Re: [Paddlewise] Paddles (again)

At 6:57 PM -0400 7/30/02, Michael Daly wrote:
>As I said in a previous post on the topic of paddles, I may or may not
>have been pulling your leg on the direction of lift.  If you looked
>as the diagram of the Greenland-style paddle in a canted stroke as
>seen on Sea Kayaker's web site, is isn't easy to determine the direction
>of lift, especially during the first part of the stroke where the paddle
>is shown going down.
>
>I created a couple of crude diagrams to show what's happening (more or
>less - these diagrams aren't super accurate)
>
>http://members.rogers.com/michaeldaly2/GPFlow.htm
>
>If the paddle is assumed to just drop down (or with a trivial amount
>of aft motion from the paddler), the lift generated will be aftward
>and upward.  The aft component of the lift appears to be working against
>you. 
>
>However, this isn't how the paddle is used.  The paddler will actively
>pull the paddle aft - resulting in the same paddle orientation but with
>the flow changed.  Now the lift is down and forward (diagram 2) - giving
>the paddler something to work against and move the kayak forward.
>

When I have tried the canted stroke with a GP the blade slices into 
the water quickly producing little resistance or force. I think that 
if you have canted the blade enough to produce the flow shown in your 
diagram you will have over canted it.
Nick

-- 
Nick Schade
Guillemot Kayaks
824 Thompson St
Glastonbury, CT 06033
(860) 659-8847
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