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51cm Twin Gun Mount

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No.281 51cm連装砲
RedGunHeavy.png Large Caliber Main Gun (II) (??)
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 Class
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

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!

Notes

How To Obtain

Upgradeable from: Prototype 51cm Twin Gun MountPrototype 51cm Twin Gun Mount

From limited-time quest: 2204 B3 (choice)

Ranking reward for:

  • Jan 2022: 1-5 (★+2)
  • Feb 2022: 1-5 (★+3)

Event reward for:

Updates History

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

Fit Bonuses

Ship Extra Requirement Firepower Torpedo Attack Anti-Air Anti-Submarine Warfare Line of Sight Armor Evasion Note
Yamato-class Kai Ni (Juu)Yamato Kai Ni
Yamato Kai Ni Juu
Musashi Kai Ni
+1 Accuracy+1
+ 15m Duplex Rangefinder Kai + Type 21 Radar Kai Ni + Skilled Fire Direction Center15m Duplex Rangefinder Kai + Type 21 Radar Kai Ni + Skilled Fire Direction Center +1 Accuracy+1, One-time between Prototype 51cm Twin Gun MountPrototype 51cm Twin Gun Mount / 51cm Twin Gun Mount51cm Twin Gun Mount
+ 15m Duplex Rangefinder + Type 21 Radar Kai Ni15m Duplex Rangefinder + Type 21 Radar Kai Ni OR 15m Duplex Rangefinder Kai + Type 21 Radar Kai Ni + Skilled Fire Direction Center15m Duplex Rangefinder Kai + Type 21 Radar Kai Ni + Skilled Fire Direction Center +1 Accuracy+2, One-time between Prototype 51cm Twin Gun MountPrototype 51cm Twin Gun Mount / 51cm Twin Gun Mount51cm Twin Gun Mount
Other Yamato-classYamato
Musashi
+ 15m Duplex Rangefinder + Type 21 Radar Kai Ni15m Duplex Rangefinder + Type 21 Radar Kai Ni OR 15m Duplex Rangefinder Kai + Type 21 Radar Kai Ni + Skilled Fire Direction Center15m Duplex Rangefinder Kai + Type 21 Radar Kai Ni + Skilled Fire Direction Center +1 Accuracy+2, One-time between Prototype 51cm Twin Gun MountPrototype 51cm Twin Gun Mount / 51cm Twin Gun Mount51cm Twin Gun Mount

Improvement

Type Name Resource Day 2nd Ship Note
Fuel Ammunition Steel Bauxite Item Icon Development Material.png Item Icon Improvement Material.png # of equipment needed for that upgrade. An asterisk following the number indicates a different equipment is required. Sun Mon Tue Wed Thu Fri Sat
Large Caliber Main Gun 51cm Twin Gun Mount 0 100 700 950 200 20/25 7/8 4xRedGunHeavy.png X X X X Musashi Kai Ni
6 25/50 10/13 4xRedGunHeavy.png
10 - - -
Improvement Improved effects
Large Caliber Main Gun 1★ 2★ 3★ 4★ 5★ 6★ 7★ 8★ 9★ Max★
Firepower 1.50 2.12 2.59 3.00 2.35 3.67 3.96 4.24 4.50 4.74
Night Battle Power 1.00 1.41 1.73 2.00 2.23 2.44 2.64 2.82 3.00 3.16
Accuracy 1.00 1.41 1.73 2.00 2.23 2.44 2.64 2.82 3.00 3.16

See Also