[Edit]
No.12 15.5cm三連装副砲
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 Secondary GunEffects:
 +7  +3  +2  MediumScrap value:
 2  5 (Buildable) | |
Alternate names
Card name: 15.5cm Triple Gun Mount (Secondary Gun)
15.5cm三連装砲（副砲） | |
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| 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
巡洋艦の主砲だったものを、戦艦の副砲として活用しました。
「大和」型に搭載され、対空戦も可能な、性能・運用ともに優秀な戦艦副砲となりました。
砲塔部の装甲が薄いのが玉に傷で、諸説ありますが「大和」型の唯一の弱点という指摘もありました。
Although designed to be a part of the cruiser's main battery, it saw a more practical use as the battleship's secondary armament. The Yamato-class was designed with this, for potential use as an anti-aircraft gun, however, its combined ability and performance were outstanding enough to be used as the battleship's secondary armament. However, the turret section's armor was very thin, resulting in various rumors about it being the Yamato-class' Achilles' heel when pointed out.
Notes
How To Obtain
Buildable
Stock equipment of Haruna Kai
, Hiei Kai
, Kirishima Kai
, Kongou Kai
, Musashi
, Yamato
Uses
Updates History
- 2013-04-23: Implemented with initial game release
- 2017-06-23: Became improvable and upgradeable to 15.5cm Triple Secondary Gun Mount Kai
- 2022-06-01: Became possible to equip in Yamato-class Kai Ni's expansion slots
- 2022-06-08: Visible bonuses added
Fit Bonuses
| 15.5cm Triple Secondary Gun Mount Equipment Bonuses | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Ship | Extra Requirement | 
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Note | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Yamato-class
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- | +1 | +1 | +1 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
+ 15m Duplex Rangefinder + Type 21 Radar Kai 2 OR 15m Duplex Rangefinder Kai + Type 21 Radar Kai 2 + Skilled Fire Direction Center
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+1 | +1 | One-time | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Akashi's Improvement Arsenal
| Type | Name | ★ | Resource | Day | 2nd Ship | Note | ||||||||||||
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Sun | Mon | Tue | Wed | Thu | Fri | Sat | |||||
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15.5cm Triple Gun Mount (Secondary) | 0 | 10 | 90 | 120 | 0 | 2/2 | 2/3 | - | M | X | X | X | X | Y M |
Y M |
Yamato Musashi |
Musashi Kai Ni can NOT improve this gun. Upgrades to 15.5cm Triple Gun Mount Kai (Secondary). |
| 6 | 2/3 | 2/4 | 1x
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| 10 | 8/12 | 4/8 | 2x 1x 
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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 degrees 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
15.5cm/60 3rd Year Type Naval Gun