The Boeing XB-59 (model number 701), was a 1950s proposal for an American supersonic bomber 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 XB-59 (model number 701), was a 1950s proposal for an American supersonic bomber 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.
Source: Wikipedia "Boeing XB-59" · CC BY-SA 4.0
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