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15.2cm Single Gun Mount

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15.2cm Single Gun Mount

No.11 15.2cm単装砲

Secondary Gun Secondary Gun

Effects: Firepower+2 Accuracy+1 Range Medium

Scrap Value: Ammunition2 Steel2

Equipment Card 15.2cm Single Gun Mount.png

Equipment Character 15.2cm Single Gun Mount.png

Equipment Item 15.2cm Single Gun Mount.png

Equipment Full 15.2cm Single 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



Knocking down British-made gun, this weapon was utilised as secondary gun on Kongo-class and Fuso-class. After Ise-class the renewed, lightened variant of 14cm caliber was adapted. Anti-air firing was impossible; during later modernisations these guns either gave their way to anti-air weapons or were taken down for weight reduction.


How To Obtain


Stock equipment of FusouFusou, HarunaHaruna, HieiHiei, KirishimaKirishima, KongouKongou, YamashiroYamashiro

Updates History

Akashi's Improvement Arsenal

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
Secondary Gun 15.2cm Naval Gun 0 10 60 90 0 2/2 1/2 - K
Y X X K Kongou
Upgrades to 15.2cm Twin Gun Mount.
6 2/3 2/3 1xYellowGun.png
10 3/4 3/5 2xYellowGun.png


The 15.2cm guns were originally designed by Vickers as secondary weapons for the battlecruiser Kongo, which was built in Britain by Vickers-Armstrong (Barrow). The Japanese version was designed by Engineer Hata Chiyokichi and adopted in 1908. In the Japanese Navy, Vickers built guns were designated as Mark II while those built in Japan were designated as Mark III. The design itself was outstanding at its time, but 15.2cm shell proved too heavy for Japanese sailors and had inferior firing rate (circa 6rpm), thus the lighter variant of 14cm caliber was later designed in-house.

When the Kongo-class was modernized in the 1930s, these guns were removed and reused on the Agano-class light cruisers in new twin mountings. There are also some coastal defense batteries at Guam were also equipped with these weapons.

This type of gun comes in a casemate mounting and would be mounted in an armored room along the side of the ship known as a casemate. Casemates too close to the waterline or too close to the bow of the ship were prone to flooding thus making the gun ineffective.

See Also

15 cm/50 41st Year Type