Re: [Paddlewise] She needed a rudder

From: Gabriel L Romeu <romeug_at_erols.com>
Date: Wed, 26 Sep 2001 01:33:20 -0400
Hi Kevin,
I feel a bit out of place breaking in here as I have never used a
rudder, but will you be reducing the waterline length edging the boat in
effect equaling the additional effort of the drag from a well adjusted
rudder (which I speculate may add to waterline length)?

Nobody has mentioned the extra fun of paddling a boat without deploying
a skeg or a rudder in adverse conditions- it's more like riding instead
of driving.  I have sometimes found that efficiency is a suitable
sacrifice for developing and experimenting with integrating corrective
with propulsive strokes (play)- especially with a slow group or if I am
not in a hurry. 

gabriel




gabriel

Kevin Whilden wrote:
> 
> On Tue, 25 Sep 2001, Craig MacKinnon wrote:
> 
> >
> > A better argument for the Devil's Advocate: rudders can increase forward
> > paddling efficiency under certain conditions for many kayak designs,
> > allowing one to work smarter rather than harder by devoting more energy to
> > forward strokes versus corrective strokes--something paddlers of all skill
> > and fitness levels appreciate.
> >
> > Craig
> >
> 
> I actually disagree with that rudders always increase forward paddling
> efficiency. I control my boat's direction with slight edging, not
> corrective strokes, and thus a rudder would only add drag. I have heard
> that rudders can add up to 20% drag, but that is only hearsay. Perhaps
> Matt Broze has some definite numbers. However I have definitely noticed
> drag from rudders in boats I have tested, and also on skegs for that
> matter. I still think that if the boat is balanced and well behaved, then
> an expert paddler would not gain much benefit from the rudder, and this
> might even be offset by the drag.
> 
> Kevin
> 
>**************************

-- 
¤   Gabriel L Romeu  
¤                                                    
http://studiofurniture.com    +   /diary   or  +   /paint
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Received on Tue Sep 25 2001 - 22:28:43 PDT

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