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Gasser Model RC Helicopters > Kill Switch
 
 
airshares
Senior Heliman
Location: Camarillo, CA

What are people using to kill the engine on the gassers.
08-28-2003 Over year old.
HOMEPAGE  
 
 
daggit
Elite Veteran
Location: Waseca MN

I don't run a kill switch.
08-28-2003 Over year old.
HOMEPAGE  
 
 
smosher
Senior Heliman
Location: canada

Throttle Trim

Just set the throttle trim so it will close the throttle enough to shut the engine off.
08-28-2003 Over year old.
 
 
airshares
Senior Heliman
Location: Camarillo, CA

Thanks

Thanks. Thats what i do on my nitros i figured it was the same concept for the gassers.
08-28-2003 Over year old.
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cfranks
Veteran
Location: Adelaide South Australia

Smosher is correct but I recomend removing the stop/idle screw (on the carb) first. This will allow the throttle to shut right down.

Charles
08-28-2003 Over year old.
 
 
Naomi
Elite Veteran
Location: Ontario, Canada

Kill switch is good for emergency in case of hot start.... pulling fuel line works too but messy and not as quick as the kill switch, (don't ask me how I know )

Naomi
08-28-2003 Over year old.
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ImRich
Veteran
Location: Derry, NH USA

Yes, I also wired a kill switch.

On a small glow machine it's easy to pull the fuel line if you get a hot (full throttle) start. The gasser has so much torque, I wouldn't want to do this.

Plus, with the gasser having a pull handle and the ability to start without a battery for glow, I think it's safer to have a kill switch.

99% of the time I kill my engine with the throttle trim (actually the engine cut function of my radio). But I still place the kill switch in the "Kill" position when I'm not flying.

If you don't use a kill switch, at least pull the spark plug cap for safety!

I'm using a small switch which I wired through my frames. I noticed that Zenoah (or Horizons hobby) is now selling a pre-wired kill switch with the connections all ready for their engines. See your local hobby shop for this if you're not comfortable with wiring. I saw these at my local shop and almost purchased one as it looked well constructed and had a robust but small switch.

With heli's.. think safety!

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Rich
08-28-2003 Over year old.
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KJM
Heliman
Location: No. Hoosick, NY

You need a kill sw on a gasser mainly to be AMA legal. Beyond that, it's handy once in a blue moon.

Kevin
Rotary Aerials
08-28-2003 Over year old.
 
 
Naomi
Elite Veteran
Location: Ontario, Canada

Quote 
If you don't use a kill switch, at least pull the spark plug cap for safety!


Err... well that's ok I am not going to try that.. my heart is not that strong from the shock..

Naomi
08-28-2003 Over year old.
HOMEPAGE  
 
 
ImRich
Veteran
Location: Derry, NH USA

Naomi!

I didn't mean WHILE the engine was running!

I meant to keep the spark plug cap pulled when the heli is not in use to prevent accidental start ups, especially with people around who like to pull handles while saying "what's this for?"

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Rich
08-28-2003 Over year old.
HOMEPAGE  
 
 
Carey Shurley
Senior Heliman
Location: Orlando, FL

FWIW, I've never used a kill switch. I normally use the choke to kill the motor. It won't start or continue to run with the choke fully closed. For velocity stack users, you can store the machine with a neoprene stopper in the inlet and cover it with your hand to stop the motor. I also use a throttle cut position that completely closes the butterfly.
08-28-2003 Over year old.
 
 
Dr.Tim
Key Veteran
Location: Mojave Desert

Throttle trim

That's all I use to kill the engine ......

Dr.Tim

From Simple minds come simple ideas! Starwood Models, Approach Engineering
08-28-2003 Over year old.
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Cessna
Senior Heliman
Location: Tucson, Arizona

AMA requires a kill switch to be legal to fly at their events.

I feel that kill switches are more important on planes since without one someone fiddling with the prop could accidently start the engine. On a heli someone actually has to pull the starter cord and almost everyone knows that is how to start the engine so it wouldn't be "accidental". But there are a lot if idiots out there!

On my Vario Bell 47 I'll be installing a kill switch. I am also installing an on-board starter. So, it will protect me from dumb fingering my TX and "accidently" starting the heli on the bench in my shop. But, that really could never happen........................

Steve Cass
Tucson
08-28-2003 Over year old.
 
 
aashu
Veteran
Location: Garden State , NJ

Is that Yellow

Is that Yellow Push type switch a kill switch on RC230 ?

Proudly Flying in NJ, USA
08-28-2003 Over year old.
 
 
Naomi
Elite Veteran
Location: Ontario, Canada

Nels, Ok when you are not in use, it does takes a bit of effort to pull start that sucker, if you think youngster would be strong or tempted to do that I doubt it, besides why would you leave the fuel in the tank if not in use anyway. I usually keep the tank drained when done flying.

Aashu, Yes that's the one.

Naomi
08-28-2003 Over year old.
HOMEPAGE  
 
 
Dr.Tim
Key Veteran
Location: Mojave Desert

Lets say the engine is running at 1/2 throttle or even just above idle ... Who in their right mind would reach through spinning blades to hit a Kill Switch? Makes no sense to put a kill switch on a helo ... Is there one on a Glow powered ship? Nope! I can see the reason on an aircraft but Not on a helo .....Just my thoughts.

Dr.Tim

From Simple minds come simple ideas! Starwood Models, Approach Engineering
08-28-2003 Over year old.
HOMEPAGE  
 
 
ImRich
Veteran
Location: Derry, NH USA

I guess that I'm a bit paranoid due to being past 'safety officer' of our R/C club.

I can imagine this: You have a hold of the head, pull the starter and realize you've got a hot start for some reason. The blades are not spinning cause you have the head. Seems to me it would be easier to hit the kill switch or the choke, depending on what is faster and you thought about it!

With the kill switch I can be sure the ignition won't fire while doing work on the heli. There is enough fuel in the fuel line and even the carb to do some harm even with a 'dry' tank.

I've also seen too many kids grab a handle and start playing with it "what's this do?" syndrome!

Some people never even think about these things. Some people think a bit too much!

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Rich
08-28-2003 Over year old.
HOMEPAGE  
 
 
Naomi
Elite Veteran
Location: Ontario, Canada

Quote 
Kill switch is good for emergency in case of hot start....

Well when starting heli you have to hold the blade grips anyway , who doesn't do that?.. if you pull start and suddently engine go full bored.. you have to figure something out fast.. not letting go the head, that would be meant dead or badly wounded for sure. .. Eg: Wrong Model memory.. happened to me once..
One time I was working on my airwolf.. then later on I go fly my benzin, forgot to change it back to Benzin memory.. boy!.. wasn't life quite exciting on hot start huh.. Lucky didn't damaged the clutch liner, Kill switch saves the day.. had a few flights after.

Naomi
08-28-2003 Over year old.
HOMEPAGE  
 
 
Cessna
Senior Heliman
Location: Tucson, Arizona

A kill switch does make sense from a safety point of view...however minor that might be. Heli-Gal's comments about a hot start is a good one and it could happen and yes there are other ways to stop it too. Most of us have probably been there!

In my planes I have converted my G62s over to ignition rather than using magneto. There for I have to turn the battery on before the engine will start. I use an optical kill switch form EDS on it. This conveniently allows me to shut the engine down from the TX. The TX also must have the switch for the kill switch in the run position before the engine will start. Pretty safe set up here.

On the heli with the engine using a magneto the engine can be simply started by pulling the starter cord unless a kill switch is employed. Normal starting requires a deliberate effort and accidental starting is unlikely. Emergency shut during start up would entale pulling the fuel line or choking the engine. The kill switch properly placed would be a better solution.

Probably not a big deal either way; but, my vote is to use a switch.

Just my $.02!

Steve Cass
Tucson
08-28-2003 Over year old.
 
 
Dr.Tim
Key Veteran
Location: Mojave Desert

I guess I should also State that all My Gassers are in Scale Fuse's ..... In this application it would be very difficult at best to even find the switch.
I would have to agree that it would be a good idea in a Pod ... I stand corrected

Dr.Tim

From Simple minds come simple ideas! Starwood Models, Approach Engineering
08-28-2003 Over year old.
HOMEPAGE  
 
 
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