Bofors 40mm Quadruple Autocannon Mount

[Edit] Bofors 40mm Quadruple Autocannon Mount No.173 Bofors 40mm四連装機関砲
Anti-Aircraft Gun Effects: +1 +11 +1 +1 +2 Scrap value: 6 1 3 (Unbuildable)
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

北欧生まれの世界的ベストセラーの40mm対空機関砲、その艦載四連装バージョンです。
ベースとなった傑作機関砲は、彼我含めて多くの国々に採用されました。
優れた中～近距離近接対空火器として、米英海軍艦艇にも装備されました。

The shipborne, quadruple-mounted version of the Nordic-created worldwide bestselling 40 mm anti-air autocannon.
The base version of the gun was considered a masterpiece and as such was adopted by many countries including the enemy forces.
Proving to be excellent at short-range surface-to-air fire, it was equipped on many US and British Navy vessels as well.

Mechanics

AA Guns are equippable in RE. They are mainly used to provide "Anti-Air", notably via their AA stat. They:

• Are notably required in most AACI.
• Trigger a tracer-fire effect during air combat.
• Bring an accuracy bonus against PT boats.

Notes

Not to be confused with other guns of this manufacturer (see here).

How To Obtain

Stock equipment of: Gotland Kai, Gotland Andra (★+4), Iowa Kai

Ranking reward for:

• Mar 2016: 1-5, 6-20, 21-100, 101-500

Event reward for:

• Spring 2016 Event E-3: Hard

Updates History

• 2016-04-25: Implemented as ranking reward
• 2020-09-17: Stats increased: +10 → +11

Improvement

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
	1.2	1.69	2.07	2.40	2.68	2.93	3.17	3.39	3.60	3.79
[math]\displaystyle{ \text{AdjAA}_\text{ship} }[/math]	6.00	8.49	10.39	12.00	13.42	14.70	15.87	16.97	18.00	18.97
Torpedo	2.00	2.82	3.46	4.00	4.47	4.89	5.29	5.65	6.00	6.32

See also

• Bofors 40 mm L/60 gun