QF-4 Phantom maintainers go through pre-flight inspections before the aircraft’s final unmanned mission at Holloman Air Force Base, N.M. on Aug. 17. The QF-4 mission will continue flying manned missions until the official end of the QF-4 program in December 2016. (U.S. Air Force photo by Airman 1st Class Randahl J. Jenson)