‘Son of Concorde’ supersonic jet set for major step after it completes second speed test flight within a week

A US supersonic jet racing to become the next Concorde has reached another major milestone ahead of an even bigger step coming early next year.

Supersonic aircraft XB-1, dubbed the “Son of Concorde”, has successfully completed its tenth test flight.

Boom SupersonicThis is the tenth test flight for XB-1[/caption] Boom SupersonicOne or two more are expected before going supersonic[/caption] Boom SupersonicTristan “Geppetto” Brandenburg is the aircraft’s chief test pilot[/caption]...