The purpose of the propeller is to provide a method of propulsion so the aircraft is able to move forward through the air. The propeller itself consists of two or more blades connected together by a central hub that attaches the blades to the engine shaft. The propeller blades are shaped much like a wing of an aircraft, using the rotation power of an engine rotates the propeller blades produce lift (this lift is referred to as thrust) which moves the aircraft forward. #Airplane #Propeller #prop