Gartt GT450L DFC Torque Tube Version RC Helicopter Kit Fits Align Trex<br /><br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /><br /> Description:<br /><br /> Length: 703mm<br /><br /> Height: 204mm<br /><br /> Width: 110mm<br /><br /> Main rotor diameter: 710mm<br /><br /> Tail rotor diameter: 171mm<br /><br /> Motor drive gear: 12T<br /><br /> Main drive gear: 121T<br /><br /> Autoration tail drive gear: 106T<br /><br /> Tail drive gear: 25T<br /><br /> Drive gear ratio: 1:10.08:4.24<br /><br /> Weight(without power system): 1100g<br /><br /> Manufacturer recommended age: 18 years and up<br /><br />  <br /><br /> Package include:<br /><br /> 1 X GT450L DFC TT Version RC Helicopter Kit<br /> (with Glass Fiber Canopy and Carbon fiber Main Blade)