Hi Nico,
glad to see you are still wanting to continue even if very slowly.
Agree about assymetric foils if only one is being used but there are times when both are nice to have. It may be that the extra efficiency may help in dealing with some of the other difficulties. Possibly an assymetric rudder with an ogive leeboard may work well.
I've been thinking further about symetrical fore aft rudders and the problems of balance. If only the aft rudder is being steered with, then the front rudder can simply have a pin to fix it. The pin could have a bit of adjustment but the rudder wouldn't have to have the same ease of movement as the aft one
--- In harryproa@yahoogrou
>
> Hi all,
>
> To present myself :I'm the new owner of one of the first production Hariette... and a long time builder of Harrigami that has no time to work on it.
>
> I'm wondering why we don't use asymetric sections on our rudders in the case we use only 1 rudder. Wouldn't it be more efficient ?
>
> This link on the subject was interesting :
> http://hem.bredband
>
> Kind regards
> --
> Nicolas Vivier
> (also a wooden boatbuilder : www.icarai.fr)
>
Change settings via the Web (Yahoo! ID required)
Change settings via email: Switch delivery to Daily Digest | Switch format to Traditional
Visit Your Group | Yahoo! Groups Terms of Use | Unsubscribe