[Paddlewise] Content-Type: text/plain; charset="us-ascii" ; format="flowed" Sender: owner-paddlewise_at_paddlewise.net Precedence: list X-Listname: Paddlewise Mailing List X-Subscription-Info: paddlewise-request_at_paddlewise.net >Nick wrote about planing: >>>>>>I like the definition where the boat lifts up and drag is reduced. If >a long boat can do this a low speed or a short boat can do this with >an external power source, so be it. Of course since I am not the >arbiter of the English language I guess it is not my call.<<<<<< > >I like the lifts up part (which is Savitsky's definition) but drag is not >reduced when planning. Only its rate of increase with increasing speed is >reduced. Or am I misusing the term drag to mean all the energy required to >over come all the "drag" forces including gravity and you are referring to >only frictional drag? > OK, I'll accept that, at least as a practical matter. I do think the drag can reduced theoretically, but don't know that it happens in actuality. Seems to me the when I've waterskied that the tug on the rope went down between the time when my body is out of the water, but the ski is still deep, and the time when I am up and really going along. Both situations strike me as "planing" but the latter seems to have much less drag. Couldn't the same happen is a kayak, on surf? Nick -- Nick Schade Guillemot Kayaks 824 Thompson St Glastonbury, CT 06033 (860) 659-8847 *************************************************************************** PaddleWise Paddling Mailing List - Any opinions or suggestions expressed here are solely those of the writer(s). You must assume the entire responsibility for reliance upon them. All postings copyright the author. Submissions: PaddleWise_at_PaddleWise.net Subscriptions: PaddleWise-request_at_PaddleWise.net Website: http://www.paddlewise.net/ ***************************************************************************Received on Sat Jan 19 2002 - 07:59:07 PST
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