Man Overboard (MOB): The Recovery Manoeuvre

Facing a man overboard, the first three actions are always the same, in order: raise the alarm and keep eyes on the person, throw buoyancy immediately, and bring the boat back to the point with a return manoeuvre such as the quick-stop or the Williamson turn. Recovery on board is the last phase, and it must be prepared long before you ever need it, because lifting a wet, exhausted person out of the water is by a wide margin the hardest part of the sequence. Everything in the first thirty seconds decides whether the rest goes smoothly, so speed and clear role assignment matter more than perfect technique. A crew that has rehearsed the drill responds with ordered actions instead of panic. This guide walks through the full procedure step by step, from the shout to the moment the casualty is safely back in the cockpit, and explains why each choice matters so you can adapt it to your own boat and crew.

The first seconds: what to do immediately

The opening moments of a man overboard event are chaotic by nature, and the whole point of a fixed procedure is to remove decision-making when adrenaline is highest. Four things must happen almost simultaneously, and on a fully crewed boat they should be distributed among different people so that nothing is dropped. Below are those immediate actions, in the order of priority you should internalise before you leave the dock.

Raise the alarm and keep eyes on the casualty

Shout "Man overboard!" loudly enough that the entire crew hears it, because everyone needs to switch instantly into emergency mode. The single most important task is assigning a dedicated spotter whose only job is to point at the person with an outstretched arm and never, under any circumstances, look away. A human head in the water is astonishingly small and disappears behind the swell within a handful of seconds, so once visual contact is lost it is extraordinarily difficult to regain. The spotter does not touch a line, does not help with the sails, and does not answer questions beyond confirming the bearing; their entire value lies in continuity of sight. If the boat is large enough, appoint a second spotter on the opposite side so a change of course never breaks the visual chain.

Throw buoyancy and mark the position

The instant the alarm is raised, someone must throw flotation toward the person, and it does not need to be perfectly placed to be useful. A horseshoe buoy, a danbuoy with a light, a lifesling, or even seat cushions all serve two purposes at once: they give the casualty something to hold and they mark the spot on the water so the spotter keeps a reference even if the person is briefly hidden. Throwing generously beats throwing accurately, because a trail of floating objects between the boat and the casualty creates a line the helmsman can steer back along. At the same time, press the MOB button on the GPS or chartplotter to log the position, and if the situation is serious, broadcast a DSC distress alert and a Mayday on VHF channel 16. These electronic and radio steps do not replace the spotter; they back them up, because a logged waypoint drifts differently from a body and should never be the sole return reference.

Share the workload, especially shorthanded

All of these actions overlap and compete for hands, which is exactly why crew numbers change the difficulty so dramatically. With a full watch on deck you can assign one person to spot, one to throw, one to hit the MOB button and work the radio, and one to handle the boat. With two people aboard, and even more so alone, one person must combine roles, and that is where dedicated precautions and disciplined habits become life-saving. We cover this in depth in our solo sailing guide, but the headline is simple: shorthanded sailors must stay on board in the first place, because a self-recovery from the water is brutally hard and often impossible. Whoever is at the helm in a reduced crew has to spot, steer, and prepare the recovery gear at once, so anything that can be pre-rigged should be.

Bringing the boat back to the point

Once the alarm is raised and buoyancy is in the water, the boat has to be turned around and driven back to the casualty without losing sight of them or sailing past. There are two classic return manoeuvres in the sailing literature, and neither is universally correct; the right choice depends on the point of sail at the moment of the fall, the visibility, the sea state, and how confident and numerous the crew is. Both manoeuvres are worth practising in calm conditions with a fender standing in for the casualty, so that muscle memory takes over when it counts. What follows is how each works and when it earns its place.

The quick-stop

The quick-stop is the rapid return manoeuvre par excellence, and it is favoured precisely because it keeps the boat close to the point of the fall. You luff up immediately while keeping the sails sheeted in, then tack through the wind without touching the jib sheets so the headsail backs and slows the boat, and finally you bear away and come back up toward the person on a close reach or close-hauled. Because the boat never sails far from where the casualty entered the water, the return is fast and the spotter rarely loses sight of them. It works beautifully on responsive, well-balanced boats with a crew that is quick on the winches and comfortable tacking without hesitation. Its main limitation is that it demands prompt, coordinated handling, and it can be untidy on a heavy or short-handed boat where the tack stalls or the sails flog uncontrollably.

The Williamson turn

The Williamson turn is designed to bring the boat back exactly onto the reciprocal of its original course, which makes it the tool of choice in poor visibility or when the person has already fallen well astern. You steer roughly sixty degrees to one side of your original heading, then put the helm hard over the other way and hold it until the boat swings all the way round onto the reciprocal course, which sends you back down your own wake toward the casualty. Because it retraces the actual track rather than estimating a new one, it is extremely precise at finding a spot you can no longer see, and it is the manoeuvre most often taught for power vessels and larger yachts under engine. The trade-off is time: the Williamson takes the boat away from the fall before it brings you back, so it is slower and covers more water than the quick-stop. In darkness, fog, or when the alarm was delayed and the casualty is already distant, that precision is usually worth the extra seconds.

The final approach

Turning the boat around is only half the job; the approach in the last few boat-lengths is where good intentions are most easily undone. The goal is to arrive under full control, slowly, and to stop the boat in a position where wind and drift carry you gently toward the casualty rather than over them. Getting the geometry right protects the person in the water from the single greatest danger of the whole event, which is being struck by the hull, the keel, or the propeller of the very boat trying to save them.

Approach angle and stopping the boat

Approach the person from downwind so that you finish heading into the wind, or with the wind just on the quarter, because that lets you control your speed by easing or spilling the sails at will. The aim is to stop the boat with the casualty just to leeward, close alongside amidships or slightly forward, so that the hull drifts down toward them under the last of its momentum rather than being steered onto them. Never let the boat pass to windward of the person, where it can be blown down on top of them, and never approach so fast that you cannot stop in the available distance. This slow, deliberate style of boat handling in tight quarters is a skill in its own right, closely related to the control you need when you pick up a mooring buoy solo, and practising one sharpens the other. As you close the final metres, keep the engine out of gear or switched off entirely once the casualty is near the stern, because a turning propeller is lethal to a person in the water.

Making first contact

While the boat is still closing, someone should be preparing the physical link between vessel and casualty, because the seconds after you arrive are not the moment to start hunting for a line. Have a floating line with a bowline loop, a lifesling, or a hooking device ready to pass or throw the instant you are within reach. The person in the water may be cold, shocked, or too exhausted to grab and hold anything precisely, so a large loop they can get an arm through is far better than a thin end they must grip. Aim to establish contact on the first pass; a missed approach forces you to circle and repeat the entire return manoeuvre, and every extra minute in cold water degrades the casualty's ability to help themselves. Once you have a hand or a line on them, the priority immediately shifts from steering the boat to keeping the person attached and beginning the lift.

Recovery on board: the hardest phase

Even with the boat stopped and the casualty alongside, getting a person out of the water and over the rail is the most physically demanding part of the whole procedure, and it is the phase most often underestimated. A soaked adult in foul-weather gear can effectively weigh well over a hundred kilograms once you factor in the water in their clothing, and the freeboard of a modern yacht turns a simple arm-lift into an impossibility after the crew is already tired from the manoeuvre. This is why the recovery system must be planned, stowed, and rehearsed in advance rather than improvised at the worst possible moment. The four elements below form the backbone of a workable plan.

Secure the casualty before anything else

The very first thing to do once you reach the person is to connect them physically to the boat with a line or a lifesling, so that a wave or a gust cannot drift them out of reach again while you set up the lift. It is a natural mistake to rush straight to hauling, but a casualty who breaks free during the hoist and floats astern can be lost entirely, undoing everything you have achieved. A secure attachment also lets the crew work with both hands and reposition the boat if needed without the constant fear of losing contact. Only once the person is reliably tethered to the boat should attention move to the mechanics of getting them up and over the rail.

Rig a proper lifting point

Human muscle alone will almost never lift a waterlogged adult up a metre or more of topsides, so you need mechanical advantage, and that means a halyard or a tackle led to a winch. A free halyard shackled to the lifting strop, or a dedicated purchase such as a lifesling-and-block system, lets you grind the casualty up the side of the boat using the power of a self-tailing winch. Fumbling with tangled lines and mismatched blocks in these conditions costs time you do not have, which is exactly the problem a ready-to-use rigging kit like Jake is built to solve, keeping your recovery line, blocks, and leads organised and instantly deployable instead of buried in a locker. Set the lifting point up before the season starts, mark it, and make sure every regular crew member knows where it lives and how it rigs. When the lift is pre-planned, one competent person can recover another single-handed, whereas an unplanned lift can defeat an entire crew.

Power, handles, and reach

Hoisting takes real power, and the humble winch handle is the component most often missing when it is suddenly needed, so keep a dedicated handle clipped within arm's reach of the recovery winch at all times. A telescopic boat hook is also invaluable for reaching a drifting casualty or snagging a trailing line before they come alongside, extending your grasp by a couple of critical metres. Before the lift begins, take a moment to confirm the winch is clear, the handle is in hand, and the line runs fair through its leads without a riding turn waiting to jam under load. Small failures of preparation, a missing handle or a fouled lead, are what turn a difficult recovery into an impossible one, so the answer is always to reduce the number of things you must find or fix under pressure.

Recover horizontally when you can

After a long immersion in cold water there is a real physiological reason to lift the casualty in a horizontal position rather than upright whenever it is practical. Prolonged cold-water immersion causes blood to pool in the core, and hauling a hypothermic person vertically can trigger a sudden drop in blood pressure known as circum-rescue collapse, which can be dangerous or even fatal at the moment of rescue. A lifesling used under the arms and behind the back, or a dedicated recovery strop, helps keep the body more level as it comes up the side. This refinement matters most in cold seas and after the person has been in the water for many minutes; in warm water and a quick recovery it is less critical, but building the habit costs nothing and can save a life when conditions are severe.

Table: quick-stop versus Williamson at a glance

The two return manoeuvres suit different situations, and it helps to see their trade-offs side by side rather than as blocks of prose. Use the comparison below as a quick mental checklist in the moment, but remember that both should be practised in calm conditions so the decision itself takes no time when it matters. The right answer is whichever one your crew can execute cleanly with the visibility and sea state you actually have.

Aspect	Quick-stop	Williamson turn
Return speed	Very fast	Slower
Distance from the point	Stays close to the fall	Moves away, then returns
Track precision	Good with a ready crew	Very high, retraces the wake
Crew demand	Quick, coordinated handling	Simple to steer, forgiving
Ideal when	Person still near and visible	Poor visibility or person far off

Prevention: the best manoeuvre is not falling

No recovery manoeuvre, however well drilled, is anywhere near as reliable as simply staying on board, and the sober truth is that a person who goes over the side in rough conditions may not be recovered at all. Prevention is therefore the real heart of man-overboard safety, and it costs far less effort than any rescue. Rig jacklines running fore and aft along the deck so the crew can clip on before they leave the cockpit, and insist on a harness and tether being worn and clipped whenever there is a seaway, whenever it is dark, and whenever anyone goes forward. Sail conservatively when the wind is gusting, reef early, and move around the deck with one hand for the boat and one for yourself, keeping your centre of gravity low. Alongside all of this, practise the full MOB drill periodically with a rested, unhurried crew, so that when the real event arrives the sequence of shout, spot, throw, return, and recover runs on trained reflex rather than frightened improvisation.

Frequently asked questions

Quick-stop or Williamson: which should I choose?

If the person is still near the boat and clearly visible, the quick-stop is the faster choice because it keeps you close to the point of the fall and returns you in the shortest time. In poor visibility, at night, or when the casualty has already fallen well astern, the Williamson turn is better because it precisely retraces the reciprocal course down your own wake to a spot you may no longer be able to see. Beyond the conditions, factor in your boat's handling and your crew: a heavy or short-handed boat may struggle to execute a crisp quick-stop, making the more forgiving Williamson the safer bet. The best answer is the manoeuvre your particular crew can perform cleanly, which is precisely why both are worth rehearsing in calm water.

Why is the spotter's role so important?

A person in the water becomes almost invisible within seconds, because a head and shoulders sit very low and vanish behind even modest waves. The moment visual contact is lost, the search area expands rapidly as the casualty and the boat drift on different vectors, and finding them again can take far longer than anyone expects. A dedicated spotter who points a straight arm at the casualty and never looks away preserves that fragile visual link through every turn and tack. Their contribution feels passive, but it is frequently the single factor that makes recovery possible at all, which is why the role is assigned first and protected from every other distraction.

Should I recover under engine or under sail?

It depends on the conditions, the boat, and the crew's experience, and there is no single right answer. The engine gives precise control of speed and direction, which is a real advantage in the tight geometry of the final approach, but it introduces the serious hazard of the propeller, so it must be taken out of gear or switched off entirely as soon as the casualty is close to the boat. Recovering under sail avoids the propeller risk completely, but it demands more skill to control speed and stop the boat in exactly the right place using the sails alone. Many crews use the engine to reposition quickly and then kill it for the last approach, combining the control of one method with the safety of the other.

How do I hoist a person aboard on my own?

Single-handed recovery is possible but only if the system is prepared in advance, because raw arm strength will never lift a waterlogged adult up the topsides. First attach the person firmly to the boat with a line or lifesling so they cannot drift away while you set up, then rig a halyard or a purchase led to a self-tailing winch to do the actual lifting. A pre-organised set of line, blocks, and leads is what makes this feasible for one person, which is exactly why keeping that gear ready rather than scattered in a locker is so important. Practise the lift with a heavy fender or a willing volunteer in calm water so you know your rigging works before you ever have to trust it for real.

What role does the GPS MOB button actually play?

Pressing the MOB button on your GPS or chartplotter instantly logs the boat's position at the moment of the fall, giving you a fixed waypoint to steer back toward and a running range and bearing as you manoeuvre. It is a valuable backup, particularly at night or in poor visibility when the spotter's job is hardest, and the same action often triggers a distress alert on a connected DSC radio. What it is not, however, is a substitute for keeping eyes on the person: the logged waypoint marks where the casualty entered the water, but the casualty themselves drifts with wind and current away from that fixed point. Use the electronics to support the spotter and to coordinate any external rescue, never as your primary means of relocating the person.

How often should we practise the man-overboard drill?

The honest answer is more often than most crews do, because the skills involved decay quickly and the manoeuvre is only useful if it is close to automatic. A sensible rhythm is to run at least one full drill at the start of each season and to repeat it whenever new crew join or the boat's rig or equipment changes. Practise in a range of conditions rather than only on flat, sunny days, since the real event is far more likely to happen in wind, chop, or darkness when everything is harder. Rotate roles so that no single person is the only one who can spot, steer, or work the recovery gear, and treat every drill as a chance to refine where the equipment lives and how fast you can deploy it.