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    Re: More on 2102-D & Radar Plotting Sheet
    From: Byron Franklin
    Date: 2010 Oct 20, 16:06 -0700

    To whom it may concern, from Byron.
    I started to use the Rude Star Finder about 1958 and have taught the Star Finder and Celestial Navigation to thousands of Officers and sailors. About 20 years ago I was asked if I had any special trick to teach Celestial. I have Navigation Radar and Piloting technique named after me in NO9, Ho 1310 and some are taught in Navy and Cilvian schools. My answer was that I would make a Celestial training aid for celestial Navigation that is the basic for the Two Minute Star Finder. David Burch book on the Star Finder and Seven Ocean Video are excellent in explaining the use of2102-D. The problem is that the 2102-D is used only for people that are trained or study Celestial Navigation. The 2102-D is difficult and requires other reference, Nautical Almanac, than is designed to only fine stars. My two minute is designed to do much more, without reference, and for anyone interested in science and earth and heaven. I believe that it is on the 5th grade level and for a large group of people, not for Navigation alone.
    The 2102-D is costly and contains Latitude disk that few will ever use. In all my years I think I only used 5 to 75 but my use was on Navy ships. My first use for other than Stars was for Great Circle for directional antenna. Most users will be limited to 2 or3 different LAT. Note: My waterproof paper horizon disk can be place on the center post with a closer LAT. To increase accuracy. I did have my star finder design and procedure copyright about 10 years ago.

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