Boeing XB-59

The Boeing XB-59, model number 701, was a 1950s proposal for an American supersonic bomber. After the US government cancelled the Boeing XB-55 contract in 1949, the funding was earmarked for a study of a supersonic medium bomber and several companies were asked for proposals. Boeing offered a four-engine, high-wing aircraft with a highly streamlined fuselage and a highly tapered wing, with the four engines buried in thickened wing roots. Developed under weapons system designation MX-1965, it was to carry a crew of three and be powered by four General Electric J73-X24A turbojets, with bicycle landing gear like the B-47 and B-52 and wingtip outriggers. The contract was cancelled in late 1952 when Convair's B-58 Hustler was chosen. It was a design study only and nothing was built.