[Public-List] lightning protection & grounding plates

[Rod Symmes]

Gord, copy me also, please.

harmony at aztec-net.com

Cheers,    Rod

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  ----- Original Message ----- 
  From: LDGCYBERNET at aol.com 
  To: public-list at lists.alberg30.org 
  Sent: Thursday, March 06, 2008 2:50 PM
  Subject: Re: [Public-List] lightning protection & grounding plates


  Please send to me the account, I enjoy your stories.
   
  Larry
  ldgcybernet at aol.com 
   
   
  In a message dated 3/6/2008 2:31:03 P.M. Eastern Standard Time,  
  mainstay at csolve.net writes:

  Hi there  - 

  We sail in the upper Great Lakes - we are out in at least one  memorable
  electrical storm each year.  If anyone wants to read an  account of how our
  A30 coped with what we later learned were 80knt winds,  write to me off list
  and I will send you the account I wrote for our club's  newsletter a couple
  of years ago.

  I should add to the lightening  stories I wrote earlier... Those four are the
  only ones I know of first  hand in 35 years of sailing.

  Gord



  > Dan Landrigan  wrote:
  >>    Quick question for you more experienced  sailors. What protection do
  >>    you take against lighting  strikes?
  > 
  > Clean living.
  > 
  > A decade or more ago,  I did a lot of research into the topic.  (I was
  > also researching  lightning protection for work, at the time.)  The
  > biggest rub is  that to get a good ground connection to the water, you
  > need two square  feet of clean copper.  Not only is this a large area,
  > but it  won't be clean for long.
  > 
  > As Gord says, people get lucky and  unlucky both ways.  Given that
  > there's not sure-fire solution,  taking the easier route of doing nothing
  > seemed prudent for  me.
  > 
  > One thing you should /NOT/ do--is to ground your rig to  the
  > through-hulls.  In my research I came across an incident  where this had
  > been done, and a lightning strike blew out every  through-hull.  This is
  > an indication that halfway measures are  likely to be worse than none at 
  all.
  > 
  > Where are you  located?  With the exception of southern Florida,
  > lightning  strikes are actually relatively uncommon in the United States.
  >  
  > -  George

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