Navigation Problems USCG Question #1547 (Set 46)

You are planning a voyage from departure Seattle (LAT 48°30'N, LONG 125°00'W) to a position at LAT 44°00'N, LONG 161°00'E. Which statement is TRUE? (Use gnomonic chart WOXZC 5270.)

Official USCG Answer & Rule Citation

Correct Answer: Option A — Military exercises north of 53°N, between 150°W and 165°W, will not affect your voyage.

Gnomonic charts are used for great circle planning. Analyzing the track from Seattle to Japan, the path remains well south of the 53°N latitude band. Therefore, military exercises occurring north of 53°N between 150°W and 165°W do not intersect the planned great circle route, posing no navigational conflict.

100% Free & Open Access — No daily limits, paywalls, or gated answers on BrightMariner.
Back to Navigation Problems Sets