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    Re: minus index corr better than plus
    From: Dan Hogan
    Date: 2000 Jul 27, 20:23 EDT

    Aubrey:
    Sorry, should have said I'd service before further use. There are 5 degree
    markings "off" of Zero. If it ever got more than that I'd assume it was
    dropped.
    On 27 Jul 2000, at 9:32, Aubrey O'Callaghan wrote:
    > Dan,
    > Why do you talk about getting it serviced ?
    > This is an adjustment that the Navigator can make to the sextant. The text
    > books say that one should not worry about a few minutes, to try and correct
    > this. Correcting out small off/on the arc erros are called "worrying the
    > sextant" and eventually end up with the adjusting screws becoming "loose".
    > In any case we calulate out the small differences.
    [Snip]
    Dan Hogan
    dhhogan{at}XXX.XXX
    NAV-L Web Page: http://nav.cnchost.com
    

       
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