Difference between pages "Type K-8 No.13 late" and "Type K-3 No.1"

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{{About
 
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| about = Japanese sub-chaser '''{{PAGENAME}}'''
 
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| usage = the other version
 
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| link = Type K-8 No.13
 
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}}
 
 
{{Specs-Card
 
{{Specs-Card
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|code=jp_kusen_tei_13_1944
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|code=jp_no1_ch2
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|images={{Specs-Card-Image|GarageImage_{{PAGENAME}}.jpg}}
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|images={{Specs-Card-Image|GarageImage {{PAGENAME}}.jpg|GarageImage {{PAGENAME}} (2).jpg}}
 
}}
 
}}
  
 
== Description ==
 
== Description ==
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<!-- ''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.'' -->
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<!--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.-->
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The Japanese Project K8, No.13-class Submarine Chasers were built as a part of the Maru 4 Programme. The lead ship of her class was completed in July 1940, while the last ship was completed in January 1942, with a total of 15 vessels built. During the WW2 most of the vessels of the class were re-armed with [[25 mm/60 Type 96 (25 mm)|25 mm Type 96]] and fitted with 22-GO radar. They fought primarily in the southern seas, from the Philippines to Bali Island, but also participated in numerous convoy escorts. Only 5 vessels of the class survived the war.
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The Japanese Project K3, No.1-class Submarine Chaser No.1 was completed in March 1934 as a part of the Maru 1 Programme. It was the first class of the dedicated Anti-Submarine Warfare vessels in the Imperial Japanese Navy. The major advantage of the vessel was its high speed, while the key issue was a problem with the strength of the hull, which was later addressed in refits, modification of the No.3 subclass before it was built and finally, fully resolved in the [[Type K-7 No.4|No.4-class]]. She spent most of her service in the southern seas, survived the war without any notable successes, and finally was scuttled by the Royal Navy off Singapore.
  
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The '''{{Specs|name}}''' is a Japanese sub-chaser introduced in [[Update 1.89 "Imperial Navy"]]. She has an exceptional survivability combined with a very good armament for her BR. She struggles the most in mobility, which is not helped by her being a comparatively large vessel for the BR, making her a very attractive target to the Motor Torpedo Boats and enemy bombers alike. Compared to [[Type K-3 No.1|her predecessor]], she improves survivability and armament, at the expense of significantly lower speed and manoeuvrability.
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The '''{{Specs|name}}''' was introduced in [[Update 1.89 "Imperial Navy"]]. The ship has a powerful and varied combination of weapons, as well as good survivability compared to the other vessels in her BR. Her main disadvantages come from being such a large vessel - she has a low manoeuvrability and is easy to hit with nearly anything, from bombs and rockets to artillery strikes.
  
 
== General info ==
 
== General info ==
 
=== Survivability and armour ===
 
=== Survivability and armour ===
 
{{Specs-Fleet-Armour}}
 
{{Specs-Fleet-Armour}}
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<!-- ''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.'' -->
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<!--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.-->
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[[File:Type K-8 Survivability.jpg|thumb|left|Type K-8 can survive a few ships simultaneously creating a spectacle with all the shrapnel flying off.]]
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Relatively well-armoured, large ship with high survivability for its rank. Its major weakness is in being prone to fires. Major strength in a high crew count of 65, one of the largest in its battle rating class (after [[HMCS Brantford]]). Weapons are relatively well distributed, making them a difficult targets to take down separately. While the ship itself is large in size, its frontal cross-section is relatively small, making it a tricky target in a hands of a more experienced player. Secondary anti-aircraft armament, while powerful, is centred around sides, making ship most prone to the attacks from a rear. Another potential weak-point are ammunition racks exposed over the water line, however those can be minimized by reducing the ammunition count by half.
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The {{specs|name}}'s primary characteristic is her exceptional survivability for the battle rating. With a crew count of {{specs|crew}}, she's got nearly the double of the second-best vessel, and nearly 7 times the crew count of any US vessel in this battle rating. She's also the only ship within the battle rating to have 7 hull sections, at least one more than all the other ships. Overall this gives her an outstanding ability to survive even a focused gun fire from multiple boats.
 
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The {{PAGENAME}} still has some weak points to her survivability. First of all, she has one of the thinnest armour layers, making it impossible to deflect even the lowest calibre guns at nearly any range. Secondly her primary gun is fully exposed, leading to it being often disabled under enemy fire. And lastly her ammunition storage is exposed fully over the water level, directly under the primary gun, making for a significant chances of ammo-racking the ship.
 
  
 
=== Mobility ===
 
=== Mobility ===
 
{{Specs-Fleet-Mobility}}
 
{{Specs-Fleet-Mobility}}
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<!-- ''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.'' -->
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<!--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.-->
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With the top speed of 33km/h, she's a relatively large, lumbering target. It's not helped by an average rudder turning speed of 4.85s. Overall it's an attractive target for a torpedo attacks and a long-range gunnery fire.
+
[[File:Type K-3 dodge torpedoes.png|thumb|right|Type K-3 taking evasive action to avoid incoming torpedoes]]
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 +
While the ship is relatively large it's still characterized with a comparatively high manoeuvrability. While the base speed is 44 km/h, a fully-upgraded setup can reach an impressive maximum speed of 59 km/h. Combined with a Rudder Replacement K-3 can choose engagements even with a number of torpedo boats.
  
 
{{NavalMobility}}
 
{{NavalMobility}}
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=== Primary armament ===
 
=== Primary armament ===
 
{{Specs-Fleet-Primary}}
 
{{Specs-Fleet-Primary}}
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[[File:40 mm 62 Vickers on Type K-3.png|thumb|Manned by two gunners 40 mm Vickers has a horizontal guidance of 180° and vertical -10°/+75°, making it an excellent dual-purpose gun.]]
 
<!-- ''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.'' -->
 
<!-- ''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.'' -->
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[[File:Type K-8 Type 3.jpg|thumb|left|The Type 3 cannon firing a visible HE shell]]
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{{main|40 mm/62 Vickers (40 mm)}}
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{{main|8 cm/40 Type 3 (76 mm)}}
 
  
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The {{PAGENAME}}'s primary armament is a single 8 cm Type 3 cannon. It can fire up to 20 shots/minute of Type 0 HE shells that are relatively potent, with 480 g of TNT, being able to knock out individual hull sections on most boats she'll encounter, but struggling with larger units like submarine chasers.
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Primary weapon is a relatively low-shell-speed, high-arcing, high rate of fire dual-barrel 40 mm Vickers autocannon. It's an excellent weapon for relatively quickly dispatching targets within 1.5 km range, where its high rate of fire can be used to correct lead and land number of shots before the need to reload. It's extremely useful against small fast vessels, such as hydrofoil torpedo boats. At range however, the flight time becomes a near-impossible for tracking anything smaller than a sub-chaser. There is, however, one advantage to the gun at >1,500 m range: due to its low shell speed gun will fire at a very high arc, allowing K-3 to be one of a very few ships within its rank capable of reaching enemies hidden behind near-vertical obstacles, making it an excellent weapon to use against various opponents trying to hide behind the islands or other terrain obstacles.
  
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The gun was originally designed as a high-elevation one, historically being often mounted on a larger ships for anti-aircraft duty. As a result, her horizontal guidance is ±180° and vertical -7°/+75°, covering most of the field around the ship with exception of the deadzone behind the conning tower, although the gun can still engage airborne targets by firing above it. Targetting speed is slow, just 9.4°/s, however it's sufficient to engage targets bar fast attack boats in an extremely short range where machine guns engage them anyway.
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* '''Universal:''' {{Annotation|HEF|High-explosive fragmentation}}{{-}}{{Annotation|APHE|Armour-piercing high-explosive}}{{-}}{{Annotation|HEF|High-explosive fragmentation}}{{-}}{{Annotation|APHE|Armour-piercing high-explosive}}
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{{Clear|left}}
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* '''40 mm HE clips:''' {{Annotation|HEF|High-explosive fragmentation}}{{-}}{{Annotation|HEF|High-explosive fragmentation}}{{-}}{{Annotation|HEF|High-explosive fragmentation}}{{-}}{{Annotation|APHE|Armour-piercing high-explosive}}
−
 
+
* '''40 mm AP clips:''' {{Annotation|APHE|Armour-piercing high-explosive}}{{-}}{{Annotation|APHE|Armour-piercing high-explosive}}{{-}}{{Annotation|APHE|Armour-piercing high-explosive}}{{-}}{{Annotation|HEF|High-explosive fragmentation}}- Armour piercing shells, good at damaging interior modules and armoured ships
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{{:8 cm/40 3rd Year Type (76 mm)/Ammunition|8 cm Type 0 HE, 8 cm Type 0 HE-TF}}
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* '''40 mm HE-TF clips:''' {{Annotation|HE-TF|High-explosive time fuse}}{{-}}{{Annotation|HE-TF|High-explosive time fuse}}{{-}}{{Annotation|HE-TF|High-explosive time fuse}}{{-}}{{Annotation|HE-TF|High-explosive time fuse}}- Time fuse HE shells, effective against both: boats and aircraft, generally superior to the HE clip, unless trying to engage boats at a very long range.
  
 +
{{:40 mm/62 Vickers (40 mm)/Ammunition|APHE, HEF, HE-TF}}
 
=== Secondary armament ===
 
=== Secondary armament ===
 
{{Specs-Fleet-Secondary}}
 
{{Specs-Fleet-Secondary}}
 
<!-- ''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.'' -->
 
<!-- ''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.'' -->
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[[File:Type K-8 Type 93.jpg|thumb|right|Two Type 96 automatic cannons on a platform have a wide firing arcs, being able to effectively engage most targets]]
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[[File:25 mm 60 Type 96.png|thumb|Rapid firing, single-barrel 25 mm/60 Type 96 is effective against both: naval and airborne targets.]]
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{{main|25 mm/60 Type 96 (25 mm)}}
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{{main|Type 96 (25 mm)}}
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Same as the predecessors [[Type K-3 No.1]] and [[Type K-7 No.4]], this boat is equipped with three single mounting 25 mm Type 96 autocannons, which make for a very potent secondary weapons. The HE type rounds this gun fires have no trouble knocking out PT boats and even larger support vessels, sometimes even with one magazine all together. Alternatively, AP racks can be used for handling armoured boats with a penetration of up to 37 mm at 1,000 m range, which is more than enough to penetrate even hardened armour gun shield of German boats.
 
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Two of the cannons are placed on a platform in front of the smoke funnel, while the third one is located right behind the primary cannon, in a super-firing position. Additionally due to the HE these cannons can engage targets at range and still do damage. This cannon can also cause critical damage to aircraft with only a single hit.
 
  
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Note that the autocannon in a front mount has significantly decreased guidance arc. While for the two guns on the platform amidship have horizontal guidance of ±180°, the front one has only -90°/+40°, which means that the guns have a relatively narrow arc where majority of the secondary guns can fire.
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The {{PAGENAME}} possesses some of the best anti-air armament among Japanese rank 1 ships, making it extremely useful in fending-off enemy ships, even armoured gun boats, and relatively useful against air targets. The only disadvantage is in the guns layout, where at most 2 guns can be firing at a target, due to the fact that two guns amid-ship are pointing in the opposite directions, without any overlapping field of fire.
  
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* '''Universal:''' {{Annotation|HEF-T*|High-explosive fragmentation tracer (self-destroying)}}{{-}}{{Annotation|HEF|High-explosive fragmentation}}{{-}}{{Annotation|AP-T|Armour-piercing tracer}}{{-}}{{Annotation|HEI|High-explosive incendiary}} - Good balance between firepower and tracer contents, useful for newcomers to the Japanese 25 mm autocannon.
+
* '''Universal:''' {{Annotation|HEF-T*|High-explosive fragmentation tracer (self-destroying)}}{{-}}{{Annotation|HEF|High-explosive fragmentation}}{{-}}{{Annotation|AP-T|Armour-piercing tracer}}{{-}}{{Annotation|HEI|High-explosive incendiary}}
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* '''APT:''' {{Annotation|AP-T|Armour-piercing tracer}}{{-}}{{Annotation|AP-T|Armour-piercing tracer}}{{-}}{{Annotation|AP-T|Armour-piercing tracer}}{{-}}{{Annotation|HEF|High-explosive fragmentation}} - Full of AP shells, it's recommended to take a few belts of AP in case you meet a Russian armoured river boat.
+
* '''25 mm APT belt:''' {{Annotation|AP-T|Armour-piercing tracer}}{{-}}{{Annotation|AP-T|Armour-piercing tracer}}{{-}}{{Annotation|AP-T|Armour-piercing tracer}}{{-}}{{Annotation|HEF|High-explosive fragmentation}}
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* '''HEIT:''' {{Annotation|HEF-T*|High-explosive fragmentation tracer (self-destroying)}}{{-}}{{Annotation|HEI|High-explosive incendiary}}{{-}}{{Annotation|HEI|High-explosive incendiary}}{{-}}{{Annotation|HEI|High-explosive incendiary}} - Trades tracer rounds for extra firepower, they're more efficient than Universal belts at knocking out PT boats and aircraft at the expense of price. Universal belts are free, while APT and HEI belts cost 5 {{sl}} each.
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* '''25 mm HEIT belts:''' {{Annotation|HEF-T*|High-explosive fragmentation tracer (self-destroying)}}{{-}}{{Annotation|HEI|High-explosive incendiary}}{{-}}{{Annotation|HEI|High-explosive incendiary}}{{-}}{{Annotation|HEI|High-explosive incendiary}}
  
 
{{:25 mm/60 Type 96 (25 mm)/Ammunition|HEF-T*, HEI, HEF, AP-T}}
 
{{:25 mm/60 Type 96 (25 mm)/Ammunition|HEF-T*, HEI, HEF, AP-T}}
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=== Anti-aircraft armament ===
 
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{{Specs-Fleet-AA}}
 
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<!-- ''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.'' -->
 
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[[File:Type K-8 Type 96 cannon.jpg|thumb|left|Low-mounted dual Type 93 is relatively accurate and covers the entirety of the rear of the ship]]
 
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{{main|Type 93 (13.2 mm)}}
 
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Unlike predecessors, this boat have separate anti-aircraft armament which consists from twin Type 93 (13.2 mm) machine guns on a single mount at the rear of the ship. It has a notable advantage in vertical guidance over the Type 96 automatic cannons, being able to aim at targets up to +80° vs +65° for the Type 96. Also having nearly double the fire rate further increases its chances of landing successful shots at the enemy. Even with two bullets hitting the enemy, the overall damage is much lower, with 13.2 mm HEI bullet bearing 1 g TNT, while 25 mm HEI bears 15.3 g TNT.
 
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{{Clear|left}}
 
  
 
=== Additional armament ===
 
=== Additional armament ===
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<!-- ''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).'' -->
 
<!-- ''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).'' -->
  
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The primary role of the Type K-8 is to lure enemy's attention away from more vulnerable targets. Being large, intimidating ship it will often be under fire of a number of enemy units. And often times it can freely survive those engagements, largely thanks to its 8cm main gun packing powerful punch, although delivered at a low fire rate, and assisted by a number of secondaries at all angles.
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The K-3 is largely a support ship that excels in one-on-one fights in similar or lower battle ratings, while still being useful in higher-BR battles. It's ill-advised to rush capture points in this ship due to its large size that makes for an attractive target to the enemy team. It's a particularly difficult vessel to play until unlocking fire protection system, as it's extremely easy to ignite and fires will quickly take it down - for that reason when fighting against Type K-3 it's highly recommended to use HE shells on every occasion.
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The sub-chaser's primary advantage is in a very narrow hull and an outstanding 40 mm gun. The ship is so narrow in fact that it's near-impossible to hit for a motor torpedo boats when facing bow (front) or stern (rear). On the other hand, its length is one of, if not the longest in BR, being a serious issue when faced with torpedoes or high-rank ships, therefore care should the taken to pre-emptively position oneself when engaging opponents.
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 +
The ship is best taken equipped with less than a half of a total ammunition capacity, as it's more than sufficient for a vast majority of battles, while significantly lowers the cross-section of the unarmoured ammunition racks that are prone to explosions. Also ignoring depth charges is recommended due to their extremely limited usefulness while adding mass and risk of explosion to the ship.
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 +
It's generally good to have at least some HE-TF ammunition onboard, as with a rapid fire of the 40 mm Vickers it can dispatch a field of flak fire very effectively destroying enemy bombers and fighters, or at least scaring them off. Within Rank 1 battles 40 mm HE clips are a better choice than the Universal or SAP, as none of the targets will have enough armour to resist them even at 2,000 m, while additional explosive power increases the speed in which enemies can be destroyed. Primary gun is positioned at the front of the vessel, making it possible to peek from cover and shoot, without exposing much of a vessel. High firing arc makes it possible to shoot from behind cover of a small islands and to attack enemies inaccessible to the ships with higher shell speed.
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Both K-3 and K-7 have a relatively undefended rear arc, where at most only one 20 mm anti-aircraft gun can shoot back.
  
 
=== Pros and cons ===
 
=== Pros and cons ===
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'''Pros:'''
 
'''Pros:'''
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* Excellent survivability
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* Good armament
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* Effective 40 mm twin cannon with high firing arc and rapid fire
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* 360° weapon coverage
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* Secondary armament is very powerful against small ships and unsuspecting bombers
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* Good anti-aircraft capability
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* Decent anti-aircraft artillery for its battle rating
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* Main gun able to engage aircraft
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* Decent speed
 +
* Possesses one of the highest crew count in its rank
 +
* HE-TF rounds are very useful against enemy vessels in close quarter battles
  
 
'''Cons:'''
 
'''Cons:'''
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* Slow speed and low manoeuvrability
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* Low manoeuvrability
 
* Large target
 
* Large target
 +
* Primary armament is not very effective against larger, well-armoured ships
 +
* Low shell speed makes for a challenging gameplay when up-tiered
  
 
== History ==
 
== History ==
 
<!-- ''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).'' -->
 
<!-- ''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).'' -->
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The No.1-class submarine chasers (第一号型駆潜艇, Dai 1 Gō-gata Kusentei) were built under Maru 1 Keikaku programme, totalling 2 ships built in 1933. Vessels suffered from stability and hull strength issues that were resolved in a later redesign that became the [[Type K-7 No.4|No.4]]. The ship is a flush deck design with a relatively high freeboard for its size and an unproportionally large bridge. Ship's waterline length was 64 m, width 5.6 m for a total displacement of 383 tonnes. Crew consisted of 53 sailors, with up to 65 capacity.
  
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Submarine chasers of the project number K8, also known as the No.13-class submarine chasers (第十三号型駆潜艇, Dai 13 Gō-gata Kusentei), were built under Maru 4 Keikaku programme, totalling 15 ships built from 1940 till 1942. The primary principle of the design was to build capable ships quickly and cheaply. The resulting design used cheaper, more common steel found on merchant ships, not military units. But an additional reinforcements created a notably sturdier hull, which also helped avoiding secondary vibrations due to the sonar. Furthermore, the ship had an increased ballast, lowered centre of gravity and an increased hull width what resulted in a ship having displacement roughly 1.5 times the one of its predecessor, the [[Type K-7 No.4]].
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Designers considered one of two primary guns against surfaced submarines: Either 8 cm/40 3rd Year Type naval gun or Type Bi-4 cm autocannon, which they've eventually picked for the final design. Both proposed guns were built domestically in Japan on a license. Additionally armament featured two imported Lewis light machine guns with the third one added during the war. Ships were equipped with 36 depth charges released overboard (projectors were added in the No.4). Additional equipment included Type 91 sonar, Type MV hydrophone, 6m motor boat and a 6m cutter, 60 mm search and signal light and an additional 30 mm search light.
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===Ships of class===
 
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{{Sp-begin|Ships of class}}
 
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{| class="wikitable sortable"
 
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! rowspan="2" data-sort-type="text" | Name
 
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! data-sort-type="isoDate" rowspan="2" | Completed
 
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! colspan="3" | Fate at the end of the war
 
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! rowspan="2" data-sort-type="text" | Dismantled<br/>post-war
 
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|-
 
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! data-sort-type="text" | Status
 
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! data-sort-type="text" | By
 
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! data-sort-type="isoDate" | Date
 
−
|-
 
−
| No. 13
 
−
| 1940-07-15
 
−
| Sunk
 
−
| Submarine, USS Pickerel (SS-177)
 
−
| 1943-04-03
 
−
|
 
−
|-
 
−
| No. 14
 
−
| 1941-03-31
 
−
| Destroyed
 
−
| Aircraft
 
−
| 1945-07-28
 
−
|
 
−
|-
 
−
| No. 15
 
−
| 1941-03-31
 
−
| Survived
 
−
|
 
−
|
 
−
| 1948-04-23
 
−
|-
 
−
| No. 16
 
−
| 1941-04-05
 
−
| Sunk
 
−
| Aircraft
 
−
| 1944-07-04
 
−
|
 
−
|-
 
−
| No. 17
 
−
| 1941-07-31
 
−
| Sunk
 
−
| Submarine, USS Springer (SS-414)
 
−
| 1945-04-28
 
−
|
 
−
|-
 
−
| No. 18
 
−
| 1941-07-31
 
−
| Sunk
 
−
| Aircraft
 
−
| 1944-12-30
 
−
|
 
−
|-
 
−
| No. 19
 
−
| 1941-09-20
 
−
| Survived
 
−
|
 
−
|
 
−
| 1948
 
−
|-
 
−
| No. 20
 
−
| 1941-08-20
 
−
| Survived
 
−
|
 
−
|
 
−
| 1948-05-04
 
−
|-
 
−
| No. 21
 
−
| 1941-08-20
 
−
| Survived
 
−
|
 
−
|
 
−
| 1947
 
−
|-
 
−
| No. 22
 
−
| 1941-10-12
 
−
| Sunk
 
−
| Aircraft
 
−
| 1944-02-19
 
−
|
 
−
|-
 
−
| No. 23
 
−
| 1941-11-15
 
−
| Survived
 
−
|
 
−
|
 
−
| 1948
 
−
|-
 
−
| No. 24
 
−
| 1941-12-20
 
−
| Sunk
 
−
| Destroyer, USS Burns (DD-588)
 
−
| 1944-02-17
 
−
|
 
−
|-
 
−
| No. 25
 
−
| 1941-12-29
 
−
| Sunk
 
−
| Submarine, USS Grunion (SS-216)
 
−
| 1942-07-15
 
−
|
 
−
|-
 
−
| No. 26
 
−
| 1941-12-20
 
−
| Sunk
 
−
| Aircraft
 
−
| 1945-07-30
 
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|
 
−
|-
 
−
| No. 27
 
−
| 1942-01-28
 
−
| Sunk
 
−
| Submarine, USS Grunion
 
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| 1942-07-16
 
−
|
 
−
|}
 
−
{{Sp-end}}
 
−
 
 
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No. 13 and No. 14 took part in a hunt for USS Nautilus (SS-168) in June 1942, damaging the submarine with depth charges and forcing it back to Pearl Harbor for month-long repairs. The No. 27 was likely the last victim of the USS Grunion, before the latter was sunk 4 days later. No. 18 sunk USS Amberjack (SS-219) on 16 February 1943. In October 1943, No. 15 took part in the sinking of submarine USS Wahoo (SS-238). On 14 November 1943, the No. 20 engaged in a gunnery duel with the HMS Taurus (P399), with the submarine hitting the bridge of the chaser with its QF 4-inch Mk IV (102 mm) gun, killing the captain and most of the crew onboard. The ship suffers a number of other hits that eventually flood her engine room forcing the ship to be towed back into the port for repairs. The submarine returned back to the port undamaged, despite No. 20's crew claiming a direct hull hit and dropping a number of depth charges.
 
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08 August 1945 marks the most successful anti-aircraft duty of the class, with the No. 19 damaging six out of fourteen [[B-25 (Family)|B-25]] bombers trying to strafe it in the Tsushima Strait between Japan and South Korea. The ship suffered one bomb hit, but survives the encounter and returns back to the Kure port, about 20 km away from Hiroshima just days after the atomic bombing.
 
  
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Ships of the class also participated in a number of rescue operations, such as No. 17 and No. 18 rescuing of nearly 400 survivors of the bombing of a Naples Maru troop transport or No. 20 rescuing 622 survivors after an attack on a convoy departing from the Musa Bay in the September 1944.
+
The first ship was commissioned on 23 December 1933, numbered No.2 by the Tōkyō Ishikawajima Shipyard, followed 3 days later by No.1 from the Uraga Dock Company. Both ships participated in the events following the Marco Polo Bridge Incident in the 1938. In 1941 ships participated in the Operation M, and for the remaining of the Pacific War they've took part in convoy escorts around the region.
  
−
===22-GO Radar===
+
On 27 June 1945 No.2 was struck by a 533 mm torpedo from the Balao-class submarine USS Blueback. No.1 survived the war meeting end of it in a city of Surabaya on a Philippines island of Java. It eventually was scuttled in the Singapore by the Royal Navy.
−
[[File:22-GO radar.jpg|thumb|left|Two rotating antennas of the 22-GO radar]]
 
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The two rotating devices on top of the conning tower of the Type K-8 are not acoustic listening devices, but rather a radar. Each of the two devices are built of a dipole antenna inside a large, cone-like horn antenna. Its designation is 22-GO (22号電探), also known as Navy Mark 2 Type 2 Radar. Colloquially it was called "Horns" among Americans and "Tuna" among Japanese sailors.
 
−
 
 
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It was designed as a search radar. First test phase was done onboard battleship Hyūga in May 1942, with further testing proceeding onboard Yamato in July 1943. It went through a number of updates, eventually reaching nearly 1,000 units produced by the end of the war. The mass deployment begin in July 1944, eventually reaching most of the Japanese naval units. After the war, radars found their use onboard whaling vessels helping to mitigate the food shortage in the post-war period by ensuring a safe passage of the vessels between the icebergs in the northern seas.
 
−
 
 
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The radar suffered from relatively low accuracy, making it not suitable for fire-control applications. It had an average range error of 160 metres and an average bearing error of 2.26°. It was able to detect battleships at 35 km range, destroyers at 16 km and submarines at 5 km. Testing onboard Yamato also proved that the radar can detect a water column from Yamato's 155 mm secondary cannons from up to 15 km.
 
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{{Clear|left}}
 
  
 
== Media ==
 
== Media ==
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;Skins
 
;Skins
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* [https://live.warthunder.com/feed/camouflages/?vehicle=jp_kusen_tei_13_1944 Skins and camouflages for the {{PAGENAME}} from live.warthunder.com.]
+
* [https://live.warthunder.com/feed/camouflages/?vehicle=jp_no1_ch2 Skins and camouflages for the {{PAGENAME}} from live.warthunder.com.]
  
 
== See also ==
 
== See also ==
Line 252: Line 116:
 
* ''reference to the series of the ship;''
 
* ''reference to the series of the ship;''
 
* ''links to approximate analogues of other nations and research trees.'' -->
 
* ''links to approximate analogues of other nations and research trees.'' -->
−
Ships of comparable role, configuration and era
 
  
−
* [[Type K-7 No.4]] (predecessor)
+
;Ships of comparable role, configuration and era
−
* [[Pr.191M]] (comparable USSR armoured gun boat)
+
* [[SC-497]]
 +
* [[R-301]]
 +
* [[MPK pr.122A]]
 +
* [[HMCS Brantford]]
 +
* [[Type K-7 No.4]]
  
 
== External links ==
 
== External links ==
Line 261: Line 128:
 
* ''topic on the official game forum;''
 
* ''topic on the official game forum;''
 
* ''other literature.'' -->
 
* ''other literature.'' -->
 +
* [[wikipedia:No.1-class submarine chaser|[Wikipedia] No.1-class submarine chaser]]
 +
* [http://www.combinedfleet.com/CH-1_t.htm <nowiki>[Imperial Japanese Navy Page]</nowiki> IJN Subchaser CH-1: Tabular Record of Movement]
 +
* Ships of the World - Escort Vessels of the Imperial Japanese Navy (Special Issue Vol. 45) (世界の艦船 - 日本海軍護衛詳艇史 (増刊第45集條 1996.No.507)) page 66.
  
−
* [[wikipedia:No.13-class_submarine_chaser|[Wikipedia] No.13-class submarine chaser]]
+
{{ShipManufacturer Uraga Dock Company}}
−
* [http://www.combinedfleet.com/CH-13_t.htm <nowiki>[Imperial Japanese Navy Page]</nowiki> IJN Subchaser CH-13: Tabular Record of Movement]
 
−
* Ships of the World - Escort Vessels of the Imperial Japanese Navy (Special Issue Vol. 45) (世界の艦船 - 日本海軍護衛詳艇史 (増刊第45集條 1996.No.507)) pages 70-73
 
−
 
 
−
{{ShipManufacturer Nippon Kokan Co.}}
 
 
{{Japan sub-chasers}}
 
{{Japan sub-chasers}}

Latest revision as of 18:07, 4 November 2024

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Type K-3 No.1
jp_no1_ch2.png
GarageImage Type K-3 No.1.jpg
GarageImage Type K-3 No.1 (2).jpg
Type K-3 No.1

Description

The Japanese Project K3, No.1-class Submarine Chaser No.1 was completed in March 1934 as a part of the Maru 1 Programme. It was the first class of the dedicated Anti-Submarine Warfare vessels in the Imperial Japanese Navy. The major advantage of the vessel was its high speed, while the key issue was a problem with the strength of the hull, which was later addressed in refits, modification of the No.3 subclass before it was built and finally, fully resolved in the No.4-class. She spent most of her service in the southern seas, survived the war without any notable successes, and finally was scuttled by the Royal Navy off Singapore.

The Type K-3 No.1, Kusentei was introduced in Update 1.89 "Imperial Navy". The ship has a powerful and varied combination of weapons, as well as good survivability compared to the other vessels in her BR. Her main disadvantages come from being such a large vessel - she has a low manoeuvrability and is easy to hit with nearly anything, from bombs and rockets to artillery strikes.

General info

Survivability and armour

Relatively well-armoured, large ship with high survivability for its rank. Its major weakness is in being prone to fires. Major strength in a high crew count of 65, one of the largest in its battle rating class (after HMCS Brantford). Weapons are relatively well distributed, making them a difficult targets to take down separately. While the ship itself is large in size, its frontal cross-section is relatively small, making it a tricky target in a hands of a more experienced player. Secondary anti-aircraft armament, while powerful, is centred around sides, making ship most prone to the attacks from a rear. Another potential weak-point are ammunition racks exposed over the water line, however those can be minimized by reducing the ammunition count by half.

Mobility

Type K-3 taking evasive action to avoid incoming torpedoes

While the ship is relatively large it's still characterized with a comparatively high manoeuvrability. While the base speed is 44 km/h, a fully-upgraded setup can reach an impressive maximum speed of 59 km/h. Combined with a Rudder Replacement K-3 can choose engagements even with a number of torpedo boats.

Mobility Characteristics
Game Mode Upgrade Status Maximum Speed (km/h) Turn Time (s) Turn Radius (m)
Forward Reverse
AB Stock ___ ___
Upgraded
RB/SB Stock ___ ___
Upgraded

Modifications and economy

Armament

Primary armament

Manned by two gunners 40 mm Vickers has a horizontal guidance of 180° and vertical -10°/+75°, making it an excellent dual-purpose gun.
Main article: 40 mm/62 Vickers (40 mm)

Primary weapon is a relatively low-shell-speed, high-arcing, high rate of fire dual-barrel 40 mm Vickers autocannon. It's an excellent weapon for relatively quickly dispatching targets within 1.5 km range, where its high rate of fire can be used to correct lead and land number of shots before the need to reload. It's extremely useful against small fast vessels, such as hydrofoil torpedo boats. At range however, the flight time becomes a near-impossible for tracking anything smaller than a sub-chaser. There is, however, one advantage to the gun at >1,500 m range: due to its low shell speed gun will fire at a very high arc, allowing K-3 to be one of a very few ships within its rank capable of reaching enemies hidden behind near-vertical obstacles, making it an excellent weapon to use against various opponents trying to hide behind the islands or other terrain obstacles.

  • Universal: HEF · APHE · HEF · APHE
  • 40 mm HE clips: HEF · HEF · HEF · APHE
  • 40 mm AP clips: APHE · APHE · APHE · HEF- Armour piercing shells, good at damaging interior modules and armoured ships
  • 40 mm HE-TF clips: HE-TF · HE-TF · HE-TF · HE-TF- Time fuse HE shells, effective against both: boats and aircraft, generally superior to the HE clip, unless trying to engage boats at a very long range.

Penetration statistics
Ammunition Penetration @ 0° Angle of Attack (mm)
10 m 100 m 500 m 1,000 m 1,500 m 2,000 m
APHE 36 35 29 22 18 14
HEF 3 3 3 3 3 3
HE-TF 3 3 3 3 3 3
Shell details
Ammunition Velocity
(m/s) 		Projectile
mass (kg) 		Fuse delay
(m) 		Fuse sensitivity
(mm) 		Explosive mass
(TNT equivalent) (g) 		Ricochet
0% 50% 100%
APHE 600 0.78 1 3 23 47° 60° 65°
HEF 600 0.79 0 0.1 70 79° 80° 81°
HE-TF 600 0.79 0 0.1 70 79° 80° 81°

Secondary armament

Rapid firing, single-barrel 25 mm/60 Type 96 is effective against both: naval and airborne targets.
Main article: Type 96 (25 mm)

The Type K-3 No.1 possesses some of the best anti-air armament among Japanese rank 1 ships, making it extremely useful in fending-off enemy ships, even armoured gun boats, and relatively useful against air targets. The only disadvantage is in the guns layout, where at most 2 guns can be firing at a target, due to the fact that two guns amid-ship are pointing in the opposite directions, without any overlapping field of fire.

  • Universal: HEF-T* · HEF · AP-T · HEI
  • 25 mm APT belt: AP-T · AP-T · AP-T · HEF
  • 25 mm HEIT belts: HEF-T* · HEI · HEI · HEI

Penetration statistics
Ammunition Penetration @ 0° Angle of Attack (mm)
10 m 100 m 500 m 1,000 m 1,500 m 2,000 m
HEF-T* 2 2 2 2 2 2
HEI 2 2 2 2 2 2
HEF 2 2 2 2 2 2
AP-T 55 53 43 33 25 19
Shell details
Ammunition Velocity
(m/s) 		Projectile
mass (kg) 		Fuse delay
(m) 		Fuse sensitivity
(mm) 		Explosive mass
(TNT equivalent) (g) 		Ricochet
0% 50% 100%
HEF-T* 900 0.24 0 0.1 8.5 79° 80° 81°
HEI 900 0.26 0 0.1 5.52 79° 80° 81°
HEF 900 0.25 0 0.1 23.93 79° 80° 81°
AP-T 900 0.28 - - - 47° 60° 65°

Additional armament

Main article: Type 95 depth charge

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.

Usage in battles

The K-3 is largely a support ship that excels in one-on-one fights in similar or lower battle ratings, while still being useful in higher-BR battles. It's ill-advised to rush capture points in this ship due to its large size that makes for an attractive target to the enemy team. It's a particularly difficult vessel to play until unlocking fire protection system, as it's extremely easy to ignite and fires will quickly take it down - for that reason when fighting against Type K-3 it's highly recommended to use HE shells on every occasion.

The sub-chaser's primary advantage is in a very narrow hull and an outstanding 40 mm gun. The ship is so narrow in fact that it's near-impossible to hit for a motor torpedo boats when facing bow (front) or stern (rear). On the other hand, its length is one of, if not the longest in BR, being a serious issue when faced with torpedoes or high-rank ships, therefore care should the taken to pre-emptively position oneself when engaging opponents.

The ship is best taken equipped with less than a half of a total ammunition capacity, as it's more than sufficient for a vast majority of battles, while significantly lowers the cross-section of the unarmoured ammunition racks that are prone to explosions. Also ignoring depth charges is recommended due to their extremely limited usefulness while adding mass and risk of explosion to the ship.

It's generally good to have at least some HE-TF ammunition onboard, as with a rapid fire of the 40 mm Vickers it can dispatch a field of flak fire very effectively destroying enemy bombers and fighters, or at least scaring them off. Within Rank 1 battles 40 mm HE clips are a better choice than the Universal or SAP, as none of the targets will have enough armour to resist them even at 2,000 m, while additional explosive power increases the speed in which enemies can be destroyed. Primary gun is positioned at the front of the vessel, making it possible to peek from cover and shoot, without exposing much of a vessel. High firing arc makes it possible to shoot from behind cover of a small islands and to attack enemies inaccessible to the ships with higher shell speed.

Both K-3 and K-7 have a relatively undefended rear arc, where at most only one 20 mm anti-aircraft gun can shoot back.

Pros and cons

Pros:

  • Effective 40 mm twin cannon with high firing arc and rapid fire
  • Secondary armament is very powerful against small ships and unsuspecting bombers
  • Decent anti-aircraft artillery for its battle rating
  • Decent speed
  • Possesses one of the highest crew count in its rank
  • HE-TF rounds are very useful against enemy vessels in close quarter battles

Cons:

  • Low manoeuvrability
  • Large target
  • Primary armament is not very effective against larger, well-armoured ships
  • Low shell speed makes for a challenging gameplay when up-tiered

History

The No.1-class submarine chasers (第一号型駆潜艇, Dai 1 Gō-gata Kusentei) were built under Maru 1 Keikaku programme, totalling 2 ships built in 1933. Vessels suffered from stability and hull strength issues that were resolved in a later redesign that became the No.4. The ship is a flush deck design with a relatively high freeboard for its size and an unproportionally large bridge. Ship's waterline length was 64 m, width 5.6 m for a total displacement of 383 tonnes. Crew consisted of 53 sailors, with up to 65 capacity.

Designers considered one of two primary guns against surfaced submarines: Either 8 cm/40 3rd Year Type naval gun or Type Bi-4 cm autocannon, which they've eventually picked for the final design. Both proposed guns were built domestically in Japan on a license. Additionally armament featured two imported Lewis light machine guns with the third one added during the war. Ships were equipped with 36 depth charges released overboard (projectors were added in the No.4). Additional equipment included Type 91 sonar, Type MV hydrophone, 6m motor boat and a 6m cutter, 60 mm search and signal light and an additional 30 mm search light.

The first ship was commissioned on 23 December 1933, numbered No.2 by the Tōkyō Ishikawajima Shipyard, followed 3 days later by No.1 from the Uraga Dock Company. Both ships participated in the events following the Marco Polo Bridge Incident in the 1938. In 1941 ships participated in the Operation M, and for the remaining of the Pacific War they've took part in convoy escorts around the region.

On 27 June 1945 No.2 was struck by a 533 mm torpedo from the Balao-class submarine USS Blueback. No.1 survived the war meeting end of it in a city of Surabaya on a Philippines island of Java. It eventually was scuttled in the Singapore by the Royal Navy.

Media

Skins

See also

Ships of comparable role, configuration and era

External links


Uraga Dock Company (浦賀船渠株式会社)
Sub Chasers (駆潜艇) 
No.1 Type  Type K-3 No.1
Destroyers (DD) 
Hatsuharu-class  IJN Nenohi
Yugumo-class  IJN Kiyoshimo
Light Cruisers (CL) 
Nagara-class  IJN Isuzu

Japan sub-chasers
Type 5 · Type K-3 No.1 · Type K-7 No.4 · Type K-8 No.13 · Type K-8 No.13 late

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