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A silver streak flashes over the Air Force Base at Muroc, California. The slim, shark-bellied McDonnell XF-88 is unveiled as another advance in America's air mastery.
When post-war budget cuts ended many combat aircraft programs, the overriding importance of one of the most promising of these, known as Secret Project Number MX-809 (MX meaning Material, Experimental) kept it alive.
The XB-51 was Martin's answer to a 1946 Army Air Force design competition for a new ground-support aircraft to replace the A-26 Invader.