5inch Single Gun Mount Mk.30
[Edit]
No.284 5inch単装砲 Mk.30
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 Small Caliber Main Gun (High-angle)Effects:
 +2  +6  +1  +1  +2  ShortScrap value:
 1  2  2 (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
米国で開発・実戦配備された優れた両用砲。同駆逐艦クラスの搭載主砲として、広く運用された単装砲兵装です。
対艦戦闘及び対空戦闘両面で優れた実用性を発揮した本砲は、あのフレッチャー級駆逐艦や、レイテ沖で栗田艦隊主力から
タフィー3護衛空母群を護って奮戦した護衛駆逐艦などにも、主砲として装備されました。
An excellent dual-purpose gun developed and deployed by the US.
It was extensively used as the main armament of US destroyers in single gun mounts.
It displayed both excellent anti-ship and anti-air capabilities. It was the main gun of the Fletcher-class destroyers, as well as the destroyer escort that fought hard protecting the Taffy 3 escort carriers from the main force of the Kurita Fleet at Leyte.
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.
High-Angle Guns (sometimes "dual-purpose guns"), are anti-air focused guns, that can serve their main surface role, in addition to having extra 
AA stats.
Notes
How To Obtain
Stock equipment of: Fletcher
, Johnston
, Samuel B. Roberts Kai
, Samuel B. Roberts
From quest: B185 (x4, choice), B186 (x2, choice)
Ranking reward for:
- Jan 2018: 1-5 (x2), 6-20, 21-100, 101-500
- Feb 2018: 1-5 (★+4), 6-20 (★+4), 21-100 (★+4), 101-500 (★+4)
Uses
Used to improve: 5inch Single Gun Mount Mk.30 Kai
Used by quest: F112
Updates History
- 2018-02-28: Implemented as ranking reward
- 2018-04-23: Became improvable
- 2022-07-13: Became upgradable to 5inch Single Gun Mount Mk.30 Kai
Improvement
| Type | Name | ★ | Resource | Day | 2nd Ship | Note | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Sun | Mon | Tue | Wed | Thu | Fri | Sat | |||||
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5inch Single Gun Mount Mk.30 | 0 | 30 | 80 | 180 | 160 | 10/12 | 6/7 | 2x
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S J F |
S F |
S F |
S |
S J |
S J |
S J F |
Samuel B. Roberts Johnston Fletcher
|
Upgrades to 5inch Single Gun Mount Mk.30 Kai
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| 6 | 12/18 | 8/10 | 2x
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| 10 | 12/18 | 8/10 | 1x
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Improvement  effects
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|---|---|---|---|---|---|---|---|---|---|---|
| Main
|
1★ | 2★ | 3★ | 4★ | 5★ | 6★ | 7★ | 8★ | 9★ | Max★ |
|
|
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 |
| [math]\displaystyle{ \text{AdjAA}_\text{ship} }[/math] | 2.00 | 2.82 | 3.46 | 4.00 | 4.47 | 4.89 | 5.29 | 5.65 | 6.00 | 6.32 |
| [math]\displaystyle{ \text{AdjAA}_\text{fleet} }[/math] | 2.00 | 2.82 | 3.46 | 4.00 | 4.47 | 4.89 | 5.29 | 5.65 | 6.00 | 6.32 |
| Day
|
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 |