You are on a voyage from Cape May (LAT 39°50'N, LONG 74°45'W) to the English Channel (LAT 49°00'N, LONG 05°00'W). What will NOT prohibit the use of a great circle track from departure to arrival? (Use gnomonic chart WOXZC 5274.)
Official USCG Answer & Rule Citation
Correct Answer: Option C — The high latitude in which the vertex lies
Great circle tracks are limited by landmasses or navigational hazards like ice. While ice, islands, and land prohibit specific routes, the latitude of the vertex is a mathematical property of the great circle path itself and does not inherently prohibit the use of the track for navigation.
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