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    Re: Method used to compute navigational tables.
    From: Dave Walden
    Date: 2010 Feb 9, 11:25 -0800

    Of the books on my shelf, the following HO pubs are "upside down"

    HO 71, 90, 120 ,127, 171, 200, 208, 216, 218, 214

    these are "rightside up"

    HO 211, 229
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