11 May 64: Rolled out at Palmdale, CA, factory. 21 Sep 64: First flight; flew to Edwards AFB, CA; assigned to NASA's Dryden Flight Research Center. From there test pilots from NASA and the USAF flew the plane during its test program. 14 Oct 65: First Mach 3 flight. 17 Dec 68: Last supersonic flight. 4 Feb 69: Ferried to the Air Force Museum, Patterson Field, Wright-Patterson AFB, OH.