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From: Robert C. Cline <rcline_at_onramp.net>
subject: [Paddlewise] St. Elmo's Fire ---> Lightening
Date: Mon, 4 May 1998 20:43:35 -0500 (CDT)
I've been in boats during really severe lighting storms but never a
Kayak... one lighting bolt striking within 50 FEET of my (sail) boat.  The
sea "lit up" but we didn't feel a thing except fear. My dad, who had
arthritis at the time, didn't have another bout of arthritis for 20 years.
He is 87 now and says he thinks he needs "another treatment."

I Heard about one guy getting struck while sitting on the fantail of a
steel hull boat when lightening struck him.  It blew a hole in the boat and
burned his bottom badly, but he survived.

If you are paddling and your boat begins to glow... you are in trouble.

Robert


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From: Bob Denton <gulfstream_at_flinet.com>
subject: Re: [Paddlewise] St. Elmo's Fire ---> Lightening
Date: Tue, 5 May 1998 05:14:07 -5
I woner if Carbon Fiber is a positive or negative feature (no pun 
intended) in a lightning storm.
> 
> If you are paddling and your boat begins to glow... you are in trouble.
> 
> Robert
Bob Denton
President
Gulf Stream International
Sink the Stink - The Water Sports Deodorizer That Works!
Boynton Beach, FL
http://www.flinet.com/gulfstream/scuba.html
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From: Dave Kruger <dkruger_at_seasurf.com>
subject: Re: [Paddlewise] St. Elmo's Fire ---> Lightening
Date: Tue, 05 May 1998 03:03:27 -0700
Bob Denton wrote:
> 
> I wonder if Carbon Fiber is a positive or negative feature (no pun
> intended) in a lightning storm.

Probably not a significantly better conductor than a wet (with water)
glass/epoxy shaft, but I don't know the specific conductance of a carbon
fiber/epoxy laminate.  Maybe that "Lightning!" paddle guy will know --
he makes 'em, after all!

-- 
Dave Kruger
Astoria, OR
sea kayaker -- and chemist
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From: James Lofton <n5yyx_at_etsc.net>
subject: Re: [Paddlewise] St. Elmo's Fire ---> Lightening
Date: Tue, 05 May 1998 07:10:36 -0700
Bob Denton wrote:
> 
> I woner if Carbon Fiber is a positive or negative feature (no pun
> intended) in a lightning storm.
> >
> > If you are paddling and your boat begins to glow... you are in trouble.
> >
> > Robert
> Bob Denton
>

I'm not sure how the carbon compares to the carbon fibre used in sport 
kite tubing but I know that it is very conductive.

James


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From: Hank Hays <lhays_at_canby.com>
subject: Re: [Paddlewise] St. Elmo's Fire ---> Lightening
Date: Tue, 05 May 1998 08:03:38 -0700
Bob, Dave, et.al.,

>>Bob Denton wrote:
>> 
>> I wonder if Carbon Fiber is a positive or negative feature (no pun
>> intended) in a lightning storm.
>
>Dave Kruger wrote:
>
>Probably not a significantly better conductor than a wet (with water)
>glass/epoxy shaft, but I don't know the specific conductance of a carbon
>fiber/epoxy laminate.  Maybe that "Lightning!" paddle guy will know --
>he makes 'em, after all!

Carbon in graphite form will conduct electricity.  Not as well as aluminum,
but better than fiberglass.  I did some testing with an ohm meter years
back to see, after I'd heard from one of my specialty suppliers that they
quit selling graphite for composite structure building after noticing that
it wreaked havoc with their computers.  The wife of a couple (near Boulder,
CO) ran the little home composite reinforcement supply business while her
husband was a computer consultant of some kind.  We have a couple computers
here at Lightning Paddles and I've not noticed any problems that I couldn't
blame on Bill Gates' lack of programming expertise....<grin>  Maybe the
"can't hire decent help" is Billy's best excuse?  

I don't remember the resistances I measured, and I'm sure they'd vary
considerably from paddle to paddle.  They were pretty high, but still did
conduct.  I don't think I'd worry about using a graphite paddle on the
water from that standpoint.  I do remember that someone (in Maine?) was
killed a few years back by lightning and his paddle shaft was aluminum.  I
don't know if it had any bearing on the death, just that the fact was
mentioned in the info source.  

High voltages such are produced by lightning (the electrical kind, not the
paddle kind <grin>) would probably not be affected much by paddle material
(or boat material -- some boats have graphite reinforcing in them, too).
The air is a pretty good electrical insulator.  Fiberglass is a slightly
better insulator than air.  Graphite would be less so.  Someone earlier in
this thread mentioned the "cone of protection."  I've heard that it works
both ways.  A tree gets hit by lightning and there are burn spots in the
grass all around the tree where minor bolts hit the ground near the tree.
All the power in lightning doesn't take the path of least resistance.  

I wouldn't even hesitate to use an aluminum shafted paddle on the water if
nothing lighter was available.  I see someone else just posted a similar
"don't worry, nothing you can do about it" response.  

Hank Hays
Lightning Paddles
http://www.paddles.com/
lightning_at_paddles.com

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From: Bill Leonhardt <leonhardt_at_bnldag.ags.bnl.gov>
subject: Re: [Paddlewise] St. Elmo's Fire ---> Lightening
Date: Tue, 05 May 1998 12:20:09 -0400
There has been some discussion regarding paddle material and whether one
material increases your chance of being hit by lightning.  It seems to me
that no one is considering that your paddle blade will most likely be
partially coated with (salt) water, running to your drip rings and then
down to a larger body of water.  Sorta like a path from the tip of your
paddle to ground.  I suspect this has a non-negligable effect and,
therefore, makes the actual paddle material less of a factor. 

Bill Leonhardt
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From: John Winters <735769_at_ican.net>
subject: Re: [Paddlewise] St. Elmo's Fire ---> Lightening
Date: Wed, 6 May 1998 08:03:52 -0400
My Dear Dear Friends,

I have followed this lightning and paddle thread and am mildly surprised
that such erudite people as the Paddlewsie contributors have not picked up
on this, the true reason why the Inuit developed the Greenland paddle. It
is well known that bone is a poor conductor of electricity and that is why
the Inuit paddle maker tipped his paddle with bone. Some labor under the
impression that the bone tips were to protect the paddle from rock damage
but which would you be more concerned about - being fried by lightning or a
rough paddle tip.

Indeed, a rough tip could have been an advantage in producing more
sensation in the Inuit game of "slap and tickle".


What makes the discovery of the non conducting paddle more significant is
Lightning is a rare thing in the Arctic. Thus the Inuit deduced its
existence and took preventative measures  just in case there was a climatic
change and thunderstorms moved north. Of course, being very cautious people
they also developed the low Greenland stroke that keeps the paddle tip low
and away from lightning strikes. I myself have witnessed how people
paddling with the Greenland stroke rarely get struck by lightning unless
paddling on a golf course with their Nibblick elevated in a sign of elation
for holing a seal in one.

Many have maligned the Inuit saying they had no science but surely this
proves the opposite. It is a superb example of pure science that the Inuit
theorised the existence of lightning and even  developed a method of
dealing with it. In this they anticipated the modern sea kayaker's concern
for safety and obsession with being prepared for every eventuality. What
matters is that the Inuit anticipated Benjamin Franklin by centuries.


Dr. Peregrine Inverbon, Ph.d., DD, LL.d, Ph.G
Transcribed by his humble servant John Winters




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