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    Re: Another Davis Instruments Mark 15 Question
    From: Rodney Myrvaagnes
    Date: 2003 Feb 28, 23:28 -0500

    On Fri, 28 Feb 2003 17:08:13 -0500, George Istok wrote:
    >I have been corresponding with someone at Davis Instruments who has just
    >informed me that the accuracy rate of the Mark 15 sextant is +/- 5 degrees.
    >I am hoping there is a typo somewhere in his message.  Also, I am not sure
    >what accuracy rate means.  Even though the sextant is plastic, low cost,
    >etc., surely it has better accuracy than 5 degrees.  Any thoughts?
    I have no idea what "accuracy Rate" means, but I had no trouble getting
    fixes within two miles with a Davis on a 32-ft light-displacement boat
    in reasonable sea conditions.
    Any plastic sextant requires an index check between sights because of
    thermal drift.
    Rodney Myrvaagnes   NYC                                                        
                        J36 Gjo/a
    "Curse thee, thou quadrant. No longer will I guide my earthly way by thee."  Capt. Ahab

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