[Courtesy: NASA/Boom Supersonic] We know what a sonic boom sounds like ... is about one-third the size of Overture, a supersonic, SAF-powered airliner it is developing for 64 to 80 passengers ...

“But there’s absolutely no sonic boom.” Boom on Monday launched ... Scholl’s vision is for the SAF-powered commercial airliner to fly passengers anywhere in the world in four hours ...