80/20 75/25 Center of gravity and buoyancy. The more I can keep it that way the more it will resist heeling. Buoyancy along with a light weight craft the beams could be over built and still not effect the the intended use of design.
Assume just one force to prove one point doesn't make sense.
So for your beams , your saying due to having a ww60/40lw displacement and having an unstayed mast your beams can be built lighter than a pacific or atlantic type using the same construction method being engineered for the specific use on each craft.
You want me to pay 500.$ for what?
Todd
--- In harryproa@yahoogroups.com.au, Rob Denney <harryproa@...> wrote:
> I don't understand your final paragraph. Or see what it or the video has to
> do with this discussion. No idea what walla is, nor how it proves that
> buoyancy to leeward of the mast makes a boat more stable, apart from the
> added righting moment from the mast weight. Assuming the force on the sail
> acts horizontally through the coe (and ignoring the rig weight), it makes no
> difference to the force required to fly a hull where the mast is located
> across the boat. Maybe your rig is a greater component of the righting
> moment than it would be on a full size boat? Again, draw a picture (or try
> to unbalance a chair by pushing or pulling it sideways) and this will be
> obvious.