Changes

''This is a slightly improved version of the main guns of fleet destroyers.<br>Similar to the base model, it has a shielded, enclosed turret that protects against shrapnel and stormy weather. This version has had its maximum elevation improved.<br>It was equipped on the destroyer Yuudachi.

''This is a slightly improved version of the main guns of fleet destroyers.<br>Similar to the base model, it has a shielded, enclosed turret that protects against shrapnel and stormy weather. This version has had its maximum elevation improved.<br>It was equipped on the destroyer Yuudachi.

==Notes==

==Notes==

'''Upgradeable from:''' {{Equipment/Link|12.7cm Twin Gun Mount}}

'''Upgradeable from:''' {{Equipment/Link|12.7cm Twin Gun Mount}}

'''From quest:''' [[Quests#B112|B112]] (x2, choice), [[Quests#B124|B124]] (x3, choice), [[Quests#C42|C42]] (choice)

'''From quest:''' {{Q|B112}} (x2, choice), {{Q|B124}} (x3, choice), {{Q|C42}} (choice)

''Ranking reward for:''

''Ranking reward for:''

'''Used to improve:''' {{Equipment/Link|12.7cm Twin Gun Mount Model B Kai 2}}, {{Equipment/Link|12.7cm Twin Gun Mount Model C Kai 2}}, {{Equipment/Link|QF 4.7inch Gun Mk.XII Kai}}, {{Equipment/Link|12.7cm Twin Gun Mount Model B Kai 4 (Wartime Modification) + Anti-Aircraft Fire Director}}

'''Used to improve:''' {{Equipment/Link|12.7cm Twin Gun Mount Model B Kai 2}}, {{Equipment/Link|12.7cm Twin Gun Mount Model C Kai 2}}, {{Equipment/Link|QF 4.7inch Gun Mk.XII Kai}}, {{Equipment/Link|12.7cm Twin Gun Mount Model B Kai 4 (Wartime Modification) + Anti-Aircraft Fire Director}}

'''Used by quest:''' [[Quests#F78|F78]]

'''Used by quest:''' {{Q|F78}}

===Updates History===

===Updates History===

==Fit Bonuses==

==Fit Bonuses==

{{:{{PAGENAME}}/Bonuses}}

{{/Bonuses}}

==Improvement==

==Improvement==

This gun is the modified version of the twin-gun ''Model B'' which was used by Ayanami-class and Akatsuki-class destroyers. The main difference between Type A and Type B is that instead of the former's elevation range of −5° to +40°, type B's range is upgraded to 75°, which is required for the more complicated and effective AA systems installed on newer destroyers. Type B armor, however, was too thin to withstand heavy seas and splinter damage, thus the Type B Kai was introduced, adding more protection.

This gun is the modified version of the twin-gun ''Model B'' which was used by Ayanami-class and Akatsuki-class destroyers. The main difference between Type A and Type B is that instead of the former's elevation range of −5° to +40°, type B's range is upgraded to 75°, which is required for the more complicated and effective AA systems installed on newer destroyers. Type B armor, however, was too thin to withstand heavy seas and splinter damage, thus the Type B Kai was introduced, adding more protection.

First mounted on [[Hatsuharu]]-class destroyers, but the effectiveness is unknown.

First mounted on {{Class|Hatsuharu}} destroyers, but the effectiveness is unknown.

==See Also==

==See Also==