Rick,
Does this mean that a hull with shallow keel could be as effective as
a hull with ventilating rudders?
That would make a shallow keel a good alternative.
Rudolf
--- In harryproa@yahoogroups.com.au, Rick Willoughby <rickwill@...> wrote:
>
> Rudolf
> There is performance merit in resisting leeway with a non-
> ventillating foil or foils. Once this is achieved it does not matter
> much how the boat is steered unless the rig is poorly balanced. I am
> now thinking dipping rudders a little more sophisticated than what
> Tarawa is using would be my starting point.
>
> The other conclusion is that a slab sided or very deep V (> 45
> degrees) hull will be as effective at resisting leeway as ventilating
> rudders. So a reasonably elegant solution is exactly what Tarawa has
> in concept. It could be engineered with a bit more precision.
>
> Rick
>
> >
> >
> >