Brand Name: GTB Origin: CN(Original) Tool Supplies: CNC CUTTING Material: Aluminum Alloy+ Carbon Fiber Upgrade Parts/Accessories: CNC Metal RC Parts & Accs: 450 SE V2 Frame Use: Helicopter Model Number: 450V2 Remote Control Peripherals/Devices: 450SE V2 Frame For Vehicle Type: 450SE V2 Helicopter Four-wheel Drive Attributes: Assemble frame RC remote 6ch 3D 450 SE V2 Helicopter Stand for align trex heli Spedifications And Equipment:Length:660mmHeight:230mmMain Blade Length:325mmMain Rotor Diameter:700mmTail Rotor Diameter:150mmMotor Pinion Gear:12T/13TMain Drive Gear:150TAutorotation Tail Drive Gear:106TTail Drive Gear:25TDrive Gear Ration:1:12.5:4.24/1:11.5:4.24Weight :450gFlying Weight:approx.730-760gFeatures:new head stopper / new ball link design / new main gear set / new anti rotation bracket / new metal tail servo mount new vertical/horizontal 4mm feathering shaft w/thrust bearing design / new main frames , new angle of battery plate bottom mounting of gyro label: Align Trex 450 SE V2 Helicopter Frame