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Old 09-08-2015, 12:47 PM   #13
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City: North Carolina for now
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Join Date: Aug 2011
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A limiting factor may be than many trawlers (but not all) do not have a keel designed for sails. Without ballast down low, sail area may have to be limited to the point where the effect is negligible. At least 30 square feet per ton of displacement is needed to be effective. Some of the Taiwanese trawlers have about half this, and this may have added to the myth that steadying sails don't help much
Great point, makes sense! Thanks!

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