The DEEP DRILLER is loaded as shown in the Sample Load Form #1 (Transit). Excessive motion makes it necessary to ballast down to survival draft. It is decided to check the stability at the intermediate draft of 32 feet. If the added ballast has an average VCG of 9.03 feet, and the sum of free surface moments is 56,244 foot-tons, what is the new margin on the maximum allowable KG?
Official USCG Answer & Rule Citation
Correct Answer: Option D — 4.06 feet
Calculations derived from sample stability load forms determine the updated vertical center of gravity and compare it against the vessel's maximum allowable KG curve, yielding the specific operational safety margin of 4.06 feet at the 32-foot intermediate draft.
100% Free & Open Access — No daily limits, paywalls, or gated answers on BrightMariner.