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    Re: Lightning at sea
    From: Paul Marcuzzo
    Date: 2004 Oct 15, 06:47 -0400

    Good morning Steve, I mention the same thing when I teach the Coast Guard
    Auxiliary GPS & Nav course.  I had one gentleman (obviously with a bigger
    boat) that a microwave is even better as it is totally shielded and less
    likely to accidentally having a melt down.
    
    Fair winds & following seas !
    Paul Marcuzzo
    Flotilla Commander
    Flotilla 98 - Charlotte Harbor, FL
    
    Visit us at The Flotilla 98 Web Site
    
    
    -----Original Message-----
    From: Yourname Here Steve Moss [mailto:steve{at}FOODPIX.CO.UK]
    Sent: Friday, October 15, 2004 4:46 AM
    To: NAVIGATION-L{at}LISTSERV.WEBKAHUNA.COM
    Subject: Re: Lightning at sea
    
    
    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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