Colonel Frederick D. Gregory, is a former United States Air Force pilot, military engineer, test pilot, and NASA astronaut. Col. Gregory was selected as an astronaut in January 1978. His technical assignments included: Astronaut Office representative at the Kennedy Space Center during initial Orbiter checkout and launch support for STS-1 and STS-2; Flight Data File Manager; lead spacecraft communicator (CAPCOM); Chief, Operational Safety, NASA Headquarters, Washington, D.C.; Chief, Astronaut Training; and a member of the Orbiter Configuration Control Board and the Space Shuttle Program Control Board. A veteran of three Shuttle missions he has logged about 456 hours in space. He served as pilot on STS-51B (April 29 to May 6, 1985), and was the spacecraft commander on STS-33 (November 22–27, 1989), and STS-44 (November 24 to December 1, 1991). He’s a veteran of three Shuttle missions and has logged over 455 hours in space.