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    Re: Hydrographic Office Pub.No.230
    From: Hewitt Schlereth
    Date: 2009 Mar 4, 09:54 -0400

    Also in Bowditch Vol 1 1977. The section on comparison of methods of
    celestial. So presumably carried on at least till then.  --Hewitt
    On 3/4/09, Paul Hirose  wrote:
    >  I wish all questions were so easy to answer. Pulled my 1984 Bowditch off
    >  the shelf and found HO 230 in the index.
    >  "H.O. Pub. No. 230 (Goetz), High Latitude Celestial Navigation Tables,
    >  designed in 1945 by Roy F. Goetz, was published by the U. S. Navy
    >  Hydrographic Office in 1946."
    >  [Two paragraphs describing the layout of the tables omitted. I will post
    >  them if anyone is interested.]
    >  "Only 400 of these tables were published. They were intended only for
    >  use in military aircraft operating beyond the latitude range of H.O.
    >  Pub. No. 218. Aftr Pub. No. 249 became available, H.O. Pub. No. 230 was
    >  canceled."
    >  --
    >  I filter out messages with attachments or HTML.
    >  >
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