US Patent 6918294 Vane for measuring wind orientation with integrated heater

Weather vanes (1) are delicate instruments partially exposed to external conditions. They are used in particular in the aeronautical industry. The measurements provided by these weather vanes are crucial to the flying of an aircraft. A type of weather vane is proposed in which a vane can be changed. Changing the vane entails adjusting the orientation sensors (3). To perform this adjustment, use is made of a factory setting rig (16) that allows the various parts of the weather vane to be placed in a characteristic position.