Changes

==Introduction==

==Introduction==

旧型の小型砲です。<br />

旧型の小型砲です。<br>

旧型駆逐艦に標準的主砲として搭載されました。<br />

旧型駆逐艦に標準的主砲として搭載されました。<br>

装填・操砲も人力ですが、シンプルな構造で経済性も高く、駆逐艦や海防艦等の主砲として、長く使われました。<br />

装填・操砲も人力ですが、シンプルな構造で経済性も高く、駆逐艦や海防艦等の主砲として、長く使われました。<br>

対空射撃には不向きです。<br />

対空射撃には不向きです。<br>

''This is an old model small calibre gun. <br>It was equipped on older destroyers as their main armament. <br> Both loading and rotation was manual, but with its simple construction and low cost, it served a long time as main weapon of destroyers and coastal defense ships. It cannot be used for anti-air.''

''This is an old model small-caliber gun.<br>It was equipped on older destroyers as their main armament.<br> Both loading and rotation were manual, but with its simple construction and low cost, it served a long time as the main weapon of destroyers and coastal defense ships. It cannot be used for anti-air.''

==Notes==

==Notes==

|Sat=✓

|Sat=✓

|2ndShip=[[Mutsuki]]<br>[[Kisaragi]]

|2ndShip=[[Mutsuki]]<br>[[Kisaragi]]

|Notes=<br>Uses 12cm Single Gun Mount for improvement up to ★+10 <br>Uses [[Type 22 Surface Radar]] to upgrade into [[12cm Naval Gun Kai 2]].

|Notes=<br>Uses 12cm Single Gun Mount for improvement up to ★+10<br>Uses [[Type 22 Surface Radar]] to upgrade into [[12cm Naval Gun Kai 2]].

}}

}}

|}

|}

==Trivia==

==Trivia==

This gun's basic structure was based on the British [[wikipedia:QF 4.7-inch Gun Mk I–IV|QF 4.7in. Mk.IV gun]], which was later produced domestically in Japan. The barrel of this gun was later mated to a high-angle mounting and served as AA guns for early Japanese heavy cruisers (ie. Furutaka-class to Takao-class. Both classes had their AA guns exchanged for [[12.7cm Twin High-angle Mount|12.7cm twin]] afterwards, but Chokai alone was equipped with 12cm singles throughout her career).

This gun's basic structure was based on the British [[wikipedia:QF 4.7-inch Gun Mk I–IV|QF 4.7in. Mk.IV gun]], which was later produced domestically in Japan. The barrel of this gun was later mated to a high-angle mounting and served as AA guns for early Japanese heavy cruisers (ie. Furutaka-class to Takao-class. Both classes had their AA guns exchanged for [[12.7cm Twin High-angle Mount|12.7cm twin]] afterward, but Chokai alone was equipped with 12cm singles throughout her career).

==See Also==

==See Also==