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View Diary: How Airliners Work - Navigating the Oceans (75 comments)

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  •  Navigating on a great circle requires constant (4+ / 0-)

    small adjustments in heading or the route becomes a rhumb line which is a spiral path on the surface of a sphere.  In practice, the sailing of a great circle route is approximated by breaking it down into a series of small rhumb line segments with the heading adjusted to correct the route back toward the great circle route.

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