Deck General USCG Question #4089 (Set 130)

You have determined the maneuvering characteristics of your vessel by taking the radar ranges and bearings of an isolated light while making a turn. The results are listed in illustration D035DG. Based on this data what is the tactical diameter of the turning circle? D035DG

USCG Exam Illustration D035DG
USCG Examination Diagram: Illustration D035DG
Official USCG Answer & Rule Citation

Correct Answer: Option D — 880 yards

Tactical diameter is the lateral distance measured from the original course line to the position of the vessel after a 180-degree turn. Based on the provided maneuvering data in illustration D035DG, the vessel's path reaches a maximum lateral displacement of 880 yards upon completing the 180-degree turn.

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