Can you imagine our surprise today as we were testing an ALERT2 Receiver bound for the R/V Thomas G. Thompson (currently in midlife overhaul) when we saw the R/V Thomas G. Thompson from our building. The Thompson is currently undergoing sea trials in Puget Sound. It was a great feeling knowing the product we were testing for use as their Man-Overboard Alarm System was just a mile from our facilities.
Emerald Marine Products announces the release of the ALERT418™ Man-Overboard Transmitter. Made in the USA, the enhanced unit is based on the company’s proven ALERT2 Transmitter, and is compatible with its Man-Overboard alarm system receiver and portable direction finder.
Designed for working mariners, the ALERT418 Man-Overboard Transmitter is smaller and lighter than its predecessor: only 4.25? L x 1.5? W x 1? D and 3.6 oz. For normal working conditions, it’s worn attached to a PFD. A Spray Tight Pouch is available for wet environments.
|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.|
There are a dozen products on the market that are identified as fall-overboard locator beacons. Our product, the ALERT2 Man-Overboard Alarm System™ has two functions that differentiate from the other fall-overboard locator beacons on the market.
For a vessel moving 6 knots, a person who has fallen overboard will drift 100 feet in 10 seconds, 600 feet in 60 seconds. In between that 10 and 60 seconds, even on a clear day, they are no longer visible to the crew on the boat they just fell off of. When time is of the essence, ALERT2 is far superior to the other fall-overboard locator beacons.
- 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