A vessel at LAT 28°20'N, LONG 16°00'W is to proceed to LAT 21°00'N, LONG 18°00'W. What is the course and distance by mid-latitude sailing?

Correct Answer: Option A — 194.0°T, 453.0 miles

Middle-latitude equations calculate course and distance by resolving plane sailing triangles using mean latitude corrections. Following Bowditch standards, the traverse between the given positions yields a course of $194.0^\circ\text{T}$ and a distance of $453.0$ miles.