American aerospace startup Boom made history on Tuesday by breaking the sound barrier during the test flight of its Boom ...
About 35,000 feet (10,670 meters) over the Mojave Desert, northwest of Los Angeles, Boom Supersonic's XB-1 became the first ...
Boom's Supersonic XB-1 jet became the “world’s first independently developed supersonic jet” to break the sound barrier ...
On its 12th test flight, the Boom XB-1 prototype broke the sound barrier three times and achieved a top speed of Mach 1.1.
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