 Overall, he flew 223 combat missions in the F-51 Mustang, F-80 Shooting Star, and F-86 Sabre fighters.From December 1952 to February 1956, he served as a gunnery instructor and squadron commander at Nellis Air Force Base and he was on the Air Training Command Fighter Gunnery Team in 1954 and 1955.During this time, he wrote the book "No Guts, No Glory", which has been used as a basis for fighter combat operations for many of the world's air forces, such as Royal Air Force, the U.S. Marine Corps, Chinese Nationalist, Korean Air Force, and U.S. Air Force since 1955.