|Event||ALERT2 Man-Overboard Alarm System||AIS|
|Fall Overboard (event)||Upon immersion the MOB wonders what the heck happened.||Upon immersion the MOB wonders what the heck happened.|
|MOB comes up for air (+10 sec.)||Luckily MOB is coherent and now above the waves. MOB looking at surroundings trying to get barrings. At this point the ALERT2 is already transmitting to ALERT2 Receiver.||Luckily MOB is alert and now above the waves. MOB looking at surroundings trying to get barrings. Hopefully not panicked, MOB needs to remember how to activate AIS.|
|What is happening on vessel? (+20 sec.)||ALERT2 Receiver howls and crew take action to search for MOB. If the boat has ALERT2 Receiver wired for engine kill, the boat has stopped moving.||If MOB is successful, AIS is turned on. If first attempt fails, other manual activation may be required. Once activated AIS searches for GPS coordinates.|
|Search & Rescue (+30 sec.)||Crew on vessel are looking for a visual of MOB. Once sighted, a crew member will lock-on to MOB as others begin rescue.||Once GPS coordinates are located, the transmission to AIS-enabled receiver receives broadcast. Furthermore, the AIS icon may appear on the chart plotter as a vessel, not a MOB – so crew may still not be aware of person overboard.|
|1 minute has passed||Vessel traveling 6 knots has separated 600 feet from MOB! ALERT2 MOB has either been sighted or ALERT2 Portable Direction Finder is able to home in on signal.||Because of lag-time, MOB will probably no longer be in sight. All rescue will be dependent on following GPS coordinates.|
|3 minutes have passed||With transmission of alarm automatic, evasive action has commenced and rescue is well on way.||In reality rescue is probably just beginning.|
- 30% of all marine fatalities on United States Coastal Waters were from a fall overboard*
- #1 reason for a fall overboard was trip/slip, #2 reason was lost balance, and #3 is unknown*
- Most fatalities could have been prevented if two actions occurred: 1. victim wore a Personal Flotation Device and 2. Crew were aware the victim fell overboard
The ruling, “Vessel Requirements for Notices of Arrival and Departure and Automatic Identification System” becomes effective March 2. However, you have until March 1, 2016 to install the AIS.
AIS or Automatic Identification System is now required on all vessels 65 feet or longer. Primarily for the benefit of being able to identify boats in the area, AIS has also been touted as a life-saving technology with fall-overboard (FOB) awareness and location of person who fell overboard using GPS technology embedded in the AIS device. However, the truth is that AIS is not the best solution for FOB awareness or for that matter, the location of the person who fell overboard.