who is the only human being to have flown two different types of winged vehicles in space (the X-15 and the space shuttle), and also the only astronaut to have manually flown the space shuttle through re-entry and landing. During his career, he flew on two space shuttle missions: the second orbital test flight of Columbia in November 1981 and the Discovery flight of August 1985 to deploy three communications satellites. Engle was selected as an astronaut in 1966 and retired in 1986.