The COASTAL DRILLER is loaded as shown in the Sample Load Form Number 1 (Rig Move). If the contents of 6 and 7 drill water tanks are discharged, what is the new height of the center of gravity corrected for longitudinal free surface effects?

Correct Answer: Option C — 50.79 feet

Longitudinal center of gravity height adjustments following tank discharges require summing final vertical moments and dividing by the new total displacement, then applying longitudinal free surface corrections. These combined stability computations establish the updated corrected longitudinal center of gravity at 50.79 feet.