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15.5cm Triple Secondary Gun Mount

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No.12 15.5cm三連装副砲
YellowGun.png Secondary Gun
Effects: Firepower+7 AA+3 Accuracy+2 RangeMedium
Scrap value: Ammo 2 Steel 5 (Buildable)

Equipment Card 15.5cm Triple Secondary Gun Mount.png

Equipment Character 15.5cm Triple Secondary Gun Mount.png

Equipment Item 15.5cm Triple Secondary Gun Mount.png

Equipment Full 15.5cm Triple Secondary Gun Mount.png

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

Mechanics

Secondary GunsSecondary GunSecondary High-Angle GunSecLarge Secondary High-Angle GunSp_Sec serve a similar role to Main Guns. Their main stats are the "firepower" Firepower and "accuracy" Accuracy. They are notably required to trigger some weaker Artillery Spotting attacks as well as some Night Cut-Ins, notably the "Double Attack" (DA).

Can be equipped in the RE of certain ships.

Notes

How To Obtain

Buildable

Stock equipment of: Haruna KaiHaruna Kai, Hiei KaiHiei Kai, Kirishima KaiKirishima Kai, Kongou KaiKongou Kai, MusashiMusashi, YamatoYamato

From quest: Cy9 (x2, choice)

Uses

Used to improve: 15.5cm Triple Secondary Gun Mount15.5cm Triple Secondary Gun Mount, 15.5cm Triple Secondary Gun Mount Kai15.5cm Triple Secondary Gun Mount Kai, 15.5cm Triple Gun Mount Kai15.5cm Triple Gun Mount Kai, 15.2cm Triple Gun Mount15.2cm Triple Gun Mount

Updates History

Fit Bonuses

15.5cm Triple Secondary Gun Mount Equipment Bonuses
Ship Extra Requirement Firepower Torpedo Attack Anti-Air Anti-Submarine Warfare Line of Sight Armor Accuracy Evasion Note
Yamato-classYamato
Musashi
- +1 +1 +1
+ 15m Duplex Rangefinder + Type 21 Radar Kai 215m Duplex Rangefinder + Type 21 Radar Kai 2 OR 15m Duplex Rangefinder Kai + Type 21 Radar Kai 2 + Skilled Fire Direction Center15m Duplex Rangefinder Kai + Type 21 Radar Kai 2 + Skilled Fire Direction Center +1 +1 One-time

Improvement

YellowGun.png 15.5cm Triple Secondary Gun Mount

Improvement Conversion
★ Improvement
Level
0~5 6~9
Equipment Card 15.5cm Triple Secondary Gun Mount Kai.png
15.5cm Triple Secondary Gun Mount Kai
Development material Consumed 2/2 2/3 8/12
Improvement material Consumed 2/3 2/4 4/8
Equipment
Consumed
- Equipment Card 15.5cm Triple Secondary Gun Mount.png Equipment Card 15.5cm Triple Secondary Gun Mount.pngx2
Items
Consumed
- Item Icon New Model Gun Mount Improvement Material.png
Resources Fuel10 Ammunition90 Steel120 Bauxite0
Ship Helper Conversion
Ship Banner Yamato.png
Yamato/Kai/Ni/Juu
Equipment Card 15.5cm Triple Secondary Gun Mount Kai.png
15.5cm Triple Secondary Gun Mount Kai
Mon Tue Wed Thu Fri Sat Sun
Ship Banner Musashi.png
Musashi
Mon Tue Wed Thu Fri Sat Sun
Ship Banner Musashi Kai.png
Musashi Kai
Mon Tue Wed Thu Fri Sat Sun
Ship Banner Musashi Kai Ni.png
Musashi Kai Ni
Mon Tue Wed Thu Fri Sat Sun
Improvement Improved effects
Secondary Gun 1★ 2★ 3★ 4★ 5★ 6★ 7★ 8★ 9★ Max★
Firepower 0.3 0.6 0.9 1.2 1.5 1.8 2.1 2.4 2.7 3.0
Night Battle Power 0.3 0.6 0.9 1.2 1.5 1.8 2.1 2.4 2.7 3.0
Accuracy Day 1.00 1.41 1.73 2.00 2.23 2.44 2.64 2.82 3.00 3.16
Accuracy Night 1.30 1.84 2.25 2.60 2.91 3.18 3.44 3.68 3.90 4.11

Trivia

According to here, the Mogami-class and eventually the Tone-class were supposed to have the gun, but when the practical use was seen in Yamato-class and Oyodo, it then remained as part of the battleship's main weaponry. One factor for the gun design change was that the gun was supposed to have an additional 75 ° for AA firing on top of the main 45 degrees for general firing, but this was switched to +55 degrees for the reasoning that it was too inefficient.

The "Achilles' heel" portion refers to the relatively inferior armor thickness of the turret part, albeit being colossally improved compared to casemate guns of other Japanese battleships (Fuso-class to Nagato-class).

See Also