The single-seat jet, a 201-foot-long test model by Boom Supersonic, hit 844 mph just 12 minutes into its latest test flight ...
An aircraft developed by Boom Supersonic has become the first independently funded jet to break the sound barrier.
Denver-based Boom Technology's XB-1 demonstrator plane hit Mach 1.122 — 750 mph. It's the first independently developed ...
THE 'Son of Concorde' XB-1 jet is set to take off on its inaugural supersonic flight today, where it will break the sound barrier for the first time. Bosses at Colorado-based Boom Technology ...