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Shiden Kai 4

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Violet Lightning Mk.4
No.271 紫電改四
GreenPlane.png Carrier-based Fighter Aircraft
Effects: AA+10 Armor+1 Accuracy+1 Evasion+3
Combat Radius: 4 (Deployment Cost: Bauxite 7)
Scrap value: Fuel 2 Ammo 4 Bauxite 8 (Unbuildable)

Equipment Card Shiden Kai 4.png

Equipment Character Shiden Kai 4.png

Equipment Item Shiden Kai 4.png

Equipment Full Shiden Kai 4.png

Refittable Class
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


※ 本土防空の切り札、局地戦闘機「紫電改」の艦載機型、その改良型です。

※ This is an improved model of the carrier-based version of the interceptor aircraft "Shiden Kai", our trump card when it comes to our country's air defense.
It is an upgraded version that improved upon the Shiden Kai's engine, featured excellent dogfighting capabilities due to high-horsepower engines and the use of flaps,
and was developed to fill in the spot that was reserved for its successor, the main fighter aircraft "Reppū", as its deployment got delayed.


Not to be confused with other aircraft of this family (see here).

How To Obtain

Upgradeable from: Shiden Kai 2Shiden Kai 2

Ranking reward for:

  • Sep 2019: 1-5 (★+4), 6-20 (★+4), 21-100 (★+2), 101-500 (★+1)
  • Jul 2021: 21-100 (★+2), 101-500 (★+1)

Event reward for:

Updates History

  • 2017-11-19: Implemented
  • 2021-09-28: Became improvable, visible bonuses added

Fit Bonuses

Ship Extra Requirement Firepower Torpedo Attack Anti-Air Anti-Submarine Warfare Line of Sight Armor Evasion Note
Suzuya Kou Kai NiSuzuya Kou Kai Ni
Kumano Kou Kai NiKumano Kou Kai Ni
Ryuuhou Kai Ni (E)Ryuuhou Kai Ni
Ryuuhou Kai Ni E
(★4-5) +1
(★6-7) +1 +2
(★8-9) +1 +2 +2
(★MAX) +2 +2 +2


Type Name Resource Day 2nd Ship Note
Fuel Ammunition Steel Bauxite Item Icon Development Material.png Item Icon Improvement Material.png # of equipment needed for that upgrade. An asterisk following the number indicates a different equipment is required. Sun Mon Tue Wed Thu Fri Sat
Fighter Shiden Kai 4 0 130 180 0 370 8/10 5/6 2xGreenPlane.png X X X Kumano Kou Kai NiKumano Kou Kai Ni
6 13/18 7/10 2xGreenPlane.png
10 - - -
Improvement Improved effects
Fighter 1★ 2★ 3★ 4★ 5★ 6★ 7★ 8★ 9★ Max★
Anti-Air 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0

See Also