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- Master & Chief Mate (Oceans or Near Coastal (Unlimited Tonnage)) »
- Q109 - Navigation Problems: Oceans
499. A vessel at LAT 20°00'N, LONG 107°30'W is to proceed to LAT 24°40'N, LONG 112°30'W. What is the course and distance by mid-latitude sailing?
Mid-latitude sailing uses an average latitude to calculate departure and determine course and distance. The correct answer is 315.3T and 394.0 miles, derived from calculating the departure using the mid-latitude and then applying the Pythagorean theorem to find the distance and trigonometry to find the course.
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