The DEEP DRILLER is loaded as shown in Sample Load Form #3 (Preparing to Drill). If the liquid mud in mud pit #4 (see table 8) is dumped, what would be the new height of the center of gravity corrected for transverse free surface effects?

Correct Answer: Option C — 52.88 feet

Removing fluid mass from an off-center tank changes both vertical and transverse stability parameters. Applying the transverse free surface correction (FSC) to the new uncorrected vertical center of gravity using DEEP DRILLER Sample Load Form #3 data yields a height of 52.88 feet.