John Elmer Blaha (born August 26, 1942, in San Antonio, Texas) is a retired United States Air Force colonel and a former NASA astronaut. He is a veteran of five space missions aboard the Space Shuttle and Mir. Blaha is married to the former Brenda I. Walters of St. Louis, Missouri. They have three grown children and five grandchildren. Blaha graduated from Granby High School in Norfolk, Virginia, in 1960; received a bachelor of science in engineering science from the United States Air Force Academy in 1965; and received a master of science in astronautical engineering from Purdue University in 1966. Blaha received his pilot wings at Williams Air Force Base, Arizona, in 1967. He was subsequently assigned as an operational pilot flying F-4, F-102, F-106, and A-37 aircraft (completing 361 combat missions in Vietnam). He attended the USAF Aerospace Research Pilot School at Edwards Air Force Base, California, in 1971, and piloted the NF-104 research aircraft to 104,400 feet. Following graduation, he served as an F-104 instructor pilot at the test pilot school, teaching low lift-to-drag approach, zoom, performance, stability/control, and spin flight test techniques. In 1973, he was assigned as a test pilot working with the Royal Air Force at the Aeroplane and Armament Experimental Establishment, Boscombe Down, United Kingdom. During a three-year tour, he flew stability/control, performance, spin, and weapons delivery flight tests in the SEPECAT Jaguar, Blackburn Buccaneer, BAE Hawk, and BAC Jet Provost aircraft. In 1976, he attended the U.S. Air Force Air Command and Staff College. After graduation, he was assigned to work for the Assistant Chief of Staff, Studies and Analyses, at Headquarters USAF in the Pentagon. During this tour, he presented F-15 Eagle and F-16 Fighting Falcon study results to Department of Defense, State Department, and Congressional staffs. Selected as an astronaut in May 1980, Blaha has logged 161 days in space on five space missions. He served as pilot on STS-33 and STS-29, was spacecraft Commander on STS-58 and STS-43, served on Mir 22 as Board Engineer 2, and was a Mission Specialist on STS-79 and STS-81. In addition to flying five space missions, Blaha has served as the Chairman, NASA Space Flight Safety Panel; Weather Manager, Mission Management Team; lead spacecraft communicator; member, NASA Space Shuttle Improvement Panel. Blaha also led the design, development, and integration of the Orbiter Head Up Display system. Additionally, he led the development of contingency abort procedures which significantly improve crew survivability in the event of multiple main engine failures during ascent. He has logged more than 7,000 hours of flying time in 34 different aircraft, and has written numerous technical articles on spacecraft performance and control. John Blaha retired from NASA in September 1997 to return to his hometown of San Antonio, Texas, where he joined the executive management team of the United Services Automobile Association.