12.7cm Twin Gun Mount

	[Edit] 12.7cm Twin Gun Mount No.2 12.7cm連装砲
	Small Caliber Main Gun Effects: +2 +2 Short Scrap value: 1 2 (Buildable)
	Refittable Ship Types
Fast Battleship	Battleship
Aviation Battleship	Standard Aircraft Carrier
Armored Carrier	Light Carrier
Heavy Cruiser	Aviation Cruiser
Light Cruiser	Torpedo Cruiser
Training Cruiser	Destroyer
Coastal Defense Ship	Submarine
Aircraft Carrying Submarine	Seaplane Tender
Fleet Oiler	Submarine Tender
Repair Ship	Amphibious Assault Ship

Introduction

艦隊型駆逐艦の主砲です。
防盾で全周を遮蔽、弾片や荒天対策を施しており、また動力操法も採用した近代的な小型艦の主砲で、多くの主力駆逐艦に採用されました。
あまり仰角はとれず、対空射撃は少し苦手です。

The main gun of fleet destroyers.
It has an enclosed, shielded turret that protects it against shrapnel and stormy weather. It also has powered turrets. It served as the main gun of modern small ships and many frontline destroyers.
It isn't good at anti-air because of its low maximum elevation.

Mechanics

Main Guns are the main armament used by surface ships. Their main stats are the "firepower" and "accuracy" . They are notably required to trigger all Artillery Spotting attacks as well as some Night Cut-Ins, notably the "Double Attack" (DA).

Most main guns come with "Hidden Fit Bonuses/Penalties", especially larger ones.
Small Caliber Main Guns bring some accuracy bonus against PT boats.

Notes

How To Obtain

Buildable

Stock equipment of: Akatsuki , Akebono , Akigumo , Akishimo , Amagiri , Amatsukaze , Arare , Arashio , Arashi , Ariake , Asagumo , Asashimo , Asashio , Ayanami , Chitose Kai , Chiyoda Kai , Fujinami , Hagikaze , Hamakaze , Hamanami , Harusame , Hatsuharu , Hatsukaze , Hatsushimo , Hayanami , Hayashimo , Hibiki , Ikazuchi , Inazuma , Isokaze , Kagerou , Kasumi , Kawakaze , Kazagumo , Kishinami , Kiyoshimo , Kuroshio , Maikaze , Makigumo , Makinami , Michishio , Minegumo , Murasame Kai , Murasame , Naganami , Nenohi , Nowaki , Oboro , Okinami , Ooshio , Oyashio , Sagiri , Samidare , Sazanami , Shigure , Shikinami , Shimakaze , Shiranui , Shiratsuyu , Suzukaze , Suzunami , Takanami , Tanikaze , Tokitsukaze , Umikaze , Urakaze , Ushio , Wakaba , Yamagumo , Yamakaze , Yukikaze , Yuudachi Kai , Yuudachi , Yuugumo , Hayashio

Uses

Used to improve: 12.7cm Twin Gun Mount , 12.7cm Twin Gun Mount Model B Kai 2 , 12.7cm Single Gun Mount , 120mm/50 Twin Gun Mount , 12.7cm Single High-angle Gun Mount (Late Model) , 12.7cm Twin Gun Mount Model C Kai 2 , QF 4.7inch Gun Mk.XII Kai , 130mm B-13 Twin Gun Mount , 12.7cm Twin Gun Mount Model A 12.7cm Twin Gun Mount Model C Kai 3

Used by quest: F96

Updates History

2013-04-23: Implemented with initial game release
2014-10-24: Became improvable and upgradeable to 12.7cm Twin Gun Mount Model B Kai 2
2018-06-29: Became upgradeable to 12.7cm Twin Gun Mount Model A Kai 2
2018-08-17: No longer upgradeable to 12.7cm Twin Gun Mount Model A Kai 2 , card CG updated

Improvement

Type	Name	★	Resource							Day							2nd Ship	Note
Type	Name	★								Sun	Mon	Tue	Wed	Thu	Fri	Sat	2nd Ship	Note
	12.7cm Twin Gun Mount	0	10	30	60	0	1/2	1/2	-	✓	✓	✓	✓	✓	✓	✓	-	Upgrades to 12.7cm Twin Mount Type-B Kai 2
		6					1/2	1/2	1x
		10					2/3	3/6	2x

Improvement effects
	1★	2★	3★	4★	5★	6★	7★	8★	9★	Max★
	1.00	1.41	1.73	2.00	2.23	2.44	2.64	2.82	3.00	3.16
	1.00	1.41	1.73	2.00	2.23	2.44	2.64	2.82	3.00	3.16
Day	1.00	1.41	1.73	2.00	2.23	2.44	2.64	2.82	3.00	3.16
Night	1.30	1.84	2.25	2.60	2.91	3.18	3.44	3.68	3.90	4.11

Trivia

The main gun for most post-Mutsuki class Japanese destroyers save for the Akizuki, Matsu, and Tachibana classes. Had four major variants denoted A, B, C, and D respectively (A being the oldest), the main differences between the variants being the weight and the gun's elevation angle. Type A was limited to 40deg. elevation and was quite useless when it came to the AA role. The maximum elevation angle was raised to 75deg. for the B- and D-types while the C-type was capable of 55deg. Unfortunately, the firing rate at high elevation angles was very low since the loading sequence required hand ramming, which made Japanese destroyers vulnerable to aerial attacks.