A propeller works in a similar way that a screw works. The blades of the propeller are an aerofoil, Which generates an aerodynamic force as they spin, The same as any other aerofoil that is moving through the air. The blades of a propeller are slightly angled. As the blade rotates, air accelerates over the front surface, Causing a reduced static pressure ahead of the blade. This results in a forward thrust, which pulls the aircraft along. When the aircraft is stationary, The spinning propeller blades cause purely rotational velocity. As the aircraft moves forward in flight, The propeller produces both rotational and forward velocity. The combined vector of these forces is called the pitch, the angle of advance. As … Continue reading How Propeller Works & Functions Of Propeller