Kawanishi N1K

N1K/N1K-J
Kawanishi N1K2-J Shiden Kai
General information
TypeFighter
National originJapan
ManufacturerKawanishi Aircraft Company
Primary userImperial Japanese Navy Air Service
Number built1,532
History
Introduction date1943
First flightN1K1: 6 May 1942
N1K1-J: 27 December 1942
N1K2-J: 31 December 1943
Retired1945

The Kawanishi N1K was an Imperial Japanese Navy fighter aircraft which was developed in two variants. The N1K Kyōfū (強風, Strong Wind) (Allied reporting name Rex), a floatplane designed to support forward offensive operations where no airstrips were available. The N1K-J Shiden (紫電, Violet Lightning) (reporting name George), a land-based version of the N1K. Contemporary pilots and Allied reports praised the N1K-J’s performance, noting its high speed and maneuverability compared with other Japanese fighters of the period.

The improved N1K2-J Shiden Kai (紫電改) made its first flight on 1 January 1944. It carried four 20 mm cannons and used an automatic flap-extension mechanism, operated by a mercury-tilt sensor, to enhance lift during tight turns. These automatically deploying flaps increased wing lift during high-G maneuvers, allowing a tighter turn radius without additional pilot input. Unlike the Mitsubishi A6M Zero, the Shiden Kai could engage late-war allied fighters such as the F6F Hellcat, F4U Corsair, and P-51 Mustang on equal terms.