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John Holtrop wrote:
regarding the value of diagonals, they give the designer another set of points, which are useful for evaluating the fairness of the hull, particularly around the turn of the bilge. See http://www.dixdesign.com/lofting1.htm about a third of the way down the page (figure 1) for an example. The body plan (right side center) shows where the diagonals are run, and the diagonals themselves are shown below the waterlines. Generally, diagonals are positioned where the curvature of the hull is significant (often in way of the turn of the bilge). The additional offsets provide more definition where the buttocks and waterlines do not provide enough points to clearly determine hull shape. Note that the diagonals do not all have to have the same origin (as the example shows). dave -- ----- news_bucket e-mail address goes to a blackhole. Sorry. Send e-mail to "respond" at the same domain. |
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lofting canoe tables in to plans | Boat Building |