Special Type 4 Amphibious Tank

Type 4 Ka-Tsu
No.525 特四式内火艇
Special Amphibious Tank Icon.png Special Amphibious Tank
Effects: Torpedo+1 AA+1
Provides bonuses against installations
Affects various resources mechanics
Scrap value: Fuel 2 Ammo 2 Steel 4 Bauxite 6 (Unbuildable)

Equipment Card Special Type 4 Amphibious Tank.png

Equipment Character Special Type 4 Amphibious Tank.png

Equipment Item Special Type 4 Amphibious Tank.png

Equipment Full Special Type 4 Amphibious Tank.png

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

Introduction

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Mechanics

  Amphibious Vehicles behave similarly to Landing Craft. They:

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

Special Mechanic

Uniquely on "Atoll Nodes", it is possibly to deploy the   Ka-Tsu tanks 
 
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.

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

Upgradeable from: Special Type 2 Amphibious Tank 

Event reward for:

  • Early Spring 2024 Event
    • E-1: Hard (★+1), Medium (x2, ★+1), Easy (x2), Casual
    • E-2: Hard (★+3), Easy (★+1), Casual

Updates History

  • 2024-03-01: Implemented and improvable

Fit Bonuses

Special Type 4 Amphibious Tank Equipment Bonuses
Ship Extra Requirement                 Note
All SS
All SSV
(★0) +1 +2 -1
(★1-2) +1 +3 -1
(★3-5) +1 +3 +1 -1
(★6-9) +1 +3 +2 -1
(★MAX) +1 +4 +2 -1
I-36 (any) 
 

I-41 (any) 
 
(1st equipped) +2 +1 +2 One-time[1]

In-game displayed values are bugged, this table shows the corrected values. See Display Bugs for details.

Improvement

  Special Type 4 Amphibious Tank

Improvement Not
Upgradable
★ Improvement
Level
0~5 6~9
  Consumed / /
  Consumed / /
Equipment
Consumed
- -
Items
Consumed
-
Resources        
Ship Helper Conversion
 
I-41/Kai
-
Mon Tue Wed Thu Fri Sat Sun
Improvement   effects
  1★ 2★ 3★ 4★ 5★ 6★ 7★ 8★ 9★ Max★
  1.00 1.41 1.73 2.00 2.23 2.44 2.64 2.82 3.00 3.16
  1.00 1.41 1.73 2.00 2.23 2.44 2.64 2.82 3.00 3.16
  Day 1.00 1.41 1.73 2.00 2.23 2.44 2.64 2.82 3.00 3.16
  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   /30)
C 1 + (Average   /30)
Expedition Bonus 1 + (Average   /100)
Has some observed bonus on some special Resource Nodes gains

See Also

Type 4 Ka-Tsu