... quality ultrathin metal canopy with ultra light weight and strong resistance of impact. High tenacity rotor wing. Specifications1.4 ... smooth flight, Of course, primary can be good to get started ,also4-axis F450 Multi ... servo, 3, No.1 motor input 4,No.2 motor input 5, No.3 motor input 6,No.4 motor ... : 0.65lb/282g -Made by advanced engineering material,super strong & smooth- all in one(ready to fly)100% ...