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Prototype Shuusui

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Prototype Shuusui

No.351 試製 秋水

Interceptor Fighter Land-based Fighter

Effects: Anti-Air+2 Anti-Bomber+8

Combat Radius: 1

Scrap Value: Fuel4 Ammunition3 Steel1 Bauxite6

Equipment Card Prototype Shuusui.png

Equipment Character Prototype Shuusui.png

Equipment Item Prototype Shuusui.png

Equipment Full Prototype Shuusui.png

Refittable Class
Coastal Defense ShipDestroyer
Light CruiserTorpedo Cruiser
Heavy CruiserAviation Cruiser
BattleshipAviation Battleship
Fast BattleshipLight Carrier
Standard CarrierArmored Carrier
Seaplane TenderSubmarine Tender
SubmarineSubmarine Carrier
Repair ShipTraining Cruiser
Fleet OilerAmphibious Assault Ship



This is the world's first mass-produced rocket-powered fighter developed and put into service by the Country of Science. This is a Japanese-made prototype rocket-powered fighter developed jointly by the IJA and IJN based on valuable, but incomplete, blueprints brought back by the I-class submarine. It was made to intercept heavy bombers at distant, high altitudes that were difficult for regular aircraft with reciprocating engines.


Prototype Shuusui is considered in-game as a high altitude interceptor.

  • High Altitude Interceptors multiply the total air power of all land bases in Air Defense mode, when defending against enemy High-Altitude Bombers. The multiplier depends on the number of high altitude interceptors equipped and which difficulty the event map is played on:
Interceptor Fighter High Altitude Interceptors
Equipment Card Me 163B.png
Me 163B
Equipment Card Prototype Shuusui.png
Prototype Shuusui
Equipment Card Shuusui.png
Airpower modifier against high altitude raids:
Event Map
Number of High Altitude
Interceptors Defending
0 1 2 3+
Casual/Easy: 1x 1.1x 1.2x
Medium/Hard: 0.5x 0.8x

How To Obtain

From quests: B153 (choice)

Event reward for:

Ranking reward for:

  • Jul 2019: 1-5, 6-20, 21-100, 101-500

Updates History

  • 2019-08-28: Implemented as ranking reward

See Also