Add Yahoo as a preferred source to see more of our stories on Google. Boom Supersonic's XB-1 test jet broke the sound barrier for the first time on Tuesday. The XB-1 is a subscale version of its ...
The way forward for the future of supersonic flying.
Denver-based Boom Supersonic wants to revive Mach-speed travel with its Overture plane. Overture would feature improved efficiency, safety, and a quieter engine than Concorde. Boom's innovations ...
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