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    Ho 211
    From: Chuck Griffiths
    Date: 2002 Jan 16, 6:55 AM

    I'm new to the group so forgive me if this is old news. Going through the
    message archives I came across a good discussion comparing different versions of
    the Ageton's tables - mostly the Bayless version v. the tables as printed in
    pre-1995 versions of Bowditch. Is everyone aware of Henning Umland's version of
    the Ageton tables? He has recalculated A and B values for every .2' instead of
    the .5' found in the Bowditch tables. These tables can be downloaded from his
    website http://home.t-online.de/home/h.umland/index.htm under the freeware
    section. I never have understood why anyone would use either HO 229 or HO 249 in
    preference to Ageton. The only good argument I can give any credence to is the
    greater accuracy of HO 229 but I believe Mr. Umland's version give comparable
    accuracy - without interpolation and in only 90 pages of paper.
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