I can accept that potential energy contributes to the stroke, but are you saying it's the prime mover? I wish I was on the water right now to give it a test. It seems even at 2kts, there has to be some more energy involved. Mark Sanders On 4/28/2011 1:34 PM, Niels Blaauw wrote: >> But I suspect the amount of energy referred to is small. I doubt you >> could get a kayak to move forward by just using the potential energy >> stored by the effort of lifting the paddle up. Even on a completely calm >> day. > > You must have missed my calculations. In my own stroke, analyzed in my > own video, I put close to 30 watts into lifting the paddle, while 30 > watts drive a kayak at a speed of 2 kts. > There will be losses, but still: 30 watts is a significant amount of > power. *************************************************************************** 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 Thu Apr 28 2011 - 14:11:46 PDT
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