RC helicopter Align T-REX 500 ESP Super Combo rc h

Instructions:Specification:CF Frame Combo Version Features 1.Electric power system. 2.Simple and light weight design provides awesome flight performance and extreme 3D capability. 3.Rigid carbon fiber frame design. 4.Beautiful factory painted fiberglass canopy. 5.Rotor head/tail with thrust bearings. 6.Direct-to-swash CCPM linkage. 7.Center of gravity of Battery tray designed close to the rotor head. 8.High efficiency torque tube drive system. 9.Fully driven tail auto rotation system. 10.Tail servo boom mount. Length:840mm Height:310mm Main Blade Length:425mm Main Rotor Diameter:970mm Tail Rotor Diameter:200mm Motor Ponion Gear:13T Main Drive Gear:162T Autorotation Tail Drive Gear:145T Tail Drive Gear:31T Drive Gear Ratio:1:12.46:4.68 Weight(w/o power system):1020g Flying Weight:Approx 1700g Color carton:48.3x18.7x9.8cm Outer carton:58x50x42cm ,12sets/ctn Accessories:T-REX 500 ESP Kit Set X1 set 425D carbon fiber blades X1 RCE-BL60G 60A Brushless ESC X1 (Built-in 5-6V step-less adjustable BEC) 500M Brushless motor X1 Motor ponion gear 13T X1 DS510 Digital Servo X3 DS520 Digital Servo X1 GP780 Head lock gyro X1 Radio transmitter and electronic equipment required for assembly: 1.Transmitter(6-channel or more,helicopter system) 2.Receiver(6-channel or more) 3.Pitch gaugeX1