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Everything Radial Engines

Old 12-18-2006, 04:14 PM
  #251  
Kmot
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Default RE: Everything Radial Engines

I guess I was thinking of the Europeans, where it seems nitro is a very expensive commodity and so they use a lot of FAI 0% or low 5-10% nitro fuels. These engines seem more popular in EU than they do here in the USA.

I just got two props in the mail today. A MA 18-10 and 20-8. I will be breaking in my ASP FS400AR radial shortly. I am going to use FAI fuel and see how it goes.
Old 12-18-2006, 07:04 PM
  #252  
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Default RE: Everything Radial Engines

Mejzlik 20x10 prop. Engine is on a Aeroworks PT-17 Stearman at about 20 lbs. Will try and up load pic.
Old 12-19-2006, 10:12 AM
  #253  
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Default RE: Everything Radial Engines

Ar-400 in a PT-17.
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Old 12-19-2006, 11:53 AM
  #254  
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Default RE: Everything Radial Engines

I have been dying to know if the AR400 would be a good fit on the Aeroworks Stearman! Thank you for posting the pictures!

Please, Please, Please: take some video when you fly this model and post it for us to see and hear.

BTW: is that a Keleo exhaust? Whatever, it looks great!
Old 12-19-2006, 12:37 PM
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Default RE: Everything Radial Engines

Keleo exhaust. Sent some pics in response to your PM. Let me know if you got them.
Old 12-19-2006, 04:23 PM
  #256  
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Default RE: Everything Radial Engines

Marvin, you mentioned that the engine needs pressure on the tank to run. How are you doing this?Pics? How are you able to tell if all cylinders are firing with this Keleo exhaust?
Old 12-19-2006, 06:06 PM
  #257  
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Default RE: Everything Radial Engines

The Keleo exhaust has a pressure nipple built in on the back side. I connect it to the tank vent after filling the tank since the fuel line is hard to reach behind the motor to fill the tank. I sent some pics to Kmot in response to an e-mail I recieved through rc universe. In addition to the pressure tap Keloe can build in a smoke fitting, my friend has one on order for a OS MAX 3.0 5-cyl.
Old 12-19-2006, 06:08 PM
  #258  
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Default RE: Everything Radial Engines

Marvin, thanks for sending the pics! I have not received them yet. Did you send via PM or personal e-mail?
Old 12-19-2006, 06:30 PM
  #259  
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Default RE: Everything Radial Engines

I sent them as a reply to the PM from RC Universe. If you don't get them send me your e-mail and I'll resend.
Old 12-20-2006, 01:06 PM
  #260  
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Default RE: Everything Radial Engines

If anybody is interested[link]http://www.rcuniverse.com/market/item.cfm?itemId=245366[/link]
Old 12-20-2006, 10:13 PM
  #261  
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Default RE: Everything Radial Engines

Marvin, was your Keleo manifold easy, or hard to line up and install?
Old 12-20-2006, 10:29 PM
  #262  
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Default RE: Everything Radial Engines

Chasrb,

For what he is asking I would rather buy new.
Old 12-21-2006, 01:21 AM
  #263  
the Gnome
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Default RE: Everything Radial Engines

Yes, I aggree, I payed 1,650,- Euro for my new ST710. The only thing is, I had ro wait two years for it, and Doen't have the exhaust after four Years waiting yet!


Holm und Rippenbruch

gnome
Old 12-21-2006, 06:35 AM
  #264  
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Default RE: Everything Radial Engines

I agree it is close to what Ziroli is asking for a new one, I know I bought the first one he had for 2800.
Old 12-21-2006, 10:55 AM
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Default RE: Everything Radial Engines

Very easy. No tools except to do the final tightening on the nuts.
Old 12-26-2006, 11:36 AM
  #266  
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Default RE: Everything Radial Engines

Hello,

I put the prop and rpm figures of my engines in a txt file, as a start of a data collection. So everybody, who brakes his engine in, can add the rpm figures of his engine and post the file again. So we can get a good, reliable collection and we can choose the best model / engine combination.

I hope everybody will get profit of this.


Holm und Rippenbruch

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Attached Files
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Ki18780.txt (890 Bytes, 22 views)
Old 12-26-2006, 11:42 AM
  #267  
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Default RE: Everything Radial Engines

gnome, do you know any places in german to get a moki 250S that is cheaper than airworld ?
Old 12-26-2006, 12:09 PM
  #268  
the Gnome
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Default RE: Everything Radial Engines

Hello SJN,

I think I've seen a commercial advertise in one of our model magazines that also advertises the 215cc Moki, I'll search and tell You then I think tomorrow.

Holm und Rippenbruch

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Old 12-26-2006, 12:16 PM
  #269  
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Default RE: Everything Radial Engines

thanks :-)

Have you guys seen this rotary radial

http://www.youtube.com/watch?v=A16EW...elated&search=
Old 12-26-2006, 12:54 PM
  #270  
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Default RE: Everything Radial Engines

wow, really impressive, especially the scale method of reducing the rpm by cutting of the ignition. Three months ago I saw such a LeRhone engine, I mean full scale, at the german MECA meating in Ungstein. It reved up to 1200rpm and it ran really silently, I think bcause it has no valve overlap. It was one of the last engines of the war and had a relatively modern carburetor, so it could idle at about 300rpm with constant ignition.

By the way, SJN, do You want a gas engine? Because Seidel also has 7 cilinder engines with about 250ccm, I think.

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Old 12-26-2006, 01:07 PM
  #271  
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Default RE: Everything Radial Engines

Some pictures
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Old 12-26-2006, 01:26 PM
  #272  
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Default RE: Everything Radial Engines

Yes, I absolutly have to own a gas radial.
I have fallen in love with the Moki 250. So im saving up.

I have been reading alot, and it seems that poeple like the 5 cylinder better, than a 7 cylinder, because it aparently sounds better. You can hear the cylinders igniting better with fewer cylinders.
Also 50cc pr cylinder in the moki instead of 36cc in a siedel gives it a deeper sound..........thats what I have read anyway...... I have never heard one in real life.


Where can you buy seidels in europe ?
Old 12-26-2006, 02:06 PM
  #273  
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Default RE: Everything Radial Engines

You can buy them directly from Wolfgang Seidel, Königsberger Strasse 10, D-76316 Malsch, phone 0041(germany?)-7246-2210.

I think, You are right with the sound when the engune is idling, but I've hered a 180cc 7 cylinder in a Messerschmidt M35 with bout 120 inch span, that had a very, very deep sound with a collector of big volume. I think the scale sound is caused by the gasoline, that has more internal energy than methanol, so it sounds more agressive. On the other hand the Seidels doen't idle very smooth, so they have a scaly sound during idle.

But here in Germany there is a company, Becker Elektronik, who makes spark ignitions for radials. To my experiance You can convert every glow engine to gas, the only problem is the hotter combustion of gas, but I tried the conversion with an oS FS120 and an OS 60 two stroke, and both engines worked with the original carb and everything. Of course, You have to run about 15% oil, I used Castrol scooter two stroke oil.

Holm und Rippenbruch

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Old 12-26-2006, 02:06 PM
  #274  
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Default RE: Everything Radial Engines

Hers a few vids i like:

Heres a real gnome running in a test stand
http://www.youtube.com/watch?v=R_JMGO5NzuI

Solidworks showing the radial krank in operation:
http://video.google.com/videoplay?do...=radial+engine
http://www.youtube.com/watch?v=TGdOy-1-51o
http://www.youtube.com/watch?v=0T2uQYNUu6c

Airworld FW-190 moki215
http://video.google.com/videoplay?do...=radial+engine

another 215 in an airworld FW-190 testrun on ground.
http://www.youtube.com/watch?v=S9wLuv-g4oM


Stearman moki 215
http://video.google.com/videoplay?do...83470&q=radial
Old 12-26-2006, 02:08 PM
  #275  
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Default RE: Everything Radial Engines

Thanks for the info gnome [sm=thumbup.gif]

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