The sailing drafts are: FWD 22'-08", AFT 23'-04" and the GM is 4.6 feet. Use the information in Section 1, the blue pages, of the Stability Data Reference Book, to determine the available righting arm at 20° inclination.
Official USCG Answer & Rule Citation
Correct Answer: Option A — 2.1 feet
Consulting Section 1 of the blue pages for drafts of 22'-08" forward, 23'-04" aft, and a 4.6-foot GM involves matching displacement characteristics to stability envelopes. Tracing the graphical data to a 20-degree angle of heel establishes an available righting arm of 2.1 feet.
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