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    Re: Lightning at sea
    From: Steve Moss
    Date: 2004 Oct 15, 09:45 +0100

    The best place for your handheld GPS (and VHF etc.) during an 
    electrical storm is in the oven!  It acts as a Faraday Cage, all your 
    boats electrics may be fried but your handheld should still work.
    
    Don't forget to remove it before cooking supper....
    
    Steve Moss
    Food Features / Farnham Forge Studio
    5 Upper Church Lane, Farnham, Surrey GU9 7PW, UK
    
    On 15 Oct 2004, at 01:32, Gary Harkins wrote:
    
    > In a message dated 10/14/2004 7:20:21 PM Eastern Standard Time, 
    > lisa{at}COPYCAREPACIFIC.COM writes:
    > I guess what I'm asking is that if we're ever in that situation again,
    > what should we do:
    >  
    >  
    > Lisa:
    >  
    > I'm no "lightning" expert but I do have a degree in electronics and 
    > know some of the principles of ultra high voltage.  I would think that 
    > the steel hull would be of great advantage.  When lightning hits a 
    > typical fiberglass boat it has a low resistance path almost all the 
    > way to the water. (assume aluminum mast).  If the boat is not properly 
    > grounded the lightning will experience a high resistance due to the 
    > nonconductivity of fiberglass.  This will sometimes cause the 
    > lightning to "blow" through the hull, leaving a hole.  Note, this 
    > doesn't always happen.  I was hit last year and the hull experienced 
    > little damage.  A steel hull should have nearly infinite low 
    > resistance paths to the water.  This is ideal and should result in no 
    > hull damage.  Electronics are an entirely different story, with 
    > anything except a very minor hit you will probably loose most if not 
    > all of your electronics.  The area of concern would be the crew.  
    > Every attempt should be made to keep the crew from touching metal 
    > objects.  In fact, the better they are insulated from any metal 
    > objects the better.
    >  
    >  
    > Gary Harkins C400 #140 "Cygnus"
    > Website   http://www.hometown.aol.com/htycgary/myhomepage/index.html
    > Harbour Towne Marina, Muskegon, Michigan Slip C-28
    > Harbour Towne Yacht Club, Life Member
    > C400 National Association
    > United States Power Squadrons-JN
    >
    > NRA Life Member
    > MCRGO (Michigan Coalition for Responsible Gun Owners)
    > JPFO (Jews for the Preservation of Firearms Ownership)
    
    
    

       
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