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Things may have changed dramatically with the advent of GPS
navigation, which occurred long after I got out of the navigation
business. I would expect that computerized nagivation systems will
automatically calculate the heading on a great circle route, leaving
the navigator with precious little to do, once a chip is clear of
harbor restrictions.
Hugh
--
Hugh Haskell
<mailto:haskell@ncssm.edu>
<mailto:hhaskell@mindspring.com>