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Another version of wind vane self steering on sail boats is known as the vertical axis vane and usually, because of the inferior steering force output compared to servo pendulum devices it makes use of a trim tab hung off the rudder to control the course of the boat. The vane spins at right angles to the ground and can lock to the trim tab in ...
The first was when part of the frame holding the wind vane self-steering failed, when still 2,300 miles (3,700 km) from Sydney. Not wanting to put in at Fremantle, Western Australia , Chichester spent three days balancing sails and experimenting with shock-cord lines on the tiller, once again getting the boat to hold a course to enable her to ...
A wind vane, weather vane, or weathercock is an instrument used for showing the direction of the wind. It is typically used as an architectural ornament to the highest point of a building. The word vane comes from the Old English word fana, meaning "flag". A cockerel is a traditional figure used as a vane placed on top of the cardinal directions.
An anemoscope is a device designed to show the direction of the wind, or to indicate a change of wind direction . The name is usually applied to an apparatus consisting of a wind vane above, connecting to a building below by some kind of coupling, and with a dial or index with pointers to show the direction and changes of the wind.
On stylistic grounds it has been dated to c. 1050, and scholars believe it was originally made to be used as a weather vane on a Viking ship. [3] [4] Comparisons with other Viking-age vanes and analysis of mentions of such vanes in the Icelandic sagas indicate that a vane of this size and splendour may have been made for a large ship like a ...
Wind-powered vehicles derive their power from sails, kites or rotors and ride on wheels—which may be linked to a wind-powered rotor—or runners. Whether powered by sail, kite or rotor, these vehicles share a common trait: As the vehicle increases in speed, the advancing airfoil encounters an increasing apparent wind at an angle of attack ...