Rotorcraft XR-11

XR-11/XH-11
XR-11/XH-11
General information
Type	Twin-rotor helicopter
National origin	United States
Manufacturer	Rotorcraft Corporation
Designer	Gilbert Magill
Status	Cancelled
Primary user	U.S. Army Air Force
Number built	1
History
First flight	1947

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

United States Air Force

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)

References

Notes

1 2 3 4 Andrade 1979, p. 162
1 2 "American airplanes - Ro - Ry". www.aerofiles.com. 25 February 2009. Retrieved 2010-02-18.

Bibliography

Andrade, John (1979). U.S.Military Aircraft Designations and Serials since 1909. Midland Counties Publications. ISBN 0-904597-22-9.

[Andrade-1] 1 2 3 4 Andrade 1979, p. 162

[aerofile-2] 1 2 "American airplanes - Ro - Ry". www.aerofiles.com. 25 February 2009. Retrieved 2010-02-18.

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