RE: [Paddlewise] Did Hobie Cat sucker punch top racers?

From: PeterO <rebyl_kayak_at_iprimus.com.au>
Date: Sun, 29 Aug 2004 17:51:55 +1000
Matt wrote: -
>I also suspect that a paddle (and maybe a wing
>paddle even more so) is at a disadvantage when
>the kayak can't move forward during the stroke.

G'Day,

I'm trying to understand if there is a transient increase in drag when a
hull or a paddle goes from stationary to forward movement or from reverse to
forward movement. I'm told back channel that boundary layer effects on a
hull would not cause a transient increase in drag under these circumstances,
(thanks Matt). Is it known whether something analogous to stiction in solids
occurs when a hull or paddle starts to move through water or reverse its
movement in water? Perhaps a transient increase in turbulence at the bow or
stern or at the edges of the paddle?

All the best, PeterO
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Received on Sun Aug 29 2004 - 00:54:12 PDT

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