Welcome to the NavList Message Boards.

NavList:

A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding

Compose Your Message

Message:αβγ
Message:abc
Add Images & Files
    or...
       
    Reply
    Re: Lightning at sea
    From: Bill B
    Date: 2004 Oct 14, 19:50 -0500

    > 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.
    
    I know of some sailors that will carry heavy duty automotive jumper cables,
    and attached one end to the rigging? and let the other end drag in the water
    when electric storms come up.  Any feeling of whether this is
    safe/practical, or would help?
    
    Bill
    
    
    

       
    Reply
    Browse Files

    Drop Files

    NavList

    What is NavList?

    Join NavList

    Name:
    (please, no nicknames or handles)
    Email:
    Do you want to receive all group messages by email?
    Yes No

    You can also join by posting. Your first on-topic post automatically makes you a member.

    Posting Code

    Enter the email address associated with your NavList messages. Your posting code will be emailed to you immediately.
    Email:

    Email Settings

    Posting Code:

    Custom Index

    Subject:
    Author:
    Start date: (yyyymm dd)
    End date: (yyyymm dd)

    Visit this site
    Visit this site
    Visit this site
    Visit this site
    Visit this site
    Visit this site