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- Q159 - Navigation Problems: Oceans
171. Determine the great circle distance and initial course from LAT 24° 52.0' N, LONG 78° 27.0' W to LAT 47° 19.0' N, LONG 06° 42.0' W.
The great-circle distance between the two locations is 3593 nautical miles, and the initial course is 048.1 true. This result is derived using the spherical law of cosines to calculate the central angle and the great-circle course formula to determine the initial course.
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