Man Overboard Systems

A person overboard can disappear from sight astonishingly quickly, especially at night or in rough water. Technology can improve detection and location, but recovery still depends on immediate action by the people onboard. The best system combines prevention, personal equipment, electronic alerts and a practiced maneuver for getting the person back aboard.

Prevention starts with movement on deck

Handrails, jacklines, harnesses and sensible footwear reduce the chance of falling. At night or in rough conditions, clipping on can be far more effective than relying on a recovery system afterward.

Raise the alarm immediately

Anyone who sees a person fall should shout, point continuously and activate the vessel’s MOB function or alarm. Losing visual contact is one of the biggest risks.

Personal beacons can broadcast position

AIS MOB devices can transmit a local alert to compatible receivers, while PLBs use satellite search-and-rescue systems. Some lifejackets can be fitted with lights and automatic beacons.

The yacht must return safely

The helmsman follows a practiced recovery maneuver appropriate to the vessel and conditions. Large motor yachts, sailing yachts and catamarans handle differently. Propellers create a serious hazard during final approach.

Getting the person aboard is difficult

A conscious swimmer may climb a platform; an injured or hypothermic person may need lifting equipment. Ladders, recovery slings and low freeboard areas should be planned in advance.

Cold water shortens the timeline

Hypothermia and cold shock can impair breathing and movement quickly. Lifejackets, lights and fast recovery matter even when the coastline looks close.

Practice with a dummy

A drill reveals whether the crew can actually see the casualty, stop the yacht, launch recovery gear and communicate. Practicing in controlled conditions is far better than learning during the real event.

Night recovery needs more tools

At night, a light on the casualty’s lifejacket can be as important as the beacon. Searchlights, radar and thermal cameras may help on larger yachts, but none guarantees detection in waves. The watchkeeper should immediately mark the position and avoid taking eyes off the person. Every extra minute increases the search area.

Recovery can be harder than locating

A yacht with high freeboard may spot the casualty quickly and still struggle to lift them. Hypothermic or unconscious people cannot climb ladders. Recovery systems should work with the yacht’s actual deck height and crew strength. Practice rigging a sling or tackle before a trip. The best drill tests the full sequence from alarm to a weighted dummy safely back on deck, not only pressing the MOB button on the plotter.

The first maneuver depends on circumstances

There is no one recovery turn that fits every yacht and event. A sailing yacht may need to control sails, a high-speed motor yacht must reduce speed immediately and a vessel close to traffic may have limited room. Training should cover the actual boat. The first priorities remain universal: raise the alarm, keep pointing, mark the position and deploy flotation if available. Someone should make a distress or urgency call when outside assistance may be needed. At night, throw a lighted marker even if the casualty already has one; two references improve the search. Once close, approach so wind and waves help and do not push the yacht over the person. Stop propellers when safe before final recovery. These decisions are difficult to learn from reading alone, which is why practical drills and professional seamanship training are especially valuable for crews heading offshore.

Planning a yachting trip?

Compare flights and travel options for the marina or cruising area you want to explore.

Search flights