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Spirit stealth bomber of the USAF. Stealth aircraft are designed to avoid detection using a variety of advanced technologies that reduce reflection/emission of radar, visible light, radio-frequency (RF) spectrum, and audio, collectively k
The North American O-47 is an observation fixed-wing aircraft monoplane used by the United States Army Air Corps. It had a low-wing configuration, retractable landing gear and a three-blade propeller
The Sikorsky S-72 Rotor Systems Research Aircraft (RSRA) had the unique ability to fly as a pure helicopter, a compound helicopter, or as a fixed-wing aircraft. The first flight in compound configuration was completed on Monday, April 10, 1978 from Wallops Flight Test Center to Moffett Field.