Overview
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.
Specifications
Figures are compiled from public sources and may be approximate; they can vary by variant and configuration.
Photos
Photo 1: US Army / Wikimedia Commons · Public domain
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