Difference between revisions of "PTF-7"

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{{Specs-Card
 
{{Specs-Card
 
|code=us_nasty_ptf
 
|code=us_nasty_ptf
−
|images={{Specs-Card-Image|GarageImage_{{PAGENAME}}.jpg}}
+
|images={{Specs-Card-Image|GarageImage_{{PAGENAME}}.jpg|ArtImage_{{PAGENAME}}.png}}
 
}}
 
}}
  
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{{Specs-Fleet-Mobility}}
 
{{Specs-Fleet-Mobility}}
 
<!-- ''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.'' -->
 
<!-- ''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.'' -->
−
Fully upgraded the boat has decent turning capabilities. Its speed when fully upgraded matches that of similar class torpedo boats.
+
Fully upgraded, the boat has decent turning capabilities. Its speed when fully upgraded matches that of similar class torpedo boats.
  
 
{{NavalMobility}}
 
{{NavalMobility}}
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| colspan="2" | 450
 
| colspan="2" | 450
 
|}
 
|}
 +
 +
* '''Universal:''' {{Annotation|HEF-T|High-explosive fragmentation tracer}}{{-}}{{Annotation|HEF-I|High-explosive fragmentation incendiary}}{{-}}{{Annotation|AP-T|Armour-piercing tracer}}
 +
* '''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}}
 +
* '''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}}
 +
 +
{{:20 mm/70 Oerlikon Mk.II (20 mm)/Ammunition|HEF-T, AP-T, HEF-I}}
  
 
The single 12.7 mm AN-M2 machine gun is located in front of the bridge. The location does mean that it has a blind spot to the rear of the boat. Ammunition is only available in the default load.
 
The single 12.7 mm AN-M2 machine gun is located in front of the bridge. The location does mean that it has a blind spot to the rear of the boat. Ammunition is only available in the default load.
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! Vertical Guidance || Horizontal Guidance || Vertical Targeting Speed || Horizontal Targeting Speed || Ammo Capacity (Belt Capacity) || Rate of Fire (Rounds/Min)
 
! Vertical Guidance || Horizontal Guidance || Vertical Targeting Speed || Horizontal Targeting Speed || Ammo Capacity (Belt Capacity) || Rate of Fire (Rounds/Min)
 
|-
 
|-
−
| -5°/+40° || ±155° || 70°/s || 60°/s || 4000 (500) || 576
+
| -5°/+40° || ±155° || 70°/s || 60°/s || 4,000 (500) || 576
 
|-
 
|-
 
|}
 
|}
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{{main|Bofors L/60 Mark 3 (40 mm)}}
 
{{main|Bofors L/60 Mark 3 (40 mm)}}
  
−
The 40 mm cannon is located mid-ship facing aft. This provides it with an excellent field of fire to the rear but means a blind spot to the front of the boat. Ammunition is available in Universal, HE, and AP.
+
The 40 mm cannon is located mid-ship, facing aft. This provides it with an excellent field of fire to the rear, but means a blind spot to the front of the boat. Ammunition is available in Universal, HE, and AP.
  
 
{| class="wikitable" style="text-align:center"
 
{| class="wikitable" style="text-align:center"
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! Vertical Guidance || Horizontal Guidance || Vertical Targeting Speed || Horizontal Targeting Speed || Ammo Capacity (Belt Capacity) || Rate of Fire (Rounds/Min)
 
! Vertical Guidance || Horizontal Guidance || Vertical Targeting Speed || Horizontal Targeting Speed || Ammo Capacity (Belt Capacity) || Rate of Fire (Rounds/Min)
 
|-
 
|-
−
| -6°/+87° || ±180° || 30°/s || 24°/s || 2000 (500) || 160
+
| -6°/+87° || ±180° || 30°/s || 24°/s || 2,000 (500) || 160
 
|-
 
|-
 
|}
 
|}
 +
 +
* '''Universal:''' {{Annotation|AP-T|Armour-piercing tracer}}{{-}}{{Annotation|HEFI-T|High-explosive fragmentation incendiary tracer}}
 +
* '''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 fragmentation incendiary tracer}}
 +
* '''40 mm HE clips:''' {{Annotation|HEFI-T|High-explosive fragmentation incendiary tracer}}{{-}}{{Annotation|HEFI-T|High-explosive fragmentation incendiary tracer}}{{-}}{{Annotation|HEFI-T|High-explosive fragmentation incendiary tracer}}{{-}}{{Annotation|AP-T|Armour-piercing tracer}}
 +
 +
{{:Bofors L/60 Mark 3 (40 mm)/Ammunition|HEFI-T, AP-T}}
  
 
=== Anti-aircraft armament ===
 
=== Anti-aircraft 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).'' -->
  
−
The 80 ft Nasty gives the captain a versatile ship that can pack a punch for it's Battle Rating, and proves to be highly capable in the hands of a skilled captain even against higher-ranked vessels. Exploiting the strengths of the Nasty and mitigating the weaknesses can make it an impressive ally as well as a fearsome opponent.
+
The 80 ft Nasty gives the captain a versatile ship that can pack a punch for its battle rating, and proves to be highly capable in the hands of a skilled captain even against higher-ranked vessels. Exploiting the strengths of the Nasty and mitigating the weaknesses can make it an impressive ally as well as a fearsome opponent.
  
 
;Exploiting Strengths
 
;Exploiting Strengths
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The 80 ft Nasty has a rather high speed, topping out at 112 km/h (~60 knots) in Arcade Battles and 83 km/h (~45 knots) in Realistic when fully upgraded. Only a small handful of other ships can match or exceed this, and they typically cannot match the armament that the 80 ft Nasty has (such as the {{Specs-Link|ussr_pr_123bis}}). This allows the 80 ft Nasty to easily get around the battlefield to carry out an abundance of tasks, anywhere from capturing points, rushing down weaker vessels, harassing larger or more powerful ships, as well as supporting teammates. While staying stationary and hiding in wait for a strike can be a viable tactic, using the speed of the 80 ft Nasty can give excellent results and support the team by being more dynamic.
 
The 80 ft Nasty has a rather high speed, topping out at 112 km/h (~60 knots) in Arcade Battles and 83 km/h (~45 knots) in Realistic when fully upgraded. Only a small handful of other ships can match or exceed this, and they typically cannot match the armament that the 80 ft Nasty has (such as the {{Specs-Link|ussr_pr_123bis}}). This allows the 80 ft Nasty to easily get around the battlefield to carry out an abundance of tasks, anywhere from capturing points, rushing down weaker vessels, harassing larger or more powerful ships, as well as supporting teammates. While staying stationary and hiding in wait for a strike can be a viable tactic, using the speed of the 80 ft Nasty can give excellent results and support the team by being more dynamic.
  
−
Another major strength of the 80 ft Nasty is the powerful armament carried on board. Frontally, it is capable of bringing two 20 mm Oerlikon cannons on target which can easily rip through smaller boats in a quick manner. The cannon shells can penetrate through the basic armour profiles of ships at similar Battle Ratings and the high explosive component can devastate the interiors and crew of hostile vehicles. However, the true strength of the 80 ft Nasty is the 40 mm Bofors cannon mounted behind the bridge. Turning to use this weapon can massively boost the offensive firepower and allows the 80 ft Nasty to defeat weaker opponents with relative ease as well as stronger opponents with some skill and tactics. The high explosive shells obliterate ships with little or no armour, and the armour-piercing shells provide the 80 ft Nasty with the ability to tear through even the Soviet armoured gunboats, such as the {{Specs-Link|ussr_bmo}} and {{Specs-Link|ussr_1124_ack}}. Enemy aircraft can also be dealt with using both the Oerlikons and the Bofors cannons, so make sure to assist in clearing the skies when necessary.
+
Another major strength of the 80 ft Nasty is the powerful armament carried on board. Frontally, it is capable of bringing two 20 mm Oerlikon cannons on target which can easily rip through smaller boats in a quick manner. The cannon shells can penetrate through the basic armour profiles of ships at similar Battle Ratings, and the high explosive component can devastate the interiors and crew of hostile vehicles. However, the true strength of the 80 ft Nasty is the 40 mm Bofors cannon mounted behind the bridge. Turning to use this weapon can massively boost the offensive firepower and allows the 80 ft Nasty to defeat weaker opponents with relative ease as well as stronger opponents with some skill and tactics. The high explosive shells obliterate ships with little or no armour, and the armour-piercing shells provide the 80 ft Nasty with the ability to tear through even the Soviet armoured gunboats, such as the {{Specs-Link|ussr_bmo}} and {{Specs-Link|ussr_1124_ack}}. Enemy aircraft can also be dealt with using both the Oerlikons and the Bofors cannons, so make sure to assist in clearing the skies when necessary.
  
 
;Mitigating Weaknesses
 
;Mitigating Weaknesses
  
−
A significant weakness of the 80 ft Nasty is the lack of torpedo armament. When caught in the middle of multiple opponents or attempting to scare off potential threats, there is little that can be done. Torpedoes give a distraction to enemies and can potentially erase them from the map, but without them, it is crucial to maintain awareness and not dive too deep into enemy territory. The 40 mm Bofors do provide capabilities against heavily armoured ships, but time is needed to take them down and too many at once is quickly overwhelming. When using the 20 mm Oerlikons it is important to note that it takes several seconds to reload, which can be a way to quickly sink in combat if not timed properly. Combined with the fact that the 80 ft Nasty is relatively large compared to other ships in the range of its Battle Rating and pushes out into open waters can quickly become a death sentence. Using the terrain and cover wisely is a helpful skill to learn in order to survive.
+
A significant weakness of the 80 ft Nasty is the lack of torpedo armament. When caught in the middle of multiple opponents or attempting to scare off potential threats, there is little that can be done. Torpedoes give a distraction to enemies and can potentially erase them from the map, but without them, it is crucial to maintain awareness and not dive too deep into enemy territory. The 40 mm Bofors do provide capabilities against heavily armoured ships, but time is needed to take them down, and too many at once is quickly overwhelming. The 20 mm Oerlikons take several seconds to reload, which can be a way to quickly sink in combat if not timed properly. Combined with the fact that the 80 ft Nasty is relatively large compared to other ships in the range of its battle rating and pushes out into open waters can quickly become a death sentence. Using the terrain and cover wisely is a helpful skill to learn in order to survive.
  
 
=== Pros and cons ===
 
=== Pros and cons ===
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* Highly destructive 40 mm Bofors against small craft, that could also prove competent against larger vessels to a degree
 
* Highly destructive 40 mm Bofors against small craft, that could also prove competent against larger vessels to a degree
 
* Combined Bofors and Oerlikon cannons provide an effective anti-aircraft armament
 
* Combined Bofors and Oerlikon cannons provide an effective anti-aircraft armament
−
* Can exchange the .50 cal AN-M2 machine gun for an effective 81mm mortar which, if aimed correctly can cripple most ships in its BR range
+
* Can exchange the .50 cal AN-M2 machine gun for an effective 81 mm mortar which, if aimed correctly, can cripple most ships in its BR range
  
 
'''Cons:'''
 
'''Cons:'''
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* Inability to use all armaments at once, due to 40 mm Bofors being located on the aft end of the ship
 
* Inability to use all armaments at once, due to 40 mm Bofors being located on the aft end of the ship
 
* Lengthy reload time for the 20 mm Oerlikons can be detrimental in the middle of a fight
 
* Lengthy reload time for the 20 mm Oerlikons can be detrimental in the middle of a fight
−
* The 81mm Mk 2 mortar is, considered "anti-aircraft armament" this makes combat quite difficult as the AI gunners aren't particually good at aiming with any of the weapons so the player must decide whether they prefer rate of fire (20mm), consistant damage output (40mm) or pure damage (81mm). This leads to complicated engagements as the Nasty's firepower will often be split up and focus on different targets instead of a single one. However, this can be mitigated by assigning the same target(s) to the 3 weapon groups.
+
* The 81 mm Mk 2 mortar is, considered "anti-aircraft armament" this makes combat quite difficult as the AI gunners aren't particularly good at aiming with any of the weapons so the player must decide whether they prefer rate of fire (20 mm), consistant damage output (40 mm) or pure damage (81 mm). This leads to complicated engagements, as the Nasty's firepower will often be split up and focus on different targets instead of a single one. However, this can be mitigated by assigning the same target(s) to the 3 weapon groups
  
 
== 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).'' -->
  
−
The '''Nasty-class''' of patrol boats was originally the work of a private venture in Norway as an attempt to build the best possible patrol craft featuring all of the best attributes of those from World War II. The first prototype was built in 1957 for the Royal Norwegian Navy and tests were shown to be successful.<ref name="PTFNasty1" /> The Nasty used a sleek wooden hull combined with two Napier Deltic engines, each providing 3,100 HP, for a speed of over 74 km/h (40 knots). It was designed to accommodate a range of weaponry for any role.
+
The '''Nasty-class''' of patrol boats was originally the work of a private venture in Norway as an attempt to build the best possible patrol craft featuring all the best attributes of those from World War II. The first prototype was built in 1957 for the Royal Norwegian Navy and tests were shown to be successful.<ref name="PTFNasty1" /> The Nasty used a sleek wooden hull combined with two Napier Deltic engines, each providing 3,100 HP, for a speed of over 74 km/h (40 knots). It was designed to accommodate a range of weaponry for any role.
  
−
With the escalation of the war in Vietnam, the United States saw a need for new patrol boats as nearly all of the ones from World War II had been scrapped or were unusable. Several countries made contracts with the Westermoen shipyard in Norway to construct Nasty-class patrol boats and the United States purchased 14 of them which were delivered in 1964. An agreement was also made for six to be built under license at a shipyard in Annapolis, with those being delivered in 1967.<ref name="PTFNasty2" /> These were all put into service as they were acquired, being employed in South Vietnam and designated Fast Patrol Craft (PTF). A few of the Nasty-class boats (PTF-7 included) were used to train South Vietnamese Navy crews and given to them for a period of four years but were all returned to American service in 1970. During the war, the Nasty PTFs were used for shore bombardment and secret mission by special forces units along the coast. Out of the 20 total built, 6 were lost in action. After the end of the war, the Nasty boats were used sparingly, as the maintenance costs were high and they were all eventually decommissioned by the end of the 1970s with many were scrapped. A small few likely remain in existence, although many are merely hulks which have been stripped of all equipment and are in poor condition.
+
With the escalation of the war in Vietnam, the United States saw a need for new patrol boats, as nearly all the ones from World War II had been scrapped or were unusable. Several countries made contracts with the Westermoen shipyard in Norway to construct Nasty-class patrol boats and the United States purchased 14 of them which were delivered in 1964. An agreement was also made for six to be built under licence at a shipyard in Annapolis, with those being delivered in 1967.<ref name="PTFNasty2" /> These were all put into service as they were acquired, being employed in South Vietnam and designated Fast Patrol Craft (PTF). A few of the Nasty-class boats (PTF-7 included) were used to train South Vietnamese Navy crews and given to them for a period of four years, but were all returned to American service in 1970. During the war, the Nasty PTFs were used for shore bombardment and secret mission by special forces units along the coast. Out of the 20 total built, 6 were lost in action. After the end of the war, the Nasty boats were used sparingly, as the maintenance costs were high, and they were all eventually decommissioned by the end of the 1970s with many were scrapped. A small few likely remain in existence, although many are merely hulks which have been stripped of all equipment and are in poor condition.
  
 
== Media ==
 
== Media ==
 
<!-- ''Excellent additions to the article would be video guides, screenshots from the game, and photos.'' -->
 
<!-- ''Excellent additions to the article would be video guides, screenshots from the game, and photos.'' -->
 +
 +
;Skins
 +
 +
* [https://live.warthunder.com/feed/camouflages/?vehicle=us_nasty_ptf Skins and camouflages for the {{PAGENAME}} from live.warthunder.com.]
  
 
;Videos
 
;Videos
Line 167: Line 183:
 
<!-- ''Paste links to sources and external resources, such as:''
 
<!-- ''Paste links to sources and external resources, such as:''
 
* ''topic on the official game forum;''
 
* ''topic on the official game forum;''
−
* ''encyclopedia page on the ship;''
 
 
* ''other literature.'' -->
 
* ''other literature.'' -->
  
−
* [[Wikipedia:United_States_Nasty-class_patrol_boat|[Wikipedia] United States Nasty-class patrol boat]]
 
 
* [http://www.ptfnasty.com/index.htm [PTFNasty.com<nowiki>]</nowiki> The "Nasty Class" Fighting Boats]
 
* [http://www.ptfnasty.com/index.htm [PTFNasty.com<nowiki>]</nowiki> The "Nasty Class" Fighting Boats]
 
* [http://www.ptfnasty.com/gallery/galPtf7.htm [PTFNasty.com<nowiki>]</nowiki> Gallery of PTF-7]
 
* [http://www.ptfnasty.com/gallery/galPtf7.htm [PTFNasty.com<nowiki>]</nowiki> Gallery of PTF-7]

Latest revision as of 18:44, 7 May 2023

PTF-7
us_nasty_ptf.png
GarageImage PTF-7.jpg
ArtImage PTF-7.png
PTF-7
USA flag.png USA
I Rank
Battle rating:
AB RB SB
1.7 1.7 1.7
Class:
Research:4 000 Specs-Card-Exp.png
Purchase:2 100 Specs-Card-Lion.png
Show in game

Description

The 80 ft Nasty PTF-7 is a rank I American motor gunboat with a battle rating of 1.7 (AB/RB/SB). It was introduced in Update 1.79 "Project X" as part of the fleet closed beta test.

General info

Survivability and armour

Armourfront / side / back
Hull30 mm (wood)
Superstructure15 mm (wood)
Number of section3
Displacement68 t
Crew21 people

This boat's only armour is located at the 2 x 20 mm turrets. It consists of two 12.7 mm plates sloped at 8 degrees. Ammunition for these guns are located below the waterline and forward of the bridge. The rear of the contains the boat's two engines.

Mobility

Speedforward / back
AB112 / 36 km/h
RB83 / 27 km/h

Fully upgraded, the boat has decent turning capabilities. Its speed when fully upgraded matches that of similar class torpedo boats.

Mobility Characteristics
Game Mode Upgrade Status Maximum Speed (km/h) Turn Time (s) Turn Radius (m)
Forward Reverse
AB Stock ___ ___
Upgraded 112 36
RB/SB Stock ___ ___
Upgraded 83 27

Modifications and economy

Repair costBasic → Reference
AB198 → 261 Sl icon.png
RB297 → 391 Sl icon.png
Total cost of modifications4 450 Rp icon.png
2 710 Sl icon.png
Talisman cost300 Ge icon.png
Crew training600 Sl icon.png
Experts2 100 Sl icon.png
Aces45 Ge icon.png
Research Aces110 000 Rp icon.png
Reward for battleAB / RB / SB
20 / 30 / 100 % Sl icon.png
100 / 100 / 100 % Rp icon.png
Modifications
Seakeeping Unsinkability Firepower
Mods new ship hull.png
Dry-Docking
Research:
180 Rp icon.png
Cost:
110 Sl icon.png
45 Ge icon.png
Mods new ship rudder.png
Rudder Replacement
Research:
165 Rp icon.png
Cost:
100 Sl icon.png
45 Ge icon.png
Mods new ship screw.png
Propeller Replacement
Research:
560 Rp icon.png
Cost:
340 Sl icon.png
145 Ge icon.png
Mods new ship engine.png
Engine Maintenance
Research:
360 Rp icon.png
Cost:
220 Sl icon.png
95 Ge icon.png
Mods ship damage control crew.png
Damage Control Division
Research:
180 Rp icon.png
Cost:
110 Sl icon.png
45 Ge icon.png
Mods ship fire control crew.png
Fire Division
Research:
165 Rp icon.png
Cost:
100 Sl icon.png
45 Ge icon.png
Mods engine smoke screen system.png
Smokescreen
Research:
165 Rp icon.png
Cost:
100 Sl icon.png
45 Ge icon.png
Mods new ship pumps.png
New Pumps
Research:
360 Rp icon.png
Cost:
220 Sl icon.png
95 Ge icon.png
Mods new aa caliber turrets.png
Anti-Air Armament Targeting
Research:
180 Rp icon.png
Cost:
110 Sl icon.png
45 Ge icon.png
Mods ammo.png
20 mm HE magazines
Research:
180 Rp icon.png
Cost:
110 Sl icon.png
45 Ge icon.png
Mods ammo.png
40 mm HE clips
Research:
180 Rp icon.png
Cost:
110 Sl icon.png
45 Ge icon.png
Mods new aux caliber turrets.png
Auxiliary Armament Targeting
Research:
165 Rp icon.png
Cost:
100 Sl icon.png
45 Ge icon.png
Mods ammo.png
20 mm AP magazines
Research:
165 Rp icon.png
Cost:
100 Sl icon.png
45 Ge icon.png
Mods ammo.png
40 mm AP clips
Research:
165 Rp icon.png
Cost:
100 Sl icon.png
45 Ge icon.png
Mods new main caliber turrets.png
Primary Armament Targeting
Research:
560 Rp icon.png
Cost:
340 Sl icon.png
145 Ge icon.png
Mods ship art support.png
Artillery Support
Research:
360 Rp icon.png
Cost:
220 Sl icon.png
95 Ge icon.png
Mods cannon.png
Mortar
Research:
360 Rp icon.png
Cost:
220 Sl icon.png
95 Ge icon.png

Armament

Primary armament

2 х Turret20 mm/70 Oerlikon Mk.II autocannon
Ammunition1800 rounds
Belt capacity60 rounds
Fire rate450 shots/min
Vertical guidance-5° / 60°
Turret12.7 mm Browning AN-M2 machine gun
Ammunition2000 rounds
Belt capacity200 rounds
Fire rate577 shots/min
Vertical guidance-5° / 40°
Main articles: 20 mm/70 Oerlikon Mk.II (20 mm), AN-M2 (12.7 mm)

The 2 x 20 mm Oerlikon Mk.II cannons are located on either side of the bridge. They provide a cone of overlapping fire of approx 45 degrees to the front and rear of the boat. Ammunition is available in Universal, HE, and AP.

20 mm Oerlikon Mk.II (x2)
Turrets (Bow to stern)
Port turret (x1) Starboard turret (x1)
Vertical guidance -5°/+60° -5°/+60°
Horizontal guidance -180°/+10° -10°/+180°
Vertical targeting speed 75°/s
Horizontal targeting speed 75°/s
Ammo capacity (Belt capacity) 2,160 (60)
Rounds per turret 1,080
Rate of Fire (Rounds/min) 450
  • Universal: HEF-T · HEF-I · AP-T
  • 20 mm HE: HEF-T · HEF-I · AP-T · HEF-I
  • 20 mm AP: AP-T · AP-T · AP-T · HEF-I

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
AP-T 34 32 24 17 12 8
HEF-I 2 2 2 2 2 2
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 830 0.12 0 0.1 6.57 79° 80° 81°
AP-T 830 0.12 - - - 47° 60° 65°
HEF-I 830 0.12 0 0.1 11.17 79° 80° 81°

The single 12.7 mm AN-M2 machine gun is located in front of the bridge. The location does mean that it has a blind spot to the rear of the boat. Ammunition is only available in the default load.

12.7 mm AN-M2 (x1)
Vertical Guidance Horizontal Guidance Vertical Targeting Speed Horizontal Targeting Speed Ammo Capacity (Belt Capacity) Rate of Fire (Rounds/Min)
-5°/+40° ±155° 70°/s 60°/s 4,000 (500) 576

Secondary armament

Turret40 mm Bofors L/60 Mark 3 gun
Ammunition2000 rounds
Belt capacity4 rounds
Fire rate160 shots/min
Main article: Bofors L/60 Mark 3 (40 mm)

The 40 mm cannon is located mid-ship, facing aft. This provides it with an excellent field of fire to the rear, but means a blind spot to the front of the boat. Ammunition is available in Universal, HE, and AP.

40 mm Bofors L/60 Mark 3 (x1)
Vertical Guidance Horizontal Guidance Vertical Targeting Speed Horizontal Targeting Speed Ammo Capacity (Belt Capacity) Rate of Fire (Rounds/Min)
-6°/+87° ±180° 30°/s 24°/s 2,000 (500) 160
  • Universal: AP-T · HEFI-T
  • 40 mm AP clips: AP-T · AP-T · AP-T · HEFI-T
  • 40 mm HE clips: HEFI-T · HEFI-T · HEFI-T · AP-T

Penetration statistics
Ammunition Penetration @ 0° Angle of Attack (mm)
10 m 100 m 500 m 1,000 m 1,500 m 2,000 m
HEFI-T 3 3 3 3 3 3
AP-T 81 78 68 58 49 41
Shell details
Ammunition Velocity
(m/s) 		Projectile
mass (kg) 		Fuse delay
(m) 		Fuse sensitivity
(mm) 		Explosive mass
(TNT equivalent) (g) 		Ricochet
0% 50% 100%
HEFI-T 874 0.9 0 0.1 67.13 79° 80° 81°
AP-T 874 0.89 - - - 47° 60° 65°

Anti-aircraft armament

Main article: Mk 2 mortar

The 81 mm mortar is available once researched and fires HE ammunition. Once installed, the mortar will take the place of the 12.7 mm machine gun on the front gun emplacement.

81 mm Mk 2 Mortar (x1)
Vertical Guidance Horizontal Guidance Vertical Targeting Speed Horizontal Targeting Speed Ammo Capacity (Belt Capacity) Rate of Fire (Rounds/Min)
-5°/+40° ±155° 45°/s 20°/s 100 (N/A) 18

Usage in battles

The 80 ft Nasty gives the captain a versatile ship that can pack a punch for its battle rating, and proves to be highly capable in the hands of a skilled captain even against higher-ranked vessels. Exploiting the strengths of the Nasty and mitigating the weaknesses can make it an impressive ally as well as a fearsome opponent.

Exploiting Strengths

The 80 ft Nasty has a rather high speed, topping out at 112 km/h (~60 knots) in Arcade Battles and 83 km/h (~45 knots) in Realistic when fully upgraded. Only a small handful of other ships can match or exceed this, and they typically cannot match the armament that the 80 ft Nasty has (such as the Pr.123-bis). This allows the 80 ft Nasty to easily get around the battlefield to carry out an abundance of tasks, anywhere from capturing points, rushing down weaker vessels, harassing larger or more powerful ships, as well as supporting teammates. While staying stationary and hiding in wait for a strike can be a viable tactic, using the speed of the 80 ft Nasty can give excellent results and support the team by being more dynamic.

Another major strength of the 80 ft Nasty is the powerful armament carried on board. Frontally, it is capable of bringing two 20 mm Oerlikon cannons on target which can easily rip through smaller boats in a quick manner. The cannon shells can penetrate through the basic armour profiles of ships at similar Battle Ratings, and the high explosive component can devastate the interiors and crew of hostile vehicles. However, the true strength of the 80 ft Nasty is the 40 mm Bofors cannon mounted behind the bridge. Turning to use this weapon can massively boost the offensive firepower and allows the 80 ft Nasty to defeat weaker opponents with relative ease as well as stronger opponents with some skill and tactics. The high explosive shells obliterate ships with little or no armour, and the armour-piercing shells provide the 80 ft Nasty with the ability to tear through even the Soviet armoured gunboats, such as the BMO and Pr.1124 late. Enemy aircraft can also be dealt with using both the Oerlikons and the Bofors cannons, so make sure to assist in clearing the skies when necessary.

Mitigating Weaknesses

A significant weakness of the 80 ft Nasty is the lack of torpedo armament. When caught in the middle of multiple opponents or attempting to scare off potential threats, there is little that can be done. Torpedoes give a distraction to enemies and can potentially erase them from the map, but without them, it is crucial to maintain awareness and not dive too deep into enemy territory. The 40 mm Bofors do provide capabilities against heavily armoured ships, but time is needed to take them down, and too many at once is quickly overwhelming. The 20 mm Oerlikons take several seconds to reload, which can be a way to quickly sink in combat if not timed properly. Combined with the fact that the 80 ft Nasty is relatively large compared to other ships in the range of its battle rating and pushes out into open waters can quickly become a death sentence. Using the terrain and cover wisely is a helpful skill to learn in order to survive.

Pros and cons

Pros:

  • High speed, giving the ability to re-position and engage targets at will
  • Effective 20 mm Oerlikon cannons against other small craft
  • Highly destructive 40 mm Bofors against small craft, that could also prove competent against larger vessels to a degree
  • Combined Bofors and Oerlikon cannons provide an effective anti-aircraft armament
  • Can exchange the .50 cal AN-M2 machine gun for an effective 81 mm mortar which, if aimed correctly, can cripple most ships in its BR range

Cons:

  • Lack of torpedo armament makes attacks against larger vessels exceedingly dangerous
  • Large size makes it an easy target, and lack of any hull armour means low survivability
  • Inability to use all armaments at once, due to 40 mm Bofors being located on the aft end of the ship
  • Lengthy reload time for the 20 mm Oerlikons can be detrimental in the middle of a fight
  • The 81 mm Mk 2 mortar is, considered "anti-aircraft armament" this makes combat quite difficult as the AI gunners aren't particularly good at aiming with any of the weapons so the player must decide whether they prefer rate of fire (20 mm), consistant damage output (40 mm) or pure damage (81 mm). This leads to complicated engagements, as the Nasty's firepower will often be split up and focus on different targets instead of a single one. However, this can be mitigated by assigning the same target(s) to the 3 weapon groups

History

The Nasty-class of patrol boats was originally the work of a private venture in Norway as an attempt to build the best possible patrol craft featuring all the best attributes of those from World War II. The first prototype was built in 1957 for the Royal Norwegian Navy and tests were shown to be successful.[1] The Nasty used a sleek wooden hull combined with two Napier Deltic engines, each providing 3,100 HP, for a speed of over 74 km/h (40 knots). It was designed to accommodate a range of weaponry for any role.

With the escalation of the war in Vietnam, the United States saw a need for new patrol boats, as nearly all the ones from World War II had been scrapped or were unusable. Several countries made contracts with the Westermoen shipyard in Norway to construct Nasty-class patrol boats and the United States purchased 14 of them which were delivered in 1964. An agreement was also made for six to be built under licence at a shipyard in Annapolis, with those being delivered in 1967.[2] These were all put into service as they were acquired, being employed in South Vietnam and designated Fast Patrol Craft (PTF). A few of the Nasty-class boats (PTF-7 included) were used to train South Vietnamese Navy crews and given to them for a period of four years, but were all returned to American service in 1970. During the war, the Nasty PTFs were used for shore bombardment and secret mission by special forces units along the coast. Out of the 20 total built, 6 were lost in action. After the end of the war, the Nasty boats were used sparingly, as the maintenance costs were high, and they were all eventually decommissioned by the end of the 1970s with many were scrapped. A small few likely remain in existence, although many are merely hulks which have been stripped of all equipment and are in poor condition.

Media

Skins
Videos
Best Combo #3 discusses the PTF-7 at 0:38 - War Thunder Official Channel

See also

  • MGB-61: The MGB-61 has a somewhat similar arrangement of weapons, with a 40 mm Rolls Royce semi-automatic cannon on the rear along with two twin 12.7 mm machine guns
  • Type 4 (mod. 2): The Type 4 Model 2 also has a similar offensive suite, with a quick firing 37 mm cannon and a 20 mm autocannon

External links

References

  1. ↑ Dan Withers, "History," The "Nasty Class" Fighting Boats, Last Modified June 1, 2013, http://www.ptfnasty.com/ptfHistory.html.
  2. ↑ Ibid.


A/S Westermoen Båtbyggeri og Mek Verksted
Patrol Boats 
Patrol Craft Fast (PTF)  PTF-7
Schnellboot Type 152  Hugin

USA boats
Motor torpedo boats  PT-3 · PT-6 · PT-20 · PT-71 · PT-103 · PT-109 · PT-174
  PT-200 · PT-314 · Thunderbolt (PT-556) · PT-565 · PT-658 · PT-810 · PT-811 · PT-812
Motor gun boats  Kim Qui · LCS(L)(3) · PT-59 · PTF-7 · USS Candid · USS Asheville · USS Douglas · USS Flagstaff · USS Tucumcari · USS Cyclone
Armoured gun boats  LCM(6) Zippo

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