Re: [Paddlewise] PaddleWise [wing theory]

From: Michael Daly <michaeldaly_at_rogers.com>
Date: Wed, 11 Jun 2003 14:28:17 -0400
On 11 Jun 2003 at 10:57, Rcgibbert_at_aol.com wrote:

> Then I have a question: When one slices the paddle verically down a
> few inches into the water, absolutley perpendicular to the boat, then
> flatten the blade so that the entire width of the blade is popped
> upwards, one will get forward motion. Is that not lift generating
> forward motion?

If I understand your description, yes, that is correct.  However, 
you're considering a special case, as it were, and not an entire 
Greenland stroke.  Nick was considering the entire stroke, where, for 
a considerable portion of the stroke, the blade is oriented in such a 
way as to prevent the lift vector from pointing forward (as it would 
in a wing paddle).

The lift on the blade does exist and generates a force, but it 
_indirectly_ contributes to the forward motion.  With a wing paddle, 
the lift force is directed forward and thus contributes directly to 
forward motion.

Mike

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Received on Wed Jun 11 2003 - 11:24:03 PDT

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