This is the radio controlled, glow powered, Titan X50B 50 Class 3D Helicopter Kit from Thunder Tiger. FEATURES: CCPM: eCCPM Electronic Cyclic Collective Main Frame: Carbon, slim profile design 1.2" (30mm) wide, spacious three deck tray for electronic devices Rotor Head: Underslung for ultimate 3D performance, with internal flapping stiffness control system for fast and sharp cyclic and collective response. Can be set up for any flying style from aggressive to docile. Main Blades: Carbon fiber Tail Boom: Aluminum Canopy: Preprinted fiberglass Main Shaft: Hardened, 0.39" (10mm) diameter Main Gear Design: Lightweight and vented Feathering Shaft: Hardened 0.27" (7mm) diameter Paddles: Lightweight, 1.06oz (20g) for high-performance 3D Fin: Carbon INCLUDES: Titan X50B 50 Class 3D Helicopter Kit with Fuel Tank, Header Tank Main Blades, Foam Blade Holder, Decals and Instruction Manual REQUIRES: Radio: At least 6-channel heli radio with 5 servos Gyro: Heading hold Receiver Battery: At least 1000mAh Engine: .50 cu in heli type Glow Fuel: Heli blend with 15-30% nitro content Building and field equipment SPECS: Fuselage Length: 47.24" (1200mm) Fuselage Width 7.87" (200mm) Height: 15.75" (400mm) Main Rotor Diameter: 52.95" (1345mm) Tail Rotor Diameter: 10.24" (260mm) Gear Ratio: 8.5:1:4.56 Total Fuel Capacity: 16.2oz (480cc) Fully Equipped Weight: 6.83lbs (3150g) jxs 09/09/10 ir/jxs