At 11:44 AM 09-04-99 -0700, Philip Torrens wrote: > >Okay, I can't express this in formal technical terms, but I think Ralph may be right (upright?) in feeling that a sponsoned folding boat could be more stable and self-righting than a hardshell of equal chine and beam. (I mostly use hard shells so I'm not biased in favour of folding boats.) >The displacement of a hardshell is essentially static, changing only as the entire boat moves. The sponsons of a folder, in contrast, are squeezed at the bottom as they are pushed deeper into the water, and therefore expand into greater width and stability in the higher parts. ...snipped... I long ago read an article on this very subject, complete with formulas, but it basically said what you so eloquently and succinctly described. Though the reference is long since lost, perhaps the design experts on the list, such as John or Nick, know of it. Regards, Leander overfall_at_ix.netcom.com *************************************************************************** PaddleWise Paddling Mailing List Submissions: paddlewise_at_lists.intelenet.net Subscriptions: paddlewise-request_at_lists.intelenet.net Website: http://www.gasp-seakayak.net/paddlewise/ ***************************************************************************Received on Fri Apr 09 1999 - 16:56:51 PDT
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