Revision as of 06:14, 3 March 2025 edit GreenC bot (talk \| contribs) Bots 3,066,963 edits Rescued 1 archive link; reformat 1 link. Wayback Medic 2.5 per WP:USURPURL and JUDI batch #25ab ← Previous edit		Revision as of 11:28, 4 March 2025 edit undo WikiEditor50 (talk \| contribs) Extended confirmed users 69,282 edits clean up, typo(s) fixed: between 13-16 → between 13 and 16 (2) Tag: AWB Next edit →
Line 791: \| url = http://www.sailingbreezes.com/Sailing_Breezes_Current/Articles/Feb09/Guidelines_for_Good_Mainsail_Shape.htm \| access-date = 2015-08-01}}</ref> For light air (less than 8 knots), the sail is at its fullest with the depth of draft between 13- and 16% of the cord and maximum fullness 50% aft from the luff. For medium air (8-15 knots), the mainsail has minimal twist with a depth of draft set between 11- and 13% of the cord and maximum fullness 45% aft from the luff. *For heavy (greater than15 knots), the sail is flattened and allowed to twist in a manner that dumps lift with a depth of draft set between 9-12% of cord and maximum fullness 45% aft of the luff. Plots by Larsson ''et al'' show that draft is a much more significant factor affecting sail propulsive force than the position of maximum draft.<ref name=Principles>

Forces on sails: Difference between revisions