Boom-free supersonic jet aims for New York–Paris in less than 4 hours

Spike Aerospace is advancing its S-512 Diplomat supersonic business jet designed to fly from New York to Paris in under four hours without creating disruptive sonic booms. The Massachusetts company is refining the jet's "low-boom" technology to meet noise standards that could allow supersonic flight over land—currently banned since 1973—while targeting high-end travelers with a luxurious cabin promising to cut international travel times by 50%.