Wharram Builders and Friends

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First tests of Wilson the windvane.

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Comment by Robert Hughes on September 10, 2021 at 9:11am

Is Wilson based on what you used on Cookie?

Comment by Rory on September 12, 2021 at 3:00pm

No I used a Bill Belcher OGM mkII design for Cookie with a large area of vane straight to the tillers. Wilson is based on the wharram plans for their trim tab self steering. I scaled down some of the dimensions that I figured would be adequate for the Tiki 30 size. It works very well. I have found it needs limiting strings attached to the tillers (seen in the pic above) to stop the weight of the tillers from giving too much helm in light conditions. All good fun tinkering and making your vane and boat talk to each other efficiently!

Comment by Robert Hughes on September 12, 2021 at 3:33pm

Thanks Rory, interesting exercise !

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