Difference between revisions of "PT-71"

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{{Specs-Card|code=us_higgins_78ft_pt71}}
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{{Specs-Card
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|code=us_higgins_78ft_pt71
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|images={{Specs-Card-Image|GarageImage_{{PAGENAME}}.jpg}}
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== Description ==
 
== Description ==
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== General info ==
 
== General info ==
 
=== Survivability and armour ===
 
=== Survivability and armour ===
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{{Specs-Fleet-Armour}}
 
<!-- ''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.'' -->
 
<!-- ''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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=== Mobility ===
 
=== Mobility ===
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{{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.'' -->
  
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The {{PAGENAME}} is a very mobile ship and boasts an excellent speed of 74 kph, able to keep up with all but the fastest of Russian MTBs. The {{PAGENAME}} has a displacement of 49 tons.
 
The {{PAGENAME}} is a very mobile ship and boasts an excellent speed of 74 kph, able to keep up with all but the fastest of Russian MTBs. The {{PAGENAME}} has a displacement of 49 tons.
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=== Modifications and economy ===
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{{Specs-Economy}}
  
 
== Armament ==
 
== Armament ==
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{{Specs-Fleet-Armaments}}
 
=== Primary armament ===
 
=== Primary armament ===
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{{Specs-Fleet-Primary}}
 
<!-- ''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.'' -->
 
{{main|AN-M2 (12.7 mm)}}
 
{{main|AN-M2 (12.7 mm)}}
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=== Secondary armament ===
 
=== Secondary armament ===
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{{Specs-Fleet-Secondary}}
 
{{main|20 mm/70 Oerlikon Mk.II (20 mm)}}
 
{{main|20 mm/70 Oerlikon Mk.II (20 mm)}}
 
<!--''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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Torpedoes are not particularly useful at the PT-71's BR. They should only be used to against slow moving gunboats or spammed towards commonly traveled chokepoints.
 
Torpedoes are not particularly useful at the PT-71's BR. They should only be used to against slow moving gunboats or spammed towards commonly traveled chokepoints.
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=== Additional armament ===
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{{Specs-Fleet-Additional}}
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''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.''
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''If there is no additional armament, remove this section.''
  
 
== Usage in battles ==
 
== Usage in battles ==

Revision as of 12:05, 29 December 2020

Rank VI USSR | Premium | Golden Eagles
Su-25K Pack
PT-71
us_higgins_78ft_pt71.png
GarageImage PT-71.jpg
PT-71
Research:11 000 Specs-Card-Exp.png
Purchase:22 000 Specs-Card-Lion.png
Show in game

Description

GarageImage PT-71.jpg


The Higgins 78 ft PT-71 is a rank II American motor torpedo boat with a battle rating of 2.0 (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
Hull40 mm (wood)
Superstructure15 mm (wood)
Number of section3
Displacement49 t
Crew12 people

The PT-71 has the following structural layout:

  • Hull: 40 mm, wood
  • Superstructure: 15 mm, wood

It has a crew of only 12 but is capable of surviving losing up to 9 members before being destroyed. All of its components packed together with little room to spare so penetrating shots will likely hit modules as well as damaging the hull. With no additional armour besides the wood it is composed of, this is not a ship that can take very much damage.

Mobility

Speedforward / back
AB104 / 23 km/h
RB74 / 16 km/h
Mobility Characteristics
Game Mode Upgrade Status Maximum Speed (km/h) Turn Time (s) Turn Radius (m)
Forward Reverse
AB Stock 76 17
Upgraded 104 23
RB/SB Stock 63 14
Upgraded 74 16

The PT-71 is a very mobile ship and boasts an excellent speed of 74 kph, able to keep up with all but the fastest of Russian MTBs. The PT-71 has a displacement of 49 tons.

Modifications and economy

Repair costBasic → Reference
AB654 → 814 Sl icon.png
RB917 → 1 142 Sl icon.png
Total cost of modifications10 320 Rp icon.png
13 780 Sl icon.png
Talisman cost750 Ge icon.png
Crew training6 300 Sl icon.png
Experts22 000 Sl icon.png
Aces250 Ge icon.png
Research Aces220 000 Rp icon.png
Reward for battleAB / RB / SB
60 / 90 / 100 % Sl icon.png
124 / 124 / 124 % Rp icon.png
Modifications
Seakeeping Unsinkability Firepower
Mods new ship hull.png
Dry-Docking
Research:
520 Rp icon.png
Cost:
690 Sl icon.png
90 Ge icon.png
Mods new ship rudder.png
Rudder Replacement
Research:
390 Rp icon.png
Cost:
520 Sl icon.png
70 Ge icon.png
Mods new ship screw.png
Propeller Replacement
Research:
1 300 Rp icon.png
Cost:
1 700 Sl icon.png
230 Ge icon.png
Mods new ship engine.png
Engine Maintenance
Research:
1 100 Rp icon.png
Cost:
1 500 Sl icon.png
190 Ge icon.png
Mods ship damage control crew.png
Damage Control Division
Research:
520 Rp icon.png
Cost:
690 Sl icon.png
90 Ge icon.png
Mods ship fire control crew.png
Fire Division
Research:
390 Rp icon.png
Cost:
520 Sl icon.png
70 Ge icon.png
Mods engine smoke screen system.png
Smokescreen
Research:
390 Rp icon.png
Cost:
520 Sl icon.png
70 Ge icon.png
Mods new ship pumps.png
New Pumps
Research:
1 100 Rp icon.png
Cost:
1 500 Sl icon.png
190 Ge icon.png
Mods tank ammo.png
.50 AP belt
Research:
520 Rp icon.png
Cost:
690 Sl icon.png
90 Ge icon.png
Mods ammo.png
20 mm HE magazines
Research:
520 Rp icon.png
Cost:
690 Sl icon.png
90 Ge icon.png
Mods new aux caliber turrets.png
Auxiliary Armament Targeting
Research:
390 Rp icon.png
Cost:
520 Sl icon.png
70 Ge icon.png
Mods tank ammo.png
.50 APIT belt
Research:
390 Rp icon.png
Cost:
520 Sl icon.png
70 Ge icon.png
Mods ammo.png
20 mm AP magazines
Research:
390 Rp icon.png
Cost:
520 Sl icon.png
70 Ge icon.png
Mods new main caliber turrets.png
Primary Armament Targeting
Research:
1 300 Rp icon.png
Cost:
1 700 Sl icon.png
230 Ge icon.png
Mods ship art support.png
Artillery Support
Research:
1 100 Rp icon.png
Cost:
1 500 Sl icon.png
190 Ge icon.png

Armament

Primary armament

2 х Turret2 x 12.7 mm Browning AN-M2 machine gun
Ammunition4000 rounds
Belt capacity200 rounds
Fire rate577 shots/min
Vertical guidance-7° / 60°
Main article: AN-M2 (12.7 mm)

The four 12.7 mm AN-M2 machine guns have a great rate of fire allowing it to deal plenty of damage quickly. It is best used at ranges under 1km, any further and the bullets do significantly less damage and require more compensation for the ballistics. Since the guns rely on sheer rate of fire to destroy enemies, it is capable of engaging both naval and air targets. The recommended belt is APIT. It has slightly less penetrating than AP but gains the ability to set fires.

Secondary armament

Turret20 mm/70 Oerlikon Mk.II autocannon
Ammunition1800 rounds
Belt capacity60 rounds
Fire rate450 shots/min

The 20mm Oerlikon on the rear of the boat covers the rear blindspot of your quad machine guns. Since the 20mm has far less damage output compared to the four machine guns, the 20mm cannon should only be used when the enemy is in that rear blindspot.

Torpedo armament

Main article: 21 in Mk.8 (533 mm)

Torpedoes are not particularly useful at the PT-71's BR. They should only be used to against slow moving gunboats or spammed towards commonly traveled chokepoints.

Additional armament

Setup 14 x 21 in wet-heating Mk.8 torpedo

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 78 ft PT-71 can be considered a direct upgrade to the reserve tier Higgins 81 ft PT-6 and should be played similarly. The quad machine guns benefit from a great vantage point, and can both be fired directly forward making relatively quick work of most opponents you will face. The 20 mm Oerlikon Mk.II also packs a good punch, and, considering its positioning, has a decent field of coverage as well.

The optimal angle to engage other boats is to sail directly at them. You reveal only your bow and bridge to enemy fire while all four of your machine guns can pepper them with bullets. When going up against bigger ships use your speed, evasive maneuvers, and natural cover to approach and drop torpedoes as closely as possible. Then turn tail and run, using your 20mm and smoke to shake off any pursuers. Alternatively, some players choose to forgo torpedoes altogether favoring a lower chance of ammo detonation over the ability to engage bigger ships. All in all, the 78 ft PT-71 is a versatile boat that is not lacking in any department except for armour (but this is the standard at the rank), and it is a good boat for those just getting into Naval Battles.

Modules

Tier Seakeeping Unsinkability Firepower
I Dry-Docking Tool Set .50 AP belt 20 mm HE
II Rudder Replacement Fire Protection System Smokescreen .50 APIT belt 20 mm AP Auxiliary Armament Targeting
III Propeller Replacement Primary Armament Targeting
IV Engine Maintenance New Pumps Artillery Support

Pros and cons

Pros:

  • Good rate of fire as well as damage output
  • Guns face no obstructions (other than each other)
  • Equipped with four torpedoes
  • Good speed

Cons:

  • No armour (though this is standard for the rank)
  • Small boat means all components are packed closely together, a big hit anywhere on the ship can be deadly

History

PT-71 was laid down on December 2, 1941 by Higgins Industries, in New Orleans, Louisiana. It was launched on May 4, 1942, and was completed on July 20, 1942. It was commissioned on April 27, 1943 as the USS PT-71, and it was assigned to Motor Torpedo Boat Squadron FOUR (MTBRon 4) under the command of Lt. Comdr. William C. Specht, USN. MTBRon 4 was the training squadron for motor torpedo boat crews, based at MTB Squadrons Training Center, at Melville, Rhode Island.

PT-71 was transferred to Motor Torpedo Boat Squadron SIXTEEN (MTBRon 16) under the command of Lt. Comdr. Russell H. Smith, USN, on January 20, 1943. MTBRon saw action during the Aleutian Campaign.

On March 13, 1943 PT-71 was transferred to Motor Torpedo Boat Squadron SEVENTEEN (MTBRon 17) under the command of Lt. Comdr. Russell B. Allen, USN. MTBRon 17 was assigned to the Hawaiian Sea Frontier. On April 16, 1943 the PT-71 was transferred back to MTBRon 4.

On March 18, 1944 the ship was transferred to Motor Torpedo Boat Squadron TWO - (MTBRon 2) under the command of Comdr. John D. Bulkeley, USN. MTBRon 2 was assigned to the Office of Strategic Services, and was located in the English Channel. Between May and October of 1944 the squadron carried out 20 missions, landing supplies and personnel in enemy occupied territory. On October 11, 1945 PT-71 was struck from the Naval Register. It was stripped and destroyed on October 21, 1945 at Samar, in the Philippines.

PT-71 had a displacement of 56 t, a length of 71 ft, a beam of 20 ft 8 in, and a draft of 5 ft 3 in. It was powered by three 1,500 shp Packard W-14 M2500 gasoline engines, and had three shafts. The armament consisted of four 21" torpedoes, one 40mm mount, and two twin .50 cal. machine guns. The crew complement was 17 sailors and officers, and it had a maximum speed of 40 knots.

Media

Excellent additions to the article would be video guides, screenshots from the game, and photos.

See also

Links to articles on the War Thunder Wiki that you think will be useful for the reader, for example:

  • reference to the series of the ship;
  • links to approximate analogues of other nations and research trees.

External links

Bibliography


Higgins Industries Ships
Patrol Torpedo Boats (PT) 
81' PT Prototype  PT-6
78' PT  PT-71 · PT-200 · PT-658 · MTB-422*
  *PT-92 in UK service

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 Tucumcari · USS Cyclone
Armoured gun boats  LCM(6) Zippo