I am not dismissing the Proa, but those Marstom M32's look like seriously fast boats in light air, and like rocket ships in medium air. I would like to see them race Proa's on a reach in medium air ^^
About the gennaker yes it would produce a lot more force on the base of the mast because of the moment arm, more than twice what a main sail produces and it might generate compression forces too, all of which would require a stronger stiffer (heavier) mast.
A rotating wing mast is about 30% or more efficient (on most points of sail) than a non rotating mast or a gennacker. If the Proa can go fast enough to sail down wind and bring the apparent wind around, it becomes a way better sail than the gennacker. It would blow the M32's away, big IF though.
Talador
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Posted by: taladorwood@yahoo.com.au
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