Man Overboard!
I have been on a high technology safety kick at Suite101 with a focus on man overboard devices. Topics comprise man overboard alarms, personal locator beacons (PLB), the MOB Guardian System and engine kill switches There is growing interest in this field and new ideas are arriving everyday. Your own crew situation will dictate the most effective solution available for your vessel. Single-handed sailors have requirements that vary from a boat carrying multiple occupants or crew.Single-handed sailors should consider the use of an engine kill switch or a MOB alarm that has this feature and a PLB. Self rescue is possible if the boat does not run out of reach and a PLB will actively broadcast your position information to search and rescue authorities.
Crewed vessels are well served with using a man overboard alarm system. Operators need to consider the effect of wind and tide on a person in the water with GPS based track-back programs. Carriage of an EPIRB would provide many additional safety benefits to all aboard.
The equipment runs the gamut of radio frequency, global positioning system, and sonar technology that often combines it in single systems.
Man Overboard Alarms use radio frequency or sonar technology to activate an alarm if someone goes over the rail. Some models also provide track-back navigation information to the person in the water and kill the engine.
Personal Locator Beacons (PLB) are the personally worn versions of the emergency position indicating radio beacons (EPIRB) that broadcast a coded radio signal to overhead SARSAT-COSPAS search and rescue satellites on the 406 MHz frequency. Information transmitted by the PLB includes a unique identifier tied to a data base and can also provide GPS coordinates in some models.
MOB Guardian System is a hybrid that takes the best of man overboard alarms, personal locater beacons, and emergency position indicting beacons. These technologies are joined in a holistic system that tracks a ship's position with the Iridium satellite network, providing an active data link to search and rescue authorities and sounds an alarm if there is a man overboard emergency.
Engine Kill Switches do just that. They operate with a mechanical lanyard or a wireless equivalent that shuts down the boat engine if operator is thrown off the boat or has a fall. These devices are important to single-handed sailor safety. Uncontrolled boats can circle back and hit an operator in the water.
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Labels: Boating Safety, Crew Safety, Man Overboard, MOB
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