Convair NB-36H Crusader 51-5712, Nuclear Test Aircraft, with Boeing B-50 Superfortress, 1955 Published on July 19, 2012 in 20 July 1955Full resolution (2560 × 2048) Next → The Convair NB-36H Crusader 51-5712, the Nuclear Test Aircraft, with a Boeing B-50 Superfortress chase aircraft, 1955. (U.S. Air Force)