At 4:31 PM -0500 5/11/01, James Tibensky wrote: >If a blade didn't slip in the water when paddling a kayak, there >wouldn't be any cavitation, would there?? And there would be no >need to dig deep. You mean "ventilation" not "cavitation". Cavitation is when an object is moving so fast through the water that the water can not move around it fast enough so a bubble of vacuum is produced on the trailing edge. This vacuum will eventually eat away at the object. Ventilation seems similar, but it is a result of air being sucked down from the surface, where cavitation happens without contact with the surface. Ventilation can be reduced or eliminated by completely submerging the blade because the round shape of the shaft does not produce a good path for air to travel down to the blade. -- 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 Mon May 14 2001 - 06:10:10 PDT
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