The XB-1 broke the sound barrier three times during its 13th and final test flight, which lifted off Monday from the Mojave ...
During the second supersonic flight of the XB-1 technology demonstrator today, the jet exceeded Mach 1 three times without a boom being detected by microphones on the desert floor below.
WGHP-TV Greensboro on MSN15h
Boom Supersonic has successful second test flight breaking sound barrierGrammy-winner Kendrick Lamar on Sunday became the first solo rap artist to headline a Super Bowl halftime show, with his ...
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