Boom Supersonic's XB-1 aircraft set a new speed record during its latest test flight on Nov. 5, marking a major milestone toward flying at supersonic speeds.

Boom Supersonic's XB-1 jet sets new speed record during 7th test flight

Source: space
Source Link: https://www.space.com/space-exploration/tech/boom-supersonics-xb-1-jet-sets-new-speed-record-during-7th-test-flight