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Old 01-05-2012
sailor50 sailor50 is offline
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It's a mechanical WIND VANE for self steering..

A Windex is an arrow vane to show wind direction and is totally static. Think of the old folks on the homestead with the barn. They look up and say - it's blowing from behind (aft) or over my shoulder (leeward or windward).

An anemometer is an electronic device that measures where the wind is coming from, it's speed, direction, and requires a display unit for you to understand what you are experiencing when the SH hits the boat.
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