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    LOPs on metric graph paper
    From: Peter Hakel
    Date: 2012 Nov 16, 14:58 -0800

    About a year ago Antoine "Kermit" Couëtte kindly responded to my question about chart scales by stating that he used 1 cm per nautical mile in his plots.

    http://fer3.com/arc/m2.aspx/Chart-scales-Cou%C3%ABtte-nov-2011-g17359

    One way to achieve this is to use metric graph paper which has 1mm (i.e., 0.1 nautical mile) resolution.

    The spreadsheet intercept.xls calculates several characteristics of an LOP. Besides the usual intercept and azimuth, it also gives its intersections with the AP's parallel (cell F12) and meridian (cell F15). This information allows the quick plotting of the LOP simply by marking and connecting these two points. This technique will not work for LOPs that run close to the cardinal directions, but I believe that it is a good option to have available nonetheless.

    Additional information about this example is on my blog:

    http://blog.navigation-spreadsheets.com/2012/11/16/lop-plotting-using-metric.aspx


    Peter Hakel

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