The first one to reach outer space in the Man In Space Soonest program was which Captain in the United States Air Force, an American World War II pilot, an experimental physicist, and NASA test pilot?
Joseph A. Walker Joseph Albert "Joe" Walker (February 20, 1921 – June 8, 1966) flew the world's first two spaceplane flights in 1963, thereby becoming the United States' seventh man in space. Walker was a Captain in the United States Air Force, an American World War II pilot, an experimental physicist, a NASA test pilot, and a member of the U.S. Air Force Man In Space Soonest spaceflight program. His two X-15 experimental rocket aircraft flights in 1963 that exceeded the Kármán line – the altitude of 100 km , generally considered to mark the threshold of outer space – qualified him as an astronaut under the rules of the U.S. Air Force and the Fédération Aéronautique Internationale (FAI).
Cesar Rodriguez (United States Air Force pilot) Cesar Antonio "Rico" Rodriguez was a United States Air Force officer and pilot from 1981 to 2006. With his three air-to-air combat victories, he joined Thomas Dietz, Robert Hehemann, and Robert Wright (all USAF officers) as the closest to becoming an air ace than any American pilot since the Vietnam War. Rodriguez scored his first two kills in 1991, during the first Gulf War, against a Mikoyan MiG-29 and a Mikoyan MiG-23 of the Iraqi Air Force. His third kill came against a MiG-29 of the Yugoslavian Air Force during the 1999 NATO bombing of Yugoslavia.