51cm Twin Gun Mount

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No.281 51cm連装砲
RedGunHeavy.png Large Caliber Main Gun (II) (51 cm)
Effects: Firepower+32 AA+5 Armor+2 Accuracy+1 Evasion-1 RangeVery Long
Scrap value: Ammo 30 Steel 28 (Unbuildable)

Equipment Card 51cm Twin Gun Mount.png

Equipment Character 51cm Twin Gun Mount.png

Equipment Item 51cm Twin Gun Mount.png

Equipment Full 51cm Twin Gun Mount.png

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

大和型戦艦の発展強化型への搭載が検討されていた大口径大型用戦艦主砲、その完成版です。
最大最強の艦艇搭載用砲熕兵装となる本砲は、改装強化された大和型等で運用可能です。
実戦配備されることのなかった本砲で、海原で一斉射を!

This is the finished version of the large-caliber main gun that was intended to be installed on the upgraded Yamato-class that was in development.
It is the largest and most powerful naval artillery in existence. It can be used by the remodeled Yamato-class and other ships.
Though it has never been used in combat, go forth and fire a volley upon the sea!

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).

Notes

How To Obtain

Upgradeable from: Prototype 51cm Twin Gun Mount 

From limited-time quest: 2204 B3 (choice)

Ranking reward for:

  • Jan 2022: 1-5 (★+2)
  • Feb 2022: 1-5 (★+3)
  • Nov 2023: 1-5 (★+4), 6-20 (★+4), 21-100 (★+2), 101-500

Event reward for:

Updates History

  • 2018-02-17: Implemented
  • 2018-03-23: Became improvable
  • 2022-06-08: Visible bonuses added

Fit Bonuses

51cm Twin Gun Mount Equipment Bonuses
Ship Extra Requirement                 Note
Yamato Kai Ni /Juu 
 

Musashi Kai Ni 
- +1 +1
+ 15m Duplex Rangefinder + Type 21 Radar Kai 2  OR 15m Duplex Rangefinder Kai + Type 21 Radar Kai 2 + Skilled Fire Direction Center  +1 +2 One-time[1]
+ 15m Duplex Rangefinder Kai + Type 21 Radar Kai 2 + Skilled Fire Direction Center  +1 +1 One-time[1]
Other Yamato-class 
 
+ 15m Duplex Rangefinder + Type 21 Radar Kai 2  OR 15m Duplex Rangefinder Kai + Type 21 Radar Kai 2 + Skilled Fire Direction Center  +1 +2 One-time[1]

Improvement

  51cm Twin Gun Mount

Improvement Not
Upgradable
★ Improvement
Level
0~5 6~9
  Consumed 20/25 25/50
  Consumed 7/8 10/13
Equipment
Consumed
 x4  x4
Items
Consumed
-
Resources  100  700  950  200
Ship Helper Conversion
 
Musashi Kai Ni
-
Mon Tue Wed Thu Fri Sat Sun
Improvement   effects
  1★ 2★ 3★ 4★ 5★ 6★ 7★ 8★ 9★ Max★
  1.50 2.12 2.59 3.00 3.35 3.67 3.96 4.24 4.50 4.74
  1.00 1.41 1.73 2.00 2.23 2.44 2.64 2.82 3.00 3.16
  Day 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

See Also