How Boom’s XB-1 cracked the code for silent supersonic flight
American firm Boom Supersonic’s XB-1 has once again reached supersonic speeds without producing an audible boom, following ...
Flying2h
This Company Is Taking the ‘Boom’ Out of Supersonic Flight
Boom Supersonic’s XB-1 creates a sonic boom inaudible from the ground below when flying at the exact right speed and altitude ...