The most important part of the mechanism of a machine is engine. Similarly, aviation machines are no example and modelling the engines is the most tedious job in aircraft modelling. Every machine in the world has a source of power which gives it the power to function. As same as every machines modern aircraft have its own engines to function it properly. An aircraft engine is the component of the population system of an aircraft. It generates mechanical power necessary for flying.
Aircraft engines are of different types one of them is lightweight piston engines or gas turbines, except for small helicopter, UAVs which are all mostly electric aircraft.
Development of engine is actually a vast industry working in close interaction with aircraft modelling industry.
