While the DEEP DRILLER is loaded as shown in Sample Form #4 (Drilling), casing is accidentally dropped over the port side. Because the sounding level and port aft inclination are slowly increasing, you decide that tank 10P has minor damage. Among the possible corrective actions is __________.
• Flooding and trim/heel relationship – how damage on the port side aft affects list and draft changes • Counterflooding principles – where to add water to reduce list without dangerously increasing draft or stress • Effects of deballasting vs. adding weight when you already have increasing port aft inclination
• If tank 10P (port, aft) is damaged and slowly flooding, what happens to the vessel’s port list and aft draft over time? • To reduce a port list caused by flooding aft on the port side, would you want to: remove weight from port, add weight to starboard, or change something forward/aft? Think specifically about which tank location best opposes the heeling moment from 10P. • Which option(s) would make the existing problem (port aft getting heavier) worse instead of better?
• Confirm which tanks are port vs. starboard and forward vs. aft based on the numbering used in Sample Form #4. • Evaluate whether each choice would increase or decrease the port aft heeling moment. • Check which action fits standard damage control practice: counterflooding symmetrically vs. removing ballast from the damaged side.
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