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Lockheed XH-51
1962 experimental helicopter series by Lockheed / From Wikipedia, the free encyclopedia
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The Lockheed XH-51 (Model 186) was 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.
Quick Facts XH-51, Role ...
XH-51 | |
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XH-51A following its conversion into a compound rotorcraft testbed | |
Role | Experimental helicopter |
Manufacturer | Lockheed Corporation |
First flight | 2 November 1962 |
Status | Retired |
Primary users | United States Army NASA |
Produced | 1962–1964 |
Number built | 3 |
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