The T-REX 600CF from Align Helicopters literally sets a new standard in both quality and price. This is truly an inexpensive 600 Size machine with superb quality. The T-REX 600CF continued the quality standard which was first established with its smaller brother the T-REX 450. The T-REX 600CF gives pilots enormous control in both precision flying as well as 3D maneuverability. The T-REX 600CF is a full size, powerful radio controlled helicopter which was designed around the experienced pilot. The T-REX 600CF uses full size 600mm rotor blades and it is powered by a ballistic combination of both a large brushless motor and lithium packs (in series). If you are after a high quality helicopter with the ability to perform any 3D maneuver desired, the T-REX 600CF is it. Precision cyclic control, precision tail rudder control and beautiful finish on all carbon and CNC aluminum parts comes standard on the T-REX 600CF. Note: Kit does not include main rotor blades. Includes: T-Rex 600 Carbon Graphite kit (Black) 600XL high performance motor 75A 6-cell Lithium helicopter electronic speed controller 1200mAh Lithium Polymer receiver battery pack 3A/5.8V BEC with step down regulator for tail servo Required to Complete: 3 full size, high speed cyclic servos Tail servo Gyro Receiver with a minimum of six channels A six channel transmitter capable of electronic 120 degree CCPM mixing Specifications: Length: 1200mm Height: 388/405mm Main Blade Length: 600mm Main Rotor Diameter: 1350mm Tail Rotor Diameter: 240mm Motor Pinion Gear: 10T(11T optional) Main Drive Gear: 170T Autorotation Tail Drive Gear: 180T Tail Drive Gear: 40T Drive Gear Ratio: 1:17.0:4.5/1:15.45:4.5 Weight(w/o main blade): 1400g Flying Weight: Approx 3000g(6.6 lbs)