Re: [Paddlewise] Paddling efficiency (was: Rudders)

From: Richard Fawcett <mayberryrf_at_advi.net>
Date: Wed, 01 Apr 1998 22:04:56 -0500
John Winters wrote:

> I don't know that anyone has done much with small blades and a more
> vertical stroke. Always it seems to be small blades on long shafts
> (Greenland) or large blades on short shafts (racing and white water) . This
> is not really a fair comparison. From a purely mechanical standpoint, the
> stroke closer to the boat wastes less energy (less wasted on turning
> moment). From a purely biomechanical  standpoint the more vertical stroke
> promotes more body rotation and use of torso muscles while making best use
> of the arms for maximum push and pull.
>
> It would seem to me that one might get best results using a small blade
> that did not stress muscles an a short paddle with a more upright stroke
> for greatest efficiency.

John, I agree with this analysis. The problem is where do you find such
paddles.  Everything I have seen is short with wide blades, or long with narrow
blades. I can't find any paddles with a short shaft and narrow blades.  Any
suggestions?

Richard Fawcett
Mayberry, NC

> Cheers,
> John Winters
> Redwing Designs
> Specialists in Human Powered Watercraft
> http://home.ican.net/~735769/
>
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Received on Wed Apr 01 1998 - 19:17:19 PST

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