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41cm Twin Gun Mount

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41cm Twin Gun Mount

No.8 41cm連装砲

Large Caliber Main Gun Large Caliber Main Gun

Effects: Firepower+20 Anti-Air+4

Scrap Value: Ammunition12 Steel20





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



Developed by Kure Naval Arsenal's Artillery Division, this is the first entirely domestic battleship gun.
At a little over 16 inches (40.6cm), this 41cm gun was the largest battleship gun in the world until the introduction of the Yamato-class' 46cm guns.
It was equipped on Nagato and Mutsu who it was praised by many fans as two of the great power's "Big 7".

Developed for the IJN's first 'Eight-Eight Fleet Program' in 1910, in which Japan initially intended to build eight battleships and eight armored cruisers. The Washington Naval Treaty of 1922 scrapped the various plans for other ships to carry this gun, leaving the Nagato-class as the sole class. 


Buildable. Stock equipment of Nagato (And Nagato Kai), Mutsu (And Mutsu Kai) and all Kongou-Class Kai and Kai Ni.

See Also

41 cm/45 3rd Year Type naval gun
Eight-Eight Fleet Program