The Boeing XB-59 (model number 701), was a 1950s proposal for an American supersonic
bomber
A bomber is a military combat aircraft that utilizes
air-to-ground weaponry to drop bombs, launch aerial torpedo, torpedoes, or deploy air-launched cruise missiles.
There are two major classifications of bomber: strategic and tactical. Strateg ...
aircraft.
Design and development
In 1949 the US government canceled the
Boeing XB-55 contract, which had been an effort to produce a subsonic replacement for the just-being-introduced Boeing
B-47 Stratojet
The Boeing B-47 Stratojet (Boeing company designation Model 450) is a retired American long- range, six-engined, turbojet-powered strategic bomber designed to fly at high subsonic speed and at high altitude to avoid enemy interceptor aircraft ...
. The XB-55 project had started in 1947, but by the end of the decade it was apparent that if strategic penetration in warfare were to be successful at all, it would require aircraft much faster than the jet
fighter aircraft
Fighter aircraft (early on also ''pursuit aircraft'') are military aircraft designed primarily for air-to-air combat. In military conflict, the role of fighter aircraft is to establish air supremacy, air superiority of the battlespace. Domina ...
which were then being placed into operation. Thus, the funding made available by the XB-55 cancellation was earmarked for the study of a supersonic medium bomber, and a request for proposals was extended to several aircraft companies.
Boeing submitted a proposal for a four-engine, high-wing aircraft with a highly streamlined
fuselage
The fuselage (; from the French language, French ''fuselé'' "spindle-shaped") is an aircraft's main body section. It holds Aircrew, crew, passengers, or cargo. In single-engine aircraft, it will usually contain an Aircraft engine, engine as wel ...
. The four engines would be buried in thickened wing roots; the remaining wing planform was highly tapered.
Developed under weapons system designation MX-1965, the XB-59 was to have a crew of three, and would be powered by four
GE J73-X24A turbojet
The turbojet is an airbreathing jet engine which is typically used in aircraft. It consists of a gas turbine with a propelling nozzle. The gas turbine has an air inlet which includes inlet guide vanes, a compressor, a combustion chamber, and ...
engines, mounted in the roots of the 73-foot span wings. The landing gear would be similar to the
bicycle
A bicycle, also called a pedal cycle, bike, push-bike or cycle, is a human-powered transport, human-powered or motorized bicycle, motor-assisted, bicycle pedal, pedal-driven, single-track vehicle, with two bicycle wheel, wheels attached to a ...
arrangement found on the B-47 and
B-52 Stratofortress
The Boeing B-52 Stratofortress is an American long-range, subsonic aircraft, subsonic, jet-powered strategic bomber. The B-52 was designed and built by Boeing, which has continued to provide support and upgrades. It has been operated by the ...
, with wingtip-mounted outriggers.
The Boeing contract for the XB-59 was canceled in late 1952 after the
Convair
Convair, previously Consolidated Vultee Aircraft Corporation, was an American aircraft-manufacturing company that later expanded into rockets and spacecraft. The company was formed in 1943 by the merger of Consolidated Aircraft and Vultee ...
company's submission, designated
B-58 Hustler
The Convair B-58 Hustler, designed and produced by American aircraft manufacturer Convair, was the first operational bomber capable of Mach 2 flight.
The B-58 was developed during the 1950s for the United States Air Force (USAF) Strategic Air ...
, was selected for development.
The Boeing effort was a design study only, and no construction was involved.
Specifications
See also
External links
XB-59, from USAF Museum
{{USAF bomber aircraft
B-59
Quadjets
Cancelled military aircraft projects of the United States
High-wing aircraft
1950s United States bomber aircraft
Aircraft with retractable bicycle landing gear