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Old 17 May 2013, 18:42   #41
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Agreed, but you don't operate all of those while being subjected to a salt shower and if the batteries fail you don't have to change them while being thrown around.
My smoke alarms emit a warning tone when the battery is getting low on power, giving ample opportunity to replace before they fail.
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Old 17 May 2013, 18:53   #42
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That'd be a hell of a loud warning tone to be heard over the wind/rain/outboard.

The point is, while your idea works in theory, in practice it'd be enough of a pain in the neck that people would just remove it.
The muppets who won't wear a lifejacket/killcord wouldn't pay to have it retrofitted -they don't think they need a killcord.

In order to get a motor manufacturer to supply it as OEM, they'd have to supply a standard helm unit or wheel with a new outboard.
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Old 17 May 2013, 19:05   #43
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If I were to spec an alternative to a killcord, or improve the current system I'd be looking at this:-
  • No harder to use than a killcord
  • As few as possible potential fail points
  • Must work immediately-no delay.
  • Must not impair helmsman's operation of controls in any way
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Old 18 May 2013, 04:10   #44
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My old seadoo jet ski had a KC that had to be inserted just before you started it, if you did not start the motor within around 10 seconds you had to remove and refit the KC..... This way you cannot just insert and forget the KC...... You are touching the KC every time you start, might just remind you to clip it on....
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Old 18 May 2013, 08:16   #45
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I think people are trying to reinvent the wheel here, kill cords work well you just need to use them!
Simple in design & reliable in the harsh environment they operate in, you just have to remember to us them
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Old 18 May 2013, 13:44   #46
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I'm surprised quite how mechanical and how easy it is to override the kill cord or how it lacks the ability to do its job in the event of a fault.

If I was inventing a kill cord it would be very simple to existing kill cord but would contain a simple electrical wire circuit that looped the whole length of the cord and back which when broken (either by disconnection or cord failure) would prevent the engine from either raising above certain (idle) revs or being put in gear.

If kill cord circuit was broken, either by pulling out from connector or it breaking due to duff chord, then best engine would do was idle speed, or a speed set within parameters of engine, but only if engine was no more than idling. If engine was above idle speed wheel cord circuit was broken, then engine would cut.

To prevent kill cord being permanently left in place, it would be impossible to start engine after engine had been switched off for a period of time without the cord first being disconnected/reconnected.

This simple design would allow an engine to be started and left at idle to warm; would allow fishermen to fish at slow speed without being tethered to engine; would mean that an engine would not need to be stopped when changing helm but would enforce engine being put in idle/neutral; would prevent kill cord from being permanently tethered; would make every engine use above idle speed require a conscious decision to actively bypass use of kill cord; would mean that in event a kill cord failed it would still cut out engine.
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Old 18 May 2013, 13:58   #47
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To prevent kill cord being permanently left in place, it would be impossible to start engine after engine had been switched off for a period of time without the cord first being disconnected/reconnected.
Which goes back to ShinyShoe's suggestion that it needs to be taken off and refitted for the engine to start, forcing you to have to handle it
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Old 18 May 2013, 14:22   #48
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If I was inventing a kill cord it would be very simple to existing kill cord but would contain a simple electrical wire circuit that looped the whole length of the cord and back
Remind me... ...do you take your boat anywhere where it might get wet? Connection is bound to get wet at some point and then the engine don't start.

Quote:
This simple design would allow an engine to be started and left at idle to warm;
Like the current design does
Quote:
would allow fishermen to fish at slow speed without being tethered to engine;
Never tried to swim after a 'slow speed' powerboat in oilies - but would prefer it stopped if a big fish tugged me over!

Quote:
would mean that an engine would not need to be stopped when changing helm but would enforce engine being put in idle/neutral;
But people will just unclip the leg end?
Quote:
would mean that in event a kill cord failed it would still cut out engine.
Would add a load of micro elecrtonics that might fail and not cut anything out at all.
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Old 18 May 2013, 15:11   #49
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Eh? For goodness sake - if it ain't broken, why fix it? A string and a switch is the most reliable, dependable, sensible way to do it - no electronics to get messed up by water/salt. How people sort out their kill-cords when their kids are learning/driving really isn't the issue (think about driving lessons?!) - so why are we worrying about it?

If the helm goes over the side - the boat needs to stop. Wear a killcord. It's not complicated - unless you're terminally stupid.

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Old 18 May 2013, 15:15   #50
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Eh? For goodness sake - if it ain't broken, why fix it? A string and a switch is the most reliable, dependable, sensible way to do it - no electronics to get messed up by water/salt. How people sort out their kill-cords when their kids are learning/driving really isn't the issue (think about driving lessons?!) - so why are we worrying about it?

If the helm goes over the side - the boat needs to stop. Wear a killcord. It's not complicated - unless you're terminally stupid.

+1
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