M3000-1.4.8

Manoeuvres to launch and recover rescue boats and survival craft

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Why the manoeuvre matters before the equipment does

Launching survival craft or a rescue boat is rarely a pure seamanship problem in isolation — it is the point at which the Master's prior decisions (timing, positioning, crew readiness) either enable a clean launch or compound an emergency. The vessel's aspect, windage, sea state, and machinery status at the moment of launch are all products of choices made in the preceding minutes. Command standard means owning those choices.

The governing principle: put the craft in the lee

For any launch, the fundamental aim is to create a sheltered water surface alongside. The ship's hull acts as a breakwater. The sea side of the vessel exposes the craft and davit falls to wave action; the lee side does not. This single principle drives every subsequent manoeuvre decision.

Survival craft (lifeboat/liferaft): Under the Red Ensign Group Yacht Code (REG YC), yachts must carry liferaft capacity for 100% of persons on each side, or 200% total if the liferafts are readily transferable and launchable from either side. Passenger yachts under 500 GT carrying fewer than 200 persons may apply SOLAS alternative thresholds. For davit-launched craft, position the vessel so the craft's embarkation station is to leeward. This typically means lying with the wind slightly forward of the beam on the opposite side, using engine(s) to hold position if sea room allows. A vessel with a strong windage profile (high freeboard, superstructure) will need earlier counter-helm to prevent lee-bow swing carrying the craft into the hull once waterborne.

Rescue boat: Under REG YC, a yacht of under 500 GT must carry at least one rescue boat; a yacht of 500 GT and over must carry at least one rescue boat on each side, unless the Administration grants an equivalence based on launching capability. Rescue boats are deployed for person-overboard (MOB) recovery as the primary tactical scenario. The Williamson Turn or equivalent brings the vessel back on a reciprocal track; once on approach, the vessel is slowed and positioned to place the casualty to leeward of the rescue boat's launch station. The vessel should be near-stopped and using minimum steerage before launch — prop wash and hull turbulence on the windward quarter can capsize or swamp a rescue boat on entry.

Recovery

Recovery in a seaway is the more demanding evolution. The coxswain must approach from the leeward side and hook on at the moment of minimum relative motion (the slack between wave crests). The Master's role is to hold the ship steady — minimum way, using engine and helm to suppress yaw — for the duration of hoisting. A single-screw vessel may need a brief burst ahead or astern to kill a swing. Communicate a clear abort threshold to the coxswain before they launch: if conditions deteriorate beyond X, return to the vessel and await instructions rather than attempt a hook-on.

What the examiner is really testing

The Master's awareness that the ship must be actively manoeuvred to support the craft, not merely stopped. Judgement calls — when conditions are too severe to use a davit-launched craft and liferafts become the primary option, or when a rescue boat launch would put the crew at greater risk than an alternative MOB recovery — are command-level decisions that belong to this topic.

Practice questions

recallcore

What is the fundamental seamanship principle governing the positioning of a vessel before launching survival craft?

scenariocore

You are in open ocean, wind force 6, swell 3 metres. A crew member has gone overboard from the starboard quarter. Your rescue boat is stowed on the starboard side. Walk me through your manoeuvring decisions from the moment of sighting to the boat returning on board.

oralstretch

The examiner asks: 'In deteriorating conditions at night, how do you decide whether to launch your rescue boat or deploy a liferaft for a man overboard, and what factors drive that command decision?'

scenariostretch

During a man-overboard drill, your coxswain reports that on attempting to hook on for recovery, the rescue boat is surging 2 metres vertically alongside. What do you do as Master?

recallcore

What effect does prop wash and hull turbulence have on a rescue boat being launched from the leeward quarter, and how does the Master mitigate it?

Independent preparatory study aligned to the MCA Master (Yachts less than 3000 GT) examination syllabus (updated June 2026). Not an MCA-approved course and confers no credit toward a Certificate of Competency.