This is the electric powered, radio controlled, Thunder Tiger Mini Titan E325 V2 3D Helicopter Kit. This version requires Motor and ESC. For RC Helicopter Pilots 14 Years of Age and Older. FEATURES: Control System: 120° eCCPM, utilizing three servos working together for the main control of the aileron, elevator and collective pitch, bell-hiller mixing ratio can be changed for different flying styles Rotor Head: Full metal CNC construction with one-piece machined aluminum mast block/servo mount Main Frame: Two-piece 0.06" (1.5mm) thick reinforced carbon Paddles: Lightweight 0.15oz (4.4g), for 3D performance Tail Boom: Aluminum Tail Assembly: Belt driven with metal tail drive gears and pulleys combined for improved tail rotor control Main Blades: Carbon fiber, 12.8" (325mm) in length Battery Tray: Molded plastic, high positioned for better aerobatics Canopy: Pre-painted FRP (fiber reinforced plastic construction) Landing Gear: Molded one-piece, black in color Main Gear: Plastic construction, 150 tooth INCLUDES: ARF Thunder Tiger Mini Titan E325 V2 3D Heli, with Main Blades, Canopy, Body, Foam Blade Holder, Decal Sheet, Instruction Manual, 1.5mm, 2.0mm, and 2.5mm hex wrenches to assemble the kit REQUIRES: Motor: Outrunner type such as the Thunder Tiger OBL 29/37-10H, TTRG2001 ESC: 40A, TTRM2003 Radio System: 6ch heli with receiver, three mini standard servos, one high-torque mini rudder servo Battery: 11.1V LiPo, at least 2000mAh (GPMP0406) NOTE if using this battery, cut the bullet connectors from the ESC and solder on Dean"s Ultra Male connectors (WSDM1302) to mate with this battery Gyro: Heading lock Battery Charger: LiPo compatible Building and field equipment SPECS: Fuselage Length: 25.2" (640mm) Fuselage Width: 8.79" (230mm) Total Height: 8.2" (209mm) Main Rotor Diameter: 28.46" (745mm) Tail Rotor Diameter: 6.14" (156mm) Gear Ratio: 1:11.5:4.4 Weight: 28.35oz (800g) COMMENTS: For Replacement Ball Bearings use: Qty. Size Location Qty. Bearing 1 5x11mm Upper Bearing Housing 1 DTXC1547 1 5x11mm Main Shaft 1 DTXC1547 2 3x8mm Tail Rotor Shaft 1 TTRE6541 2 2x5mm Tail Unit Not Carried jxs 12/07/10 ir/jxs