The vessel has grounded in deteriorating weather. As Chief Mate, describe how you organise damage control operations.

A. DAMAGE CONTROL ORGANISATION — CM RESPONSIBILITIES: POST-GROUNDING DAMAGE CONTROL: (1) IMMEDIATE SAFETY: account for all crew — muster and headcount. Treat any injured crew as priority one. Assess immediate sinking risk; (2) SOUND ALL SPACES: sound all bilges, tanks, and void spaces — identify flooded compartments. Chart the flooding on the damage control plan; (3) DAMAGE CONTROL PLAN: the vessel's damage control plan (required under SOLAS and class rules) shows compartment boundaries, pumping arrangements, and cross-flooding arrangements. Use it; (4) STABILITY ASSESSMENT: calculate current stability with known flooding. Use the damage stability booklet to compare actual flooding with predicted scenarios. Is the vessel stable? Is the vessel at risk of capsizing?; (5) TEAM ORGANISATION: organise the crew into damage control teams — each team assigned to: monitor a sector (bilge sounding parties); operate bilge pumps; prepare materials (cement boxes, collision mats, wooden plugs); boundary cooling (fire prevention); (6) PUMPING: start all available bilge pumps on flooded compartments. Are they keeping up with ingress? If not — situation is deteriorating; (7) WATERTIGHT INTEGRITY: close all watertight doors. Isolate unaffected compartments to prevent progressive flooding; (8) NOTIFY MASTER / MRCC: master coordinates with coastguard; CM manages the internal damage control operation; (9) REFLOATING ASSESSMENT: when is the next high tide? Can the vessel float off under her own power or does she require salvage assistance?

B. After grounding, the Chief Mate's primary role is completing the cargo documentation to limit charterer liability. Damage control is the chief engineer's responsibility.

C. Once grounded, restart the main engine immediately at full power and attempt to drive the vessel off the ground before the tide falls. Speed of action prevents further damage.

D. Grounding damage control requires specialist salvage teams. No onboard actions should be taken until a salvage master arrives and takes command.

A. CM HEAVY WEATHER PREPARATION — PRE-DEPARTURE: (1) STABILITY CALCULATION: produce final departure stability calculation using the loading computer. Verify: GM exceeds loading manual minimum AND an appropriate margin above minimum for heavy weather (typical recommendation: GM at least 0.5-1.0m above minimum for Force 9+ North Atlantic); check GZ curve meets all intact stability criteria (2008 IS Code); verify trim is within acceptable limits; (2) FLOODING ANGLES: calculate the angle at which the vessel would be at risk of flooding — ventilators, air pipes, or other openings. Ensure this angle has adequate margin above the expected rolling in Force 9; (3) FREE SURFACES: minimise free surfaces in ballast tanks — either top up or press down. Partial tanks create large free surface corrections that reduce effective GM; (4) LASHINGS INSPECTION: physically check all cargo lashings on deck and in holds — direct the bosun and deck gang to retighten any slack lashings. Check hatch covers — all cleats tight, rubber seals intact, cross-joint seals good; (5) DECK FITTINGS: make rounds of the weather deck — secure all portable equipment; check anchor lashings; verify everything on deck is properly secured; (6) BILGES: sound all bilges and ballast tanks — confirm no unexpected water ingress; (7) CREW BRIEFING: brief the watch officers on what speed and heading changes to expect; advise the bosun to keep crew off deck in heavy weather; (8) PASSAGE PLAN REVIEW: review the passage plan with the master — identify alternatives if the weather is worse than forecast.

B. Stability in heavy weather is calculated automatically by the ECDIS loading computer. The Chief Mate only needs to check the final print-out, not independently verify calculations.

C. For a North Atlantic winter passage, the Chief Mate's preparation involves adding extra ballast to maximum capacity regardless of the effect on GM. Maximum ballast always equals safest vessel.

D. Heavy weather preparation is primarily the master's responsibility. The Chief Mate should focus on cargo documentation and hand-over notes rather than stability assessment.

A. CARGO SHIFT — CM INVESTIGATION AND MANAGEMENT: (1) INITIAL ASSESSMENT: 8-degree list unaccounted for by known weights — URGENT. Calculate: with current GM, what weight shift would produce 8 degrees? Formula: d = (W × GG1) / (Δ × GM). This quantifies the possible shift. Stability computer: input the assumed shift and see if it matches observed list; (2) INVESTIGATE CAUSES: (a) Reduce speed and alter course to a more comfortable heading — reduce rolling to minimise further shift; (b) If it is safe to do so, arrange for hold inspection to confirm or identify cargo shift. In Force 9, entry into holds may be impossible safely — wait for a reduction in conditions; (c) Check bilges in all holds — flooding can also cause a list; (d) Check ballast tanks — has a tank emptied or flooded unexpectedly?; (3) CORRECT THE LIST: options to reduce the list: (a) Ballast: pump ballast water to the high side to counteract the list. Use cross-filling of double bottom tanks; (b) Do NOT enter holds to reshift cargo in heavy weather — this is extremely dangerous; (4) STABILITY CALCULATION: recalculate stability with the assumed cargo shift. If GM appears to be reduced significantly — master to consider heading for nearest port of refuge; (5) NOTIFY MASTER: immediately — an 8-degree list is a serious stability situation; (6) MAYDAY READINESS: if list is increasing and stability is deteriorating, prepare for emergency.

B. An 8-degree list can be corrected by transferring fuel oil between port and starboard service tanks. No other investigation is necessary as a list of 8 degrees is within normal operating parameters.

C. Send the bosun's team into the cargo hold immediately to investigate and reshift cargo. Finding the shifted cargo source takes priority over safety considerations in Force 9.

D. Continue passage at full speed. An 8-degree list in heavy weather is caused by dynamic rolling only and will self-correct when the weather improves.