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    Re: sextant without paper charts
    From: Bill B
    Date: 2008 Oct 27, 00:31 -0500

    Scott Owen responded: >
    > Yes, USN ships are required to carry a paper copy of the current
    > Nautical Almanac.  As to HO229, there is no paper copy requirement IF
    > the ship is authorized for usage of DNC charts.  Not all ships and
    > submarines are authorized for DNC usage yet.  In any event, the prudent
    > Commanding Officer would probably carry a paper copy of HO229 and any
    > Harbor chart that the ship is expected to call on during next expected
    > voyage.
    > I would also add that a stadimeter and a pelorus are still part of the
    > navigation hardware issued to the ship.  How much use they get in the
    > GPS age I can not say.
    Thanks Scott. Personally the lack of a periscope, given the ability of
    electronics to fail (or be caused to fail) at the worst possible moment
    would scare me.  It is reassuring to know they won't be flying blind (at
    least on the surface) in case of high-tech problems. Which reminds me of the
    report regarding US war planes on their way somewhere when they crossed the
    dateline (if I recall the circumstances), and most systems shut down. Darn
    near flying blind. Just a software problem...a line of code here or there.
    Bill B.
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