Wind turbine nacelles (generator housings) are mounted on turntables. An anemometer and wind vane on top each nacelle continuously gathers wind velocity and direction data and sends it to a computer. The computer then "aims" the nacelle via a motor geared to the turntable based on the wind data.
You can see the wind data instrumentation to the left of the red anticollision beacon in this photo. (Turbine is one of 18 General Electric 1.5 megawatt units at the Fenner, NY wind farm)
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Today's Featured Article - A Lifetime of Farm Machinery - by Joe Michaels. I am a mechanical engineer by profession, specializing in powerplant work. I worked as a machinist and engine erector, with time spent overseas. I have always had a love for machinery, and an appreciation for farming and farm machinery. I was born and raised in Brooklyn, New York. Not a place one would associate with farms or farm machinery. I credit my parents for instilling a lot of good values, a respect for learning, a knowledge of various skills and a little knowledge of farming in me, amo
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