RC Drones, additionally called a quad rotor helicopter or quadrotor, is a multi-rotor helicopter that is raised and pushed by four rotors. Quadcopters are classified as rotorcraft, instead of fixed-wing airplane, due to the fact that their lift is generated by a collection of rotors (vertically oriented props).
Quadcopters normally utilize 2 pairs of identical fixed pitched props; 2 clockwise (CW) and also 2 counterclockwise (CCW). These make use of independent variant of the speed of each rotor to accomplish control. By transforming the rate of each rotor it is possible to particularly produce a desired complete thrust; to locate for the center of drive both laterally and also longitudinally; and also to produce a wanted overall torque, or transforming force