41cm Twin Gun Mount

	[Edit] 41cm Twin Gun Mount No.8 41cm連装砲
	Large Caliber Main Gun (41 cm) Effects: +20 +4 Long Scrap value: 12 20 (Buildable)
	Refittable Ship Types
Coastal Defense Ship	Destroyer
Light Cruiser	Torpedo Cruiser
Heavy Cruiser	Training Cruiser
Aviation Cruiser	Fast Battleship
Battleship	Aviation Battleship
Light Carrier	Standard Aircraft Carrier
Armored Carrier	Seaplane Tender
Submarine	Aircraft Carrying Submarine
Submarine Tender	Fleet Oiler
Repair Ship	Amphibious Assault Ship

Introduction

呉海軍工廠砲熕部で開発された初の純国産戦艦主砲です。
16インチ（40.6cm）を僅かに上回る、この41cm砲は「大和」型の46cm砲が登場するまで世界最大の戦艦砲でした。
これを搭載した「長門」「陸奥」は、当時世界列強の「ビッグ7」として、多くのファンに称えられていました。

Developed by Kure Naval Arsenal's Artillery Division, this is the first entirely domestic battleship gun.
At a little over 16 inches (40.6 cm), this 41 cm gun was the largest battleship gun in the world until the introduction of the Yamato-class' 46 cm guns.
It was equipped on Nagato and Mutsu who it was praised by many fans as two of the great power's "Big 7".

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.

Notes

How To Obtain

Buildable

Stock equipment of: Fusou Kai Ni , Haruna Kai , Hiei Kai Ni , Hiei Kai , Kirishima Kai Ni , Kirishima Kai , Kongou Kai Ni , Kongou Kai , Mutsu Kai Ni , Mutsu Kai (x2), Mutsu , Nagato Kai Ni , Nagato Kai (x2), Nagato , Yamashiro Kai Ni

From quest: A92 (x2, choice), B129 (x4, choice)

Uses

Used to improve: 41cm Twin Gun Mount , 38cm Twin Gun Mount , Prototype 35.6cm Triple Gun Mount , Prototype 41cm Triple Gun Mount , 38cm Twin Gun Mount Kai , Prototype 46cm Twin Gun Mount , 381mm/50 Triple Gun Mount Kai , 16inch Triple Gun Mount Mk.7 , 38.1cm Mk.I Twin Gun Mount , 38.1cm Mk.I/N Twin Gun Mount Kai , 30.5cm Triple Gun Mount , 41cm Triple Gun Mount Kai , 38cm Quadruple Gun Mount , 38cm Quadruple Gun Mount Kai , 51cm Twin Gun Mount , 41cm Triple Gun Mount Kai Ni , 41cm Twin Gun Mount Kai Ni , 16inch Mk.I Twin Gun Mount , 16inch Mk.V Twin Gun Mount , 16inch Mk.VIII Twin Gun Mount Kai , 16inch Triple Gun Mount Mk.6 , 16inch Triple Gun Mount Mk.6 mod.2 , 16inch Mk.I Triple Gun Mount , 16inch Mk.I Triple Gun Mount + AFCT Kai , 35.6cm Twin Gun Mount Kai

Used by quest: F74

Updates History

2013-04-23: Implemented with initial game release
2014-07-18: Card CG updated
2014-07-28: Hidden Fit Bonuses added
2014-12-01: Became improvable
2017-06-06: Became upgradeable to Prototype 41cm Triple Gun Mount

Improvement

41cm Twin Gun Mount
Improvement			→	Conversion
★ Improvement Level	0~5	6~9		Prototype 41cm Triple Gun Mount
Consumed	3/4	4/7		12/20
Consumed	2/3	3/6		10/15
Equipment Consumed		x2		x2
Items Consumed	-			x2
Resources	30 350 480 0

Ship Helper	Conversion
Nagato/Kai/Ni	Prototype 41cm Triple Gun Mount
Mon		Tue	Wed	Thu	Fri	Sat	Sun

Mutsu/Kai
Mon		Tue	Wed	Thu	Fri	Sat	Sun

Mutsu Kai Ni
Mon		Tue	Wed	Thu	Fri	Sat	Sun

Improvement effects
	1★	2★	3★	4★	5★	6★	7★	8★	9★	Max★
	1.50	2.12	2.59	3.00	3.35	3.67	3.96	4.24	4.50	4.74
	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

Developed for the IJN's first 'Eight-Eight Fleet Program' in 1910, in which Japan initially intended to build eight battleships and eight armored cruisers. The Washington Naval Treaty of 1922 scrapped the various plans for other ships to carry this gun, leaving the Nagato-class as the sole class.