12.7cm Twin Gun Mount Model D Kai 3
[Edit]
No.366 12.7cm連装砲D型改三
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 Small Caliber Main GunEffects:
 +3  +4  +1  +2  +2  +2  ShortScrap value:
 2  3  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
夕雲型駆逐艦などに搭載された駆逐艦主砲のif改修型です。
対空戦闘用に最大仰角を大きくとることに加え、装填システムを改良、仰角時の装填と発射速度の向上に成功したif改良D型主砲です。
数々の実戦の戦訓を取り入れた改修により、甲型及び改甲型駆逐艦での運用において、優れた戦闘力を発揮します。
A what-if version of the destroyer main guns that were mounted on the Yuugumo-class destroyers.
It had an increased maximum elevation for anti-aircraft use as well as improved loading and firing speed at maximum elevation.
It incorporates many lessons learned in combat and will have outstanding performance on Type-A and Improved Type-A destroyers.
Mechanics
Main Guns
are the main armament used by surface ships. Their main stats are the "firepower" 
and "accuracy" 
. They are notably required to trigger all Artillery Spotting attacks as well as some Night Cut-Ins, notably the "Double Attack" (DA).
- Most main guns come with "Hidden Fit Bonuses/Penalties", especially larger ones.
- Small Caliber Main Guns bring some accuracy bonus against PT Imp.
- Gives additional bonuses for certain New Night Cut-Ins.
Notes
How To Obtain
From quest: F120
Ranking reward for:
- Jan 2023: 1-5, 6-20
- Aug 2023: 1-5 (★+4), 6-20 (★+3)
Event reward for:
- Hinamatsuri 2020 Mini-Event E-1: Hard (★+4), Medium
Updates History
- 2020-03-03: Implemented
- 2022-07-13: Visible bonuses increased
Fit Bonuses
| Ship | Extra Requirement |
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Note |
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Yuugumo-class               
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+2 | +1 | |||||||
Akigumo Kai Ni Yuugumo-class Kai Ni       
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(★0-4) | +3 | +1 | ||||||
| (★5-7) | +3 | +1 | +1, Added 2022-07-13
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| (★8-9) | +4 | +1 | +1, Added 2022-07-13
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| (★MAX) | +4 | +1 | +2, Added 2022-07-13
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| Takanami Kai Ni
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+1 | ||||||||
| + 1st equipped | +1 | +3 | +1 [1]
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| + 2nd equipped | +2 | +2 | [2] | ||||||
| + LOS Radar | +2 | +4 | +2 | +2 [3]
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| + AIR Radar | +1 | +5 | +3 | +1 [4]
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| Okinami Kai Ni , Akigumo Kai Ni
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+1 | +2 | +1 | Non-stackable | |||||
Akigumo Kai Ni + Skilled Lookouts
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+2 | +2 | +3 | ||||||
Akigumo Kai Ni + Searchlight
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+3 | -3 | |||||||
Shimakaze
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+2 | +1 | |||||||
Kai + 1st equipped
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+3 | ||||||||
| Kai + 2nd equipped
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+2 | ||||||||
| Kai + LOS Radar
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+2 | +4 | +2 | ||||||
| Kai + AIR Radar
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+1 | +5 | +2 | ||||||
Kagerou-class                
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+1 | +1 | excluding Akigumo Kai Ni
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Kai Ni    + 1st equipped
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+1 | +2 | Kai Ni excluding Dan Yang and Akigumo Kai Ni
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| Kai Ni + 2nd equipped
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+2 | +4 |
Improvement
Improvement  effects
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1★ | 2★ | 3★ | 4★ | 5★ | 6★ | 7★ | 8★ | 9★ | Max★ |
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1.00 | 1.41 | 1.73 | 2.00 | 2.23 | 2.44 | 2.64 | 2.82 | 3.00 | 3.16 |
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1.00 | 1.41 | 1.73 | 2.00 | 2.23 | 2.44 | 2.64 | 2.82 | 3.00 | 3.16 |
| 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 |