- High speed M20 motor - Revolving speed is affected only a little after assembling propellers and the locked-rotor current is up to 9.7A、 so we can know the torque is very large - Fixed wing aircraft needs 2PCS of motors; Quadcopter needs 4PCS - Motor voltage: 3~6V - Idle current: 120mA at 3.7V - Locked-rotor current: 1.1A at 3.7V - Revolving speed of motor: 22000RPM at 3.7V - Motor shaft diameter: 1mm、 length: 6mm Dimensions: 0.94 in x 0.39 in x 0.31 in (2.4 cm x 1.0 cm x 0.8 cm) Weight: 0.32 oz (9 g)