Prior to joining Thiokol, he served as a Vice President with Lockheed Martin Information Systems in Orlando, Florida from April, 1995 to November, 1996.

Crippen served as the director of NASA's John F. Kennedy Space Center from January l992 to January 1995. In this position he was responsible for all activities occurring on the U. S.'s gateway to the universe. During his tenure, the center processed, safely launched, and recovered 22 Space Shuttle Missions. He provided leadership for over thirteen thousand civil service and contractor personnel. This included oversight of multiple contracts supporting center operations for both manned and unmanned spaceflight. He also implemented cost savings of greater than 25% by establishing and developing new quality management techniques while ensuring the highest safety standards in an extremely hazardous environment.

From January 1990 to January 1992 he served as Director, Space Shuttle, at NASA Headquarters in Washington, D.C. In this headquarters post he was responsible for the overall Shuttle program requirements, performance, and total program control, including budget, schedule and program content. He was stationed at KSC from July l987 to December 1989, serving as Deputy Director Shuttle Operations for NASA Headquarters. He was responsible for final Shuttle preparation, mission execution and return of the orbiter to KSC following landings at Edwards Air Force Base, California.

Born September 11, l937, in Beaumont, Texas, Crippen received a bachelor of science degree in aerospace engineering from the University of Texas in l960. He was commissioned through the U.S. Navy's Aviation Officer Program. As a Navy pilot from June l962 to November l964, he completed a tour of duty aboard the aircraft carrier USS Independence flying A4s in VA-72. He later attended the USAF Aerospace Research Pilot School at Edwards Air Force Base, California. Upon graduation he remained at Edwards as an instructor until his selection for the USAF Manned Orbiting Laboratory (MOL) Program in October 1966.

Crippen became a NASA astronaut in September l969. He was a member of the astronaut support crew for the Skylab 2, 3, and 4 missions and for the Apollo-Soyuz Test Project mission. He was the pilot of the first orbital test flight of the Shuttle program (STS-1, April 12-14, l981) and was the commander of three additional shuttle flights: STS-7, June 18-24, 1983; STS-41C, April 6-13, l984; and STS-41G, October 6-13, l984.

His accomplishments have earned him many notable awards: the NASA Exceptional Service Medal in 1972; five awards in l981, including the Department of Defense Distinguished Service Award, The American Astronautical Society of Flight Achievement Award, The National Geographic Society's Gardiner Greene Hubbard Medal, and induction into the Aviation Hall of Fame. In l982 he won the Federal Aviation Administration's Award for Distinguished Service, the Goddard Memorial Trophy and the Harmon Trophy. In l984 he received the U.S. Navy Distinguished Flying Cross and the Defense Meritorious Service Medal. He also received NASA's Outstanding Leadership Medal in l988 and three Distinguished Service Medals in 1985, 1988, and 1993. He is also a Fellow in the American Institute of Aeronauatics and Astronautics, American Astronautical Society and Society of Experimental Test Pilots.

Crippen is married to the former Pandora Lee Puckett of Miami, Florida. He has three daughters: Ellen, Susan, and Linda.