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    Re: sextant without paper charts
    From: Scott Owen
    Date: 2008 Oct 31, 21:41 -0500

    Lu Abel wrote:
    > The electromagnetic pulse from a nuclear explosion is one of them, but I
    > believe the sub would have to be surfaced to experience that (I am NOT a
    > nuclear weapons expert, but I believe salt water would attenuate an EMP
    > just as it attenuates radio waves, and if the explosion were underwater
    > and close enough for the EMP to be felt by the sub, I believe loss of
    > all electronics would be the least of the sub's problems).
    EMP is one way whether your submerged on on the surface.  Your right
    saltwater does attenuate EMP somewhat but if you are close enough and
    the detonation large enough...  what's the old adage "close enough is
    good enough when it comes to horsehoes [the game], hand grenades and
    nucs.  Second would be some sort or flooding casualty which could have a
    myriad of causes and finally fire which is the most feared at sea and
    can also be caused by many things.  Loss of all electronics from
    whatever casualty you can think up still does not relieve the CO from
    safely GETTING TO and entering port if the submarine or ship is still
    operable and not sunk.
    > BTW, Scott, thanks for your thoughts.  Now all we have to do is to
    > figure out how to sneak on that sub and see how she does sight reductions!
    Your welcome.  I could tell you how they navigate but then I'd have to
    kill you.  IMHO the prudent CO would probably want more than just the NA
    to do reductions in an emergency situation and in some cases [ship/sub
    not DNC authorized] would be required to carry paper copies of a LOT of
    charts and publications even if they didn't want to.
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