... and strong resistance of impact. High tenacity rotor wing. Specifications1.4-axis F450 Multi Flame Wheel 2.Flame Strong Smooth KK ... CH: 1, Aileron/ flap 2 Lift and down 3,accelerograph 4,Heading Direction 5,Remote control calibration( Switch channel) 6,PTZ ... , PTZ roll servo, 3, No.1 motor input 4,No.2 motor input 5, No.3 motor input 6,No.4 motor input Dual axis PTZ ...