Aircraft engines are powerful machines that provide the thrust needed for an aircraft to fly. They work by converting fuel into energy, which propels the aircraft forward. There are two main types of aircraft engines: jet engines and piston engines. Jet engines are commonly used in commercial airliners, while piston engines are often found in smaller planes. The basic operation of an aircraft engine involves drawing in air, compressing it, mixing it with fuel, and igniting the mixture to create a high-speed exhaust that pushes the aircraft forward. This process is essential for both military aircraft and cargo planes, enabling them to transport people and goods efficiently.