Re: [Paddlewise] Rudders

From: Dave Kruger <dkruger_at_seasurf.com>
Date: Sun, 29 Mar 1998 18:43:36 -0800
Andy Knapp wrote:
> 
> To pipe in with my  experience with rudders:
[snip] 
> Before a long trip two years ago, I did a series of time trials, including
> rudder tests, on a measured course on a lake with an impellor-driven knot
> meter. Kayak empty, kayak loaded with 150 lbs. of bricks, rudder up, rudder
> down, etc., and came up with about a 2% rudder drag factor, or about 0.1
> mph slower at 5 mph. (Eddyline Sea Star, 18', 22")
> 
> This drag factor, in my opinion, is overshadowed by the effort that is
> otherwise expended steering the kayak in some types of rough water.[snip]
> 
> In rough water, a rudder under load, would probably exert more than the "2%
> baseline" of drag, but still takes some of the load off your arms and
> shoulders and allows a steadier cadence. Perhaps a skeg would be a
> practical compromise. These are just tools to do the job, like a GPS unit
> or a butane lighter. [snip]

Andy:  great post -- good to have you chime in with some extensive
on-the-water experience -- agree with your approach to the rudder/no
rudder religious debate.  I think Winskill gave me his headache, though.

All:  been an illuminating set of posts to read after two afternoons on
a salty body of water with 10 - 15 knots of LF quarter/RR quarter
winds.  Used my rudder part of the time and part not.  Had a good time
either way.  Clear, cold night, brant all over the bay, loons calling at
midnight, and a double pocketful of agates on the beach for the morning
walk.  That's a short summary of why I need/don't need a rudder.

-- 
Dave Kruger
Astoria, OR
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Received on Sun Mar 29 1998 - 18:37:43 PST

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