Lockheed YF-104A 55-2961 was redesignated as an F-104A and delivered via the US Air Force to NACA High Speed Station at Edwards AFB on August 21, 1956. Later registered N818NA, the jet's last flight for NASA was Aug 26, 1975 when it was flown to Andrews AFB and transferred to the National Air and Space Museum in Washington, DC later that year.