Navigation Problems USCG Question #722 (Set 21)

Determine the great circle distance and initial course from LAT 25°50.0'N, LONG 77°00.0'W to LAT 35°56.0'N, LONG 06°15.0'W.

Official USCG Answer & Rule Citation

Correct Answer: Option B — 3616 miles, 062°T

Apply great circle sailing formulas from Bowditch to compute the shortest track between the departure and arrival positions. Solve the spherical triangle using latitudes and longitudes to determine the great circle distance of 3616 miles and the initial true course of 062°T.

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