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Kawanishi N1K

N1K/N1K-J
Kawanishi N1K2-J 050317-F-1234P-015.jpg
Kawanishi N1K2-J Shiden Kai
Role Fighter
Manufacturer Kawanishi Aircraft Company
First flight N1K1: 6 May 1942
N1K1-J: 27 December 1942
N1K2-J: 31 December 1943
Introduction 1943
Retired 1945
Primary user Imperial Japanese Navy Air Service
Number built 1,532

The Kawanishi N1K Kyōfū (強風 "strong wind", Allied reporting name "Rex") was an Imperial Japanese Navy floatplane fighter. The Kawanishi N1K-J Shiden (紫電 "Violet Lightning") was an Imperial Japanese Navy Air Service land-based version of the N1K. Assigned the Allied codename "George", the N1K-J was considered by both its pilots and opponents to be one of the finest land-based fighters flown by the Japanese during World War II.

The Shiden Kai possessed heavy armament as well as surprisingly good manoeuvrability, due to a mercury switch that automatically extended the flaps during turns. These "combat" flaps created more lift, thereby allowing tighter turns. Unlike the A6M Zero, the Shiden Kai could compete against the best late-war fighters, such as the F6F Hellcat, the F4U Corsair and P-51 Mustang.

Despite such capability, it suffered from unreliable engines and was produced too late and in insufficient numbers to affect the outcome of the war.

Kawanishi's N1K was originally built as a single pontoon floatplane fighter to support forward offensive operations where no airstrips were available, but by 1943 when the aircraft entered service, Japan was firmly on the defensive, and there was no more need for a fighter to fulfil this role.

The requirement to carry a bulky, heavy float essentially crippled the N1K against contemporary American fighters. Kawanishi engineers, however, had proposed in late 1941 that the N1K would be the basis of a formidable land-based fighter too, and a land-based version was produced as a private venture by the company. This version flew on 27 December 1942, powered by a Nakajima NK9A Homare 11 radial engine, replacing the less powerful Mitsubishi MK4C Kasei 13 of the N1K. The aircraft retained the mid-mounted wing of the floatplane, and combined with the large propeller necessitated a long, stalky main landing gear. A unique feature was the aircraft's combat flaps that adjusted their angle in response to acceleration; thus freeing up the pilot's concentration and reducing the chance of stalling in combat. The N1K did have a vice: If handled roughly, it could easily enter an unrecoverable spin. Its flight characteristics were treacherous and required an experienced pilot.


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