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Special Type 4 Amphibious Tank Kai

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Type 4 Ka-Tsu Mk.1
No.526 特四式内火艇改
Special Amphibious Tank Icon.png Special Amphibious Tank
Effects: Torpedo+3 AA+2 Accuracy+1
Provides bonuses against installations
Affects various resources mechanics
Scrap value: Fuel 3 Ammo 4 Steel 4 Bauxite 7 (Unbuildable)

Equipment Card Special Type 4 Amphibious Tank Kai.png

Equipment Character Special Type 4 Amphibious Tank Kai.png

Equipment Item Special Type 4 Amphibious Tank Kai.png

Equipment Full Special Type 4 Amphibious Tank Kai.png

Refittable Ship Types
Fast Battleship Battleship
Aviation Battleship Standard Aircraft Carrier
Armored Carrier Light Carrier
Heavy Cruiser Aviation Cruiser
Light Cruiser Torpedo Cruiser
Training Cruiser Destroyer
Coastal Defense Ship Submarine
Aircraft Carrying Submarine Seaplane Tender
Fleet Oiler Submarine Tender
Repair Ship Amphibious Assault Ship

Introduction

日本海軍が開発した水陸両用戦闘車両「特四式内火艇」、その改良型です。
問題の空冷ディーゼルエンジンを換装、無限軌道及び水上航行機動性も向上、主兵装の魚雷の他に対艦対空用に噴進砲及び装填用次弾などを搭載。
艦そして部隊間の通信機能も強化した特四式改、カツ改で幻の「竜巻作戦」を！
暁の敵環礁泊地に、第六艦隊の凱歌を！

This is an improved version of the "Special Type 4 Amphibious Tank" amphibious combat vehicle, developed by the Japanese Navy.
The problematic air-cooled diesel engine has been replaced, tracks and water navigation mobility have been improved, and in addition to the main armament, torpedoes, it is equipped with rockets for anti-ship and anti-aircraft use, as well as ammunitions for reloading.
Enhanced with improved communication capabilities between ships and units, the Special Type 4 Kai will carry out the surprise attack "Operation Tasumaki"!
Let the Sixth Fleet's victory song echo in the enemy's atoll anchorage at dawn!

Mechanics

Special Type 4 Amphibious Tank Kai is an Amphibious Vehicle Amphibious Vehicle:

  • It deals adequate damage against installations, being a good component for "nukes" (see Anti-Installation).
  • It also allows Submarines to participate in the shelling phase against Installations, by launching the tank in battle.
  • It has an extra bonus against PT boats.
Ka-Tsu Animation
Ka-Tsu:
Katsu animation 2.png
Ka-Tsu Kai:
Katsu kai animation 2.png

Uniquely on "Atoll Nodes", it is possible to deploy the Amphibious Vehicle Ka-Tsu tanksSpecial Type 4 Amphibious Tank
Special Type 4 Amphibious Tank Kai to trigger a special Opening Torpedo Salvo.

  • On those nodes, regular oTorp will not work,
  • This can only be deployed by SS, SSV, and the AV Mikuma Kai Ni Toku, Nisshin A, and Mizuho Kai fast,
    • They must carry at least one Ka-Tsu tank,
  • On the "atoll node", ships meeting those requirements will carry out a special opening torpedo attack,
  • In night battle, those ships will additionally trigger the same attack as a cutin,
    • This attack overrides regular Night Cut-ins attacks (e.g. if a ship is setuped for a TCI, it will still trigger the Ka-Tsu attack).
  • Using several Ka-Tsu tanks on a same ship will make it carry out several of those attacks in a row (day and night),
    • It capped at 2 attacks per ship at night.
    • This attack utilizes a new special animation, with the tank climbing the atoll's soil.

Can be equipped in the RE of I-36, I-41, I-47 Kai, and I-58 Kai.

Notes

This equipment is often referred to by its official Japanese name "Ka-Tsu".

Not to be confused with other "Landing Equipment/Tanks" (see here).

How To Obtain

Event reward for:

Updates History

  • 2024-03-01: Implemented

Misc

In the Library, in addition to its normal CG & fairies, the Ka-Tsu Kai also has 2 asset variations, corresponding to its normal layout without torpedo (as seen on its Anti-Installation animation):

Asset Variations

  • Equipment (torpedoless)

  • Combination (torpedoless)

Fit Bonuses

Special Type 4 Amphibious Tank Kai Equipment Bonuses
Ship Extra Requirement Firepower Torpedo Attack Anti-Air Anti-Submarine Warfare Line of Sight Armor Accuracy Evasion Note
All SS
All SSV 		(★0) +2 +3 +1 -1
(★1) +2 +4 +1 -1
(★2) +3 +4 +1 -1
(★3) +3 +4 +2 -1
(★4-5) +3 +5 +2 -1
(★6-7) +3 +5 +3 -1
(★8-9) +4 +5 +3 -1
(★MAX) +4 +6 +3 -1
I-36 (any)I-36
I-36 Kai
I-41 (any)I-41
I-41 Kai 		(1st equipped) +2 +1 +2 One-time[1]
  1. ↑ Shared with Special Type 4 Amphibious TankSpecial Type 4 Amphibious Tank

Improvement

Improvement Improved effects
Amphibious Vehicle 1★ 2★ 3★ 4★ 5★ 6★ 7★ 8★ 9★ Max★
Firepower 1.00 1.41 1.73 2.00 2.23 2.44 2.64 2.82 3.00 3.16
Night Battle Power 1.00 1.41 1.73 2.00 2.23 2.44 2.64 2.82 3.00 3.16
Accuracy Day 1.00 1.41 1.73 2.00 2.23 2.44 2.64 2.82 3.00 3.16
Accuracy Night 1.30 1.84 2.25 2.60 2.91 3.18 3.44 3.68 3.90 4.11
Anti-Installation
Bonuses 		A1 1 + (Average Improved /50)
C [1 + (Average Improved /50)]N
Expedition Bonus 1 + (Average Improved /100)
Has some observed bonus on some special Resource Nodes gains

See Also

v · e
Equipment List
Gallery • By Stats • Equipment Types & Icons • Development • Improvement
 
Main Guns
Foreign
10cm Twin HA Gun Mount (+ AAFD • Kai + AAFD Kai) • 12cm Single HA Gun Mount (Model E • Model E Kai) • 12.7cm HA Gun Mount (Single LM • Twin LM • Single Kai 2 • Twin Kai 2) • 12.7cm Twin HA Gun Mount (Model A Kai 3 + AAFD • Model B Kai 4 + AAFD)
Foreign
14 cm
15-15.5 cm/6 inch
20-20.3 cm/8 inch
30.5-32 cm
305mm/46 Gun Mount (Twin • Triple) (Ita) • 320mm/44 Gun Mount (Twin • Triple) (Ita) • 30.5cm Triple Gun Mount (Kai) (Sov)
35.6 cm/14 inch
38-38.1 cm
41 cm/16 inch
41cm Twin Gun Mount (Kai 2) • 41cm Triple Gun Mount (Proto • Kai • Kai 2) • 16inch Twin Gun Mount (Mk.I • Mk.V • Mk.VIII Kai) (US) • 16inch Triple Gun Mount (Mk.6 • Mk.6 + GFCS • Mk.6 mod.2 • Mk.7 • Mk.7 + GFCS) (US) • 16inch Triple Gun Mount (Mk.I • Mk.I + AFCT Kai • Mk.I Kai + FCR Type 284) (UK)
46 cm
 
Secondary Guns
Surface
Foreign
 
Anti-Air
 
Torpedo Weapons
53cm Twin Torpedo Mount • 53cm Bow O2 Torpedoes • 61cm Torpedo Mount (Triple • Triple O2 • Triple O2 LM • Quad • Quad O2 • Quad O2 LM • Quintuple O2 • Proto Sext O2) • 533mm Quint Torpedo Mount (Initial Model • Late Model) (US) • 533mm Triple Torpedo Mount (Model 53-39) (Sov)
Late Model Bow Torpedo Mount (4 tubes) (+ Skilled Sonar Personnel) • Late Model Bow Torpedo Mount (6 tubes) (+ Skilled Sonar Personnel) • Submarine 53cm Bow Torpedo Mount (8 tubes) (Late Model) • Prototype FaT Type 95 Oxygen Torpedo Kai (IJN/Ger) • 21inch 4-tube Bow Torpedo Launcher (Initial Model • Late Model) (US) • 21inch 6-tube Bow Torpedo Launcher (Initial Model • Late Model) (US) • Submarine 4-tube Stern Torpedo Launcher (Initial Model • Late Model) (US)
Kouhyouteki (Type A • Type C • Type D Kai)
 
Carrier-Based Planes
Other (IJN)
Type 96 (Kai) • Shiden (Kai 2 • Kai 4) • Reppuu (Prototype LM • Model 11 • 601 • Kai • Kai 2 • Kai 2 (CD1/Skilled)) • Prototype Jinpuu • Shinden Kai
Foreign
Bf 109 T Kai (IJN/Ger) • Fw190 (T Kai • A-5 Kai (Skilled)) (IJN/Ger) • Reggiane (2001 OR Kai • 2005 Kai) (IJN/Ita) • Wildcat (F4F-3 • F4F-4) (US) • Hellcat (F6F-3 • F6F-5) (US) • XF5U (US) • FR-1 Fireball (US) • Fulmar (UK) • Seafire Mk.III Kai (UK) • Corsair Mk.II (Ace) (UK/US)
Reppuu Kai 2 Model E (CD1/Skilled) • Hellcat (F6F-3N • F6F-5N) (US) • F4U-2 Night Corsair (US)
Foreign
Ju.87C (Kai • Kai 2 KMX • Kai 2 KMX/Skilled) (IJN/Ger) • Re.2001 CB Kai (IJN/Ita) • SBD (Yellow Wings • VB-2 Bomber Squad) (US) • SBD-5 (US) • Helldiver (SB2C-3 • SB2C-5) (US) • Corsair (F4U-1D (US) • F4U-4 (US) • AU-1 (US) • F4U-7 (Fr/US)) • FM-2 (US) • Skua (UK)
Type 97 (Skilled • 931 • 931/Skilled • Tomonaga • Murata) • Tenzan (601 • 931 • Model 12A • Tomonaga • Murata) • Ryuusei (Kai • Kai Skilled • 601 • CD1 • CD1/Skilled)
Foreign
Re.2001 G Kai (IJN/Ita) • TBD (Yellow Wings) (US) • TBF (US) • Swordfish (Mk.II Skilled • Mk.III Skilled) (UK) • Barracuda (Mk.II • Mk.III) (UK) • Mosquito TR Mk.33 (UK)
Type 97 Model E (Skilled) • Tenzan Model 12A Kai (Skilled  • Murata) • TBM-3D (US) • TBM-3W+3S (JMSDF/US)
 
Land-Based Planes
Toukai (Proto • 901)
"Army"
Type 1 Fighter Hayabusa (Model II • Model II (64) • Model IIIA • Model IIIA (54)) (IJA) • Type 3 Fighter Hien (Model 1D • 244) (IJA) • Type 4 Fighter Hayate (IJA) • Type 2 Two-seat Fighter Toryuu (Model C) (IJA) • Ki-96 (IJA) • Fw 190 D-9 (Ger) • Spitfire (Mk.I • Mk.V • Mk.IX Skilled) (UK)
"Navy"
Raiden • Shiden (Model 11 • Kai • Kai 343/301 • Kai 343/407 • Kai 343/701) • Type 0 Fighter (Model 22 (251) • Model 21 (Tainan) • Model 32 (Tainan)) • Reppuu Kai (352/Skilled)
Jets
Canard
HA
Me 163B (Ger) • Shuusui (Proto)
 
Seaplanes
Type 98 Reconnaissance Seaplane (Night Recon) • Type 0 Reconnaissance Seaplane (11B Kai Night Recon • 11A Kai 2)  • Loire 130M (Kai Skilled) (Fr) • Walrus (UK) • Sea Otter (UK)
Zuiun (631 • 634 • 634/Skilled • Model 12 • Model 12 (634) • Kai 2 (634) • Kai 2 (634/Skilled)) • Seiran (Prototype • 631) • Swordfish (Mk.III Kai • Mk.III Kai Skilled) (UK/Swe) • Laté 298B (Fr)
Type 2 Kai (Skilled) • Kyoufuu (Kai • Kai 2) • Ro.44 Seaplane Fighter (bis) (Ita)
 
Radars
 
Anti-Submarine Warfare
Ka Type Observation Autogyro (IJA) • O Type Observation Autogyro (Kai • Kai 2) (IJA) • S-51J (Kai) (JMSDF/US)
 
Miscellaneous
Night Battle Aid
Facility & Crew
Consumables
Others
Unreleased & removed
HA - High-Angle or High-Altitude; DP - Dual-Purpose; LM - Late Model; CD - Concentrated Deployment or Carrier Division
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