The aircraft has been under development in the US since 2014, and in the future they want to create a supersonic passenger airliner based on it, which will become the third in history after the Soviet Tu-144 and the British-French Concorde.
According to the plan, it will be able to accelerate up to Mach 1.7 (2080 km/h), and the flight from London to New York will take ~3.5 hours against 7-8 on a conventional airplane