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Kill Switches

Old 02-01-2007, 01:23 PM
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Bish Wheeler
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Default Kill Switches

Well after being in the hobby for about a billion years and always relying on my ability to kill an engine with the throttle I have decided (now that I have moved to a more cosmopolitan setting) that I really need to install a transmitter controlled kill switch in my planes. I don't have a clue! I have come up with several ideas that I am sure will work, but there must be some sort of simple and common way of doing it.

I would imagine I would run the on/off circuit through a servo actuated switch inside the plane. So my question obviosly is; "What do you use"?

Thanks

Bish
Old 02-01-2007, 03:04 PM
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Rodney
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Default RE: Kill Switches

Glow engine or Gasoline? If gasoline is it magneto or electronic ignition?
Old 02-01-2007, 04:59 PM
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Bish Wheeler
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Default RE: Kill Switches

Magnito and ignition. I have one plane powered with a ST3000 with CH ignition. The rest are gas and either mag or ignition.

Bish

Old 02-01-2007, 05:27 PM
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Geistware
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Default RE: Kill Switches

I would recommend that you have an engine kill with the following priority.
Choke (servo operated)
Throttle (Close throttle all the way to kill engine)
Ignition kill
(kill power on electronic ignition)
(ground coil on magneto ignition)
Old 02-01-2007, 05:35 PM
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Bish Wheeler
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Default RE: Kill Switches

Hmmmmm,

Thanks, but here is what I am looking for. What hardware are you guys using to electrically kill the ignition.
Old 02-01-2007, 07:09 PM
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BillS
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Default RE: Kill Switches

I recently put two Radio Shack slide switches in a magneto ignition gas airplane. Either switch will ground the magneto and kill the engine. One is mounted to the fuselage in a location operated by the person cranking the engine. One is connected by 18’ or so nyrod to a servo operated from the radio.

Bill
Old 02-01-2007, 07:15 PM
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Bish Wheeler
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Default RE: Kill Switches

Thanks Bill, that's kind of what I thought too, but wanted to have some confirmation that it really was that simple and wasn't sure about what switches to use.
Old 02-01-2007, 07:19 PM
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BillS
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Default RE: Kill Switches


ORIGINAL: Bish Wheeler

Thanks Bill, that's kind of what I thought too, but wanted to have some confirmation that it really was that simple and wasn't sure about what switches to use.
The Radio Shack part number was 275-401 for a package of two and cost about $4 for both.

Bill
Old 02-01-2007, 10:31 PM
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Default RE: Kill Switches

I use the RC-100 on all of my gassers
http://rcatsystems.com/electronics/rc100.php

Mike
Old 02-01-2007, 10:36 PM
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Bish Wheeler
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Default RE: Kill Switches

Thanks,

Now that's what I was looking for. I knew I had seen something like that.

Bish
Old 02-02-2007, 07:22 AM
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Default RE: Kill Switches

Actually the RC100 (or RC100X wired normally open) works great for battery ignition type engines and the RC100X (wired normally closed) works great for magneto ignition. That way, the engine will die if the radio fails.

Mike

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