Safety & Environmental Protection (Deck) USCG Question #2578 (Set 78)

Your vessel's drafts are: FWD 21'-04", AFT 21'-08"; and the KG is 20.6 feet. Use the selected stability curves in the blue pages of the Stability Data Reference Book to determine the remaining righting arm at 45° inclination if the center of gravity is 1.2 feet off the centerline.

Official USCG Answer & Rule Citation

Correct Answer: Option B — 4.4 feet

Read the baseline righting arm from the stability curves at 45° inclination for the specified draft and KG. Apply the transverse center of gravity correction ($1.2 \times \sin 45°$) to calculate the remaining righting arm of 4.4 feet.

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