sailboat design ratios
However, with the help of design ratios, you can not only compare and contrast different designs, but get a pretty good idea, sight unseen, as to how a boat is going to perform under sail. the beneteau sense 46 is a typical modern cruising boat, with an sa/d of 19, a ballast ratio of 28 percent and a d/l of 159.. The design ratios sponberg yacht design inc. 3 preface in january 2010, a gentleman in austria (“capt. vimes”) visiting the internet forum boatdesign.net asked a question about the center of flotation and its implications on boat design and performance. i happened to be the first responder to the question, and. Hull design ratios. the next group of numbers can only be provided by the designer (or by your own detailed analysis of the lines). during the design of a boat, the cg can only be derived by a rigorous weight analysis, including knowing the boat's structure, the structural weights, and the weights and centers of gravity of every item on the. 
sailboat design ratios The design ratios. this series of articles appeared on boatdesign.net during january to march 2010 and covered the basic design ratios that are used in naval architecture and small craft design. paramount in this series is my discussion of s number (s#), a way to rate all sailboat performance on a scale of 1 to 10.. For example, my boat, a hunter production boat, rancho relaxo, has a displacement of 17400 pounds (divide by 2.205 if you insist on kilos, but don't try metric conversion on the other ratios because most were developed for imperial measurements) and ballast of 7900 pounds..
