8inch Triple Gun Mount Mk.9
[Edit]
No.356 8inch三連装砲 Mk.9
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 Medium Caliber Main GunEffects:
 +11  +1  -1  MediumScrap value:
 6  9 (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
米海軍の条約型重巡洋艦の主兵装として開発され、同主力重巡洋艦群に装備された三連装主砲兵装です。
20cm級の砲を一基三門に集約したベーシックでありながら、大火力を備えた主砲兵装です。
米海軍の条約型重巡Pensacola級やNorthampton級の主兵装として運用されました。
Developed by the United States Navy as the main gun of their treaty heavy cruisers, it was equipped on them in a triple mount.
It possesses great firepower even though it is just a basic mounting of three 20 cm guns in a single turret.
It was used as the main gun of the USN's Pensacola and Northampton classes treaty heavy cruisers.
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.
Notes
How To Obtain
Stock equipment of: Houston Kai
, Houston
, Northampton Kai
, Northampton
, Tuscaloosa Kai
, Tuscaloosa
Ranking reward for:
- Aug 2019: 1-5 (★+3, x2), 6-20 (★+3, x2), 21-100 (★+3, x2), 101-500
Event reward for:
- Fall 2019 Event E-4: Hard (★+4), Medium (★+2)
Updates History
- 2019-09-29: Implemented as ranking reward
- 2020-01-14: Became improvable and upgradeable to 8inch Triple Gun Mount Mk.9 mod.2
Fit Bonuses
| Ship | Extra Requirement |
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Note |
|---|---|---|---|---|---|---|---|---|---|
| Northampton-class
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+2 | ||||||||
Mogami-class   
|
+1 |
Improvement
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|---|---|---|---|---|---|---|
| Improvement | → | Conversion | ||||
| ★ Improvement Level |
0~5 | 6~9 |  8inch Triple Gun Mount Mk.9 mod.2 | |||
 Consumed
|
5/6 | 6/9 | 12/30 | |||
 Consumed
|
2/3 | 3/5 | 7/12 | |||
| Equipment Consumed |
|
x2
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| Items Consumed |
- | 
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| Resources |  20  120  160  10
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| Ship Helper | Conversion | |||||
|---|---|---|---|---|---|---|
 Houston/Kai |
8inch Triple Gun Mount Mk.9 mod.2 | |||||
| Mon | Tue | Wed | Thu | Fri | Sat | Sun |
Improvement  effects
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|---|---|---|---|---|---|---|---|---|---|---|
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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 |
|
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
|
1.30 | 1.84 | 2.25 | 2.60 | 2.91 | 3.18 | 3.44 | 3.68 | 3.90 | 4.11 |