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Setting up twin rudders

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colin brown View Drop Down
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    Posted: 27 Mar 22 at 4:20pm
Hi , can anyone suggest the correct way to set up the twin rudders on my Beneteau 21.7? Should they be parallel tp the centre line of the boat , toed in or toed out. I can not find any information at all. Advice please

Colin UYC   Ouch
Colin Brown
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423zero View Drop Down
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Post Options Post Options   Quote 423zero Quote  Post ReplyReply Direct Link To This Post Posted: 27 Mar 22 at 7:37pm
Twin rudders are not parallel to the boat's centerline !!!!
Looking from aft , they are watching about 3-5 degrees inboard.
That has nothing to do with the Ackermann-effect .
Sailing upwind the leerudder is angled about 5 degrees ( wheather helm).
The windward rudder, more or less parallel to the waterline , MUST have 0 degrees then, otherwise it would generate horizontal lift, heeling the boat much more. Anon, non attributable unfortunately, checked salient facts appears accurate.
Robert
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Wiclif View Drop Down
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Post Options Post Options   Quote Wiclif Quote  Post ReplyReply Direct Link To This Post Posted: 28 Mar 22 at 4:44pm
I was crewing in a catamaran, and the owners way of “tuning”, while sailing,  was to disconnect the adjustable crossbar linking the tillers.  Then adjusting the length so that the crossbar could just drop on.
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