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    Re: Role of CN at sea, was Re: Averaging sights ...
    From: Robert Gainer
    Date: 2004 Oct 15, 18:45 +0000

    Herbert Prinz said,
    >I do not see how one can maintain this attitude in the face of reality. In
    >my
    >admittedly very limited experience of ten thousand off shore miles over the
    >last
    >ten years I have not ONCE been in a situation where GPS didn't work, but
    >cel nav
    >would. In fact, I have not once been in a situation at sea where GPS didn't
    >work.
    >Full stop. But I have REPEATEDLY been in situations where celestial was
    >unavailable for several days in a row and GPS was the only position finding
    >tool
    >available. Conclusion: Celestial is not even a backup!
    >
    
    Herbert,
    I almost hate to admit this, but I still only use CN and a taffrail log as
    my only means of navigation offshore. More then that, I use a 56-hour
    chronometer. I sail for the pleasure of sailing, if you take all the skill
    out of it what�s the point to spending all the money to do a trip that can
    be better made for less cost by air. Take it to the extreme, a radio
    controlled boat run from your couch at home, what�s the point.
    
    I have several trans Atlantics now and there have been many times that CN
    was not available do to weather. I maintain a plot that is compared to all
    outside data and can see the effects of current and leeway so I think I can
    maintain a DR track going forward for several days without any worry.
    
    I deal with navigation the same way I deal with sailing without an engine or
    electric system.  Plan ahead and try not to get into a position where you
    �need� either the engine or magic for navigation. They share some of the
    same goals, stay off lee shores and don�t make landfall under poor
    conditions. I know how to watch the weather, and time my landfall to avoid
    bad weather and a foul tide.
    
    I take some pride in my skills and have no immediate plans to add any
    electronics to my boat.
    All the best,
    Robert Gainer
    
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