I have searched everywhere for a 1 horsepower Glow engine with >=500 OZ-IN of torque. While finding the horsepower needed is easy, I am unable to find any glow engine that also meets the >=500 OZ-IN (about 2.6 FT-LBS) of torque.

So maybe a very experienced forum member on here can help point me in the right direction?

Well HP=Torque*rpm/5252 and you know the HP and torque you want so really all you need to know is what revs an engine would be turning to get those figures. So you have RPM=HP*5252/Torque which gives RPM=1*5252/2.6 or 2020RPM.

No engine (other than a very large one idling) can produce those kind of figures but all that's needed for a model engine is some suitable gearing. Take for instance an engine that makes 1HP @ 12k revs. To get that HP at those revs it needs about 84 oz-in of torque. With a 6:1 gearing the output shaft torque would be 504 oz-in.

You want torque?

Buy a gasoline/petrol engine.

Thanks for the replies. Now I know there is not a Glow engine that has the torque capabilities of my 100 watt (much less than 1 HP) electric motor which develops 560 OZ-IN of torque when stalled (0 RPM) at the SHAFT (no gearing). I already know the formulas for horsepower and torque, but hey thanks anyways downunder as its always a good deed to help out a forum member.

Locked rotor torque is not realistic to actual flying

I have a very special intended use for my motor. Its not for flying or racing, but something very crazy indeed if you call it that.

Well do tell as were a crazy kind of people here. I knew a guy who took the OS wankle and made a generator out of it[sm=spinnyeyes.gif]

Ahhhhhh....ok.....well I could put maybe 150 ft-lbs of torque on a tension wrench....that'll beat your electric motor any day and I'd be stalled too

Or how about a steam engine but hook it up to a high pressure gas bottle? That'll beat your electric motor too if it doesn't explode

But if torque without rotation is all you want then why not just hang a lever off whatever contraption you're thinking of making and let gravity do the work? Last I heard, you don't even have to plug the Earth back in to recharge it .

Forgotten the model diesel engine has higher torque than glowplug engine???

Jens Eirik

I hadn't forgotten them but even a diesel doesn't put out much torque at zero revs

Hi torque from zero revs..??? AS-EE are not fresh in brain??? Buy torque wrench, it does give hi torque in zero revs in use..

Jens Eirik

"GlOW IS FUN" "GLOW IS FUN" GLOW IS FUN"
I wouldn't fly electric if they produced twice the torque and rpms of glow. Glow is fun to fool around with unlike the electric, they never need adjusting or present a challenge. However, I can see why some like electric because they don't know how to run a glow. SO don't get me wrong I am not saying everyone should fly glow but only that I will be flying glow regardless of the power and other great things about electrics.

Buzz,

Do you still ride in a buggy pulled by a horse and put ice in the ice box?

Are you using a Commedore 64 computer too?

They had electric cars before the Commedore 64 and even before home refrigeration. Was a bad idea then, and till they can make batteries charge instantly and have 300 Mile range, and cost the same as gas engines, then it will still be a bad idea.

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Well, that is one way of getting around the early rotor seal(s) faliure problem. <G>


Ed Cregger

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Oddly enough, a reciprocating steam engine produces maximum torque at zero rpm.

I suppose that if you absolutely insisted upon using a glow plug, you might be able to rig up a way to fire up the boiler via glow heat. <G>


Ed Cregger

A bit off topic but steamer can be fast too!

[link=http://en.wikipedia.org/wiki/Stanley_Steamer]Stanley steamer 127 MPH 1906 land speed record[/link]

The one thing I like about my little electric extra 330 is stepping out the back door anytime the urge hits and getting somestick time without pissing the neighbors off

Read here: http://www.stanleymotorcarriage.com/...ankineOtto.htm

Jens Eirik

They each have their place. For me, electrics suffice when flying glow isn't an option. There are plenty of reasons for that, from performance to cost to my interests. I enjoy fooling with an engine rather than numbers on scratch paper or in a spreadsheet. More than that, I get a lot of satisfaction out of my engines running well.

Trolling threads should result in a ban.

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I have four or five RTF electrics that I use for just that purpose. I wouldn't want to be without any form of propulsion (other than rubber and CO2). All of them fill a niche.


Ed Cregger

Steam engine are powerful. but most powerful are hydraulic engine when we are talking about maximum torque at zero rpm.

Jens Eirik