Difference between revisions of "Type T-51a"

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== Description ==
 
== Description ==
 
<!-- ''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.'' -->
 
<!-- ''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.'' -->
The '''{{Specs|name}}''' is a premium gift rank {{Specs|rank}} Japanese motor torpedo boat {{Battle-rating}}. It was introduced during [[Update "Danger Zone"]] as a reward for [[Battle Pass: Season VIII, "Field Testing"]].
+
The '''{{Specs|name}} (No. 10)''' was the first of a new Japanese patrol boat type, known as the Type A (Kō/甲) torpedo boat (Heavy Torpedo boat). Subsequent standard small-sized patrol boats would be classified under Type B (Otsu/乙). Called into production and influenced by German S-Boots in 1941, the Japanese attempted to upscale their patrol boats from the previous [[Type T-1]] at 20 tons to 80 tons. However, due to relatively low advancements in shipbuilding materials, especially for patrol boats, the entire vessel was constructed from steel and wood instead of light alloy. Additionally, the armament exceeded the planned weight, reaching over 90 tons. This failure to meet expectations led to the development of the variant [[Type T-51b]] (No. 11 - 17).
 +
 
 +
It was introduced during [[Update "Danger Zone"]] as a reward for [[Battle Pass: Season VIII, "Field Testing"]]. Despite failing to meet the planned weight, the vessel is still operational and can be effectively used in two roles: either utilising the four torpedoes against slower, larger vessels or ambushing light boats with its rear-mounted anti-air twin 25 mm emplacement.
  
 
== General info ==
 
== General info ==
Line 36: Line 38:
 
{{main|25 mm/60 Type 96 (25 mm)}}
 
{{main|25 mm/60 Type 96 (25 mm)}}
  
''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.''
+
* '''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}}
 +
* '''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}} - Recommended against Russian armoured river boats.
 +
* '''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}} - Recommended belt
  
 +
{{:25 mm/60 Type 96 (25 mm)/Ammunition|HEF-T*, HEI, HEF, AP-T}}
 
=== Additional armament ===
 
=== Additional armament ===
 
{{Specs-Fleet-Additional}}
 
{{Specs-Fleet-Additional}}
Line 47: Line 52:
 
== Usage in battles ==
 
== Usage in battles ==
 
<!-- ''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).'' -->
''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 Type T-51a is one of the more tricky boats to use, with a very steep learning curve. The key defining feature of the boat is its rear-mounted gun, able to fire only in reverse, and thus has the option for a two particular playstyles:
 +
 
 +
'''Ambusher''' - Using hard cover, one can stick the stern out and use the gun with near-impunity, as the rear of the boat is a small target with little crew inside, enabling one to output a huge amount of damage before suffering any significant consequences. That said, enemy positioning has to be monitored at all times, as well as artillery strikes. Also, be careful with controlling speed and when fighting anything larger than a boat - the large-calibre guns found on destroyers can often blow the boat up even if hitting just the rear-most end of the hull. This tactic shines on the maps like African Gulf, Black Sea Port, Drowned City, Ireland Bay, or Vyborg Bay.
 +
 
 +
An alternative version of this approach is to bait enemy boats into following you, and then shooting directly back at them. Turning and then keeping the profile of the T-51a as narrow as possible is the tricky part, but the high-velocity 25 mm gun can typically sink them before they manage to inflict any significant damage back.
 +
 
 +
'''Torpedo boat''' - The T-51a has more torpedoes than any other Japanese boats of its rank or lower, and this opens some additional options, even if the torpedoes have a very short range of just 3 kilometres. Use of torpedoes is very opportunistic and typically best used against destroyers (most notably the [[Town (Family)|Town]] and [[Clemson (Family)|Clemson]] class) from behind hard cover. The key is to approach behind cover, select an enemy destroyer as a target and fire torpedoes at the alignment marker before you are directly visible to the enemy guns. Then either reverse or turn around, preferably without ever being in a direct line of fire. The large warhead of the onboard torpedoes will usually sink any destroyer with a single hit. This approach will benefit from a large amount of tall, hard cover on a way to the flanks of the destroyers, and a convenient escape routes, most notably on maps such as Japanese Port, North Port, or Norway.
  
 
=== Pros and cons ===
 
=== Pros and cons ===
 
<!-- ''Summarise and briefly evaluate the vehicle in terms of its characteristics and combat effectiveness. Mark its pros and cons in the bulleted list. Try not to use more than 6 points for each of the characteristics. Avoid using categorical definitions such as "bad", "good" and the like - use substitutions with softer forms such as "inadequate" and "effective".'' -->
 
<!-- ''Summarise and briefly evaluate the vehicle in terms of its characteristics and combat effectiveness. Mark its pros and cons in the bulleted list. Try not to use more than 6 points for each of the characteristics. Avoid using categorical definitions such as "bad", "good" and the like - use substitutions with softer forms such as "inadequate" and "effective".'' -->
''Summarise and briefly evaluate the vehicle in terms of its characteristics and combat effectiveness. Mark its pros and cons in the bulleted list. Try not to use more than 6 points for each of the characteristics. Avoid using categorical definitions such as "bad", "good" and the like - use substitutions with softer forms such as "inadequate" and "effective".''
 
  
 
'''Pros:'''
 
'''Pros:'''
*
+
* High velocity main gun with a short reload time can outdamage most peers, especially if they try to manoeuvre in a medium range
 +
* A very narrow front and rear profile, low freeboard, especially on the rear-end
 +
* Four torpedoes with a very large warhead that can instantly sink every ship around its BR
  
 
'''Cons:'''
 
'''Cons:'''
*
+
* Main gun has a very inconvenient firing arc, including the steel shield on the edges of the horizontal arc, that lifts the gun up above the target, while the in-game indicator still shows the gun to be green to fire
 +
* Offset of the gun compared to the aiming reticle along with frequent reloads make it very challenging to engage enemy aircraft
 +
* Large side-profile makes it possible for some boats to kill the T-51a with a single barrage along the ship's length
 +
* Very short-range torpedoes make it challenging to engage destroyers, especially in open waters
  
 
== 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).'' -->
''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 Type Ko MTB (甲型魚雷艇, T-51) is a Japanese large MTB inspired by the German S-boots.
 +
This boat is separated into two group: No.10 class MTB (T-51a) and No.11 class MTB (T-51b).
 +
 
 +
After the completion of the No.1 class MTB ([[Type T-1|T-1]]), news about activity of the German [[S-38|Schnellboot (S-boot)]] from Europe reached the Imperial Japanese Navy (IJN). They started to copy the S-boot design, but they had only a simple sketch and one civilian motor boat owned by the Mitsui family built by Lürssen (a builder of S-boot). In that time, the Japanese did not have the experience to produce a wood-and-iron mixed large boat, so at first they built one prototype. ("Vessel No.600", later No.10 MTB)
 +
 
 +
The No.600 prototype was laid down in July 1942 by Yokohama Yacht Tsurumi factory and completed in November 1943. But because of the worsening of the war situation, they started mass-production the ship design before testing the prototype. Just afterwards, the Japanese receive official detailed drawings of 95-ft type S-boot. Basically, design of future T-51 and S-boat was similar, but there was much for the Japanese to learn.
 +
 
 +
In the designing of No.600, the Japanese simplified lots of part and material. Due to how well-crafted the S-boot design was, the simplification caused several problems. Though measures were taken to mitigate the problems, the vessel stability was not enough and so there were difficulties putting the ship into practical use.
 +
 
 +
No.600 was equipped with four Mark 71 Model 6 engines (water-cooled, 920 HP), which were a copy of the Italian MAS-451 MTB engines. There were two shafts, with two engines connected to one shaft by Vulkan coupling. However, this configuration caused an increase of weight and so the prototype exceeded the planned displacement of 84.2 tons, and instead reached 89.6 tons and so the maximum speed decreased. Because of this, the boat was redesigned into the No.11 class MTB, which eliminated the coupling and so each engine had their own shaft. With this, the single No.10 class design (No.600 prototype) was named the ''T-51a'', with the redesigned No.11 class as the '''T-51b''' that would be the model for subsequent boat numbers.
 +
 
 +
Armaments was also redesigned between the two class. The T-51a had one 25 mm twin machine gun and four 45 cm torpedoes, while the T-51b had three 25 mm single machine guns and two torpedoes.
 +
 
 +
No.10 (T-51a), No.13 and No.16 were built at Yokohama Yacht Tsurumi factory, while the other boats were built by a new shipyard, Yokohama Yacht Choshi factory. A total of ten Type Ko MTBs were laid down, but only 8 boats were completed (No.10 - No.17). Construction of Type Ko was cancelled in August 1944. No.18 was planned to equip a small diesel engine, but it was not completed. The construction of Type Ko MTBs was delayed because the No.11 class MTBs need to resolve problem discovered during the testing of No.10 class MTB. Also the Mk.71 Mod.6 engines required advanced manufacturing technology and so production of engine was also delayed.
 +
 
 +
No.10 MTB was dispatched to Truk island just after completion, but a fire broke out and sank due to air raid. No.12 MTB was brought out from Choshi to Yokosuka to equip weapons, but just after that was completed, she sunk due to an electric motor spark that ignited the gasoline and subsequently exploded.
 +
 
 +
Other vessels was deployed to the Special Attack corps, but most of them did not experience the actual battle. Only one boat deployed at Habu port of Izu Oshima attacked an enemy submarine.
 +
 
 +
Also, No.16 MTB equip only two engine. She used space of other engines for hold and used for tender boat of other small MTBs and midget submarines at Kawadana Assault Corps.<ref name="ShigeruNavy" /><ref name="YoshinobuBoat" />
  
 
== Media ==
 
== Media ==
Line 86: Line 120:
  
 
* [[wt:en/news/7780-development-battle-pass-vehicles-type-t-51a-torpedo-boat-en|[Devblog] Battle Pass vehicles: Type T-51A torpedo boat]]
 
* [[wt:en/news/7780-development-battle-pass-vehicles-type-t-51a-torpedo-boat-en|[Devblog] Battle Pass vehicles: Type T-51A torpedo boat]]
 +
 +
===References===
 +
<references>
 +
<ref name="ShigeruNavy">Makino Shigeru [牧野茂] & Fukui Shizuo [福井静雄], ''Navy Shipbuilding Technology Overview [海軍造船技術概要]'' (Konnichi no Wadaisha, 1987), pp.716-719.</ref>
 +
<ref name="YoshinobuBoat">Imamura Yoshinobu [今村好信], (2011) ''Story of Japanese Torpedo Boats [日本魚雷艇物語]'' (Kojin-sha, 2011) pp.55-60.</ref>
 +
</references>
  
 
{{Japan boats}}
 
{{Japan boats}}
 
{{Japan premium ships}}
 
{{Japan premium ships}}

Latest revision as of 16:04, 10 June 2024

Rank IV USSR | Premium | Golden Eagles
Tu-1 Pack
This page is about the premium Japanese motor torpedo boat Type T-51a. For the regular version, see Type T-51b.
Type T-51a
jp_t51a.png
GarageImage Type T-51a.jpg
ArtImage Type T-51a.png
Type T-51a
Show in game

Description

The Type T-51a (No. 10) was the first of a new Japanese patrol boat type, known as the Type A (Kō/甲) torpedo boat (Heavy Torpedo boat). Subsequent standard small-sized patrol boats would be classified under Type B (Otsu/乙). Called into production and influenced by German S-Boots in 1941, the Japanese attempted to upscale their patrol boats from the previous Type T-1 at 20 tons to 80 tons. However, due to relatively low advancements in shipbuilding materials, especially for patrol boats, the entire vessel was constructed from steel and wood instead of light alloy. Additionally, the armament exceeded the planned weight, reaching over 90 tons. This failure to meet expectations led to the development of the variant Type T-51b (No. 11 - 17).

It was introduced during Update "Danger Zone" as a reward for Battle Pass: Season VIII, "Field Testing". Despite failing to meet the planned weight, the vessel is still operational and can be effectively used in two roles: either utilising the four torpedoes against slower, larger vessels or ambushing light boats with its rear-mounted anti-air twin 25 mm emplacement.

General info

Survivability and armour

Armourfront / side / back
Hull40 mm (wood)
Superstructure3 mm (steel)
Number of section4
Displacement90 t
Crew18 people

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.

Mobility

Speedforward / back
AB77 / 25 km/h
RB55 / 18 km/h

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.

Mobility Characteristics
Game Mode Upgrade Status Maximum Speed (km/h) Turn Time (s) Turn Radius (m)
Forward Reverse
AB Stock ___ ___
Upgraded 77 25
RB/SB Stock ___ ___
Upgraded 55 18

Modifications and economy

Repair cost
AB1 012 Sl icon.png
RB1 350 Sl icon.png
Crew training10 000 Sl icon.png
Experts290 000 Sl icon.png
Aces700 Ge icon.png
Research Aces790 000 Rp icon.png
Reward for battleAB / RB / SB
Talisman.png 2 × 110 / 180 / 50 % Sl icon.png
Talisman.png 2 × 154 / 154 / 154 % Rp icon.png
Modifications
Seakeeping Unsinkability Firepower
Mods new ship hull.png
Dry-Docking
Mods new ship rudder.png
Rudder Replacement
Mods new ship screw.png
Propeller Replacement
Mods new ship engine.png
Engine Maintenance
Mods ship damage control crew.png
Damage Control Division
Mods ship fire control crew.png
Fire Division
Mods engine smoke screen system.png
Smokescreen
Mods new ship pumps.png
New Pumps
Mods tank ammo.png
25mm_type96_naval_ap_ammo_pack
Mods tank ammo.png
25mm_type96_naval_incendiary_ammo_pack
Mods new main caliber turrets.png
Primary Armament Targeting
Mods depth charge.png
Depth Charges
Mods ship art support.png
Artillery Support

Armament

Primary armament

Turret2 x 25 mm/60 Type 96 automatic cannon
Ammunition3000 rounds
Belt capacity15 rounds
Fire rate261 shots/min
Vertical guidance-10° / 85°
  • Universal: HEF-T* · HEF · AP-T · HEI
  • 25 mm APT belt: AP-T · AP-T · AP-T · HEF - Recommended against Russian armoured river boats.
  • 25 mm HEIT belts: HEF-T* · HEI · HEI · HEI - Recommended belt

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

Setup 14 x 450 mm Type 2 torpedo
Setup 212 x Type 95 depth charge
Setup 34 x 450 mm Type 2 torpedo
12 x 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 Type T-51a is one of the more tricky boats to use, with a very steep learning curve. The key defining feature of the boat is its rear-mounted gun, able to fire only in reverse, and thus has the option for a two particular playstyles:

Ambusher - Using hard cover, one can stick the stern out and use the gun with near-impunity, as the rear of the boat is a small target with little crew inside, enabling one to output a huge amount of damage before suffering any significant consequences. That said, enemy positioning has to be monitored at all times, as well as artillery strikes. Also, be careful with controlling speed and when fighting anything larger than a boat - the large-calibre guns found on destroyers can often blow the boat up even if hitting just the rear-most end of the hull. This tactic shines on the maps like African Gulf, Black Sea Port, Drowned City, Ireland Bay, or Vyborg Bay.

An alternative version of this approach is to bait enemy boats into following you, and then shooting directly back at them. Turning and then keeping the profile of the T-51a as narrow as possible is the tricky part, but the high-velocity 25 mm gun can typically sink them before they manage to inflict any significant damage back.

Torpedo boat - The T-51a has more torpedoes than any other Japanese boats of its rank or lower, and this opens some additional options, even if the torpedoes have a very short range of just 3 kilometres. Use of torpedoes is very opportunistic and typically best used against destroyers (most notably the Town and Clemson class) from behind hard cover. The key is to approach behind cover, select an enemy destroyer as a target and fire torpedoes at the alignment marker before you are directly visible to the enemy guns. Then either reverse or turn around, preferably without ever being in a direct line of fire. The large warhead of the onboard torpedoes will usually sink any destroyer with a single hit. This approach will benefit from a large amount of tall, hard cover on a way to the flanks of the destroyers, and a convenient escape routes, most notably on maps such as Japanese Port, North Port, or Norway.

Pros and cons

Pros:

  • High velocity main gun with a short reload time can outdamage most peers, especially if they try to manoeuvre in a medium range
  • A very narrow front and rear profile, low freeboard, especially on the rear-end
  • Four torpedoes with a very large warhead that can instantly sink every ship around its BR

Cons:

  • Main gun has a very inconvenient firing arc, including the steel shield on the edges of the horizontal arc, that lifts the gun up above the target, while the in-game indicator still shows the gun to be green to fire
  • Offset of the gun compared to the aiming reticle along with frequent reloads make it very challenging to engage enemy aircraft
  • Large side-profile makes it possible for some boats to kill the T-51a with a single barrage along the ship's length
  • Very short-range torpedoes make it challenging to engage destroyers, especially in open waters

History

The Type Ko MTB (甲型魚雷艇, T-51) is a Japanese large MTB inspired by the German S-boots. This boat is separated into two group: No.10 class MTB (T-51a) and No.11 class MTB (T-51b).

After the completion of the No.1 class MTB (T-1), news about activity of the German Schnellboot (S-boot) from Europe reached the Imperial Japanese Navy (IJN). They started to copy the S-boot design, but they had only a simple sketch and one civilian motor boat owned by the Mitsui family built by Lürssen (a builder of S-boot). In that time, the Japanese did not have the experience to produce a wood-and-iron mixed large boat, so at first they built one prototype. ("Vessel No.600", later No.10 MTB)

The No.600 prototype was laid down in July 1942 by Yokohama Yacht Tsurumi factory and completed in November 1943. But because of the worsening of the war situation, they started mass-production the ship design before testing the prototype. Just afterwards, the Japanese receive official detailed drawings of 95-ft type S-boot. Basically, design of future T-51 and S-boat was similar, but there was much for the Japanese to learn.

In the designing of No.600, the Japanese simplified lots of part and material. Due to how well-crafted the S-boot design was, the simplification caused several problems. Though measures were taken to mitigate the problems, the vessel stability was not enough and so there were difficulties putting the ship into practical use.

No.600 was equipped with four Mark 71 Model 6 engines (water-cooled, 920 HP), which were a copy of the Italian MAS-451 MTB engines. There were two shafts, with two engines connected to one shaft by Vulkan coupling. However, this configuration caused an increase of weight and so the prototype exceeded the planned displacement of 84.2 tons, and instead reached 89.6 tons and so the maximum speed decreased. Because of this, the boat was redesigned into the No.11 class MTB, which eliminated the coupling and so each engine had their own shaft. With this, the single No.10 class design (No.600 prototype) was named the T-51a, with the redesigned No.11 class as the T-51b that would be the model for subsequent boat numbers.

Armaments was also redesigned between the two class. The T-51a had one 25 mm twin machine gun and four 45 cm torpedoes, while the T-51b had three 25 mm single machine guns and two torpedoes.

No.10 (T-51a), No.13 and No.16 were built at Yokohama Yacht Tsurumi factory, while the other boats were built by a new shipyard, Yokohama Yacht Choshi factory. A total of ten Type Ko MTBs were laid down, but only 8 boats were completed (No.10 - No.17). Construction of Type Ko was cancelled in August 1944. No.18 was planned to equip a small diesel engine, but it was not completed. The construction of Type Ko MTBs was delayed because the No.11 class MTBs need to resolve problem discovered during the testing of No.10 class MTB. Also the Mk.71 Mod.6 engines required advanced manufacturing technology and so production of engine was also delayed.

No.10 MTB was dispatched to Truk island just after completion, but a fire broke out and sank due to air raid. No.12 MTB was brought out from Choshi to Yokosuka to equip weapons, but just after that was completed, she sunk due to an electric motor spark that ignited the gasoline and subsequently exploded.

Other vessels was deployed to the Special Attack corps, but most of them did not experience the actual battle. Only one boat deployed at Habu port of Izu Oshima attacked an enemy submarine.

Also, No.16 MTB equip only two engine. She used space of other engines for hold and used for tender boat of other small MTBs and midget submarines at Kawadana Assault Corps.[1][2]

Media

Skins
Videos

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

References

  1. Makino Shigeru [牧野茂] & Fukui Shizuo [福井静雄], Navy Shipbuilding Technology Overview [海軍造船技術概要] (Konnichi no Wadaisha, 1987), pp.716-719.
  2. Imamura Yoshinobu [今村好信], (2011) Story of Japanese Torpedo Boats [日本魚雷艇物語] (Kojin-sha, 2011) pp.55-60.


Japan boats
Motor torpedo boats  Type T-1 · Type T-14 · Type T-14 (mod. 1) · Type T-38 · Type T-51a · Type T-51b · PT-15 · PT-808
Motor gun boats  Ha-Go (mod. 1) · Type 4 (mod. 2) · Type 4 (Mod 4) · Asagao (YTE-01) · PG 02
Armoured gun boats  Soukou-Tei · Soukou-Tei No.4
Gunboats  Chidori

Japan premium ships
Motor torpedo boats  Type T-14 (mod. 1) · Type T-51a
Motor gun boats  Type 4 (Mod 4) · PG 02
Sub-chasers  Type K-8 No.13
Frigates  Akebono
Destroyers  IJN Satsuki · IJN Nenohi · IJN Hayanami · IJN Kiyoshimo · IJN Yuudachi · JDS Yūgure (DD-184)
Light cruisers  IJN Yubari · IJN Mikuma
Heavy cruisers  IJN Myoko
Battleships  IJN Yamashiro