Safety & Environmental Protection (Deck) USCG Question #3055 (Set 86)

The sailing drafts are: FWD 22'-06", AFT 23'-06" and the GM is 3.3 feet. Use the information in Section 1, the blue pages, of the Stability Data Reference Book, to determine the available righting arm at 22° inclination.

Official USCG Answer & Rule Citation

Correct Answer: Option B — 1.8 feet

Consult the Stability Data Reference Book, Section 1. Using the mean draft of 23' 0" and a GM of 3.3 feet, identify the appropriate stability curve. By interpolating the GZ value at a 22-degree angle of inclination, the resulting righting arm is determined to be 1.8 feet.

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