Safety & Environmental Protection (Deck) USCG Question #3063 (Set 86)

Tour vessel's drafts are: FWD 22'-09", AFT 23'-07"; and the KG is 24.2 feet. Use the selected stability curves in the blue pages of the Stability Data Reference Book to determine the righting arm at 18° inclination.

Official USCG Answer & Rule Citation

Correct Answer: Option A — 0.7 foot

Calculate the mean draft and utilize the KG value to enter the stability curves. The righting arm (GZ) at 18 degrees is found by identifying the intersection on the curve corresponding to the vessel's displacement and KG, reflecting the vessel's actual transverse stability characteristics under the specified loading condition.

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