Glenn,
Jim's Great Circle Map (Pizza) has both rectangular and polar map
projections menus.  The rectangular map has the curved lines.  The polar map
has straight lines, but both are great circle bearings.   I assume the map
he  is using in this excercise is the polar projection.  The menu is
slightly different than his freeware version.  Perhaps he can clear this up.
73, Gil NN4CW
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