Re: [Paddlewise] Jet Ski Buddies

From: ralph diaz <rdiaz_at_ix.netcom.com>
Date: Sat, 26 Feb 2000 09:34:30 -0800
Arthur Hebert wrote:
> 
> This summer I have three friends with jet skies that will enhance my safety.
> I question my abilities during certain conditions when being propelled across
> the water with a kite.  Several test will be preformed with the jet ski on
> standby in the event a rescue is needed.  I will use three different kites a
> 7.5 SF, 15 SF, and a 16 SF during different test.   The test will be preformed
> using each kite at different times in different wind and sea conditions.
> While flying the kite with the kayak in tow I will capsize and allow myself to
> be drug by the kite.  I will not be tethered to the kayak.  Hopefully I will
> roll back up.....  If the roll fails I will exit the boat.  The jet skies will
> go fetch my boat that is still being pulled by the kite.  During another test
> I will try being tethered to the kayak, capsize and then exit the boat.
> Curious to how much drag my body in the water will produce.  Will it slow the
> kayak down enough to retrieve the kite while I am still in the water?  Note;
> Between the tether and PFD used there's three points to detach in case of
> danger. 

Look's like a useful experiment under controlled conditions.  Jet
skiiers are often bored just jumping boat wakes and chasing down a
runaway kite propelled kayak will give them something to do.  

A technical point.  I don't see that you mentioned to where you attach
the boat end of the kite cord.  I ask because the tie-off point makes a
big difference in the potential tipping forces you might get from a
kite. Take single kayaks.  Normally in a hardshell one you tie off on
the deck cleat or ring in front of  the cockpit.  So you get a certain
amount of torque at some angles of kiting in which the kite may want to
flip your boat.  In a folding kayak single, especially ones with the
open cockpit setup like Folbot and Klepper, kite sailors tie off to the
keelboard or keelbar.  This tie-off point is so low (actually below the
waterline) that the torque that may be trying to turn you over is
virtually negligible.  You may capsize for other reasons of your own,
but not because the kite pulled you over.

Another experiment you may want to try with jet ski buddies is to have
them tow you boat with you in it.  I am not really certain what is the
best way to do this and would like to see some experimenting done.  Here
in NYC we have a round Manhattan swim with kayak escorts.  The way the
race is run, invariably many of the kayakers are caught in a situation
where they face 3 knot currents against them to get back to the takeout,
and this after having paddled 30 miles.  Motorboat escorts have
attempted to tow the paddlers back and in most cases the kayakers being
towed dump.

I suspect that some pattern of towing would eliminate this unfortunate
development but I don't know what.  One would be for the kayaks to raft
up in twos and threes and make certain the motorboat doesn't go too
fast. To my knowledge the swim escort kayaks have not done that.

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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Received on Sat Feb 26 2000 - 06:37:57 PST

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