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.
