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HelicopterGasser Model RC HelicoptersOther › Kill switch
06-04-2004 04:56 AM  13 years agoPost 1
Jared J

rrApprentice

Harrisonburg, VA

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do we have to use it on helis? I'm gonna get a stator gator when I get a governor so for now should I just zip tie the kill wire out of the way like the gasser manual states?

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06-04-2004 05:31 AM  13 years agoPost 2
AGRAV8

rrProfessor

Mosquito Coast......Houston Texas

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Yep...secure it for now

you will use the black "stub" lead for the stator gator sensor when you get it. You can secure it for now, just make sure it is not prone to chafing on a frame or the base plate. The RED lead of the stator gator will plug into it when you install it, and the black wire of the 'gator with the "ring" terminal will connect to a 3 MM bolt on the bottom of the lower rear frame/baseplate. BTW, the GGS-23 is the unit you will need for your engine.

James

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06-04-2004 03:12 PM  13 years agoPost 3
FLYINFOOL

rrKey Veteran

Cudahy, WI

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I use both a manual kill switch and a servo actuated kill switch.
Both are connected to the black wire.
I really like to be able to shut the engine down even with a throttle servo, linkage etc. failure.
Does having a kill switch connected to the same lead bother the stator gator?


Jeff Borowski
RAMS Club President
www.ramsrcclub.com

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06-04-2004 06:04 PM  13 years agoPost 4
AGRAV8

rrProfessor

Mosquito Coast......Houston Texas

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Good question !

That would be a good point to ask Tom about. In THEORY, if there were an open circuit on the kill side that was not closed(grounded) during normal operations, I don't think there would be a problem. The only question is if the induction side of the gator is so sensitive that it would not be able to detect the pulse with additonal components tied into it.

James

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06-04-2004 06:11 PM  13 years agoPost 5
Jared J

rrApprentice

Harrisonburg, VA

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Tom has stated before that you cannot use the kill switch with the stator gator.

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06-04-2004 07:13 PM  13 years agoPost 6
rbort

rrProfessor

Franklin, MA - USA

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Kill switch

I don't use one. I kill the engine with throttle trim. As far as a mechanical switch, I use the choke lever. Its just as good as any kill switch connected to the black wire. Close the choke and the engine is dead.

If you want to protect against that chicken dance, you can get a relay switch from Radio Shack for $3 and connect it to the receiver so it gets power when the receiver gets power. In case you crash and lose power to operate the throttle trim, the relay switch will lose power also and ground the black wire hence killing the engine. I used this system for a couple of years, and then I removed it thinking it might fail and kill my engine enexpectedly (it never did but I chose the KISS method). Luckily, I never had to "use" it, but its an idea if you think you need it.

-=>Raja.

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06-08-2004 05:26 PM  13 years agoPost 7
Stet

rrElite Veteran

Key Largo FL

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not exactly

You absolutely can use the kill switch with the stator gator

Tom was probably pointing out that the stator gator for the Vario setup replaces the kill switch which it does

I set up a vario, and wired in another pair of leads which I routed out of the shroud to a kill switch. This works.

I also am using a kill switch with my stator gator on a G23 PUH engine.

The kill switch closes the open circuit that the stator gator is reading across, when the circuit is closed the engine stops. When the circuit is open, the startor gator is reading the differential across the leads. The stator gator is unaffected by the open circuit leads coming off the circuit.

I spoke to tom about this, he told me if I wanted a kill switch on the vario I would have to wire it in, which I did

You might try killing the engine using the choke lever. If that works (never tried it myself) it might be an acceptable replacement for the kill switch.

In my opinion, the kill switch is a very important feature. During testing of my Futura SE gasser, sure enough I had the wrong model memory loaded and when it finally started, SURPRISE - FULL POWER. Having a solid grip on the head, the heli spun around and I hit the kill switch within about 1 second so there was no damage to my clutch lining.

Hot starts happen and you should be prepared to have some way to kill it. The fuel lines are too tough to simply rip off as you can do with a glow heli. When this happens, especially with the wrong model memory loaded, or receiver left off (most common hot start causes) you won't get the problem solved by adjusting the transmitter. Also, if there is some electronic failure the same applies. Finally, when a big gasser goes ape-stuff on a start, you won't necessarily be able to reach over to your tx to kill it there, assuming doing so would indeed shut it off.

If you don't believe me give Tom a call and he will confirm to you what I am saying.

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06-09-2004 12:24 PM  13 years agoPost 8
Chris Bergen

rrElite Veteran

cassopolis, MI USA

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Believing you is not a problem Stet! I have hot started a couple of times myself.

Every time, I have reached for the choke or put my palm over the venturi to shut it down instantly. Try it sometime.

The point is that sometimes stuff happens, and you need to have an emergency procedure in place. If you choose to wire in a kill switch, be ready to use it. If you use the choke method, same thing. I don't even mess with the transmitter in a hot start, I shut it down, then figure out what went wrong.

Chris D. Bergen

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06-09-2004 03:33 PM  13 years agoPost 9
Stet

rrElite Veteran

Key Largo FL

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Chris

good to know, I think getting to the choke lever should be just as easy as finding the kill switch. I think from now on I will set them up that way as there is less to set up, and no worries about inadvertent shutoffs from the switch circuit.

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06-11-2004 09:54 AM  13 years agoPost 10
AGRAV8

rrProfessor

Mosquito Coast......Houston Texas

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Tom

So what do you think of your CENTURY GASSER
I think I wish you had a chance to come fly mine.......when you gonna get over this direction??

I usually advise the choke method for aborting a start problem. No worry about throttle position to let me activate the throttle cutoff.....and I'm right there with my hand on the pull rope.

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