Frederick D. Gregory
…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). STS-51B/Spacelab-3 launched from Kennedy Space Center, Florida, on April 29, 1985…