Re: fg rudder and weatherhelm
Posted by: Douglas
Date: September 22, 2009 07:19AM
Category: Steering and rudder
Hi Jeremy,,, did you notice any difference in the weather helm, between the wooden and F/G rudder ?
I don't always remember where I read the info that I do remember, but I do remember that a sailboat rudder needs to be "neutrally" bouyant.
To me this means the rudder should just barely be able to float in the water, on it's own.
The Foss Foam f/g rudder on Calliste floats like a surf board.
I had a very hard time to replace the rudder on the gudgeons and pentils, when the boat was pontoon berthed.
It took 3 diver weight belts, strapped to the rudder shoe,,, to reduce the bouyancy enough to get it verticle in the water and close to the gudegons,,,, then it took two men over an hour ,to push and coach the rudder into place.
I won't try re-mounting the rudder, when the boat is in the water, again !
With such a bouyant rudder as that, it seems only logical in my mind, that when the boat is healed,,,, the free "trailing edge" of the rudder will try to float up !
Which helm that causes ,,, weather or lee helm, I don't know .
I would think that the wooden rudders are much less bouyant than the foam filled f/g ones .