Boom XB-1 Progressing Toward Supersonic Flight
The demonstrator completed its fifth test flight with plans to fly supersonic this year
Boom XB-1 supersonic aircraft (Photo: Boom Supersonic)
In its third test flight in as many weeks, Boom's XB-1 demonstrator reached Mach 0.69 and checked off more tests in the quest toward supersonic flight. © Boom Supersonic

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