If you want to know how the Modern Jet Engine works, watch this video with an explanation in a logical, step-by-step manner. A jet engine keeps an aircraft moving forward using a very simple principle: Newton’s 3rd law of motion. Just as the reaction force produced by the air moves the balloon, the reaction force produced by the high-speed jet makes it move forward.
So, the working of a jet engine is all about producing a high-speed jet at the exit. It’s quite simple – the higher the speed of the jet, the greater the thrust force. This video takes us through the inner workings of a one-spool engine, two-spool engine, turbojet engine and turbofan engine.