Boom’s XB-1 becomes first civilian jet to break through supersonic barrier

The thunderous crack of a sonic boom echoed over California's Mojave Desert this week as Boom Supersonic's XB-1 jet shattered the sound barrier — a first for a privately built civil aircraft. Piloted by Tristan "Geppetto" Brandenburg, the sleek prototype hit Mach 1.12 (750mph) at 35,290 feet. 

This reignites hopes of supersonic travel becoming mainstream two decades after the famous Concorde's retirement.

Unlike past government-led projects, XB-1 was developed by a nimble team using carbon composites, augmented reality cockpit displays, and precision aerodynamics tested over 11 flights since March 2024. Lessons from XB-1 will shape Overture, Boom's planned 80-seat airliner aiming to slash flight times globally at Mach 1.7.

This milestone pays homage to history: XB-1 broke the barrier in the same skies where Chuck Yeager first achieved supersonic flight in 1947. 

For ex-Concorde pilot Mike Bannister, it is personal. "I have been waiting over 20 years for the return of supersonic speeds, and XB-1's historic flight is a major landmark towards my dreams being realised."

Overture, already backed by 130 airline orders, promises eco-friendly operations using sustainable fuel. A new North Carolina factory will produce 66 jets per year.