Instructions: Specification: 【GF Frame Combo Version】 Features 1.Electric power system. 2.Simple and light weight design provides awesome flight performance and extreme 3D capability. 3.Rigid fiberglass 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.Tail rotor drive belt system. 9.Fully driven tail auto rotation system. 10.Tail servo boom mount. Length:850mm Height:310mm Main Blade Length:425mm Main Rotor Diameter:970mm Tail Rotor Diameter:200mm Motor Drive Gear:12T/13T Main Drive Gear:162T Autorotation Tail Drive Gear:145T Tail Drive Gear:31T Drive Gear Ratio:1:13.5:4.68/1:12.46:4.68 Weight(w/o power system):955g Flying Weight:Approx 1700g Color carton:48.3x18.7x9.8cm Outer carton:58x50x42cm ,12sets/ctn Accessories: T-REX 500(GF) Kits SetX1 set 425 fiberglass bladesX1 RCE-BL60G 60A Brushless ESCX1 (Built-in 5-6V step-less adjustable BEC) 500L Brushless motor(1600KV)X1 Motor pinion gear 12TX1 and 13T X1 Radio transmitter and electronic equipment required for assembly: 1.Transmitter(6-channel or more,helicopter system) 2.Receiver(6-channel or more) 3.Mini servoX3 4.Head lock gyroX1 5.Specialized servoX1 6.Pitch gaugeX1 7.22.2V 6S Li-Po 2100~2500mAh batteryX1