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Boom Supersonic's XB-1 jet breaks sound barrier 3 times on final test flight (video, photos)Boom Supersonic's XB-1 jet went out in style on Monday (Feb. 10). The XB-1 broke the sound barrier three times during its 13th and final test flight, which lifted off Monday from the Mojave Air ...
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See The Boom XB-1 Rip Through The Air As It Breaks The Sound BarrierBoom Supersonic broke the sound barrier in late January with its XB-1 test jet, paving the way forward in the startup's efforts to build its own supersonic airliner. Boom and NASA released a ...
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