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    Using H.O. 249 tables
    From: Dave Boatman
    Date: 1997 Jul 29, 1:52 PM

    Hi guys,
    Having just delivered a ULDB 33' from Newport Beach, California to Honolulu,
    Hawaii I had an interesting little experience with the celestial.   During
    this delivery I intended to do some serious improvement in my skills with
    twilight stars (and indentification) and with calculator techniques which
    I've hardly ever used.
    I've always been an advocate of Tables and blank paper, no forms (let's not
    re-open that debate!) and sure enough the first casualty of the trip was the
    TI calculator with brand new battery.   It was flipping funny numbers and I
    ended up sending it swimming, darn it.
    Back to the traditional tables and paper.
    Then the cloud cover didn't cooperate a whole lot either but I managed a
    couple of high points, anyway.   My 'new' sextant, a 3/4 size Simex, turned
    out very reliable fixes and was easier than I thought it would be.   For
    open ocean I was pretty pleased.  All my fixes came out within 5nm of actual
    position, usually  3nm, and in one case 1nm!*
    How do I know?   GPS!  :-)
    Dave Boatman
    *....though the 1nm error was surely do to random chance (SOME of them are
    going to be closer and some further).
    **   Using H.O. 249 tables and Yachtsman's Almanac
    ***  Sure I used a GPS, but I was ready for it to follow the path of the
    calculator.....electronics being what           they are.
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