Kmot

My Feedback: (24)

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.

MarvinE255

My Feedback: (10)

Mejzlik 20x10 prop. Engine is on a Aeroworks PT-17 Stearman at about 20 lbs. Will try and up load pic.

MarvinE255

My Feedback: (10)

Ar-400 in a PT-17.

Kmot

My Feedback: (24)

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!

MarvinE255

My Feedback: (10)

Keleo exhaust. Sent some pics in response to your PM. Let me know if you got them.

Ram-bro

My Feedback: (101)

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?

MarvinE255

My Feedback: (10)

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.

Kmot

My Feedback: (24)

Marvin, thanks for sending the pics! I have not received them yet. Did you send via PM or personal e-mail?

MarvinE255

My Feedback: (10)

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.

chasrb

If anybody is interested[link]http://www.rcuniverse.com/market/item.cfm?itemId=245366[/link]

Kmot

My Feedback: (24)

Marvin, was your Keleo manifold easy, or hard to line up and install?

Cybertom

Chasrb,

For what he is asking I would rather buy new.

the Gnome

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

chasrb

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.

MarvinE255

My Feedback: (10)

Very easy. No tools except to do the final tightening on the nuts.

the Gnome

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

gnome

SJN

gnome, do you know any places in german to get a moki 250S that is cheaper than airworld ?

the Gnome

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

gnome

SJN

thanks :-)

Have you guys seen this rotary radial

http://www.youtube.com/watch?v=A16EW...elated&search=

the Gnome

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.

Holm und Rippenbruch

gnome

the Gnome

Some pictures

SJN

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 ?

the Gnome

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

gnome

SJN

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

SJN

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