On 10 Jun 2003 at 7:04, Steve Brown wrote: Lots of interestng and useful comparisons, Steve. > -A paddle is used like a wing used at high angle of attack, making it > susceptible to stall (cavitation in water world). Stalling a wing > results in a dramatic reduction of lift. In our case that is a > dramatic reduction in propulsive force Nit to pick - cavitation is not possible for us weaklings. True cavitation results from a pressure drop across the paddle on the order of one atmosphere. Even over a small area, that would translate into a big force. The correct term is "ventilation" - it's basically air drawn down by the paddle from the surface of the water. If deep enough, the blade will stall without any venilation. Mike *************************************************************************** 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 Tue Jun 10 2003 - 08:18:42 PDT
This archive was generated by hypermail 2.4.0 : Thu Aug 21 2025 - 16:31:07 PDT