Starting an Aeronautical Conventional Engine

Starting an aeronautical conventional engine is a rather simple procedure if it has a starter; but if you have to resort to hand propping, you should take some precautions and follow a carefully rehearsed technique, and this is the recommended method. 

Before we start this discussion lets remember that a propeller is an extremely dangerous device for any animal or person once the engine of an aircraft is on. A typical propeller like those used in small GA airplanes weights between seven and eleven kilograms and on idle will turn at about 500RPM; we need not explain what could happen to anyone or anything crossing by accident its path. 

So, never attempt to hand prop an airplane without proper training from a qualified flight instructor.

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