saro-dark-class-mtbs.php mprints.co.uk - SARO Dark Class MTBs]<br />
* [https://en.wikipedia.org/wiki/Dark-class_patrol_boat Wikipedia - Dark-class patrol boat]<br />
<br />
{{Britain boats}}</div>U27474208https://old-wiki.warthunder.com/index.php?title=Dark_Adventurer&diff=102441Dark Adventurer2021-05-09T15:51:04Z<p>U27474208: Updated to 2.5; changed "Dark Adventurer" -> "Dark class (FPB 1101)" to match in-game name</p>
<hr />
<div>{{Specs-Card<br />
|code=uk_dark_class<br />
|images={{Specs-Card-Image|GarageImage_{{PAGENAME}}.jpg}}<br />
}}<br />
<br />
== Description ==<br />
<!-- ''In the first part of the description, cover the history of the ship's creation and military application. In the second part, tell the reader about using this ship in the game. Add a screenshot: if a beginner player has a hard time remembering vehicles by name, a picture will help them identify the ship in question.'' --><br />
The '''{{Specs|name}}''' is a rank {{Specs|rank}} British motor gun boat {{Battle-rating}}. It was introduced in [[Update 1.83 "Masters of the Sea"]] as part of the British fleet closed beta test. With the split of the naval tech trees in [[Update "New Power"]], {{PAGENAME}} was moved to the coastal fleet tech tree.<br />
<br />
== General info ==<br />
=== Survivability and armour ===<br />
{{Specs-Fleet-Armour}}<br />
<!-- ''Talk about the vehicle's armour. Note the most well-defended and most vulnerable zones, e.g. the ammo magazine. Evaluate the composition of components and assemblies responsible for movement and manoeuvrability. Evaluate the survivability of the primary and secondary armaments separately. Don't forget to mention the size of the crew, which plays an important role in fleet mechanics. Save tips on preserving survivability for the "Usage in battles" section. If necessary, use a graphical template to show the most well-protected or most vulnerable points in the armour.'' --><br />
<br />
Dark class (FPB 1101) has the following armour layout:<br />
<br />
* [[8cwt QF Mk I (114 mm)|114 mm 8cwt QF Mk I]] gunshield: 12.7 mm, hardened armour<br />
* Hull: 40 mm, wood<br />
* Superstructure: 15 mm, wood<br />
<br />
[[File:Dark_class_(FPB_1101)_internals.png|thumb|Dark Class, Dark Adventurer (FPB 1101) internals (starboard side). Note the ammo racks below the forward gun.]]<br />
<br />
Like most coastal vessels, Dark class (FPB 1101) has no practical armor. The gunshield is largely superficial, so while it may stop low-calibre machine guns, heavy machine guns and cannons will easily penetrate it at any range. The hull and superstructure are unarmoured and will not stop any sort of gunfire. <br />
<br />
The hull is split into four hull sections. Starting from the bow and working towards the stern, the first section starts at the bow and ends just in front of forward gun; the second ends just after the bridge; the third ends where the fuel tanks end, just in front of the engines; and the fourth ends at the stern. Dark class (FPB 1101) can be hull-broken by any round with a large enough diameter and explosive mass. In general, this is limited to HE rounds greater with a diameter greater than or equal to 4 inches (102 mm) and with an explosive mass greater than 1.5 kg. At Dark class (FPB 1101)'s battle rating, the only guns capable of hull-breaking her are:<br />
<br />
* the [[10.5 cm SK C/32 (105 mm)|10.5 cm SK C/32]], found on the {{Specs-Link|germ_escort_typem1943}}, and<br />
* the [[8cwt QF Mk I (114 mm)|114 mm 8cwt QF Mk I]], found on Dark class (FPB 1101) herself.<br />
<br />
There is one ammunition storage that holds ammunition for both the primary and secondary gun turrets. It is located directly behind the forward gun turret just above the waterline. Destroying it will instantly destroy the boat. <br />
<br />
Dark class (FPB 1101) has a crew complement of 15. With a stock crew, Dark class (FPB 1101) is knocked out when 10 crew are lost; with an aced crew, this is increased to 11. Overall, the survivability is average. <br />
<br />
=== Mobility ===<br />
{{Specs-Fleet-Mobility}}<br />
<!-- ''Write about the ship's mobility. Evaluate its power and manoeuvrability, rudder rerouting speed, stopping speed at full tilt, with its maximum forward and reverse speed.'' --><br />
<br />
{{NavalMobility<br />
|SpeedForwardStockAB = 73<br />
|SpeedBackStockAB = 27<br />
|TurnTimeStockAB = 26.46<br />
|TurnSpeedStockAB = 45.62<br />
<br />
|TurnTimeSpadedAB = 17.53<br />
|TurnSpeedSpadedAB = 28.67<br />
<br />
|SpeedForwardStockRB = 64<br />
|SpeedBackStockRB = 24<br />
|TurnTimeStockRB = 29.42<br />
|TurnSpeedStockRB = 52.03<br />
<br />
|TurnTimeSpadedRB = 23.53<br />
|TurnSpeedSpadedRB = 40.57<br />
}}<br />
<br />
Dark class (FPB 1101) has a displacement of 64 tons. <br />
<br />
=== Modifications and economy ===<br />
{{Specs-Economy}}<br />
<br />
The recommended modification research order is:<br />
<br />
* Tool Set<br />
* Fire Protection System<br />
* 40 mm HE clips<br />
* 40 mm AP clips<br />
* Smokescreen<br />
* Propeller Replacement<br />
* Improved Rangefinder<br />
* Artillery Support<br />
<br />
After that, prioritize the rest of the seakeeping modifications first, then finish researching the remaining modifications in whatever order you prefer.<br />
<br />
== Armament ==<br />
{{Specs-Fleet-Armaments}}<br />
=== Primary armament ===<br />
{{Specs-Fleet-Primary}}<br />
<!-- ''Provide information about the characteristics of the primary armament. Evaluate their efficacy in battle based on their reload speed, ballistics and the capacity of their shells. Add a link to the main article about the weapon: <code><nowiki>{{main|Weapon name (calibre)}}</nowiki></code>. Broadly describe the ammunition available for the primary armament, and provide recommendations on how to use it and which ammunition to choose.'' --><br />
{{main|8cwt QF Mk I (114 mm)}}<br />
<br />
The primary armament consists of a single 114 mm 8cwt QF Mk I cannon mounted forwards, with a maximum ammunition load of 100 rounds. Stock, the mount can traverse horizontally at a rate of 26°/s and vertically at a rate of 21°/s; with the "Primary Armament Targeting" modification installed, this is increased to 30°/s and 25°/s respectively. The gun is single-shot with a nominal rate of fire of 12 rounds/min. With a stock crew, it can be reloaded in 6.5 seconds; with an aced crew, this is decreased to 5 seconds.<br />
<br />
{| class="wikitable" style="text-align:center" width="25%"<br />
! colspan="2" | Primary armament guidance<br />
|-<br />
! Horizontal !! Vertical<br />
|-<br />
| ±180° || -8°/+12°<br />
|-<br />
|}<br />
<br />
There is only one ammunition type available:<br />
<br />
* 114 mm HE<br />
<br />
{| class="wikitable" style="text-align:center" width="100%"<br />
! colspan="8" | Penetration statistics<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! rowspan="2" | Type of warhead<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 1,000 m !! 2,500 !! 5,000 m !! 7,500 m !! 10,000 m !! 15,000 m<br />
|-<br />
| 114 mm HE || {{Annotation|HE base fuze|High-Explosive with base fuze}} || 34 || 34 || 34 || 34 || 34 || 34<br />
|-<br />
|}<br />
<br />
{| class="wikitable" style="text-align:center" width="100%"<br />
! colspan="10" | Shell details<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! rowspan="2" | Type of warhead<br />
! rowspan="2" | Velocity (m/s)<br />
! rowspan="2" | Projectile mass (kg)<br />
! rowspan="2" | Fuse delay (m)<br />
! rowspan="2" | Fuse sensitivity (mm)<br />
! rowspan="2" | Explosive mass<br>(TNT equivalent) (kg)<br />
! colspan="3" | Ricochet<br />
|-<br />
! 0% !! 50% !! 100%<br />
|-<br />
| 114 mm HE || {{Annotation|HE base fuze|High-Explosive with base fuze}} || 457|| 6.66 || 0 || 0.1 || 2.9 || 79° || 80° || 81°<br />
|-<br />
|}<br />
<br />
The 114 mm HE round is able to hull-break.<br />
<br />
=== Secondary armament ===<br />
{{Specs-Fleet-Secondary}}<br />
<!-- ''Some ships are fitted with weapons of various calibres. Secondary armaments are defined as weapons chosen with the control <code>Select secondary weapon</code>. Evaluate the secondary armaments and give advice on how to use them. Describe the ammunition available for the secondary armament. Provide recommendations on how to use them and which ammunition to choose. Remember that any anti-air armament, even heavy calibre weapons, belong in the next section. If there is no secondary armament, remove this section.'' --><br />
{{main|QF Mark VII (40 mm)}}<br />
<br />
The secondary armament consists of a single 40 mm QF Mk VII cannon mounted aft, with a maximum ammunition load of 1500 rounds. Stock, the mount can traverse horizontally at a rate of 34°/s and vertically at a rate of 29°/s; with the "Auxiliary Armament Targeting" modification installed, this is increased to 40°/s and 34°/s respectively. The gun has a magazine capacity of 4 rounds and a cycle rate of fire of 160 rounds/min. With a stock crew, it can be reloaded in 0.49 seconds; with an aced crew, this is decreased to 0.38 seconds. The reload is short enough that there is a seamless transition between magazines, although continuously firing for too long will cause the gun to overheat and jam. This happens after continuously firing for about 1.25 min, or about 200 rounds. There is no noticeable drop in accuracy as the gun overheats.<br />
<br />
{| class="wikitable" style="text-align:center" width="25%"<br />
! colspan="2" | Secondary armament guidance<br />
|-<br />
! Horizontal !! Vertical<br />
|-<br />
| ±180° || -10°/+89°<br />
|-<br />
|}<br />
<br />
There are three ammunition choices available:<br />
<br />
* Universal: {{Annotation|AP-T|Armour-piercing tracer}}{{-}}{{Annotation|HEFI-T|High-explosive fragmentary incendiary tracer}}<br />
* 40 mm HE clips: {{Annotation|HEFI-T|High-explosive fragmentary incendiary tracer}}{{-}}{{Annotation|HEFI-T|High-explosive fragmentary incendiary tracer}}{{-}}{{Annotation|HEFI-T|High-explosive fragmentary incendiary tracer}}{{-}}{{Annotation|AP-T|Armour-piercing tracer}}<br />
* 40 mm AP clips: {{Annotation|AP-T|Armour-piercing tracer}}{{-}}{{Annotation|AP-T|Armour-piercing tracer}}{{-}}{{Annotation|AP-T|Armour-piercing tracer}}{{-}}{{Annotation|HEFI-T|High-explosive fragmentary incendiary tracer}}<br />
<br />
{| class="wikitable sortable" style="text-align:center" width="100%"<br />
! colspan="7" | Penetration statistics<br />
|-<br />
! rowspan="2" data-sort-type="text" | Ammunition<br />
! colspan="6" | Penetration @ 0° Angle of Attack (mm)<br />
|-<br />
! 10 m !! 100 m !! 500 m !! 1,000 m !! 1,500 m !! 2,000 m<br />
|-<br />
| Universal || 80 || 77 || 66 || 57 || 50 || 45<br />
|-<br />
| 40 mm HE clips || 80 || 77 || 66 || 57 || 50 || 45<br />
|-<br />
| 40 mm AP clips || 80 || 77 || 66 || 57 || 50 || 45<br />
|-<br />
|}<br />
<br />
The best ammunition is the 40 mm HE clips because it has the highest ratio of HE rounds to AP rounds. Take mostly 40 mm HE clips along with several 40 mm AP clips for armoured targets. Because of the gun's seamless reload, there is no reason to use the Universal belt once the others are unlocked. <br />
<br />
=== Additional armament ===<br />
{{Specs-Fleet-Additional}}<br />
<!-- ''Describe the available additional armaments of the ship: depth charges, mines, torpedoes. Talk about their positions, available ammunition and launch features such as dead zones of torpedoes. If there is no additional armament, remove this section.'' --><br />
{{main|Mk.VII depth charge}}<br />
<br />
{{PAGENAME}} has two possible loadouts:<br />
<br />
# Without load<br />
# 2x Mk.VII depth charge<br />
<br />
'''Depth Charges'''<br />
<br />
[[File:{{PAGENAME}}_DC_Order.png|thumb|Mk.VII depth charges numbered according to their drop order (click to view a larger image).]]<br />
<br />
The Mk.VII depth charges are carried amidships in front of the aft gun, one on each side. They are dropped one at a time in the following order:<br />
<br />
# Starboard<br />
# Port<br />
<br />
Before spawning, the detonation time delay can be set anywhere between 3 seconds and 10 seconds.<br />
<br />
{| class="wikitable" style="text-align:center"<br />
! colspan="7" | Depth charge characteristics<br />
|-<br />
! Mass (kg)<br />
! Explosive type<br />
! Explosive mass (kg)<br />
! TNT equivalent (kg)<br />
! HE armour penetration (mm)<br />
! Armoured vehicle destruction radius (m)<br />
! Fragment dispersion radius (m)<br />
|-<br />
| 196 || TNT || 130 || 130 || 101 || 8 || 122 <br />
|}<br />
<br />
There is almost no practical reason to use depth charges on any naval vessel in the game. Although they usually result in a one-hit kill if used properly, they are extremely situational, requiring the player to close to point-blank ranges to even use them. In almost every case, anytime a depth charge could be used, the guns or torpedoes can be used instead to greater effect. In fact, depth charges tend to actually be a liability in battle, since they essentially act as exposed ammo racks before they're dropped. They can be shot at, and if destroyed, they have a chance to detonate, instantly destroying the boat.<br />
<br />
Despite this, some success can be had in dropping them either next to, or in front of a large, slow target. If dropping them next to the target, remember the depth charge drop order, since it's most likely that only the depth charges dropped on the side closest to the enemy will deal any damage. If dropping in front of the target, rush in from the sides as quickly as possible and drop them all at once directly in front of the target. For both cases, set the depth charge time delay to the minimum 3 seconds, since any higher time delay will only allow the depth charge to sink further away from the target, giving them more time to move out of the way. Again, using depth charges is extremely situational, and they will only be a liability the vast majority of the time, so take them at your own discretion.<br />
<br />
== Usage in battles ==<br />
<!-- ''Describe the technique of using this ship, the characteristics of her use in a team and tips on strategy. Abstain from writing an entire guide – don't try to provide a single point of view, but give the reader food for thought. Talk about the most dangerous opponents for this vehicle and provide recommendations on fighting them. If necessary, note the specifics of playing with this vehicle in various modes (AB, RB, SB).'' --><br />
<br />
The main armament of Dark Adventurer is a single 114 mm 8cwt QF Mk I. This gun has a powerful HE round with an explosive mass of 2.5 kg of TNT, and, since its larger than 4 inches, it can also hull-break most of the smaller boats seen around this battle rating. Hull-break is triggered by destroying an enemy boat's compartment, and, if done successfully, it will result in a one-shot kill. Despite being one of the only guns at this battle rating capable of hull-breaking, the gun overall is poor. Its rate of fire is relatively slow at 12 rounds per minute, and its muzzle velocity is very low at 457 m/s, both of which contribute to making the gun difficult to use at long ranges and against fast-moving targets. Even at close ranges, it gets outperformed by Dark Adventurer's other weapon anyway. The 8cwt QF Mk I is the primary armament in name only.<br />
<br />
The secondary gun, the 40 mm QF Mark VII, is actually a far superior weapon, and there is generally no reason to even use the 8cwt QF Mk I over it. The QF Mark VII is a 40 mm Bofors L/60 gun, one of the best naval automatic cannons in the game, and Dark Adventurer is one of the lowest battle rating vehicles to receive it. Where the 114 mm 8cwt QF Mk I lacks, the 40 mm QF Mark VII excels. Its rate of fire, though a bit low for an automatic cannon, is much higher at 160 rounds per minute. The gun's magazine size of only 4 rounds may seem like a disadvantage on paper, but in practice, the reload is quick enough that the gun can fire continuously as if there wasn't a reload at all. The QF Mark VII also has a much larger effective range of roughly 3.25 km thanks to its higher muzzle and relatively large projectile mass. This allows Dark Adventurer to outrange, and thus be effectively immune to, many guns at this battle rating, most notably the [[2 cm/65 C/38 (20 mm)]] and the [[Oerlikon Mk.II (20 mm)]], both of which have a maximum range of roughly 2 km.<br />
<br />
The QF Mark VII has a very powerful HE round for its calibre as well as an impressive AP round, the latter of which has a maximum penetration of 80 mm of armour, more than enough to trivialize any armour Dark Adventurer might come across. The gun is very powerful and doesn't require much ammunition to destroy most of its enemies, usually less than 10 rounds if all rounds hit. In fact, it's actually quite rare that Dark Adventurer will use up more than a couple hundred rounds of ammunition throughout the entire match. This is good because firing the gun for too long (indicated by the red circle around the crosshair) will cause the gun to jam and will require a substantial amount of time before it can be fired again. Always pay attention to the red circle and try to never let the gun jam.<br />
<br />
Despite how good the QF Mark VII might be, though, the boat it's mounted on has some issues. The first of these is rather obvious: the gun is mounted on the rear of the boat, which of course prevents it from firing forwards. Because of this, there is a ~25° dead zone to either side in which the gun is unable to fire. Second, the survivability of Dark Adventurer is close to nonexistent, especially when considering the ammo racks in the front of the hull. Dark Adventurer can either be played at long range to outrange enemy fire or by using hard cover to hide the hull. Either playstyle is really dependent on the map and is mostly down to player preference. Regardless of how Dark Adventurer is played, she shouldn't be the first to charge into action. If an enemy is met straight-on, time is needed to turn the hull to allow the QF Mark VII to fire, enough time for a smart enemy to inflict major damage.<br />
<br />
;Depth Charges<br />
<br />
It should be noted that Dark Adventurer can carry two Mk.VII depth charges. Being an anti-submarine weapon and without the presence of submarines in the game, their usage against surface targets is very situational. Sailing up right next to a slower target and dropping a depth charge can lead to some success, though again, this is very situational. If attempting this, remember that depth charge on the starboard side always drops first and that there is no reason to use any depth charge activation time setting above the minimum 3 seconds, since higher delay times means the depth charge will sink further, and thus away, from the target. For the most part, though, there is no reason to even take them into battle since if they're not dropped, they essentially become extra ammo racks to shoot at.<br />
<br />
;Ammunition Choices<br />
<br />
The 40 mm HE clips should be the primary ammunition choice since it contains the highest ratio of HE to AP rounds. HE rounds have the highest effectiveness against aircraft and boats, so the choice that maximizes this is the best. A small amount of 40 mm AP clips should also be taken to deal with armoured targets. AP rounds can also be used against boats coming towards Dark Adventurer straight-on. Whereas HE rounds would just explode on an already destroyed bow compartment, AP rounds can pass through and deal damage to the rear of the boat.<br />
<br />
=== Pros and cons ===<br />
<!-- ''Summarise and briefly evaluate the vehicle in terms of its characteristics and combat effectiveness. Mark its pros and cons in the bulleted list. Try not to use more than 6 points for each of the characteristics. Avoid using categorical definitions such as "bad", "good" and the like - use substitutions with softer forms such as "inadequate" and "effective".'' --><br />
<br />
'''Pros:'''<br />
<br />
* Primary armament can hull-break most opponents<br />
* Secondary armament: very good damage output, high armour penetration, seamless reload<br />
<br />
'''Cons:'''<br />
<br />
* Primary armament: very low muzzle velocity, low rate of fire, difficult to use<br />
* Secondary armament is mounted aft, cannot fire directly forwards<br />
<br />
== History ==<br />
<!-- ''Describe the history of the creation and combat usage of the ship in more detail than in the introduction. If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the ship and adding a block "/History" (example: <nowiki>https://wiki.warthunder.com/(Ship-name)/History</nowiki>) and add a link to it here using the <code>main</code> template. Be sure to reference text and sources by using <code><nowiki><ref></ref></nowiki></code>, as well as adding them at the end of the article with <code><nowiki><references /></nowiki></code>. This section may also include the ship's dev blog entry (if applicable) and the in-game encyclopedia description (under <code><nowiki>=== In-game description ===</nowiki></code>, also if applicable).'' --><br />
<br />
The Dark class fast patrol boats, also known as the Admiralty Type "A" Fast Patrol Boat (FPB), were 18 patrol boats used by the Royal Navy, with another 8 built for export. The class was originally ordered in the late 1940s, calling for a new diesel-powered FPB, with Saunders-Roe eventually winning the design contract in early 1952. The Dark class was built between 1954 and 1958 primarily by Saunders-Roe alongside several other British shipbuilding companies. The Dark class had interchangeable armaments and could be configured as motor torpedo boats, as motor gun boats, or as minelayers. These armaments include:<br />
<br />
* 4x 21-inch torpedoes<br />
* 1x 40 mm Bofors gun (forward), 2x 21-inch torpedoes<br />
* 1x 40 mm Bofors gun (aft), 1x 4.5-inch cannon (forward)<br />
* 16x mines<br />
<br />
The Dark class boats had a length of 71 ft. 8 in., a beam of 19 ft. 5 in., a draught of 6 ft. 1 in, and a standard displacement of 50 long tons and were the first of their kind in Royal Navy service to use diesel engines. Each boat was powered by two 18 cylinder Napier Deltic diesel engines, each producing 2,500 bhp and driving a single shaft, with an exhaust port on the port side hull. The first few Dark class boats were painted entirely in standard grey. However, the port side of the hulls would quickly become stained by the diesel exhaust fumes, even after only a short period of use. Initially, an experimental paint scheme was tried on HMS Dark Biter (P1104) around March 1956 that had the rear hull painted in black with the front hull still in grey. This, too, was found to be unsatisfactory, and eventually, it was decided that the entire hull of the Dark class boats was to be painted in black.<br />
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Eighteen Dark class boats served with the Royal Navy. All of these were built with wooden hulls and aluminium decks on aluminium hull frames with the exception of the final boat, the unique HMS Dark Scout (P1116), which had an all-aluminium welded construction, a redesigned bridge, and transom exhaust ports. In addition to these, eight more Dark class boats were also built for export, all built by Saunders-Roe: two standard boats to Finland; five riveted, all-aluminium boats with an additional electric drive system to Burma; and one standard boat to Japan. A further nine Dark class boats were planned to be built as well for Royal Navy service, but these were all cancelled in 1955. During the 1960s and 1970s, of the 18 Dark class boats in Royal Navy service, two were used as target practice with one being sunk. The surviving 17 were sold to various places, including several to Italian law enforcement in the late 1960s.<br />
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HMS Dark Adventurer, pennant number P1101, was the first of the Dark-class boats. She was built by Saunders-Roe in Beaumaris and was completed on 28th October 1954. She was sold in early 1970.<br />
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== Media ==<br />
;'''Skins'''<br />
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* [https://live.warthunder.com/feed/camouflages/?vehicleCountry=britain&vehicleType=ship&vehicleClass=gun_boat&vehicle=uk_dark_class Skins and camouflages for the {{PAGENAME}} from live.warthunder.com.]<br />
<br />
;Images<br />
<gallery mode="packed" heights="200"><br />
File:Dark_class_Newsflash_from_Igromir_2016_001.jpg<br />
File:Dark_class_Newsflash_from_Igromir_2016_002.jpg<br />
</gallery><br />
<br />
;Videos<br />
{{Youtube-gallery|LW_BVvR7CIg|'''The Shooting Range #122''' - ''War Machines'' section at 00:32 discusses the Dark class (FPB 1101).}}<br />
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== See also ==<br />
<!-- ''Links to articles on the War Thunder Wiki that you think will be useful for the reader, for example:''<br />
* ''reference to the series of the ship;''<br />
* ''links to approximate analogues of other nations and research trees.'' --><br />
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* {{Specs-Link|uk_dark_class_mtb}}<br />
* {{Specs-Link|uk_brave_borderer}}<br />
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== External links ==<br />
<!-- ''Paste links to sources and external resources, such as:''<br />
* ''topic on the official game forum;''<br />
* ''encyclopedia page on the ship;''<br />
* ''other literature.'' --><br />
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* [[wt:en/news/4272-development-newsflash-from-igromir-2016-new-ships-and-first-look-at-japanese-ground-forces-en|[Development] Newsflash from IgroMir 2016! New ships and first look at Japanese Ground Forces!]]<br />
* [https://cfv.org.uk/forum/viewtopic.php?t=215 Coastal Forces Veterans Forum - The British "Dark" Class]<br />
* [http://www.bmpt.org.uk/boat%20histories/Dark%20Class/index.htm British Military Powerboat Team - Dark Class Boats]<br />
* [http://dave-mills.yolasite.com/saro-dark-class-mtbs.php mprints.co.uk - SARO Dark Class MTBs]<br />
* [https://en.wikipedia.org/wiki/Dark-class_patrol_boat Wikipedia - Dark-class patrol boat]<br />
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{{Britain boats}}</div>U27474208https://old-wiki.warthunder.com/index.php?title=File:Dark_Adventurer_DC_Order.png&diff=101203File:Dark Adventurer DC Order.png2021-04-20T19:03:25Z<p>U27474208: U27474208 uploaded a new version of File:Dark class (FPB 1101) DC Order.png</p>
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<div>[[In-game screenshots]]</div>U27474208https://old-wiki.warthunder.com/index.php?title=File:Dark_Adventurer_DC_Order.png&diff=101202File:Dark Adventurer DC Order.png2021-04-20T19:02:13Z<p>U27474208: U27474208 uploaded a new version of File:Dark class (FPB 1101) DC Order.png</p>
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<div>[[In-game screenshots]]</div>U27474208https://old-wiki.warthunder.com/index.php?title=File:Dark_Adventurer_DC_Order.png&diff=101201File:Dark Adventurer DC Order.png2021-04-20T18:59:44Z<p>U27474208: In-game screenshots</p>
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<div>[[In-game screenshots]]</div>U27474208