noun(the sound barrier)
The increased drag, reduced controllability, and other effects which occur when an aircraft approaches the speed of sound, formerly regarded as an obstacle to supersonic flight.
More example sentences
- On its third flight, the aircraft broke the sound barrier, reaching a speed of Mach 1.1.
- The shock waves set up when you go through the sound barrier also add to drag.
- As a result, an aircraft creates a sudden discontinuity in pressure and temperature called a shock wave as it breaks the sound barrier.
Definition of sound barrier in:
- The US English dictionary