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- Q186 - Navigation Problems: Oceans
50. Determine the great circle distance and initial course from LAT 26°00.0'S, LONG 56°00.0'W to LAT 34°00.0'S, LONG 18°15.0'E.
The great-circle distance between the specified locations is 3805 miles, with an initial course of 117T. This result is derived using the spherical law of cosines to calculate the angular distance and subsequent formulas to determine the initial course, accounting for latitude and longitude as negative angles in trigonometric calculations.
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