Jet Engines Documentary A jet engine is a reaction engine discharging a fast moving jet that generates thrust by jet propulsion in .\rbr\rbrA jet engine is a reaction engine discharging a fast moving jet that generates thrust by jet propulsion in accordance with Newtons laws of motion. This broad .\rbr\rbrA Documentary about Rolls Royce made by BBC (all rights reserved)..enjoy it! :)\rbr\rbrHow a Jet Engine Works (Full Documentary) - DOCFILMS A jet engine is a reaction engine discharging a quick relocating jet that produces thrust by jet .