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- Q186 - Navigation Problems: Oceans
51. Determine the great circle distance and initial course from LAT 34°51.0'N, LONG 115°01.2'E to LAT 10°16.0'S, LONG 51°42.6'E.
The great-circle distance between the two locations is 4493 nautical miles, with an initial course of 245.6T. This was determined using spherical trigonometry, calculating the central angle and applying the Earth's circumference to find the distance, then using trigonometric functions to determine the initial course.
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