My "improper" experience with sails are when they stall because they are perpendicular to the wind they do not heal the boat as much as when the sail is acting as an airfoil.
I agree that this is counterintuitive but proven empirically to me.
Is there an aerodynamic explanation of this observation?
johninbastrop
--- In harryproa@yahoogrou
>
> Thanks for the PDF file link. I had not seen that file before. I think I
> miss a bunch of stuff that gets into the files area by not checking it often
> enough.
> I do remember seeing todd's videos and he made a good case by actually
> sitting the model with the dynarig facing the wind and it just floated
> downwind. Seeing that, I think I question the "max heeling moment" portion
> of the PDF. It might be that just because the max sail area is exposed to
> the wind, that it is not the maxd heeling moment. I know that if you are on
> a monohull, you heel over alot more on a close reach than you do on a broad
> reach, even if you sheet the sails in flat. Because you lose the airflow
> around the sails, the boat pops upright again.
>
> I do, however, agree on the complexity issue. I expect that I will end up
> with an easyrig, unless I need the sail area provided by a schooner rig. I
> just keep hoping that someone will hop in here saying "I have been using the
> dynarig on my boat for 3 years and it is really simple because of ... "
> <grin>
>
> - Gardner
>
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