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From: James Tibensky <jimtibensky_at_hotmail.com>
subject: [Paddlewise] Bad foward sweep results
Date: Mon, 07 Jan 2002 09:59:37 -0600
Peter said: When stationary I can get a forward sweep to move a sea kayak 
about 45 degrees but when moving the forward sweep gives only about 20 
degrees - less on choppy water unless I'm on top of a wave. This compares 
with 90 degrees rotation for a reverse sweep whether moving or stationary.

My reply:  The engineers will tell if I'm correct, but I'm pretty sure that 
a boat moving forward will resist turning, which is why long, skinny 
flatwater racer boats have rudders to turn with.  [forgive the lousy 
grammer, please]  A reverse sweep kills the forward momentum, allowing the 
boat to turn more easily.  My sermon on the forward vs reverse sweep has 
been preached in these pages before, so let me summarize by betting that a 
stationary boat turns better with a forward sweep than a reverse.  Which 
suggests that it is not the sweep that is the problem.

In slalom racing there are three forward sweeps: bow, stern and full.  
Hardly any slalomist uses any but the bow.  It starts at the bow, hence its 
unusual name, and ends at 90 degrees or so to the keel of the boat.  This 
usually allows balance to be maintained pretty easily.  Peter, is your 
balance problem related to the part of the full sweep that takes the paddle 
past your body?

The bow forward sweep is quite strong if the legs are engaged - push the 
feet away from the paddle using your waist muscles.

Good luck

Jim Tibensky

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From: Jennifer Pivovar <kayak_at_headwinds.org>
subject: Re: [Paddlewise] Bad foward sweep results
Date: Mon, 7 Jan 2002 08:39:28 -0800 (PST)
And don't forget the lean.  Heavily onto your paddle
side.  This will get some of that long, straight
turn-resistor out of the water.

I have to comment on Jim's advice on leg engagement. 
Very good, and I generally follow it.  Had a sheepish
moment this fall in strong N/NW winds on a long skinny
lake - got the the south end quickly pushed by the
wind.  Went to turn 180 to port to avoid getting
pushed into the rocky shore.  Sweeping like crazy and
the (usually nimble) boat is resisting my every
attempt, barely coming around.  Leaning and pushing
like nuts on the right side.  Begin cursing.  Remember
that I had actually dropped my usually strapped-up
rudder to keep course in the quartering wind without
constant correction.  Relax and push on the LEFT foot.
 Voila!  Boat turns!

I just know there's a moral to this story but I won't
fan the flames of Rudder v. Not.  Let me just say that
it is easier to turn a QCC 600 AGAINST its rudder that
it is to turn some other boats I have paddled
normally. And it may be a great way to practice strong
sweeps :).

Jennifer


--- James Tibensky <jimtibensky_at_hotmail.com> wrote:
> Peter said: When stationary I can get a forward
> sweep to move a sea kayak 
> about 45 degrees but when moving the forward sweep
> gives only about 20 
> degrees - less on choppy water unless I'm on top of
> a wave. This compares 
> with 90 degrees rotation for a reverse sweep whether
> moving or stationary.
> 
> My reply:  The engineers will tell if I'm correct,
> but I'm pretty sure that 
> a boat moving forward will resist turning, which is
> why long, skinny 
> flatwater racer boats have rudders to turn with. 
> [forgive the lousy 
> grammer, please]  A reverse sweep kills the forward
> momentum, allowing the 
> boat to turn more easily.  My sermon on the forward
> vs reverse sweep has 
> been preached in these pages before, so let me
> summarize by betting that a 
> stationary boat turns better with a forward sweep
> than a reverse.  Which 
> suggests that it is not the sweep that is the
> problem.
> 
> In slalom racing there are three forward sweeps:
> bow, stern and full.  
> Hardly any slalomist uses any but the bow.  It
> starts at the bow, hence its 
> unusual name, and ends at 90 degrees or so to the
> keel of the boat.  This 
> usually allows balance to be maintained pretty
> easily.  Peter, is your 
> balance problem related to the part of the full
> sweep that takes the paddle 
> past your body?
> 
> The bow forward sweep is quite strong if the legs
> are engaged - push the 
> feet away from the paddle using your waist muscles.
> 
> Good luck
> 
> Jim Tibensky



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