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    Re: Bowditch (2002) Table 17
    From: Bill B
    Date: 2012 May 02, 01:34 -0400

    Gary
    
    I enjoyed the copy you sent, especially the method for removing possibly
    "fuzzy" IE's from the small angles often encountered with tables 15
    through 17. IE problems are proportionally much larger than body with
    attitudes.
    
    Summary: Take an on-the-arc observation with the bottom through the
    horizon glass and the top reflected, then take an off-the-arc reading
    with the top through the glass and the bottom reflected.  Average the
    two and voila, an angle not biased by any IE possible errors.
    
    Thanks
    
    Bill B
    
    
    
    On 5/1/2012 5:46 AM, Gary LaPook wrote:
    > Table 17 from the 2002 edition was also included in the 1938 edition as
    > table 11 and I have attached the explanation of its use from that
    > edition. It makes sense that this table had its main use for station
    > keeping in convoy, similar to the usage of the dip short of the horizon
    > table.
    
    
    
    
    
    

       
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