The Thunder Tiger Raptor E550 is a flybarless almost-ready-to-fly helicopter kit which is 95% assembled and pre-adjusted at the factory. The RC helicopter is engineered with three 550 carbon blades, 1150kV ACE R/C Ripper brushless motor, and Castle Talon 90 speed controller for outstanding performance, making it ideal for performing hardcore 3D aerobatic stunts. And the 140-degree ECCPM Control System helps you to achieve first-flight success and build pilot skills quickly. It's crafted with ultra durable body frame and reinforced support bracket to withstand crashes and collision. 550 Carbon BladesWith 550 carbon blades the E550 is incredibly responsive during aerobatic 3D flight, making it easy to perform backwards and inverted flight, flips and rolls, active pirouette. Castle Creations Talon 90 Provides a robust 9A continuous, 20A peak BEC power supply to the radio system for enhanced stability and flexibility. 1150kV Ace R/C Ripper Brushless MotorOffers ample power to fly with confidence, whether you're learning how to hover or tackling aggressive 3D maneuvers. 140-Degree ECCPM Control SystemGive you just the right level of maneuverability for learning aerobatics and inverted flight. Ready to GoIt comes 95% assembled and pre-adjusted right out of the box with low maintenance requirement so you can quickly get it completed for the first flight. Specifications Brand Thunder Tiger Model E550 Swashplate ECCPM (140°) Rotor Blade 550mm Inc’d Rotor Dia. 1245mm(45”) Tail Blade 95mm Incl’d Tail Rotor Dia. 237mm(9.33”) Tail Driven Belt Driven ESC Castle Creations Talon 90A Incl’d Gear Ratio (EM:T): 10.09 : 1 : 4.56 Gyro GT5.2 Incl’d Battery Lipo, 6S, 3.7~5Ah, 35C Req’d (not included) Product Weight 3.65kg Package Weight 4kg Product Size 39 x 14 x 115 cm Package Size 42 x 15 x 118 cm Package Contents 1 x Thunder Tiger E550 3-Blade Electric RC Helicopter