The COASTAL DRILLER, in ocean transit at a draft of 10 feet 6 inches with winds less than 70 knots, has a KGT of 50.6 feet and a KGL of 51.4 feet. The margin on the maximum allowable KG is __________.

Correct Answer: Option A — 13.6 feet

The margin on maximum allowable KG is found by subtracting the actual operating KG ($KGT$ or $KGL$) from the maximum allowable stability limit specified in the MODU's stability booklet for ocean transit under designated environmental loading conditions.