What is the correct interpretation of the flag hoist G, 4, 2, 1, first substitute.
Official USCG Answer & Rule Citation
Correct Answer: Option B — G4214
The first substitute repeats the first flag in the hoist, which is the letter "G". Therefore, the hoist "G, 4, 2, 1, first substitute" expands numerically and alphabetically to mean "G4214" under International Code of Signals rules.
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