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- Q159 - Navigation Problems: Oceans
283. A vessel at LAT 49° 45' N, LONG 6° 35' W, heads for a destination at LAT 25° 50' N, LONG 77° 00' W. Determine the true course and distance by Mercator sailing.
Mercator sailing between the given latitudes and longitudes yields a true course of 246.5 and a distance of 3597 nautical miles. This result is derived from calculating the difference in latitude and longitude, using meridional parts to determine the course, and then applying Mercator geometry to find the distance.
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