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From: PeterO <rebyl_kayak_at_iprimus.com.au>
subject: [Paddlewise] Clapotis technique
Date: Mon, 4 Feb 2002 21:39:22 +1100
G'Day,

I'm after advice (again!) please!

At the moment I move from strong forward paddling strokes in "organised"
waves to short and more rapid shallow angle strokes when in clapotis of
about the same height (1-1.5meters). This makes me feel like a wimp but also
seems to work. The technique doesn't seem right. Is there a better way?

All the best, PeterO

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From: Alder Creek Kayak & Canoe <aldercreek_at_qwest.net>
subject: Re: [Paddlewise] Clapotis technique
Date: Mon, 4 Feb 2002 08:16:54 -0800
Peter O writes:

>>This makes me feel like a wimp but also
seems to work. The technique doesn't seem right. Is there a better way?

Why doesn't it seem right, but seems to work??

In mixed conditions a shorter stroke with a shallow shaft angle can work
just fine.  there's less time for the mixed water to catch a blade if it's
short and shallow and with a higher RPM you can get the same amount of speed
as with a long, deep stroke. This is a standard of Greenland technique.

The shorter, shallow stroke can also be converted into a brace or supportive
stroke more easily than a deep, long stroke, perfect for mixed conditions.

Don't fix what ain't broke.

Hope this helps.

Steve
Alder Creek Kayak & Canoe    N   45º 39' 47"
250 NE Tomahawk Isle Dr.     W 122º 36' 16"
Portland, OR  97217          Web: www.aldercreek.com
Phone: 503.285.0464        Email: aldercreek_at_qwest.net


----- Original Message -----
From: "PeterO" <rebyl_kayak_at_iprimus.com.au>
To: "'Paddlewise'" <Paddlewise_at_paddlewise.net>
Sent: Monday, February 04, 2002 2:39 AM
Subject: [Paddlewise] Clapotis technique


> G'Day,
>
> I'm after advice (again!) please!
>
> At the moment I move from strong forward paddling strokes in "organised"
> waves to short and more rapid shallow angle strokes when in clapotis of
> about the same height (1-1.5meters). This makes me feel like a wimp but
also
> seems to work. The technique doesn't seem right. Is there a better way?
>
> All the best, PeterO
>
>
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> here are solely those of the writer(s). You must assume the entire
> responsibility for reliance upon them. All postings copyright the author.
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>
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>
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From: PeterO <rebyl_kayak_at_iprimus.com.au>
subject: RE: [Paddlewise] Clapotis technique
Date: Tue, 5 Feb 2002 21:39:16 +1100
Heike wrote: -
>What is Clapotis

G'Day Heike and thanks Doug, Steve, Kevin and Robert for your encouragement
and advice,

Heike, clapotis is a word used to describe waves that seems to leap up from
nowhere. Its caused when reflected waves eg from a cliff, or point meet
waves travelling to the cliff or point. Sometimes the reflected wave will be
going down while the oncoming wave is going up and the two cancel each other
out. Sometimes both waves will be going up at the same time and they add
together giving a bigger one that seems to come from nowhere. The
combination of waves from either side and waves jumping up typically 3 or 4
feet (1-1.5 meters) is what I have experienced. They can be much bigger but
I haven't experienced that yet.

I come across them regularly when rounding a point as a Jet Cat Ferry gos by
or along the stretch of coast from North Head in Sydney to Blue Fish Point.
This stretch takes about 15 to 30 minutes to cross which is plenty of time
to get used to the conditions. My Pittarak hardshell is fairly narrow and
tippy and balances really well in confused water with flexible hips. The
beamy Klepper is very good also. Theres an ancient "disused" treated sewage
outfall at Blue Fish point so I really want to paddle at my best in that
locality:~)

I sometimes get trapped in these waves, not being able to go forward very
fast and being knocked way off direction as Doug described, just maintaining
balance. As Robert said the boat is quite often knocked back into the right
direction anyway. The fast shallow angle strokes work like Steve said except
that its not as fast for me and its reassuring to know that its not bad
paddling technique. There are also periods of calm in between the chaos when
I paddle more "normally" in the right direction and with a lot of energy to
build up forward momentum until the next chaotic run. These calm periods
seem to last a few seconds. When all this is happening I'm just focussing on
the immediate surroundings and it requires concentration. Its not an easy
place for rescues.

Robert and Kevin both mentioned relaxing and Kevin also suggested not
paddling just sitting maybe eyes shut. While I'm not exactly relaxed I've
certainly tried just sitting (out of laziness and exasperation) and its as
you say Kevin there doesn't seem to be a major problem with balance though I
do have to low brace sometimes. Trouble is the stretch of water I'm thinking
of takes about 20 minutes to cross at the best of times. My objective is to
make efficient progress I think the balance is OK. As Doug suggested I will
try a deeper angle stroke while being prepared to brace more often, as well
as optimising the shallow angle stroke (nice to know its a Greenland
technique). Sitting without paddling and your eyes closed sound like a
useful challenges best done with a friend in carefully selected water.

Looking forward to learning more through trial and hopefully not too many
errors and heeding the voices of experience,

All the best and thanks again, PeterO



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From: ralph diaz <rdiaz_at_ix.netcom.com>
subject: Re: [Paddlewise] Clapotis technique
Date: Tue, 5 Feb 2002 10:03:55 -0500
----- Original Message -----
From: "PeterO" <rebyl_kayak_at_iprimus.com.au>
To: "'Paddlewise'" <Paddlewise_at_paddlewise.net>
Sent: Tuesday, February 05, 2002 5:39 AM
Subject: RE: [Paddlewise] Clapotis technique
>
> I come across them regularly when rounding a point as a Jet Cat Ferry gos
by
> or along the stretch of coast from North Head in Sydney to Blue Fish
Point.
> This stretch takes about 15 to 30 minutes to cross which is plenty of time
> to get used to the conditions. My Pittarak hardshell is fairly narrow and
> tippy and balances really well in confused water with flexible hips. The
> beamy Klepper is very good also.

Clapotis is pretty much what you see paddling in New York Harbor on many
days especially at the south end of the Hudson where it meets the Upper Bay.
Reasons should be obvious:  --Lots of ferries and other commercial and
recreational traffic scurrying around in no particular pattern sending off
wakes in every which direction.
--Hard sided edges of unyielding seawalls that reflect back all that already
confused wake action to add even more forces to the confusion of waters.
--A natural tendency for the water to stack up in the area as a result of
ocean flood currents driving northward against a river's southward current
and the phenomenon of water coming from a wider body (the Upper Bay) to a
more narrow body (the river).

It sometimes can rock you pretty badly.  I have seen clashing waves spout up
3 or more feet when they hit each other.  Also findiing oneself deep down in
the trough of the wave action and not being able to see above the confused
waves around you for what traffic may be doing.  However, such extremes are
not that usual but they do occur often enough.  It is great training for
learning how to be calm and for letting your boat do its thing under you.
One way to deal with is to paddle under lots of power because a boat in
motion at speed offers quite a stable platform.  But you also need to at
times do nothing and let the forces do their thing.  Do a little of both
(lay off and power) in clapotis is probably the best technique.

ralph diaz--
-----------------------------------------------------------------------
Ralph Diaz . . . Folding Kayaker newsletter
PO Box 0754, New York, NY 10024
Tel: 212-724-5069; E-mail: rdiaz_at_ix.netcom.com
"Where's your sea kayak?"----"It's in the bag."
-----------------------------------------------------------------------




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From: Steven A. Holtzman <sh_at_actglobal.net>
subject: Re: [Paddlewise] Clapotis technique
Date: Tue, 5 Feb 2002 07:59:03 -0800
Ralph Diaz said:
One way to deal with is to paddle under lots of power because a boat in
motion at speed offers quite a stable platform.  But you also need to at
times do nothing and let the forces do their thing.  Do a little of both
(lay off and power) in clapotis is probably the best technique.

I like Ralph's technique better than the one I first learned--keep paddling
but put your head between your knees and kiss your butt goodbye.

Seriously though, a great training technique that a friend of mine taught me
was to go out in some very rough, confused seas on a windy day. We usually
do this just outside of a breakwater so that we can get some good reflection
waves coming off of it.

Stop paddling, and wait for the wind and water to start turning your boat.
Then continue this turn by using only a very easy reverse sweep. The goal is
to do a 360 degree turn in about 10 minutes. This will have the wind and
waves hitting you from all sides. After you have completed a turn, try it in
the other direction.

It is a great confidence builder and really helps your skills. Of course,
only do this with a partner and in conditions that will allow for a safe
re-entry/rescue if necessary.

Steve Holtzman


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