An animated version of this slide is also available. Most modern passenger and military aircraft are powered by gas turbine engines, which are also called jet engines. Jet engines come in a variety of shapes and sizes but all jet engines have certain parts in common. At the top of this slide we have a picture of a Pratt and Whitney F100 jet engine, which is used in the F15 and F16 fighter aircraft. As we can see in the picture, jet engines are complicated pieces of machinery.
Jets have a lot of parts which spin on a central shaft.
To enclose the spinning parts, a jet engine is shaped like a long cylinder. At the bottom of the slide we have a much simpler computer drawing of the engine parts. In the computer drawing, we have cut out a portion of the engine to have a look inside. Various parts on the photograph are labeled and the corresponding parts on the computer drawing are indicated. At the front of the engine, to the left, is the inlet which brings outside air into the engine.