A semisubmersible in transit is at a draft of 19 feet. The depth of the lower hulls is 21 feet. How much bunker fuel at 54.0 lbs/cu ft could be taken on and still provide one foot of freeboard if the TPI is 52.3?

Correct Answer: Option C — 627.6 long tons

Allowable deadweight is determined by the difference between current displacement and maximum load line displacement. Using the 52.3 TPI and bunker density of 54 lbs/cu ft, taking on fuel up to one foot of remaining freeboard permits loading 627.6 long tons.