Conical shockwave with its hyperbola-shaped ground contact zone in yellowĪ sonic boom is a sound associated with shock waves created when an object travels through the air faster than the speed of sound. Mach cone angle NASA data showing N-wave signature. Observers hear nothing until the shock wave, on the edges of the cone, crosses their location. A sonic boom produced by an aircraft moving at M=2.92, calculated from the cone angle of 20 degrees. Since the source is moving faster than the sound waves it creates, it leads the advancing wavefront. The sound source is travelling at 1.4 times the speed of sound (Mach 1.4).
