Chuck wrote: >>I believe (without tank tests or calculations, Mr. Winters) that it is the double-convex section of this blade that gives the blade so much lift when it is swept or sculled, and even for the forward stroke, if you use the right technique. Certainly it is much easier to scull with than a Euro-style paddle, because it has a less critical blade angle. Unfortunately, I have not stressed this enough in my instructions on how to make one, and I have seen more than one homemade Greenland paddle with blades that were too thin, too flat, or had squared-off edges.<< While rounding the edges to make a better foil should decrease the flutter and increase the stall angle of a narrow blade a high aspect ratio foil has a much shallower stall angle than a wider (low aspect ratio) foil. The sculling angle is more critical on the narrower paddle but a thicker cord and rounded leading edge can widen the range of sculling angles for either paddle. True spoons are about the least forgiving, but a narrow paddle with a concave power face should be even worse. >>Where they meet in the West Greenland paddle is a shoulder where the loom abruptly widens into the root of the blade (what would be called the throat area on a Euro paddle). In use, the thumb and forefinger grasp the loom at the shoulder, while the last three fingers grasp the root of the blade. This allows a very secure grip on the paddle, while at the same time it gives an almost instictive feel for the orientation of the blade, which is very important when rolling or bracing. Also, the shoulder works as a built-in index point for hand placement.<< But Chuck, if your fingers are on the blade then where do the drip rings go! Matt Broze (a kayaking wuss, who if offered the choice between drip rings or pogies--but not both--would choose the drip rings) http://www.marinerkayaks.com *************************************************************************** PaddleWise Paddling Mailing List - All postings copyright the author and not to be reproduced outside PaddleWise without author's permission Submissions: paddlewise_at_lists.intelenet.net Subscriptions: paddlewise-request_at_lists.intelenet.net Website: http://www.paddlewise.net/ ***************************************************************************Received on Tue Jun 06 2000 - 22:03:51 PDT
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