The Convair B-36 "Peacemaker" is a strategic bomber that was built by Convair and operated by the United States Air Force (USAF) from 1949 to 1959. The B-36 is the largest mass-produced piston-engined aircraft ever built. It has the longest wingspan of any combat aircraft ever built, at 230 ft (70 m). The B-36 was the first bomber capable of delivering any of the nuclear weapons in the U.S. arsena... Wikipedia