Determine the great circle distance and initial course from LAT 08°53.0'N, LONG 79°31.0'W to LAT 33°51.5'S, LONG 151°13.0'E.
Official USCG Answer & Rule Citation
Correct Answer: Option A — 7635 miles, 233.9°T
Great circle sailing formulas from Bowditch Volume II solve the spherical triangle using latitude and longitude coordinates. Applying the cosine-haversine formula yields the initial true course of 233.9°T and a total great circle distance of 7635 miles.
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