F-107A on NACA High-Speed Flight Station ramp at Edwards Air Force Base, California in 1958. The photo is of the right side of the airplane with a view of the large inlet located above the fuselage and aft of the cockpit. Two North American F-107A airplanes were flown at NACA/NASA High-Speed Flight Station starting November 1957 and continuing until September 1959. The F-107A was an aircraft possessing some interesting features that NACA wished to examine in detail. NACA acquired the first and third F-107As built.