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Old 7th July 2010, 12:03 AM   #3
Farlo
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Join Date: Aug 2006
Posts: 528
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Hi Chris, unless your sail is very old fashioned it has not a triangle shape and there is much surface outside. Based on my own sails collection I would suggest a x1.4 factor so ~6.2 mē. This been said 4.11 sounds very compact for a 2.13 boom. I have a 7.3 mē sail with same boom length and 4.86 mast luff. What type of sail is yours?
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