Determine the distance from LAT 63°54.0'N, LONG 04°52.0'E to LAT 63°54.0'N, LONG 18°24.0'W by parallel sailing.

Correct Answer: Option D — 614.2 miles

Parallel sailing formula: Departure = DLo × cos(Lat). The difference in longitude is 23°16' (1396'). At 63°54'N, the cosine of the latitude is 0.4399. Multiplying 1396 by 0.4399 gives 614.2 miles. This method is accurate for east-west travel along a constant parallel.