The DEEP DRILLER is loaded as shown in the Sample Load Form #1 (Transit). What is the new longitudinal free surface correction (FSCL) if the entire contents of Salt Water Ballast Tanks 1P and 1S are discharged?
Official USCG Answer & Rule Citation
Correct Answer: Option B — 1.09 feet
Discharging entire tank contents alters free surface moments. Applying standard hydrostatic formulas for the remaining slack tanks yields the new longitudinal free surface correction of 1.09 feet.
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