You depart LAT 52°01'N, LONG 176°09'E, for LAT 52°01'N, LONG 178°46'W. What are the course and distance by parallel sailing?

Correct Answer: Option B — 090°T, 188 miles

Parallel sailing formula: Departure = DLong * cos(Lat). DLong = 176°09'E to 178°46'W = 5°05' = 305'. Departure = 305 * cos(52°01') = 187.7 miles. Since moving from East to West longitude, the course is 090°T (Eastward) is incorrect; the change is 188 miles at 090°T.