How much drill water should be transferred from tanks 23 and 24 to tank 1 to level the COASTAL DRILLER, in transit at a draft of 10 feet 6 inches, if the total longitudinal moments are 1,700,000 ft-kips?
Official USCG Answer & Rule Citation
Correct Answer: Option B — 451 kips
Longitudinal stability calculations using the COASTAL DRILLER trim tables and sample load forms dictate that exactly 451 kips of drill water must be transferred forward to achieve zero trim and level the rig at the required transit draft.
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