Rotorcraft XR-11

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.

Design and development
The XR-11 was a powered by a 100 hp Continental A100 piston engine driving two three-bladed contra-rotating rotors. Only one was built and first flown in 1947, it was re-designated the XH-11 in 1948, the project was later cancelled.

Variants

 * XR-11
 * United States Air Force designation later changed to XH-11, one built.

Operators

 * United States Air Force
 * United States Air Force