The DEEP DRILLER, at a draft of 60 feet, has VM of 942,120 ft-tons, and FSML of 36,235 ft-tons. What is the KGL?
Official USCG Answer & Rule Citation
Correct Answer: Option C — 54.0 feet
Longitudinal center of gravity (KGL) accounts for free surface effects longitudinally. It is computed by dividing total vertical moments (VM) plus longitudinal free surface moments (FSML) by total vessel displacement, yielding 54.0 feet following standard MODU stability criteria under USCG guidelines.
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