North American XA2J Super Savage
First flying on 4 January 1952, and initially envisaged as a turboprop-powered derivative of the AJ Savage., the North American XA2J Super Savage developed into a larger and faster aircraft. Unfortunately the complexity of the proposed engines and their associated gearbox to drive the contra-rotating propellers proved unreliable. In addition, the rival Douglas XA3D Skywarrior which first flew on first flew in October 1952 had a superior performance. Of the two prototypes ordered, only the first was completed before the program was terminated.
