B-52 Stratofortress
This U.S. long-range heavy bomber plane was designed by Boeing in 1948 and was first flown in 1952, but not delivered to the military until 1955. Originally this plane was supposed to be an atomic bomb carrier with the ability to reach as far as the Soviet Union, but it ended up being used in many military missions instead. Today, more than 70 B-52 airplanes remain in-use for the U.S. Air Force.

B-52 Stratofortress