Pig Weathervane

Pig weathervane is a appliance which is used to forecast the direction of wind. It is a movable device on which pig shaped metal is mounted and it is attached to any elevated object mostly roof. They are balanced in such a way that half of its weight is on either side of its axis and the areas exposed to air on both sides are unequal. It minimizes the force of wind and cause vane to rotate.

Pig weathervane includes full bodied metal figure with metal spacer balls, solid metal directionals, and roof mount. Popular types of pig weathervanes are copper flying pig weathervane, copper whimsical pig weathervane, copper sulky weathervane, copper pig with fish weathervane etc with 3-D look are available.

Portion of weathervane with larger surface area gives more resistance to wind which causes the vane to take position in such a way that the forward part points in direction of wind. By the help of compass rose we can determine the direction of wind. There are various shapes of wind vane. Most popular shapes are arrows and cocks.

Weathervane must be mounted at least twice the height of nearest obstacle like another building, tree, and any other object so that they can not interfere the true wind direction. For that reason it is mounted on big poles and on the roof of the tall buildings. Orientation of the vane may be communicated to a remote calibrated dial.