12.7cm Twin Gun Mount
|Coastal Defense Ship||Destroyer|
|Light Cruiser||Torpedo Cruiser|
|Heavy Cruiser||Training Cruiser|
|Aviation Cruiser||Fast Battleship|
|Light Carrier||Standard Carrier|
|Armored Carrier||Seaplane Tender|
|Submarine||Aircraft Carrying Submarine|
|Submarine Tender||Fleet Oiler|
|Repair Ship||Amphibious Assault Ship|
"The main gun of fleet destroyers. Shielded for defense toward splinters as well as bad weathers and equipped with powered turrets, this modern main gun for small vessels was equipped on most fleet destroyers. Due to its low elevation angle, anti-air firing is not its forte."
Buildable. Not to be confused with the 12.7cm Naval Gun.
The main gun for most Japanese destroyers post-Mutsuki class except the Akizuki, Matsu and Tachibana classes. Has four major variants denoted A, B, C, D respectively (A being the oldest), the main differences between the variants being their weight and the gun's elevation angle. Type A only had 40deg. and was extremely helpless when it came to AA firing. Maximum elevation angle was raised to 75 degrees for the B- and D-type while C-type had 55 degrees, but its loading sequence required hand ramming and the firing rate at a high elevation angle was very low, making Japanese destroyers vulnerable to aerial attacks.
|Improvement Cost: 10 30 60||★||S||M||T||W||T||F||S||Helper Ship|
|Consumes: 1x 12.7cm Twin Gun Mount||6|
|Consumes: 2x 12.7cm Twin Gun Mount|
Produces: 1x 12.7cm Twin Gun Mount Model B Kai 2