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41cm Triple Gun Mount Kai 2

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41cm Triple Gun Mount Kai 2

No.290 41cm三連装砲改二

Large Caliber Main Gun Large Caliber Main Gun

Effects: Firepower+23 Anti-Air+6 Accuracy+5

Scrap Value: Ammunition20 Steel22 Bauxite6





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



An improved version of a triple main battery for purely domestic battleships that was developed at the artillery department of the Kure Naval Arsenal. It may be a fictitious armament, but it's supposed to be modified version of said gun with reduced weight as well as a fully developed fire control system, turning it into a battleship main armament that has been optimised as equipment for aviation battleships, especially the Ise-class aviation battleships. The Ise-class K2 in particular, after undergoing its large-scale refit, will show its full potential.


Unlike most guns, the 41cm Triple Gun Mount Kai Ni gives special bonus benefits when equipped to Ise, Hyuuga, Fusou and Yamashiro which are as follows:

When equipping this gun long with an Air Radar, the following bonuses are provided to the Ise-class:

Overall, using the gun in combination with an air radar will provide Ise and Hyuuga a total of +2 Icon Gun.png , +4 Icon AA.png, +4 Icon Evasion.png

Stacking effect from multiple 41cm Triple Gun Mount Kai Ni is TBD.

See Also