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Supersonic jets are making a comeback

2025-02-08 13:15:00, Kuriozitete CNA

Supersonic jets are making a comeback

Last week, the American company Boom Supersonic flew faster than the speed of sound with its XB-1 supersonic demonstrator aircraft.

It is now the first non-military manned aircraft to break the sound barrier since Concorde was withdrawn from service in 2003.

It's the first step in Boom's ambitious goal of having supersonic aircraft carrying passengers by 2029.

Mach number is defined as the speed of an aircraft divided by the speed at which sound waves move through air.

To "break the sound barrier" means to fly faster than the speed of sound, with Mach numbers greater than 1.

Mach number is an important ratio, as an aircraft flies, it disturbs the air around it. These disturbances move at the speed of sound. In supersonic flight, these disturbances combine to form shock waves around the vehicle.

When people say you can see a fighter jet before you hear it, they are referring to supersonic flight: fighter jets can travel at around Mach 2.

The sound from the fighter jet is trapped within its shock wave; until the shock wave reaches your position on the ground, you will not hear the plane.





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