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Home✈️Aircraft🚁HelicopterBeginners Corner › Plug heater
07-17-2006 03:57 PM  14 years ago
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mfcheng

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Hong Kong

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Plug heater
I am getting ready to test the new OS 50 on my new Evo. I have an old plug heater Apex which I used for my planes. It is ten year's old and could be connected to the 12v battery, using a 7.5 fuse. There is a screw to adjsut the amount of current to the plug. The problem I had was burning the fuse easily. Not sure whether I should still use it for the heli or to get a new one. Any advice on the way forward will be greatly appreciated. If a more modern plug heater is better, what is the more user-friendly model? I shall be using OS no.8 plugs.
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07-17-2006 04:05 PM  14 years ago
Spun

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Temecula, ca

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Just grab a rechargeable glow plug driver, it will be much easier to handle, very compact and you wont have to worry about burning the element by accident.Clint Summers President, Menifee Valley Flyers
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07-18-2006 02:03 AM  14 years ago
billm

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Liberty Lake, WA

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I would get a nistarter and be done with it.
If you want to use your heater. Crank the current down to about 800mA.
(.80 amps)
Good choice of plugs thats what I run on my 50 Hyper.
Also, Break that bad boy in right! It's a ringed engine, and If you do. It will have all sorts of power, and life.
My 2 cents
My name is Billm. Cough, and I'm a Heli Holic
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07-19-2006 03:24 PM  14 years ago
w8qz

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Grand Rapids, MI - USA

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I doubt that 800 mA would light the glow plug. I use a 10+ year old 'hobbico' power panel. If I can believe the meter on it, I use about 2.5 A to light the plug. The requirements are the same for planes and helis, assuming the same glo-plug.

What I do is this:
a) remove the plug from the engine
b) turn the 'plug heater' all the way down - to minimum current
c) connect the plug
d) gradually turn the 'plug heater' up while observing the filament - you should see a medium to light red glow with the correct setting.
d) use that setting for that glo plug.
Other plugs may have different current requirements.

I like to use the least current necessary - to avoid 'zapping' a plug.
"The helicopter is much easier to design than the aeroplane, but is worthless when done. W. Wright"
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07-19-2006 03:47 PM  14 years ago
Yugdab

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Bedfordshire, England

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At 2.5 amps an Enya 3 has a nice yellow glow and seems to work okay in an OS 50 hyper.If things don't change... they'll stay as they are!
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07-19-2006 04:23 PM  14 years ago
billm

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Liberty Lake, WA

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Now you got me thinking. The 800mA is what my power panel reads.
I will have to put my current clamp on the sucker and measure it.
My name is Billm. Cough, and I'm a Heli Holic
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