Your vessel is carrying 4 units of 50-tonne offshore equipment on the main deck, lashed with wire and chains. The forecast shows Force 9 for the next 24 hours. As Chief Mate, what actions do you take?

A. Heavy weather cargo securing precautions: (1) Inspect ALL deck cargo lashings before entering heavy weather — check tension, condition of lashing points, packing pieces, and anti-vibration pads; (2) If lashings appear inadequate: tighten turnbuckles, add additional lashing legs, apply extra dunnage; (3) For 50-tonne offshore units: calculate the lashing forces against the Cargo Securing Manual (CSM) — the CSM specifies lashing arrangements based on the CSS Code (Code of Safe Practice for Cargo Stowage and Securing, IMO); (4) Consider course alteration to reduce the dynamic forces on the cargo — quartering seas may reduce rolling significantly vs beam seas; (5) Consider speed reduction — slower speed reduces slamming and impulsive accelerations; (6) Assign deck watches to monitor cargo condition — DO NOT send crew to inspect lashings in breaking seas; (7) Report cargo condition to the master and company regularly; (8) If cargo is at risk of shifting or being lost overboard, consult CSM and if necessary seek a haven.

B. 50-tonne offshore equipment is heavy enough that its own weight prevents movement. Additional precautions in Force 9 are unnecessary for heavy cargo.

C. Assign crew to continuously monitor and tighten lashings during the heavy weather period. Regular adjustment of deck cargo lashings is required in heavy weather.

D. Contact the cargo owner and request instructions on lashing adjustments — the cargo owner has responsibility for securing their specialist equipment once it is loaded.

A. Chief Mate < 3000 GT certificate (STCW Regulation II/2 — Chief Mate < 3000 GT): permits serving as Chief Mate on ships less than 3000 GT — this includes many coastal traders, short-sea vessels, offshore support vessels, large passenger ferries, and survey vessels. Limitations compared to Unlimited: (1) Cannot serve as Chief Mate on vessels of 3000 GT or above; (2) May be geographically unrestricted — depends on individual endorsement (CM 3000 GT may have near-coastal or unlimited geographic endorsement depending on training and flag state); (3) The competency standard assessed covers the same management-level functions as unlimited but with parameters appropriate to smaller vessel operations (e.g., cargo types, stability calculations, crew size); (4) The certificate holder can progress to CM Unlimited and Master Unlimited by completing additional sea service and passing further oral examinations.

B. Chief Mate < 3000 GT is identical to Chief Mate Unlimited except it is valid for near-coastal voyages only. Geographic limitation is the only difference.

C. A Chief Mate < 3000 GT certificate is a temporary licence issued to officers who have passed the theory but not the practical assessment. Full Chief Mate Unlimited is required for independent command of a vessel.

D. The 3000 GT limit refers to cargo capacity, not gross tonnage. A Chief Mate < 3000 GT certificate is valid on any vessel that carries less than 3000 tonnes of cargo.

A. SOLAS V Reg 34 Appraisal stage: gather: (1) Weather forecast — North Sea winter weather from Met Office and NAVTEX: likely depressions every 3-5 days, Force 8-9 common, sea state 5-7m in the northern North Sea; (2) Tidal information — tidal streams in the North Sea can reach 2-3 knots off headlands; factor into ETAs and berth windows; (3) Notices to Mariners — update charts; check for new wrecks, hazards, or Traffic Separation Schemes modifications; (4) Ship's condition — cargo distribution, stability at departure, GM, SF/BM; (5) Pilot/port information — check Rotterdam Waterway guidance, Maas approach, VTS; (6) NAVAREA warnings and current MSI broadcasts. Planning stage: (1) Lay off the track on charts — clearances from Humber, Dutch Frisian Islands, Traffic Separation Schemes; (2) Plan departure for fair weather window if possible; (3) Identify contingency ports (Bremerhaven, IJmuiden) if weather deteriorates; (4) Calculate distance, speed, ETA with weather routing consideration.

B. For a coastal passage on a familiar route, formal voyage planning under SOLAS V/34 is not required. Use the standard coastal track and update the master on departure.

C. Voyage planning is the master's responsibility. The Chief Mate prepares the cargo loading plan and stability calculation — navigation planning is separate.

D. Download the ECS route from the company system and confirm the autopilot waypoints. Modern ECDIS voyage planning satisfies SOLAS V/34 requirements without manual chart work.