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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
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
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

Ship Extra Requirement Firepower Torpedo Attack Anti-Air Anti-Submarine Warfare Line of Sight Armor Evasion Note
US CAsNorthampton

US CLsAtlanta
+1 +1 +1 Non-stackable
(★3-4) +1 +1 +1 +1
(★5-7) +1 +1 +1 +2
(★8-9) +2 +1 +1 +2
Other US ShipsIowa
South Dakota
+1 +1 Non-stackable
(★5-MAX) +1 +1 +1
Ship Extra Requirement Firepower Torpedo Attack Anti-Air Anti-Submarine Warfare Line of Sight Armor Evasion Note
Agano-class Kai NiNoshiro Kai Ni
Yahagi Kai Ni
Yahagi Kai Ni B
+2 +3 +1 Non-stackable between any Seaplane Recon
Mogami Kai Ni/TokuMogami Kai Ni
Mogami Kai Ni Toku


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

Curtiss SO3C Seamew