The XB-1 prototype accelerated smoothly to reach as fast as Mach 1.11 at about 35,000 feet at 11:33 a.m., 11:38 a.m. and 11:45 a.m. Mach 1 is equal to the ...
Boom Supersonic's XB-1 breaks sound barrier in test flight XB-1 test ... Last year, it completed construction on its Overture Superfactory in Greensboro, North Carolina, where it plans to build ...
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