|Role||VTOL research convertiplane|
|Manufacturer||Doak Aircraft Company|
|First flight||25 February 1958|
|Status||preserved at Fort Eustis VA|
|Primary user||United States Army|
The aircraft was originally powered by an 840 shp (630 kW) Lycoming YT53 turboprop engine. It was replaced with a 1,000 shp (750 kW) Lycoming T53-L-1 turbine. The turbine engine is mounted in the fuselage driving two wing-tip mounted tilting ducted fan propellers.
Only one aircraft was produced. Given serial number 56-6942, it is on display at the U.S. Army Transportation Museum located at Fort Eustis, Virginia.
Data from The Illustrated Encyclopedia of Aircraft
- Crew: 2
- Length: 32 ft 0 in (9.75 m)
- Wingspan: 25 ft 6 in (7.77 m)
- Height: 10 ft 0 in (3.05 m)
- Wing area: 96 ft2 (8.92 m2)
- Empty weight: 2,300 lb (1043 kg)
- Gross weight: 3,200 lb (1451 kg)
- Powerplant: 1 × Avco Lycoming YT-53 turboshaft, 840 hp (626 kW)
- Maximum speed: 230 mph (370 km/h)
- Range: 230 miles (370 km)
- Service ceiling: 6000 ft (1830 m)
- Related lists
- Swanborough and Bowers 1963, p. 583.
- Harding, Stephen. U.S. Army Aircraft Since 1947. Shrewsbury, UK: Airlife Publishing, Ltd., 1990. ISBN 1-85310-102-8.
- The Illustrated Encyclopedia of Aircraft 1985, p. 1454.
- The Illustrated Encyclopedia of Aircraft (Part Work 1982–1985). London: Orbis Publishing, 1985.
- Swanborough, F.G. and Peter M. Bowers. United States Military Aircraft since 1909. London: Putnam, 1963.
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