The snow was blowing around during stronger gusts of winds today. Old windmills, like this one, will “furl” in high winds which prevent a turbine from spinning too quickly by turning the blades out of the wind. This Aermotor windmill uses an adjustable spring to select the speed point at which to furl the windmill out of the wind and to return the windmill into the wind as the wind speed decreases. It can be manually turned out of the wind also as this one might be.
Furled Windmill
