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MOB that shuts down the engines.

Old 03-24-2007, 06:11 PM
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Default MOB that shuts down the engines.

Looking for a unit that will shut down both engines? Looked at the Raymarine unit but will only give a alarm. Need both. Is there any units made to fit my needs? Thanks.
Old 03-24-2007, 07:33 PM
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Default Re: MOB that shuts down the engines.

Recent threads

http://www.thehulltruth.com/forums/t...141308&start=1

http://www.thehulltruth.com/forums/t...141317&start=1


The product:


http://www.powerboatsafety.com/

Old 03-24-2007, 07:41 PM
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Default Re: MOB that shuts down the engines.

Careful

What if your passenger falls overboard . . . you should immediately hit the man overboard button so that you can get back to where they fell in . . . for that you need power

Are you looking for a kill switch in case you fall overboard . . . that is a good idea ONLY if you able to climb back into your boat . . . can ypu climb back into your boat when you are fully dressed and your clothes are soaked?

Good luck in finding a solution that works gor you
Old 03-24-2007, 07:49 PM
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Default RE: MOB that shuts down the engines.

Wear the Lanyards for the kill switch for both engines . Make a loop of both switches and put it to your life vest (you should be wearing one if your fishing alone) .
If you are fishing with friends and one goes over .... the LAST thing you need is for the engines to be dead!!!!!
Old 03-27-2007, 02:44 PM
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Default RE: MOB that shuts down the engines.

Here's a product that does exactly what you want, although all the articles I've seen on this were written about a single engine installation. I would expect it to work in a dual engine installation if correctly wired. It's based on the operator of the boat wearing a small radio controlled remote around his neck. If the operator falls in the water the radio transmission between the remote and the control unit is broken and the control unit immediately shuts off the engine. Once the engine has been shut down the system allows remaining crew members to restart the engine without gaining radio contact between the remote and the control unit, thus allowing the remaining crew to have power to rescue the operator. There are no strings to attach to yourself so you're free to move about the boat.

http://www.aqualiv.se/eng/index.html

One of the Finnish boating magazines tested this product a while back and found it to work exactly as the manufacturer describes. The company is in Sweden and I don't know if they have a representative in US, but you can always e-mail them and find out. I'm thinking of putting one of these on my CC one of these days because I do a lot of fishing solo.
Old 03-27-2007, 03:41 PM
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Default Re: MOB that shuts down the engines.

The latest SW Fisherman magazine has an article about such a device. I do not recall the manufacturer though.

This may be it

Virtual Lifeline
$549 • 888/755-7767 • www.maritechsafety.com
MariTech calls this man overboard system a wireless lanyard. Why? Passengers wear four sensors that, like a kill lanyard, cut off the engine if someone falls overboard. When submerged, the sensors transmit a signal to the 6"-by-4"-by-1'6" ignition control module, which sets off an alarm and shuts the motor. Additional sensors can be purchased separately.
Old 03-27-2007, 04:50 PM
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Default Re: MOB that shuts down the engines.

I looked at Ray's unit at the show.....it does have a 12V switched relay on it too. There are lots of possibilities on how it could be used. They only seem to mention it in their manual on page 5....

http://www.raymarine.com/raymarine/S...87064_3www.pdf
Old 03-27-2007, 06:33 PM
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Default Re: MOB that shuts down the engines.

capnsunshine - 3/27/2007 4:50 PM

I looked at Ray's unit at the show.....it does have a 12V switched relay on it too. There are lots of possibilities on how it could be used.
Great find

Anyone know how the kill switch circuit works (i.e. when you pull on the lanyard & toggle the switch, does it open or close the switch) ?

Old 03-27-2007, 06:42 PM
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Default Re: MOB that shuts down the engines.

There are many inlets here in Florida that if the engines were killed you would not only have a MOB, but a swamped boat.
An alarm is good idea, but if anyone has ever gone out Jupiter, Boynton, or Hillsboro on a windy day you wouldn't want to lose engines at anytime.
Old 03-27-2007, 07:49 PM
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Default Re: MOB that shuts down the engines.

cravenMH - 3/27/2007 6:42 PM

There are many inlets here in Florida that if the engines were killed you would not only have a MOB, but a swamped boat.
An alarm is good idea, but if anyone has ever gone out Jupiter, Boynton, or Hillsboro on a windy day you wouldn't want to lose engines at anytime.
I agree great Idea if you are fishing alone but if a passanger falls over I would want a alarm but not a engine kill device. I would want to go back and retreive the passanger asap. If tha person had a heart attack every second would count if they are in the water....Mark
Old 03-27-2007, 09:55 PM
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Default RE: MOB that shuts down the engines.

I went with the Raymarine system. I liked that it leave's a mob waypoint on a Raymarine chart plotter (in addition to sounding an alarm). On family trips I require my kids to wear the tags at all times (except when swimming or leaving the boat).
Old 03-28-2007, 06:47 PM
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Default Re: MOB that shuts down the engines.

Elusive - 3/27/2007 6:33 PM

capnsunshine - 3/27/2007 4:50 PM

I looked at Ray's unit at the show.....it does have a 12V switched relay on it too. There are lots of possibilities on how it could be used.
Great find

Anyone know how the kill switch circuit works (i.e. when you pull on the lanyard & toggle the switch, does it open or close the switch) ?
On most outboard engines powered by permanent magnet generators (a magneto), the kill switch works by connecting the switch box to ground. This kills the electrical signal to the coil.
Old 04-01-2007, 05:51 PM
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Default RE: MOB that shuts down the engines.

I just got a "New Products" catalog from West Marine that lists exactly such a device at $800 for twins and $700 for singles. I frequently fish alone and am seriously considering one. I do like the price that is listed above much better than West's $800.
Old 04-02-2007, 04:15 PM
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Default RE: MOB that shuts down the engines.

Killing engines if you go overboard while single-handing is a great idea.
Presumably, a MOB situtation is more likely to occur in rough seas- where losing power could be EXTREMELY dangerous for the vessel and any remaining passengers/crew. Wouldn't consider it unless single-handing.

As mentioned in the other posts, wear a PLB - and a handheld VHF if you can while single-handing. If I go over w/ a PLB, at least I know I'll be rescued.

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