10.2cm Triple Secondary Gun Mount

	[Edit] 10.2cm Triple Secondary Gun Mount No.566 10.2cm三連装副砲
	Secondary Gun Effects: +4 +1 +1 Short Scrap value: 2 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

ある時期において、紅茶の国の戦艦に副砲兵装として装備された、小口径三連装副砲です。
巡洋艦を駆逐する大型巡洋艦、大型軽巡洋艦として計画された Courageous級巡洋戦艦などにも搭載されました。
本砲は旧式化が進み、改装時に撤去または別装備に更新されます

At one point, this was a small-caliber triple secondary gun that was equipped as secondary armament on battleships from the land of tea.
It was also installed on large cruisers designed to destroy cruisers, and on the Courageous-class battlecruisers, which were planned as large light cruisers.
This gun is becoming increasingly outdated and will be removed or replaced with another weapon during refurbishment.

Mechanics

Secondary Guns Sec Sp_Sec serve a similar role to Main Guns. Their main stats are the "firepower" and "accuracy" . They are notably required to trigger some weaker Artillery Spotting attacks as well as some Night Cut-Ins, notably the "Double Attack" (DA).

They do not have any "Hidden Penalties" on any ships.
They bring an accuracy bonus against PT boats.

Notes

How To Obtain

Stock equipment of:

Base: Glorious (BC)

Event reward for:

Fall 2025 Event E-3: Hard (★+8), Medium (★+7), Easy (★+3)

Updates History

2025-10-29: Implemented

Fit Bonuses

10.2cm Triple Secondary Gun Mount Equipment Bonuses
Ship	Extra Requirement					Note
Courageous-class	(★0-6)	+2		+2	+2
	(★7)	+3		+2	+2
	(★8)	+3		+3	+2
	(★9)	+3		+3	+3
	(★MAX)	+3		+4	+3
	+ 2nd 38.1cm Mk.I Twin Gun Mount OR 38.1cm Mk.I/N Twin Gun Mount Kai	+3	+1	+1	+1	One-time
Other Royal Navy Vessels	(★0-6)	+1		+1
	(★7)	+2		+1
	(★8)	+2		+2
	(★9)	+2		+2	+1
	(★MAX)	+2		+3	+1

Improvement

Improvement effects
	1★	2★	3★	4★	5★	6★	7★	8★	9★	Max★
	0.2	0.4	0.6	0.8	1.0	1.2	1.4	1.6	1.8	2.0
	0.2	0.4	0.6	0.8	1.0	1.2	1.4	1.6	1.8	2.0
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

[Edit] 10.2cm Triple Secondary Gun Mount No.566 10.2cm三連装副砲
Secondary Gun Effects: +4 +1 +1 Short Scrap value: 2 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