This is the radio controlled, glow powered, Titan X50F 50 Class 3D Flybarless Helicopter Kit with the Redline 53H Engine and Hi-Flow Muffler from Thunder Tiger. FEATURES: Control System: 120° eCCPM Electronic Cyclic Collective (140° option) Main Frame: Carbon, slim profile design 1.2" (30mm) wide, spacious three deck tray for electronic devices Rotor Head: Flybarless design for less drag, more power and faster response time, enlarged titanium rod turnbuckles for rigidity and extreme pitch response Engine: Thunder Tiger RL-53H with glow plug, 2 needle carb, lightened hypereutectic machined Al-Si ringed type piston and Hi-Flow muffler Main Blades: Carbon fiber 600mm Main Rotor Hub: Lightweight and rigid one-piece Main Rotor Grips: Assembled 3-piece metal for easy maintenance Tail Boom: Aluminum Canopy: Preprinted fiberglass Main Shaft: Hardened, 0.39" (10mm) diameter Main and Tail Gear Design: Lightweight and vented Feathering Shaft: Hardened 0.27" (7mm) diameter Tail Drive type: Torque Tube Fan: Shrouded for efficient heat dissipation Paddles: Lightweight, 1.06oz (20g) for high-performance 3D Base Plate and Fin: Carbon Fuel Tank: 16oz (480cc) INCLUDES: Titan X50B 50 Class 3D Helicopter Kit with Fuel Tank, Header Tank Redline 53H Engine, Hi-Flow Muffler, Main Blades, Foam Blade Holder, Decals and Instruction Manual REQUIRES: Radio: At least 6-channel heli radio with 5 servos Gyro: Three axis Receiver Battery: At least 1000mAh Glow Fuel: Heli blend with 15-30% nitro content Building and field equipment SPECS: Fuselage Length: 47.25" (1200mm) Fuselage Width 7.87" (200mm) Height: 15.75" (400mm) Main Rotor Diameter: 52.95" (1345mm) Tail Rotor Diameter: 10.25" (260mm) Gear Ratio: Total Fuel Capacity: 16.2oz (480cc) Fully Equipped Weight: 6.94lbs (3150g) jxs 01/27/12 ir/jxs