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    Re: Sextant certificates
    From: Alexandre Eremenko
    Date: 2006 Jan 30, 16:24 -0500

    On Mon, 30 Jan 2006, Jim Hickey wrote:
    > Seems certificates represent a sense of formality without real practical use.
    I am of the same opinion.
    My SNO-T certificate shows +10" everywhere on the arc, which is nonsense
    by itself. I also spent some euros for the fun of having it
    certified by both Freiberger and Cassens-Plath last summer:-)
    In fact, my Russian manual says that a sextant should be certified
    EVERY TWO YEARS. SNO comes with many pages certificate where the first
    page is filled by the manufacturer and the rest are supposed to be filled
    in "special workshops" every two years.
    > I find it odd that an instrument maker would use this sort of convention.
    Not every manufacturer. Cassens-Plath does not make a usual certificate,
    just a statement that "the error is negligiblei for practical purposes",
    whatever this could exactly mean:-)

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