Your vessel receives a distress call from a vessel reporting her position as LAT 35°01.0'S, LONG 18°51.0'W. Your position is LAT 35°01.0'S, LONG 21°42.0'W. Determine the true course and distance from your vessel to the vessel in distress by parallel sailing.

Question

Your vessel receives a distress call from a vessel reporting her position as LAT 35&deg;01.0'S, LONG 18&deg;51.0'W. Your position is LAT 35&deg;01.0'S, LONG 21&deg;42.0'W. Determine the true course and distance from your vessel to the vessel in distress by parallel sailing.

Accepted Answer

Option A: 090&deg;T, 140.0 miles. Parallel sailing applies because both vessels are at the same latitude (35°01.0'S). The difference in longitude is 2°51' = 171'. Distance = 171 × cos(35.016°) = 171 × 0.819 = 140.0 miles. Since the destination is east of the current position, the course is 090°T.

Your vessel receives a distress call from a vessel reporting her position as LAT 35&deg;01.0'S, LONG 18&deg;51.0'W. Your position is LAT 35&deg;01.0'S, LONG 21&deg;42.0'W. Determine the true course and distance from your vessel to the vessel in distress by parallel sailing.

Your vessel receives a distress call from a vessel reporting her position as LAT 35°01.0'S, LONG 18°51.0'W. Your position is LAT 35°01.0'S, LONG 21°42.0'W. Determine the true course and distance from your vessel to the vessel in distress by parallel sailing.