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- Q127 - Navigation Problems: Oceans
316. You are on a great circle track departing from LAT 25°50.0'N, LONG 77°00.0'W and your initial course is 061.7°T. The position of the vertex is LAT 37°35.6'N, LONG 25°57.8'W. What is the distance along the great circle track between the point of departure and the vertex?
The great-circle distance between the departure and vertex positions is calculated using the spherical law of cosines, resulting in a central angle of approximately 44.4, which corresponds to a distance of 2664.9 nautical miles (2664.9 miles).
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