It is called a rotor, and it more closely resembles a wing than a propeller blade
The rotor is like the engine to the propeller. A propeller is the fan like blades on the top that spin to make the helicopter fly.
Helicopters do not have any wings. Airplanes have wings Helicopter has rotors. A helicopter has at least two sets of rotors. One rotor creates lift ( Main Rotor on the top ) & the other prevents the helicopter from spinning in circles( Tail Rotor).
The top part of a helicopter would most commonly be considered the rotor blades (which spin to provide lift).
Though an Autogryro may resemble a Helicopter, they work differently. A helicopter uses a powered shaft to turn it's wings, which are called rotors. These rotors provide lift for the craft and also give the helicopter it's momentum through air.The autogryro uses un-powered rotor blades for lift in what is called auto-rotation together with an airplane style propeller to provide the forward thrust. The combination of the propeller pushing the craft forward causes air to flow over the curved top surface of the rotor, which is spinning because of the air pushing up under it, and the air over the top of the rotor produces the lift.
Rotor blades are on top of a helicopter.
To fly, helicopters have a Propeller. Airplanes have an engine that provides thrust to push it through the air, which forces air over the wings and create lift that allows the plane to climb. Helicopters have a main propellor blades that turn about a vertical axis. This large rotor provides the Lift and forward motion to the helicopter. It also has a smaller rotor at the tail that counter acts the torsional forces created by the torque of the main rotor. An autogyro is a type of helicopter that has a propellor that pulls it forward through the air. This forces air to go through the top main rotor(like on a helicopter) and this main rotor produces the lift for the autogryo.
The rotor blades on a helicopter work the same way as wings on a fixed wing aircraft. The air passing faster over the top of the airfoil generates lift. Helicopter rotors spin so that the lift is generated without having to have forward airspeed like a fixed wing aircraft.
propeller cap
The rotor is the hub and main blades on top of every helicopter.
the rotor
My Sims Agents Questions-Where is the helicopter? the helicopter is at you head quarters and is on the very top floor
The spinning thing on top of a helicopter is called a 'rotor'. They are also on the end of boats to propel them through water.