Kellett KD-1
The Kellett KD-1 was a 1930s American autogyro built by the Kellett Autogiro Company. It had the distinction of being the first practical rotary-wing aircraft used by the United States Army and inaugurated the first scheduled air-mail service using a rotary-wing aircraft.
| Kellett KD-1 | |
|---|---|
| Kellett XR-3 modification of YG-1B (KD-1) of U.S. Army preserved at Yanks Air Museum, Chino airfield California, in January 2008 | |
| Role | Autogyro |
| National origin | United States |
| Manufacturer | Kellett Autogiro Company |
| First flight | 1934 |
| Primary users | United States Army Air Forces Eastern Airlines |
| Developed into | Kayaba Ka-1/Ka-2 |
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