I have been playing with stats for my designs, trying to get the SA/D and Bruce number up, but it doesn't help me in real life if I have to reef when the wind hits 4 knots <grin>. How do I calculate the location and magnitude of the force on the sail, so that I can determine what wind speeds I need to reef at, or take the sails down altogether? I am willing to ignore the effect of the mast bending and use that as a safety factor.
- Gardner
Pasadena, MD
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