15.5cm Triple Secondary Gun Mount Kai
[Edit]
No.234 15.5cm三連装副砲改
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 Secondary GunEffects:
 +7  +5  +4  +1  MediumScrap value:
 3  6  1 (Unbuildable) | |
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| 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 |
Introduction
巡洋艦主砲だったものを大型戦艦の副砲として転用しました。
「大和」型戦艦に搭載され、対空戦も可能な、性能・運用性ともに優秀な戦艦副砲となりました。
防御面においては、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。
本副砲は、同砲を「大和」型副砲として運用、改修と最適化を施した改良型装備です。
The cruiser's main gun array that was converted for use as battleship secondaries.
Loaded on the "Yamato-class" battleships, they became capable battleship secondaries, boasting anti-air capabilities, efficiency, and traverse speed.
There are differing opinions about the defensive plating, but it was pointed out as a "Yamato-class' Achilles' Heel".
This turret has been improved and optimized for use as secondaries on the "Yamato-class".
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 Imps.
Can be equipped in the RE of certain ships.
Notes
How To Obtain
Upgradeable from: 15.5cm Triple Secondary Gun Mount
, 15.5cm Triple Gun Mount Kai
★+7
Ranking reward for:
- Apr 2022: 1-5 (★+10), 6-20 (★+9), 21-100 (★+8), 101-500 (★+8)
Updates History
- 2017-06-23: Implemented
- 2017-10-25: Stats increased:
+4 +3 → +5 +4 - 2022-05-27: Became possible to equip in Yamato-class Kai Ni's expansion slots
- 2022-06-08: Visible bonuses added, became upgradeable to 15.5cm Triple Secondary Gun Mount Kai Ni
Fit Bonuses
| Ship | Extra Requirement |
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Note |
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Yamato-class 
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+1 | +1 | +1 | +1
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+ 15m Duplex Rangefinder + Type 21 Radar Kai Ni OR 15m Duplex Rangefinder Kai + Type 21 Radar Kai Ni + Skilled Fire Direction Center
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+1 | +1 | +1, One-time
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Improvement
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| Improvement | → | Conversion (helper-dependent) | ||||
| ★ Improvement Level |
0~5 | 6~9 |  15.5cm Triple Gun Mount Kai ★7 |
 15.5cm Triple Secondary Gun Mount Kai 2 | ||
 Consumed
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6/7 | 8/9 | 9/10 | 10/15 | ||
 Consumed
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4/5 | 5/7 | 2/3 | 7/10 | ||
| Equipment Consumed |
 x2
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 x2
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| Items Consumed |
- | - |  x2  x2
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| Resources |  15  120  150  30
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Improvement  effects
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1★ | 2★ | 3★ | 4★ | 5★ | 6★ | 7★ | 8★ | 9★ | Max★ |
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0.3 | 0.6 | 0.9 | 1.2 | 1.5 | 1.8 | 2.1 | 2.4 | 2.7 | 3.0 |
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0.3 | 0.6 | 0.9 | 1.2 | 1.5 | 1.8 | 2.1 | 2.4 | 2.7 | 3.0 |
| Day
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1.00 | 1.41 | 1.73 | 2.00 | 2.23 | 2.44 | 2.64 | 2.82 | 3.00 | 3.16 |
| Night
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1.30 | 1.84 | 2.25 | 2.60 | 2.91 | 3.18 | 3.44 | 3.68 | 3.90 | 4.11 |