In wind turbines with horizontal axis that refer to the HAWT, also called the. rotor and an electric generator at the top of a tall tower located and should be in line with the wind and fall. Small wind turbines to determine the direction of wind blowing from a simple. but the turbine, more usually, from a sensor, the wind that with a in the relationship. they use. Most of these wind turbines, the use of a gear box, the speed of the rotation does blades up to speed, more for generator conversion.