Boom Supersonic's XB-1 broke the sound barrier in March 2024, making a 2029 return of commercial supersonic flight plausible - if an unproven in-house engine delivers.
Boom Supersonic's XB-1 broke the sound barrier in 2024, making it the most credible attempt at commercial supersonic flight since Concorde retired in 2003.
Boom Supersonic's XB-1 demonstrator broke Mach 1 without afterburner in October 2024, validating the aerodynamic models that underpin the planned Overture supersonic airliner.
Boom Supersonic's XB-1 demonstrator reached Mach 1.12 in January 2025, marking the most credible progress toward commercial supersonic flight since the Concorde retired in 2003.
Boom Supersonic's XB-1 broke Mach 1 in January 2024, validating key aerodynamics - but the uncertified Symphony engine remains the single open variable in Overture's commercial viability.