Nakajima Ki-43 Hayabusa "Oscar"
Nakajima · Japan · first flew 1939 · fighter
The Nakajima Ki-43 Hayabusa ('Peregrine Falcon'), known to the Allies as 'Oscar', was the most widely built Imperial Japanese Army fighter of World War II. Extremely agile but lightly built, it exemplified Japanese design philosophy prioritising manoeuvrability over protection.
Recognition (WEFT)
| W — Wings | Low-mounted, tapered |
|---|---|
| E — Engines | 1 × piston, nose-mounted |
| F — Fuselage | Slim fuselage with small, rounded canopy |
| T — Tail | Conventional |
WEFT is AircraftIQ's four-point recognition method — how it works.
Spot it by:
- Distinctive butterfly combat flaps (manoeuvring flaps)
- Slim fuselage with small, rounded canopy
- Very rounded elliptical wingtips
A slender low-wing monoplane with very rounded wingtips, a slim fuselage, and a small framed canopy; lighter and more delicate in appearance than the Navy's Zero, with a shorter and narrower chord wing.
Specifications
- The Nakajima Ki-43 Hayabusa has a length of 8.92 m (29 ft).
- It has a wingspan of 10.84 m (36 ft).
- Its maximum speed is 530 km/h (329 mph).
- Typical crew: 1.
Figures are for the representative variant described above; marks differ. See how AircraftIQ sources figures.
History
First flying in January 1939, the Ki-43 entered service in 1941 and saw combat across the Pacific, South-East Asia, and China. Its innovative 'butterfly' manoeuvring flaps gave it an exceptional turning radius that surprised Allied pilots; however, the lack of armour and self-sealing tanks meant pilots rarely survived serious hits.
Variants
The Ki-43-I, II, and III series progressively improved engine power, armament, and pilot protection; the Ki-43-IIIa and IIIb with the Mitsubishi Ha-112 engine were the definitive versions.
Where you'll see it
The primary fighter of the Japanese Army Air Force throughout the war; Thailand received some examples, and a small number were evaluated by the USAAF after capture.
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