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12cm 30-tube Rocket Launcher Kai 2

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No.274 12cm30連装噴進砲改二
GreenGunMG.png Anti-Aircraft Gun
Effects: AA+8 Armor+1 Accuracy+1 Evasion+3
Scrap value: Ammo 5 Steel 2 Bauxite 3 (Unbuildable)

Equipment Card 12cm 30-tube Rocket Launcher Kai 2.png

Equipment Character 12cm 30-tube Rocket Launcher Kai 2.png

Equipment Item 12cm 30-tube Rocket Launcher Kai 2.png

Equipment Full 12cm 30-tube Rocket Launcher Kai 2.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



An improved variant of the ship-based anti-air rocket launcher, the "12cm 30-tube Rocket Launcher", further refined by lessons learned in combat.
With improvements to backblast countermeasures, reloading, and even fire control, the ability of the launcher's continuous rocket barrage of incendiary anti-air shrapnel to shield friendly ships from thinly armored enemy aircraft has further improved.
"Ise Kai" and "Hyuuga Kai" high anti-air effectiveness stands out further with this.


Anti-Aircraft Gun AA Guns are equippable in RE. They are mainly used to provide "Anti-Air", notably via their AA Anti-Air stat. They:

  • Are notably required in most AACI.
  • Trigger a tracer-fire effect during air combat.
  • Bring an accuracy bonus against PT Imp.
  • Is required for AACI n° 25, 27, 28.
  • Enables Anti-Air Rocket Barrage on BBV, CAV, CV(L/B), and AV.


How To Obtain

Upgradeable from 12cm 30-tube Rocket Launcher12cm 30-tube Rocket Launcher

From quests: B114

Ranking reward for:

  • Dec 2017: 1-5, 6-20, 21-100, 101-500

Updates History

  • 2018-01-27: Implemented as ranking reward
  • 2018-02-05: Became improvable, ability to perform Rocket Barrage added


GreenGunMG.png 12cm 30-tube Rocket Launcher Kai 2

Improvement Not
★ Improvement
0~5 6~9
Development material Consumed 5/7 7/15
Improvement material Consumed 4/5 5/7
Equipment Card 25mm Triple Autocannon Mount.pngx2 Equipment Card 12cm 30-tube Rocket Launcher.pngx2
Resources Fuel90 Ammunition300 Steel90 Bauxite190
Ship Helper Conversion
Ship Banner Ise Kai.png
Ise Kai
Mon Tue Wed Thu Fri Sat Sun
Ship Banner Ise Kai Ni.png
Ise Kai Ni
Mon Tue Wed Thu Fri Sat Sun
Ship Banner Hyuuga Kai.png
Hyuuga Kai
Mon Tue Wed Thu Fri Sat Sun
Ship Banner Hyuuga Kai Ni.png
Hyuuga Kai Ni
Mon Tue Wed Thu Fri Sat Sun
Improvement Improved effects
Anti-Aircraft Gun 1★ 2★ 3★ 4★ 5★ 6★ 7★ 8★ 9★ Max★
Firepower 1.00 1.41 1.73 2.00 2.23 2.44 2.64 2.82 3.00 3.16
Torpedo Attack 1.2 1.69 2.07 2.40 2.68 2.93 3.17 3.39 3.60 3.79
[math]\displaystyle{ \text{AdjAA}_\text{ship} }[/math] 6.00 8.49 10.39 12.00 13.42 14.70 15.87 16.97 18.00 18.97
Accuracy Torpedo 2.00 2.82 3.46 4.00 4.47 4.89 5.29 5.65 6.00 6.32

See Also