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great'-cir'cle sail"ing



Pronunciation: (grāt'sûr'kul), [key] Navig.
sailing between two points more or less according to an arc of a great circle, in practice almost always using a series of rhumb lines of different bearings to approximate the arc, whose own bearing changes constantly unless it coincides with a meridian or the equator.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

great circlegreat-circle track

 

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