A Plane Just Achieved Supersonic Flight Without the Sonic Boom
But while the successful test flight of XB-1 shows that supersonic flight without sonic booms is technically feasible, the ...
FLYING Magazine11d
An Inaudible Sonic Boom, Visualized
Boom Supersonic test pilot uses precise maneuvering to help NASA snap a photo of the firm’s civil supersonic jet in flight.
New Scientist1mon
How the XB-1 aircraft went supersonic without a sonic boom
When the experimental XB-1 aircraft broke the sound barrier three times during its first supersonic flight on 28 January, it did not produce a sonic boom audible from the ground, according to US ...