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Old 18 May 2013, 05:00   #271
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I don't. Bad idea to kill the engine if at sea and swapping helmsman.
I suspect that MAIB are making the point that people can be ejected from a boat at low speed in tickover or even from stationary in neutral, if someone falls on the throttle. Some new ribs i helm don't have any interlock on the throttle, so it would be really easy to knock it into full ahead or full astern accidentally from neutral when swapping drivers.

I personally would not have a problem with either killing the engine, or removing the cord from my leg momentarily while swapping drivers. Both methods have a risk factor involved with them and it's a case of picking the lowest risk method for the given situation (does the throttle have an interlock, is the engine reliable, is a passenger likely to open the throttle during swap over)

The main message is wear the killcord if the engine is running whenever possible. It is just as important when doing low speed manoeuvres as at planning speeds.
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Old 18 May 2013, 05:27   #272
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I see no need to reinvent the KC whatsoever. Those that fail to use one, may also drive their kids around with 5 pints onboard. Who knows? Irresponsible a/holes will always exist in society, no end of legislation or reinvention will mitigate for this.
If any of my kids are helming the 7m (ages 17-21), I sit beside them with the KC attached to me. I reckon that my experience will tell me when yanking the cord is required. If the helm should get chucked out, I pull the cord. If we both go, the cord gets pulled. If I go, the cord comes with me, the Etec will restart.
My problem with wireless or electronic variants would be, if a non MOB situation should occur, which required immediate shutting down of the engine, pulling the KC is seconds quicker than turning off the ignition. An electronic option may not allow this.
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Old 18 May 2013, 05:49   #273
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Quote:
Originally Posted by NSS View Post
I've been giving this some thought and I'd like to float (pardon the pun) an idea for comments/opinions.

My first thought was for something along the lines of a 'dead man's brake' and so I got to thinking about those sort of applications. The train analogy, where the driver has to maintain pressure on the throttle (as I understand it) is not an option, as discussed earlier with the idea of a sprung loaded throttle. But a far more common arrangement may be viable.

If you have an electric lawnmower then I suspect you'll already be familiar with it.

In the case of my Bosch, before the motor will start (on a push button), you have to pull back the bar that runs parallel to the handle. As soon as you let go of that pull bar the motor stops.

My idea would be to have a secondary 'ring' behind the steering wheel that has to be pulled back against the wheel before the engine will start. As soon as that ring is released, the engine would stop. And to stop anyone from simply tie-wrapping the ring to the wheel, the 'trip' action of the ring being drawn back would have to take place within a defined time (say 3 seconds) before the starter circuit is activated.

I don't know about anyone else, but I can't see why the helm would need to let go of the wheel (and hence the ring) under any normal conditions.

If this is a crap idea then I'm happy to be shot down. If not, then how do I patent it?
Umm, crap idea! just cant see this working, Education, education and wear your KC!!
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Old 18 May 2013, 06:33   #274
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I don't. Bad idea to kill the engine if at sea and swapping helmsman.
Bad idea to swap helm at sea if the conditions and location are to dangerous to kill the engine!

Double kill cords as an off the shelf part might be a useful option? PB2 courses would like them, anyone teaching juniors needs them and actually a load of others might want them too
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Old 18 May 2013, 07:35   #275
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Quote:
Originally Posted by Mollers View Post
I see no need to reinvent the KC whatsoever. Those that fail to use one, may also drive their kids around with 5 pints onboard. Who knows? Irresponsible a/holes will always exist in society, no end of legislation or reinvention will mitigate for this.
If any of my kids are helming the 7m (ages 17-21), I sit beside them with the KC attached to me. I reckon that my experience will tell me when yanking the cord is required. If the helm should get chucked out, I pull the cord. If we both go, the cord gets pulled. If I go, the cord comes with me, the Etec will restart.
My problem with wireless or electronic variants would be, if a non MOB situation should occur, which required immediate shutting down of the engine, pulling the KC is seconds quicker than turning off the ignition. An electronic option may not allow this.
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Old 18 May 2013, 08:15   #276
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Double kill cords as an off the shelf part might be a useful option? PB2 courses would like them, anyone teaching juniors needs them and actually a load of others might want them too
Never really thought of this before, but you could clip a second KC to the plastic clip at the business end of the KC so if helm or navigator goes in engine stops (subject to the location of the KC switch, mine centre console so it would work) might have a look at doing this........
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Old 18 May 2013, 08:15   #277
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Currently working near Padstow. It's thought that, the Wife was at the wheel with youngest on her lap turning figures of eight.
Apparently, they'd only owned the boat for two weeks.
Listening to local tittle-tattle and spreading rumour on here really isn't helpful or respectful on such a sad and serious matter.
I suggest you read others peoples posts and head their advice to wait for the facts to be published in due course.
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Old 18 May 2013, 08:20   #278
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Never really thought of this before, but you could clip a second KC to the plastic clip at the business end of the KC so if helm or navigator goes in engine stops (subject to the location of the KC switch, mine centre console so it would work) might have a look at doing this........
Can't see why it wouldn't work on a Merc kill switch.

Not sure about the forked type though. I suspect you might have to do a bit of subtle modification to the forks to stop them sliding over each other , assuming the button will pull out far enough.

It's definitely worth a go. I may do the same.
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Old 18 May 2013, 08:41   #279
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Can't see why it wouldn't work on a Merc kill switch.

Not sure about the forked type though. I suspect you might have to do a bit of subtle modification to the forks to stop them sliding over each other , assuming the button will pull out far enough.

It's definitely worth a go. I may do the same.
this is how the rya recommend it on children's courses: http://www.rya.org.uk/sitecollection...%20courses.pdf

Am I the only one who raised an eyebrow at Mollers suggestion the HE wears the kill cord when his 21yr old is driving? I am assuming that his offspring are experienced in handing the boat and trusted to come and pick him up - so why not make THEM wear the KC when helming? I can't see any advantage to "dad" wearing the KC and not the helm IF the helm knows what they are doing.
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Old 18 May 2013, 09:05   #280
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this is how the rya recommend it on children's courses: http://www.rya.org.uk/sitecollection...%20courses.pdf
Thanks Polly perfect solution for swapping helms without stopping the engine and ensures at least one person connected to the kill switch all the time.
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