8. wind direction is rotated neck axis is a rotation control room, so that the rotor is wind direction by the system tape Thailand connected to have a relationship with tiller was wind direction at the top of the machine.
8. Axis swivel the wind. As a control center rotation So that the wind vane system's electronics. Connecting to a relationship. The helm, the wind at the top of the machine.
8 axle neck moon get wind direction. A spin control engineering. In order to get the wind direction by a rotor system for e-commerce That connect the relationship. With the wind direction rudder to get on top of the machine!