Re: [Paddlewise] lightening strikes

From: Nick Schade <nick_at_guillemot-kayaks.com>
Date: Mon, 27 Oct 2003 09:38:34 -0500
Lightening generally passes through thousands of feet of air between 
the cloud and the ground. Air is a excellent insulator. Don't be under 
the impression that a fraction of an inch of plastic, wood or 
fiberglass will effect the lightening in any manner. There is nothing 
you can put between yourself and lightening that will provide any 
additional insulation. Wood, plastic or fiberglass will make absolutely 
no difference to the lightening.

The only possible form of protection is providing a better path for the 
lightening than your body. This is the principle of a lightening rod. 
Many people know that it is safer in a car than outside. Most people 
assume that this is because of the tires. This protection is provided 
by the metal shell of the car which provides a better conduction path 
than your body. The tires are almost irrelevant  (although steel belted 
radials may make a difference). The insulation provided by rubber tires 
would be vaporized instantaneously and would not effect lightening that 
can course through miles of air.

If anything an aluminum framed kayak will be safer than a 
non-conducting boat. If you tuck down into the cockpit, you will have 
something like a Faraday cage which may provide some modest protection. 
The boat would probably not survive a direct strike, but possibly you 
would be alive to swim out of the skin.
Nick

On Saturday, October 25, 2003, at 07:42  PM, alex wrote:

> The boat that PeterO paddled - Feathercraf Kahuna - is pretty much 
> aluminum
> (frame), with sythetic skin around which doesn't  help much, being very
> thin.  Such object may be doesn't attract lightning, being very low, 
> but is
> not protected from not only direct strikes, but from close strikes as 
> well
> (they may get you through surface of salty water, albeit with reduced
> power). Fiberglass or playwood kayak is probably more safe.
>
>> Hi All,
>>
>> Are there any records of paddlers struck by lightening, as
>> distinguished from sailors in boats with lightening rod masts, etc.?
>> We are not even paddling aluminum watercraft. Our paddles are usually
>> wood or fiberglass.
>
Nick Schade

Guillemot Kayaks
824 Thompson St
Glastonbury, CT 06033
USA
Ph/Fx: (860) 659-8847
http://www.guillemot-kayaks.com/
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Received on Mon Oct 27 2003 - 06:38:49 PST

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