A supersonic jet built by Boom Technology broke the sound barrier for the first time Tuesday, advancing its bid to resurrect high-speed passenger flights.

The Colorado-based company is aiming to build a Concorde-like supersonic aircraft—but has hurdles to clear before realizing that goal.

Boom plans to focus next on the Overture airliner, which it says will carry as many as 80 passengers while moving at about twice the speed of today’s subsonic airliners. “XB-1’s flight demonstrates that the technology for passenger supersonic flight has arrived,