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SO3C Seamew Kai

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Curtiss SO3C-4 Seamew
No.415 SO3C Seamew改
Seaplane.png Reconnaissance Seaplane
Effects: AA+1 ASW+2 Accuracy+3 LoS+7
Combat Radius: 4 (Deployment Cost: Bauxite 5)
Scrap value: Fuel 2 Ammo 1 Bauxite 3 (Unbuildable)

Equipment Card SO3C Seamew Kai.png

Equipment Character SO3C Seamew Kai.png

Equipment Item SO3C Seamew Kai.png

Equipment Full SO3C Seamew Kai.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
LBAS Plane



The SO3C Seamew was developed as the successor to the wildly successful and widely used SOC ship-based seaplane.
Its development was plagued with problems and it didn't achieve the desired performance, with this what-if upgraded version being improved and ready for roll-out to improve the performance of USN cruisers.


Seaplane Seaplanes are the main aircraft type used by non-carrier ships (mainly battleships, cruisers, and auxiliaries).

Reconnaissance AircraftReconnaissance AircraftLarge Reconnaissance AircraftSpLand-based Reconnaissance AircraftLBReconnaissance SeaplaneReconNight Reconnaissance Seaplane are planes that:


How To Obtain

Upgradeable from: SOC SeagullSOC Seagull

Event reward for:

Updates History

  • 2021-05-08: Implemented

Fit Bonuses

SO3C Seamew Kai Equipment Bonuses
Ship Extra Requirement Firepower Torpedo Attack Anti-Air Anti-Submarine Warfare Line of Sight Armor Accuracy Evasion Note

New Orleans-classTuscaloosa

St. Louis-classHelena
(1st equipped) (★0-2) +1 +1 +1 One-time
(1st equipped) (★3-4) +1 +1 +1 +1 One-time
(1st equipped) (★5-7) +1 +1 +1 +2 One-time
(1st equipped) (★8-MAX) +2 +1 +1 +2 One-time
Other United States Navy Vessels (1st equipped) (★0-4) +1 +1 One-time
(1st equipped) (★5-MAX) +1 +1 +1 One-time
Seaplane Recon Type Equipment Bonuses
Ship Extra Requirement Firepower Torpedo Attack Anti-Air Anti-Submarine Warfare Line of Sight Armor Accuracy Evasion Note
Noshiro Kai NiNoshiro Kai Ni
Yahagi Kai Ni /BYahagi Kai Ni
Yahagi Kai Ni B
(1st equipped) +2 +3 +1 One-time[1]
Mogami Kai Ni /TokuMogami Kai Ni
Mogami Kai Ni Toku

Mikuma Kai Ni /TokuMikuma Kai Ni
Mikuma Kai Ni Toku
(1st equipped) +2 One-time[1]
  1. 1.0 1.1 Shared with all SeaplaneSeaplane Recon


Improvement Improved effects
Reconnaissance SeaplaneRecon 1★ 2★ 3★ 4★ 5★ 6★ 7★ 8★ 9★ Max★
Line of Sight 1.2 1.69 2.07 2.40 2.68 2.93 3.17 3.39 3.60 3.79

See Also