Robert Crippen, American captain, pilot, and astronaut

Robert Laurel Crippen is an American retired naval officer and aviator, test pilot, aerospace engineer, and astronaut. He traveled into space four times: as pilot of STS-1 in April 1981, the first Space Shuttle mission; and as commander of STS-7 in June 1983, STS-41-C in April 1984, and STS-41-G in October 1984. He was also a part of the Manned Orbiting Laboratory (MOL), Skylab Medical Experiment Altitude Test (SMEAT), ASTP support crew member, and the Approach and Landing Tests (ALT) for the Space Shuttle.

September 11 is the 254th day of the year in the Gregorian calendar; 111 days remain until the end of the year.