Safety & Environmental Protection (Deck) USCG Question #2228 (Set 68)

Use the material in Section 1, the blue pages, of the Stability Data Reference Book. If the KG is 24.2 feet, and the drafts are: FWD 22'-04", AFT 23'-00"; at what angle will the vessel lose positive stability?

Official USCG Answer & Rule Citation

Correct Answer: Option B — 78°

Entering the stability tables with the mean draft calculated from forward and aft marks and a KG of 24.2 feet determines the point of vanishing stability at 78 degrees.

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