Features Specifications:Sell T-REX 700 Nitro Pro Combo r/c helicopter  Product Description: Fuel Tank Capacity:630cc.  Features: 1.Simple and light weight design provides awesome flight performance. 2.+-13degree collective pitch is possible for extreme 3D performance. 3.Heavy duty tail with thrust bearings. 4.Clutch, Fan and Bell assembly provide a very smooth operation even at high RPM. 5.Forward mounted tail servo helps to keep exhaust oil from entering servo also improves the CG. 6.Battery tray designed for easy and clean radio gear installation. 7.Fuel Tank Capacity 630cc. 8.Heavy duty tail with thrust bearings. 9.Torque Tube driven tail for incredible 90 sized performance. 10.Rigid frame design that can also handle hard crashes without damage. 11.Super engine cooling system very efficient airflow to provide unequaled cooling and horsepower. 12.New main gear with one-way bearing design for high torque. 13.Ready to fly weight (no fuel) is an incredible 4.2Kg.