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    Turning Off the GPS
    From: Gordon Talge
    Date: 2006 Apr 4, 14:10 -0700

    Just for the heck of it, I wonder what would happen,
    if some terrorists managed to turn off the GPS system, or
    maybe even better, have it give the wrong positions.
    
    I have noticed that a lot of people seem to say they keep
    a sextant and tables, etc, for backup. The problem that I
    see with that is it takes a lot of practice to get good at using a
    sextant and working out sights by hand. Someone who has
    only tried out their sextant on a calm day or on the beach,
    may find it hard to get a decent shot on a pitching boat
    or ship, and then work out a sight where one slip of a
    plus or minus, or wrong column, would make it all for naught.
    
    BTW,
    
    Has anyone seen those German films of the U-Boats during World War II
    in the North Atlantic pitching and rolling? I start getting seasick
    just watching it. I saw one where a German Officer was taking a noon
    sight on a sub like that. They may have been the enemy, but they
    sure had guts. (It took guts to stand up to them too)
    
    -- Gordon
    
    
    

       
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