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Prototype 41cm Triple Gun Mount

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Prototype 41cm Triple Gun Mount

No.105 試製41cm三連装砲

Large Caliber Main Gun Large Caliber Main Gun

Effects: Firepower+22 Anti-Air+5 Accuracy+2

Scrap Value: Ammunition14 Steel22

Equipment Card Prototype 41cm Triple Gun Mount.png

Equipment Character Prototype 41cm Triple Gun Mount.png

Equipment Item Prototype 41cm Triple Gun Mount.png

Equipment Full Prototype 41cm Triple Gun Mount.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



A triple-mounted domestic battleship main gun prototyped by Kure Naval Arsenal's Artillery Division.
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.
When equipped on the Nagato-class battleships, they would have had firepower and accuracy far exceeding that of any Big 7 from the other great powers.


Stock equipment of Fusou Kai Ni and Yamashiro Kai Ni.

Unbuildable. Can be upgraded from 41cm Twin Gun Mount.

Akashi's Improvement Arsenal

Type Name Resource Day 2nd Ship Note
Fuel Ammunition Steel Bauxite Development material.png Improvement Materials.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
Large Caliber Main Gun Prototype 41cm Triple Gun Mount 0 40 440 620 40 5/7 4/6 2xRedGunHeavy.png N N M1
N M1
Nagato Kai
Mutsu Kai
Mutsu Kai Ni
Upgrades to 41cm Triple Gun Mount Kai.
6 8/10 5/8 3xRedGunHeavy.png
10 15/30 12/16 2xRedGunHeavy.png
2xItem Icon New Model Gun Mount Improvement Material.png

See also