You depart LAT 49°38'N, LONG 152°49'E, for LAT 49°38'N, LONG 176°12'E. What are the course and distance by parallel sailing?

Correct Answer: Option A — 090°T, 909 miles

Parallel sailing requires calculating the distance along the constant latitude of 49°38'N. The difference in longitude is 23°23' = 1403'. Distance = 1403 × cos(49.633°) = 1403 × 0.6477 = 908.7 miles. Since the destination is east of the departure, the course is 090°T.