Velocity of a jet engine?

Question

Velocity of a jet engine?

Answer 1

Jet engines fly at the same speed as the aircraft carrying them. If question is related to air speed INSIDE the jet engine let me tell you that it depends on each engine, but it always remains below mach 1, meaning is ALWAYS sub sonic.

Answer 2

On an average a jet engine goes at 600 kmph.

Answer 3

Ganesh -

The HP nozzle stage of a turbine engine is frequently designed to create choked flow at the throat, meaning transonic or Mach 1.0. Also, many jet engines incorporate a converging / diverging exhaust nozzle, resulting in supersonic flow that creates the characteristic diamond pattern in the afterburner exhaust. Finally, some jet engines (e.g. scramjets) are designed to operate entirely in supersonic conditions - even the combustor is supersonic.