This then was the direct ancestor of the helicopter rotor and the aircraft propeller.

While similar to a helicopter rotor in appearance, the autogyro's rotor must have air flowing through the rotor disc to generate rotation.

Turboprop, turboshaft and turbofan engines have additional turbine stages to drive a propeller, bypass fan or helicopter rotor.

The helicopter rotor system consists of a two-bladed main rotor and two-bladed anti-torque rotor on the tail, each equipped with a teetering hinge.

This type of pitch control, known as cyclic pitch, allows the helicopter rotor to provide selective lift in any direction.