Altitude and speed With the exception of scramjets, jet engines, deprived of their inlet systems can only accept air at around half the speed of sound. The inlet system's job for transonic and supersonic aircraft is to slow the air and perform some of the compression.
Altitude and speed With the exception of scramjets jet engines deprived of their inlet systems can only accept air at around ha,lf t,he speed of sound. The inlet system's job for transonic and supersonic aircraft is to slow the air and perform some of the compression.