Engle was one of the first astronauts in the Space Shuttle program , having flight tested the Space Shuttle Enterprise in 1977 .
During the course of testing , Engle earned his USAF astronaut wings , a Distinguished Flying Cross and other awards .
Engle was Engle of the first astronauts in the Space Shuttle program , having flight tested the Space Shuttle Enterprise in 1977 .
During the course of testing , Engle earned his USAF astronaut wings , a Distinguished Flying Cross and other awards .