10cm Twin High-angle Gun Mount

[Edit] 10cm Twin High-angle Gun Mount No.3 10cm連装高角砲
Small Caliber Main Gun Effects: +2 +7 Short Scrap value: 1 3 (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

防空型駆逐艦の主砲です。
画期的な長砲身半自動装填砲を動力砲塔に備えた「長10cm」と呼ばれた新型の防空用高角砲で、
「秋月」型駆逐艦に搭載されました。
複雑な構造のため量産には不向きでしたが、敵機の跳梁を抑える艦隊防空の切り札の一つです。

This is the main gun of the anti-air destroyers.
It is a groundbreaking new model anti-air high-angle gun with a long barrel, semi-automatic loading, and a powered turret. It was equipped on the Akizuki-class destroyers.
Its complex design made it difficult to mass-produce, but it was a key part of the fleet's defense against the air superiority of enemy aircraft.

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.

High-Angle Guns (sometimes "dual-purpose guns"), are anti-air focused guns, that can serve their main surface role, in addition to having extra AA stats.

• They are notably required in most AACI.

Notes

Not to be confused with 10cm Twin High-angle Gun Mount (Carriage).

How To Obtain

Buildable

Stock equipment of: Arashio Kai, Asashio Kai, Hamakaze B Kai, Hatsukaze Kai, Isokaze B Kai, Kagerou Kai, Kasumi Kai, Kuroshio Kai, Maikaze Kai, Michishio Kai, Ooshio Kai

From quest: F72 (x2, choice)

Uses

Used to improve: 12.7cm Twin High-angle Gun Mount, 8cm High-angle Gun, Type 91 Anti-Aircraft Fire Director, Type 94 Anti-Aircraft Fire Director, 10cm Twin High-angle Gun Mount + Anti-Aircraft Fire Director, 90mm Single High-angle Gun Mount, 8cm High-angle Gun Kai + Additional Machine Guns, 12.7cm Twin Gun Mount Model D Kai 2, 10cm Twin High-angle Gun Mount Kai + Additional Machine Guns, 5inch Single Gun Mount Mk.30, 12.7cm Twin Gun Mount Model A Kai 2, 12.7cm Twin Gun Mount Model A Kai 3 (Wartime Modification) + Anti-Aircraft Fire Director, 10cm Twin High-angle Gun Mount Battery Concentrated Deployment, 10cm Twin High-angle Gun Mount (Carriage)

Used by quest: F76, F77, F78

Updates History

• 2013-04-23: Implemented with initial game release
• 2021-03-30: Visible bonuses added
• 2022-04-01: Became improvable and upgradable to 10cm Twin High-angle Gun Mount + Anti-Aircraft Fire Director

Fit Bonuses

10cm Twin High-angle Gun Mount Equipment Bonuses
Ship	Extra Requirement									Note
Hatsuzuki Kai Ni	-	+2		+2				+1	+2
Other Akizuki-class	-	+1		+2					+1

Improvement

10cm Twin High-angle Gun Mount/Improvement

Improvement effects
Main	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
[math]\displaystyle{ \text{AdjAA}_\text{ship} }[/math]	2.00	2.82	3.46	4.00	4.47	4.89	5.29	5.65	6.00	6.32
[math]\displaystyle{ \text{AdjAA}_\text{fleet} }[/math]	2.00	2.82	3.46	4.00	4.47	4.89	5.29	5.65	6.00	6.32
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

One of Japan's relatively successful anti-air weapons, being equipped on carrier Taihou, light cruiser Oyodo, and Akizuki-class destroyers (the illustration shows the turret-mounted variant seen on Akizuki-class; Oyodo and Taihou were equipped with carriage-mounted ones). Both muzzle velocity and operating speed were increased significantly compared to traditional destroyer guns, making it more effective toward enemy aircraft. In reality, its anti-surface ability was not as high due to accuracy and ammunition mass but in-game it has the same firepower stat as the twin 12.7cm. Although the gun proved effective, the Japanese Navy's anti-air ability still lagged behind as the anti-air fire control device was outdated. 

It is easily accessible in-game as many destroyers carry it as stock equipment; Chief Developer Mr. Tanaka once regretted that this weapon "was deployed rather too early, even before the Akizuki-class appeared in-game" in an interview.

See Also

10 cm/65 Type 98 naval gun