Choppers Spinners are a type of rotor that is used in helicopters. They are responsible for providing lift and thrust to the aircraft, allowing it to take off and land safely. The rotors are made up of two or more blades that spin around a central hub. The blades are connected to the hub by a series of bearings and other components, which allow them to rotate freely. The rotors provide the necessary lift and thrust to the helicopter, allowing it to fly.