Your vessel's drafts are: FWD 22'-03", AFT 22'-09"; and the KG is 24.4 feet. What is the righting moment when the vessel is inclined to 15°? (Use the reference material in Section 1, the blue pages, of the Stability Data Reference Book)
Official USCG Answer & Rule Citation
Correct Answer: Option B — 5,916 foot-tons
Mean draft is 22'-06". Determine displacement from the hydrostatic tables. Using the stability curves for a KG of 24.4 feet, find the GZ at 15 degrees. Multiplying the displacement by the GZ value yields 5,916 foot-tons, accurately reflecting the vessel's righting moment at this specific heel.
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