Kellett XR-8

The Kellett XR-8 (later redesignated XH-8) was a helicopter built in the United States during World War II. It was a two-seat machine intended to demonstrate the feasibility of a twin-rotor system and, while it accomplished this, it also demonstrated a number of problems that prevented further development of this particular design.

XR-8
Role Experimental helicopter
National origin United States
Manufacturer Kellett Autogiro Corporation
First flight 7 August 1944
Number built 2
Variants Kellett XR-10
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