The COASTAL DRILLER, in ocean transit at a draft of 10 feet 6 inches with winds greater than 70 knots, has a KGT of 38.7 feet and a KGL of 38.2 feet. The margin on the maximum allowable KG is __________.

Correct Answer: Option D — 1.3 feet

The stability margin is derived by subtracting the actual operational KG (KGT or KGL) from the maximum allowable KG limit specified in the MODU operating manual for the given draft and environmental criteria. Here, subtracting the actual value from the allowable limit yields a 1.3-foot margin.