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- Q135 - Navigation Problems: Oceans
423. Determine the great circle distance and initial course from LAT 27° 51.0' N, LONG 71° 41.0' W to LAT 49° 45.0' N, LONG 06° 14.0' W.
The great circle distance and initial course from LAT 27 51.0' N, LONG 71 41.0' W to LAT 49 45.0' N, LONG 06 14.0' W is 3214 miles at a course of 046.9T. This result is derived by applying the spherical law of cosines to determine the central angle and subsequent great-circle course formulas.
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