Lockheed XH-51

The Lockheed XH-51 is an American single-engine experimental helicopter designed by Lockheed Aircraft, utilizing a rigid rotor and retractable skid landing gear. The XH-51 was selected as the test vehicle for a joint research program conducted by the United States Army and United States Navy to explore rigid rotor technology.

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Lockheed 186; Lockheed Model 186; Model 186; XH51
Lockheed H-51, experimental aircraft, Lockheed Corporation, 

Lockheed H-51, 

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Location: KML, Cluster Map, Maps,

Frameless

Lockheed XH-51 lowers sonar c1966

Lockheed XH-51A Compound in flight c1965

Three Lockheed XH-51 helicopters in flight c1965

Lockheed XH-51A front view c1965

XH-51A landing on USS Ozbourn (DD-846) c1963

Lockheed XH-51 1263

Lockheed XH-51 Experimental Rigid Rotors, no hinges, in Ames 40x80 foot wind tunnel. John McCloud (left sitting) Jack Rabbot (Right).

Lockheed XH-51A first flight 1962

Lockheed XH-51A landing aboard USS Ozbourn (DD-846), circa in 1963 (4561400925)

XH-51A-1

Type	Subtype	Date	Description	Notes	Source
commons	image		Lockheed XH-51 lowers sonar c1966		Commons
commons	image		Lockheed XH-51A Compound in flight c1965		Commons
commons	image		Three Lockheed XH-51 helicopters in flight c1965		Commons
commons	image		Lockheed XH-51A front view c1965		Commons
commons	image		XH-51A landing on USS Ozbourn (DD-846) c1963		Commons
commons	image		Lockheed XH-51 1263		Commons
commons	image		Lockheed XH-51 Experimental Rigid Rotors, no hinges, in Ames 40x80 foot wind tunnel. John McCloud (left sitting) Jack Rabbot (Right).		Commons
commons	image		Lockheed XH-51A first flight 1962		Commons
commons	image		Lockheed XH-51A landing aboard USS Ozbourn (DD-846), circa in 1963 (4561400925)		Commons
commons	image		XH-51A-1		Commons