Self-propelled aircraft are typically powered by engines that generate thrust by burning fuel or by using electric motors. The most common type of engine used in self-propelled aircraft is the internal combustion engine, which uses a piston to compress and ignite a mixture of fuel and air. Other types of engines used in self-propelled aircraft include jet engines, which use a turbine to compress and ignite fuel, and electric motors, which use electricity to power the aircraft's propellers.
Self-propelled aircraft come in a variety of shapes and sizes, from small, single-engine planes to large, multi-engine jets. They are used for a variety of purposes, including transportation, recreation, and military combat.
