Robert Michael "Bob" White (July 6, 1924 – March 17, 2010) (Maj Gen, USAF) was an American electrical engineer, test pilot, fighter pilot, and astronaut. He was one of twelve pilots who flew the North American X-15, an experimental spaceplane jointly operated by the Air Force and NASA. As an engineer, he supervised the design and development of several modern military aircraft. On July 17, 1962, he flew the X-15 to an altitude above 50 miles, thereby qualifying as an astronaut according to the United States definition of the boundary of space. Background and career White was born in New York City on July 6, 1924. After graduating from high school, he entered active military service in November 1942 as an aviation cadet in the United States Army Air Forces, and received his pilot wings and commission as a second lieutenant in February 1944. During World War II, he served with the 355th Fighter Group in the European Theater of Operations. He flew P-51 Mustangs from July 1944 until February 1945, when he was shot down over Germany on his 52nd combat mission. He was captured and remained a prisoner of war until his release in April 1945. He then returned to the United States, left active duty in December 1945, and became a member of the Air Force Reserve at Mitchel Air Force Base, New York, while studying Electrical Engineering at New York University. He earned his Bachelor of Science degree from there in 1951, and a Master of Business Administration degree from the George Washington University in 1966. White was recalled to active duty in May 1951 for the Korean War, where he served as a pilot and engineering officer with the 514th Troop Carrier Wing at Mitchel Air Force Base. In February 1952, he was assigned as a fighter pilot and flight commander with the 40th Fighter-Interceptor Squadron, based at Johnson Air Base, Japan. In August 1953, he returned from overseas to serve as a systems engineer at Rome Air Development Center, Griffiss Air Force Base, New York. Test pilot White attended the United States Air Force's Experimental Flight Test Pilot School at Edwards Air Force Base, California, and became a test pilot, flying advanced models such as the F-86 Sabre, F-89 Scorpion, the new F-102 Delta Dagger, the F-104 Starfighter and the F-105 Thunderchief. He was promoted to Deputy Chief of the Flight Test Operations Division,