Engineering:Rotorcraft XR-11
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XR-11/XH-11 | |
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Role | Twin-rotor helicopter |
National origin | United States |
Manufacturer | Rotorcraft Corporation |
Designer | Gilbert Magill |
First flight | 1947 |
Status | Cancelled |
Primary user | U.S. Army Air Force |
Number built | 1 |
The Rotorcraft XR-11, known by the company as the X-2 Dragonfly, was an American two-seat lightweight helicopter built in the 1940s for evaluation by the United States Air Force by the Rotorcraft Corporation of Glendale, California.[1][2]
Design and development
The XR-11 was a powered by a 100 hp (75 kW) Continental A100 piston engine driving two three-bladed contra-rotating rotors.[1] Only one was built and first flown in 1947, it was re-designated the XH-11 in 1948, the project was later cancelled.[1][2]
Variants
- XR-11
- United States Air Force designation later changed to XH-11, one built.[1]
Operators
United States
Specifications
General characteristics
- Crew: 2
- Length: 15 ft 0 in (4.57 m)
- Height: 7 ft 6 in (2.29 m)
- Empty weight: 899 lb (408 kg)
- Max takeoff weight: 1,349 lb (612 kg)
- Powerplant: 1 × Continental A100 , 100 hp (75 kW)
- Main rotor diameter: 2× 18 ft 0 in (5.49 m)
See also
Related lists
- List of military aircraft of the United States
- List of rotorcraft
- Tandem rotors
References
Notes
- ↑ 1.0 1.1 1.2 1.3 Andrade 1979, p. 162
- ↑ 2.0 2.1 "American airplanes - Ro - Ry". www.aerofiles.com. 25 February 2009. http://aerofiles.com/_ro.html.
Bibliography
- Andrade, John (1979). U.S.Military Aircraft Designations and Serials since 1909. Midland Counties Publications. ISBN 0-904597-22-9.
![]() | Original source: https://en.wikipedia.org/wiki/Rotorcraft XR-11.
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