Titan Trex 450 Metal RC Helicopter 6CH 3D FLY RTF Ready To Fly For Real 3D Flights. Titan Trex 450 Electric RC Helicopter 6CH 3D FLY RTF Ready To Fly! For 3-D Flights in All Directions Up Down Left Right Upside Down etc. Equipped with the Titan 6 channel Transmitter Length: 26 Inches, Height: 10 Inches, Diameter for main blade: 28 Inches, Weight :27 Ounces! (750g) This is the Step Before Flying Gas Helicopters!