[quote=MN3][quote]In very light air, like under 6 mph, the theory is that the flatter shape "holds" the flow on the outside of the sail all the way to the leach. With a big curve in super light air the flow breaks off at the peak of the curve.
Phil Berman made the point in "Catamaran Sailing From Start to Finish" on page 140.[/quote]
I still have outhaul, downhaul, & mainsheet controlling the shape of my sail, i am talking about micro tuning with slight changes in batten pressure...
also .. i sail a modern sail plan and more modern mast than Phil wrote about[/quote]
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