You depart LAT 32°16.6'N, LONG 68°28.0'W. What is the course and distance as calculated by Mercator sailing to a position at LAT 43°12.2'N, LONG 55°39.0'W?
Official USCG Answer & Rule Citation
Correct Answer: Option C — 042.8°T, 896.2 miles
Mercator course and distance formulas from Bowditch utilize departure and arrival coordinates to compute true course via the arctangent of departure longitude difference divided by meridional difference, and distance via secant relationships.
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