To achieve supersonic speed, the airframe must withstand adverse aerodynamic effects due to the transonic aerodynamic effects of the transonic movement of air.

This transitory period between subsonic and supersonic, known as transonic speeds, results in various changes in airflow that affect the plane's entire structure.

Mach 0.82 represents the lowest end of what is known as “transonic regime,” which ranges from Mach 0.82 to Mach 1.2. Transonic is defined as the middle range between subsonic and supersonic.

Boom Supersonic is accelerating the test flight pace for its XB-1 prototype aircraft, reaching on Monday a new top speed of Mach 0.69 which is more than halfway to supersonic flight. It was the ...

MOJAVE, Calif. and DENVER, Jan. 28, 2025 /PRNewswire/ — Boom Supersonic, the company building the world’s fastest airliner, Overture, today announced the successful first supersonic flight of ...

Boom Supersonic is one step closer to launching the spiritual heir to the Concorde. The US firm's XB-1 prototype reached a transonic speed of Mach 0.95 during Test Flight 11 on January 10, 2025.

There is quite a bit of uncertainty in the transonic regime between 0.95 and 1.1 as local airflow over different parts of the aircraft transitions from subsonic to supersonic, and back to subsonic ...

Subsonic flight, NASA details, is less than Mach 1, while Transonic is equal to it and Supersonic is in excess of it. Hypersonic, then, is flight at Mach 5 or higher.

The transonic regime, when some of the flow is subsonic and some of it is supersonic, is where everything is the hardest to predict, where you’re most likely to be surprised in flight test.

Measurement (2023). [4] Recent developments in the aero-optical effects of high-speed optical apertures: From transonic to high-supersonic flows. Progress in Aerospace Sciences (2021).