The various components of the modern active yaw systems vary depending on the design characteristics but all the active yaw systems include a means of rotatable connection between nacelle and tower (yaw bearing), a means of active variation of the rotor orientation (i.e. yaw drive), a means of restricting the rotation of the nacelle (yaw brake) and a control system which processes the signals from wind direction sensors (e.g. wind vanes) and gives the proper
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Moulton also has a fine church, St. Peter's, with an early 14th-century tower topped by a gilded weather vane in the shape of a large pike by blacksmith Charles Poulter.
Jonathan Dimbleby described him as a "weather vane" in his book The Last Governor.
The College Green features Galbreath Chapel, the spire of which, topped with a brass weather vane, is modeled after that of the portico of Nash's All Souls Church in London.
A Smurf asks Papa Smurf who gave him the magic weather vane, and he answers it was a certain Aeolus.