The Reality of Man Overboard Incidents

A man overboard (MOB) situation can develop in seconds and escalate into a fatality with alarming speed, even in relatively benign conditions. Cold water shock, exhaustion, and disorientation can incapacitate a swimmer quickly, and a vessel can sail surprising distances from a person in the water before the crew even realizes what has happened.

Preparation — practicing the procedures, assigning crew roles, and having the right equipment instantly accessible — is what separates a successful recovery from a tragedy.

Immediate Actions: The First 60 Seconds

The first minute is critical. The priority is threefold: keep eyes on the casualty, slow the vessel, and alert others.

  1. SHOUT "Man Overboard!" — alert all crew immediately.
  2. Assign a spotter — one crew member does nothing but point at the person in the water and maintains visual contact at all times. They do not help with anything else.
  3. Throw a throwable device — a horseshoe buoy, life ring, or throw bag should be deployed immediately. This gives the casualty something to hold and helps the spotter mark their position.
  4. Press MOB on the chartplotter/GPS — this marks the GPS position at the moment of the incident, invaluable if you lose sight of the person.
  5. Send a DSC distress alert on VHF Channel 16 if you need assistance or if there are only one or two people aboard.

Recovery Maneuvers

There are several accepted MOB recovery maneuvers. The right choice depends on your boat, the sea state, wind strength, and how many crew you have. Practice all of them in calm conditions so they become instinctive.

The Figure-Eight (Reach-Tack-Reach)

Widely taught for sailboats, the figure-eight involves bearing away onto a beam reach, tacking, and returning on a close reach to approach the casualty from downwind. This gives good control in the final approach. However, it requires practice to execute accurately under pressure.

The Quick-Stop Maneuver

Immediately tack without releasing the headsail (the backed sail slows the boat), gybe around, and approach the MOB from downwind. This keeps the boat close to the casualty throughout — reducing the distance traveled and making it easier to maintain visual contact.

Motoring Under Power

In many real-world situations, the engine is the most reliable recovery tool. Drop and furl sails as quickly as possible and motor toward the casualty. Always approach from downwind, stop the engine before the person reaches the propeller, and drift to them.

Getting the Person Back Aboard

Recovery is often the hardest physical part. A hypothermic, exhausted, or injured person cannot help much, and lifting dead weight from the water is extremely difficult. Options include:

  • Swim ladder: If the person is conscious and mobile, a stern or transom ladder is the fastest route.
  • Halyard or block-and-tackle: Rig a halyard to a harness or sling to haul the person vertically.
  • Scoop method: Lower the lifeline stanchion gate and roll the person aboard at deck level — requires crew strength and coordination.
  • Jon buoy or rescue sling: Deploy a rescue sling for the person to step into, then winch them up.

Prevention Is Always the Priority

The best MOB response is the one you never have to use. Best practices for prevention include:

  • Always wear a harness and tether when sailing at night, offshore, or in rough conditions.
  • Clip on before leaving the companionway in challenging conditions.
  • Wear a personal locator beacon (PLB) or integrated AIS MOB device.
  • Ensure jacklines run the full length of the boat and are in good condition.
  • Brief all crew — including guests — on MOB procedures before departure.

Practice Regularly

Throw a fender overboard and run through your MOB drill. Do it at different points of sail, in varying conditions, with different crew combinations. The procedure that feels clumsy the first time will feel natural by the fifth. In a real emergency, that familiarity is what saves lives.