Quadcopter Kits & Spares
A Quadcopter is a milticopter helicopter that is lifted and propelled by four rotors. The one which is sold through robomart is a great combo of quad frame, ESCs, propellers, KK multi copter control board v 5.5 with USB programmer,BLDC motors, quadcopter parts, 2.4 GHz transmitter and receiver so that you can quickly build your own DIY quadcopter kit. Unlike most helicopter, quadcopter use two sets of identical fixed pitched propellers; two clockwise (CW) and two counter-clockwise (CCW). These use variation of RPM to control lift and torque. Control of vehicle motion is achieved by altering the rotation rate of one or more rotor discs, thereby changing its torque load and thrust/lift characteristics.