Product Parameters:Product material: metal + electronic componentsFuselage length (without paddle): 755mmFuselage height: 180mmFuselage width: 265mmColor: yellowWeight (including battery): 1555gMain rotor diameter (wingspan): 810mmMain rotor length (single): 370mmTail rotor diameter (wingspan): 125mmTail drive motor: 2008 brushless motorMotor: 3508 brushless motorESC: 60A dual brushless speed controllerFlight modes: GPS self-stabilizing mode, 3D manual mode, one-key return, low-battery return, out-of-control return, one-key inverted flight, semi-automatic assisted flight, (circumferential brushing pots, 8-word course), satellite positioning module: GPS/GLONASS with omnidirectional positioning, hovering accuracy: Horizontal: ±1.5m (when GPS positioning works normally), vertical: ±0.5m (when GPS positioning works normally). Vertical: ±0.5m (when GPS positioning is working normally). Product Description:1, 450-class BO105 like a real helicopter simulation six-channel RC model, equipped with a 16V high-power motor, simple maintenance; with omni-directional positioning technology H1 flight control, and Beidou positioning system, you can realize the positive flight / inverted flight hovering; intelligent return to join, so that you can automatically return to the point of takeoff when the battery is dead / invisible to the aircraft; in the GPS positioning, the use of 3D aerobatic After GPS positioning, using 3D aerobatic mode, you can cut to GPS mode at any time to save the airplane.2, BO105 adopts the same FBL rotor structure as the four-propeller 700 class, the high-precision FBL rotor structure can make the feel more rounded and heavy, compared with the traditional 450L DFC structure, the addition of the swing hinge makes the flight more stable. The main shaft cross shaft size are also all 470L level, sturdy and durable.3,Customized NACA 8-H-12 wing type flat camber paddle, the gear adopts all-metal large teeth design, with high-strength industrial M3 circular arc teeth drive belt, sturdy and durable, easy maintenance. With torsion spring compression pulley, no tools, can be replaced in one minute with bare hands!4, using 16v higher voltage driven 3508 level brushless motor, phase has more horsepower, higher efficiency. With 32-bit dual-processing 16v 60A all-metal helicopter-specific ESC, the helicopter maintains ultra-fast responsiveness in the intense 3D flight, and the excellent fixed-speed effect allows the entire flight process to maintain a consistent power output, without spinning.5, four flight modes, fly fixed point/reverse fly fixed point/auto route, fly fixed point mode, the new flight control + GPS automatically keep the fixed point hovering without manual correction, ultra-stable, no drift suitable for novice beginners, simple and easy to get started. Auto flight path mode, support one key circle flight path, 8-word flight path. Toggle the switch, the airplane flies by itself, it is a good helper to learn the route flight. Inverted flight fixed point mode, relying on a new generation of omni-directional GPS positioning technology, toggle the switch, the aircraft automatically flipped into inverted flight, inverted flight without manual correction, the gospel of the novice.6, the use of 4S 5000mAh battery, with 16V gold power pack (3508 + 60A helicopter special metal shell ESC), efficiency is greatly improved, 20 + minutes of ultra-long endurance, so you fly once enough! Note: RC model helicopter belongs to the high-risk and dangerous products, flight must be away from the crowd, man-made assembly is improper or unfamiliar with the operation; damage to parts, electronic control equipment, as well as unfamiliarity with the control, may lead to uncontrolled flight damage and other unpredictable accidents, please be sure to pay attention to the safety of the flight, and need to understand the responsibility of any accident caused by negligence. Before each flight, be sure to carefully check the main rotor clamp cross shaft screws, tail rotor clamp screws, as well as all parts of the fuselage ball head, screws, to ensure that the glue locking before ascending to fly. Packing list: fuselage (assembled)*1, hand-built painted one-piece case *1, battery *1, electric display charger *1, remote control *1