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From: John Winters <jdwinters_at_eastlink.ca>
subject: Re: [Paddlewise] Tank Tests
Date: Mon, 13 Sep 2004 19:49:12 -0300
Matt wrote:

> I too have questions concerning the suitability of a tank of standing 
> water
> for adequately representing a paddle stroke in a moving kayak.

Why does it have to be standing water? Why couldn't you use the kind of tank 
sprint paddlers sometimes train in with flowing water?

> Possibly if
> the tank is big enough so that the paddle and the water flow and vortexes
> coming from the paddle aren't being effected by the sides and bottom (or
> ends) of the tank a simulation could be done if the paddle is only moved
> with the same force it is under during a normal paddle stroke rather than
> the hard strokes during a fast acceleration that a paddler next to a tank 
> is
> likely to actually simulate.


Why does the paddle have to be next to the tank? Why not in the center of 
the tank? Since all tank testing needs to have tank large enough to 
eliminate sidewall interference is there any reason why thae same can't 
apply to paddle testing tanks?


> Maybe you could mount the paddler (or mechanical paddle machine) on tracks 
> with adjustable
> drag and have it move as the paddle is worked in the trough.

Exactly what Jackson did although he did not use a paddler, he simulated the 
stroke mechanically. Any reason why that wouldn't work?

Cheers

John Winters 
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