| Ku-4 | |
|---|---|
| |
| Role | Research aircraft
Type of aircraft
|
| National origin | Japan |
| Manufacturer | Kayaba Industry |
| Designer | Hidemasa Kimura |
| Status | Cancelled project |
The Kayaba Ku-4 was a research aircraft built in Japan in 1940 to investigate the possibilities of tailless aircraft designs. It followed designer Hidemasa Kimura's successful Ku-2 and Ku-3 designs for the Imperial Japanese Army. While these previous aircraft had been gliders, however, the Ku-4 was to be powered by a pusher engine. It had a low, swept wing, and like the Ku-2, fins at the wingtips.
Work on the prototype was well advanced by April 1941, but the following month, Kimura's relationship with the Army soured following the crash of the Ku-2. The Ku-4 was canceled, and Kimura eventually received only ¥17,000 of the ¥200,000 that had been promised for the development of his tailless designs.
General characteristics
Performance
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