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    Why Not To Teach Running Fixes
    From: John Karl
    Date: 2009 Dec 13, 10:25 -0600

    Ah, the traditions of the sea.
    
    For all the talk on how to teach running fixes, here's my 2 cents
    worth on why to not teach them at all -- they make no sense whatsoever.
    
    The figure below shows that they operate under extremely ridiculous
    assumptions: They assume that the estimated DR track perpendicular to
    LOP1 is completely accurate and that the DR component parallel to LOP1
    is completely without value.  Can anyone on the List justify these two
    assumptions??
    
    I recommend using the Estimated Position (EP) concept shown in the
    figure.  It fully honors the new LOP2 while retaining the information
    in the DR that is not contradicted by LOP2.
    
    JK
    
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