The DEEP DRILLER, while loaded as shown in the Sample Load Form #4 (Drilling), suffers damage to the starboard center column below the waterline. Pumping from tanks 2S and 9S is not sufficient to prevent increasing starboard list. You should consider counterflooding in tank __________.
• Transverse stability and list correction on a semi-submersible when one side is damaged • Relationship between damaged starboard tanks and which port or center tanks help restore balance • Understanding tank naming: numbers vs. letters (e.g., 2 vs. 9, P vs. S, C for center, BS/BP)
• Which side is damaged and losing buoyancy, and which side needs added weight (flooding) to reduce the list? • Look at the tank names: which option represents a tank on the opposite side of the damage that would most directly counter the starboard list? • Between outboard, inboard, and centerline tanks, which location is most effective for correcting a side-to-side list?
• Confirm which tanks are already being pumped out (2S and 9S) and what effect that has on weight and list • Verify which letter in the tank name indicates port (P) vs starboard (S) and which indicates center (C) • Check the Sample Load Form #4 layout to see where each listed tank is located transversely (port, starboard, or center) before choosing
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