Q: You hold an OOW < 500 GT Near-Coastal certificate. Your examiner asks you to describe what this certificate permits you to do and what it does NOT allow.

STCW Regulation II/3 OOW Near-Coastal certificate permits: watchkeeping officer duties on ships of less than 500 GT engaged on near-coastal voyages only. Near-coastal: defined by the flag state — in the UK (MCA), near-coastal means voyages within the sea area defined in Merchant Shipping Notice MSN 1861 (MCA-defined near-coastal waters including UK coastal waters, and areas agreed with specific flag states). Limitations: (1) The certificate is NOT valid for unlimited oceans voyages; (2) NOT valid on ships 500 GT or above; (3) The holder cannot act as OOW on international voyages beyond the near-coastal limit without holding STCW II/1 (OOW Unlimited); (4) Near-coastal OOW in STCW covers the STCW II/3 competencies which are the same functional areas as II/1 but assessed at the operational level appropriate to near-coastal operations and vessels under 500 GT. STCW Chapter II Regulation II/3 establishes the mandatory minimum requirements for OOW on ships of less than 500 GT. The near-coastal restriction is defined by each flag state — the MCA defines UK near-coastal as specified in MSN 1861 and related Merchant Shipping Notices. The competency framework for II/3 covers the same seven functions as II/1 (Navigation, Cargo, Stability, Machinery, Electrical, Maintenance, Watchkeeping) but at a level appropriate to smaller vessels on near-coastal voyages. A candidate must be aware: the MCA sometimes accepts STCW II/3 alongside practical endorsements for certain vessel types (fishing, passenger ferries, workboats). The OOW NC holder who works on a 300 GT coastal ferry in UK waters is correctly certificated; the same person who signs as OOW on a 400 GT vessel making a transatlantic passage is operating outside their certificate's geographic scope.

Question 1

You are OOW alone on the bridge of a 180 GT coastal passenger vessel with 42 passengers, 3nm offshore in moderate weather. A passenger reports smoke coming from the engine room. You cannot immediately reach the master. Describe your immediate actions.

Accepted Answer

Immediate actions with smoke in engine room: (1) Sound the general alarm — all passengers and crew are alerted; (2) Secure engine room ventilation — close all engine room vents and flaps to cut the air supply to any fire; (3) Do NOT enter the engine room alone — fire in a confined space requires BA; (4) Assess remotely — check engine room remotely if possible (CCTV, temperature monitors); (5) Alert MRCC/coastguard — Pan-Pan on VHF Ch 16 — "Pan Pan Pan Pan Pan Pan, [vessel name], position 3nm [bearing] of [landmark], smoke from engine room, 42 passengers on board, standing by for further action"; (6) Steer towards the nearest safe landing place at best speed (engines may still be running); (7) Continue attempting to reach the master; (8) Prepare to muster passengers to muster stations and brief liferaft deployment; (9) Prepare fire hose for boundary cooling. Emergency response on a small passenger vessel with limited crew requires the OOW to act immediately and prioritise correctly. The general alarm: sounding the alarm does not mean abandonment — it brings the crew to their emergency stations and gives the master the clearest possible alert that there is an emergency. Alerting the coastguard with a Pan-Pan (urgency signal, not Mayday): with 42 passengers and smoke in the engine room 3nm offshore, the potential for rapid escalation means MRCC must be informed early. A Pan-Pan can be downgraded; a Mayday called too late cannot undo the delay. Engine room ventilation: cutting ventilation is the single most effective early action in an engine room fire — it removes the oxygen supply and typically causes a fire to self-extinguish. Do not open the engine room hatch: opening the hatch in a compartment fire introduces oxygen and may cause a backdraft (fire ball). UK MCA guidance: MGN 515 (Fire on board passenger vessels) and the MCA's passenger vessel framework require operators to have documented emergency procedures. At OOW NC level on a passenger vessel, the examiner expects understanding of the muster/emergency drill system and the role of the OOW as the first responder.

Question 2

You hold an OOW < 500 GT Near-Coastal certificate. Your examiner asks you to describe what this certificate permits you to do and what it does NOT allow.

Accepted Answer

STCW Regulation II/3 OOW Near-Coastal certificate permits: watchkeeping officer duties on ships of less than 500 GT engaged on near-coastal voyages only. Near-coastal: defined by the flag state — in the UK (MCA), near-coastal means voyages within the sea area defined in Merchant Shipping Notice MSN 1861 (MCA-defined near-coastal waters including UK coastal waters, and areas agreed with specific flag states). Limitations: (1) The certificate is NOT valid for unlimited oceans voyages; (2) NOT valid on ships 500 GT or above; (3) The holder cannot act as OOW on international voyages beyond the near-coastal limit without holding STCW II/1 (OOW Unlimited); (4) Near-coastal OOW in STCW covers the STCW II/3 competencies which are the same functional areas as II/1 but assessed at the operational level appropriate to near-coastal operations and vessels under 500 GT. STCW Chapter II Regulation II/3 establishes the mandatory minimum requirements for OOW on ships of less than 500 GT. The near-coastal restriction is defined by each flag state — the MCA defines UK near-coastal as specified in MSN 1861 and related Merchant Shipping Notices. The competency framework for II/3 covers the same seven functions as II/1 (Navigation, Cargo, Stability, Machinery, Electrical, Maintenance, Watchkeeping) but at a level appropriate to smaller vessels on near-coastal voyages. A candidate must be aware: the MCA sometimes accepts STCW II/3 alongside practical endorsements for certain vessel types (fishing, passenger ferries, workboats). The OOW NC holder who works on a 300 GT coastal ferry in UK waters is correctly certificated; the same person who signs as OOW on a 400 GT vessel making a transatlantic passage is operating outside their certificate's geographic scope.

Question 3

You are OOW on a 280 GT passenger ferry making a coastal passage through an area with strong tidal streams of up to 3.5 knots. Your vessel's speed is 9 knots. Explain how you plan for the tidal stream effect.

Accepted Answer

Tidal stream planning: (1) Extract tidal stream data from the relevant tidal stream atlas or chart tables — timing referenced to HW at the nearest standard port; (2) Calculate the tidal stream vectors for each hour of the passage (direction and rate vary through the tidal cycle); (3) Vector triangle method: plot course to steer (CTS) to achieve the desired track made good — add own ship speed vector and tidal vector to calculate the heading required to maintain the track; (4) At 3.5 knots tidal stream vs 9 knots own speed, the cross-tide component at 90° would require approximately 23° of course correction; (5) Calculate ETAs using speed made good along track (not ship speed); (6) Identify timing of fair vs foul tide — plan departure to favour the fair tide for the main channel crossing; (7) Check for minimum depth at tidal gates — arrive at the gate when sufficient water depth exists. Tidal stream planning is a core near-coastal navigation competency. The vector triangle: the navigator must draw (or calculate) three vectors — the water track (direction and speed of the ship through the water), the tidal vector (direction and rate of tidal stream), and the resultant ground track (the actual path made good over the seabed). To maintain a specific ground track, the ship's heading must be adjusted to compensate for the tidal set. The correction formula: if tidal stream is perpendicular to the track at 3.5 knots and own speed is 9 knots, sin(correction angle) = tidal component / own speed = 3.5/9 = 0.389, correction ≈ 23°. At near-coastal OOW level, the examiner expects: (a) knowledge of tidal stream atlases and use of interpolation between hourly vectors; (b) understanding of spring/neap tidal differences; (c) awareness of "tidal gates" — points in the route where passage is only possible at certain states of tide due to depth or current strength. UK examples: Portland Race, Alderney Race, Pentland Firth — areas where strong tidal streams create dangerous conditions for small vessels.