Your vessel's drafts are: FWD 22'-03", AFT 22'-09"; and the KG is 23.2 feet. What is the righting moment when the vessel is inclined to 30°? (Use the reference material in Section 1, the blue pages, of the Stability Data Reference Book)
Official USCG Answer & Rule Citation
Correct Answer: Option C — 25,520 foot-tons
Calculate the mean draft of 22'-06". Extract the displacement from the hydrostatic tables. Using the stability curves for a KG of 23.2 feet, find the GZ at 30 degrees. Multiplying these values yields 25,520 foot-tons, confirming the vessel's righting moment under these specific loading conditions.
100% Free & Open Access — No daily limits, paywalls, or gated answers on BrightMariner.