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post #29 of Old 07-04-2013
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Re: Is external rudder a good idea?

Originally Posted by Mechsmith View Post
Weather helm is a function of how the rudder is hung. If the extended line through the center of the hinges goes through the effective center of of the rudder there will be no weather helm.
This statement is just wrong. No recognition of the how the center of effort of the sails, keel area, etc. affects weather helm. It has almost nothing to do with the relationship between the center of the rudder area and the hinge location.
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