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What is a revolving aerofoil to provide lift or to control a plane in flight called?
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∙ 14y ago
rotor
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∙ 14y ago
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What is the revolving aerofoil used to provide lift or to control a plane in flight called?
I'm not entirely sure what you are trying to ask, but because of your usage of the term "revolving aerofoil," I will explain a simplified theory of operation of a standard helicopter to answer your question.The revolving Airfoil used to provide lift and most control of an aircraft would apply only to a Helicopter, because the revolving Main Rotor is the "wing" of this type of aircraft (as opposed to a non-rotary airfoil on a fixed-wing aircraft). Without getting into detail on the cyclic and collective controls that the pilot uses, let us just understand that the Airfoil rotates on the helicopter and when the pitch (the angle of the blade in respect to the flow of air) of the blades are increased, the main rotor will provide upward lift for the helicopter. Through the use of the pilot's controls, the blade pitch can be manipulated in such a way that the helicopter can be pitched forward or backward, and banked (rolled) to the left or the right, as well as providing upward lift. However, because of the torque generated by the rotation of the Main Rotor, the Tail Rotor is designed to counteract the tendency of the entire fuselage to spin opposite of the Main Rotor direction of rotation.In summation, the Main Rotor is a revolving airfoil that generates lift while also giving pitch and bank control to the helicopter. The Tail Rotorprovides yaw control. -APTech
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