Hand cranking to start the aircraft

Can a small aircraft be started with a hand crank?

Some small, low-powered aircraft can be started by hand cranking the propeller, also known as propping. Throughout the development of aircraft reciprocating engines, various starter systems have been used.

How does hand propping a plane work?

When hand propping an aircraft, the person outside is the one in control, though the pilot will typically direct the sequence. The engine will then be turned over several times with the ignition off to purge the cylinders of stale air and oil, which is especially critical on radial and inverted engines.

How do I start an aircraft engine?

Detailed instructions for starting a specific type of engine can be found in the manufacturer’s instruction book. Before starting an aircraft engine: Position the aircraft to head into the prevailing wind to ensure adequate airflow over the engine for cooling purposes.

What should I do before starting an aircraft engine?

Before starting an aircraft engine: Position the aircraft to head into the prevailing wind to ensure adequate airflow over the engine for cooling purposes. Make sure that no property damage or personal injury occurs from the propeller blast or jet exhaust.

How do airplanes start their engines?

Airplanes start their engines through various methods. Some small, low-powered aircraft use hand cranking of the propeller or 'propping' for starting. In the past, ignition system devices like the booster coil, induction vibrator, or impulse coupling were used to provide a hot spark to compensate for weak battery power.

How to avoid accidents when hand propping an engine?

A few simple precautions help to avoid accidents when hand propping the engine. While touching a propeller, always assume that the ignition is on. The switches that control the magnetos operate on the principle of short-circuiting the current to turn the ignition off.