On a voyage via the southern tip of Nova Scotia (LAT 43°20'N, LONG 65°35'W) you wish to sail the shortest route to La Coruna, Spain (LAT 43°20'N, LONG 8°24'W). Which of the following will require you to plot a composite sailing? (Use gnomonic tracking chart WOXZC 5274)
Official USCG Answer & Rule Citation
Correct Answer: Option D — Icebergs reported extending west to west-northwest from LAT 47°00'N, LONG 35°00'W
Composite sailing is employed when a great circle track reaches a latitude higher than a predetermined limit, often due to navigational hazards like ice. Option D identifies icebergs at 47°N, 35°W, which necessitates limiting the maximum latitude of the voyage to avoid these hazards, thus requiring a composite sailing approach.
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