Boat Sailing and Racing; containing Practical Instructions for Bending and Setting Sails, Trimming, Steering and Handling Boats under all Circumtances of Wind and Weather; descriptions of some interesting and instructive foreign Rigs also some useful hints on Racing, with a View to Winning (1885)
Fitzgerald, C. C. P. Capt. · Griffin and Co. (Portsmouth) · leaf 17
14 Flatness of Sais. CHAP. ' I. ae ee … In the figure I have represented the sail as being a flat surface, which as a matter of fact it never really is, but it should always be remembered that the nearer a sail can be made to approach to a flat surface the better the boat will work to windward. The most efficient angle with the keel at…
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Internet Archive · Public domain (published before 1931). Free to use for anything.