Scott Ellingson

My Feedback: (146)

No Problem. We are still pretty much on topic. I will also be showing the header for the 36 soon. I just need to make one

Kostas1

Yes,
Scott the distance is arround 7.25 from firewall to propwasher!
So,
the mounts that come with the engine will be ok for my installation?
Will it be some clearance between the firewall and muffler?
Too many questions,.....................
i know..............[:-]

Scott Ellingson

My Feedback: (146)

There will be quite a bit of cleaence for the muffler. That will not be a problem.

frieshoo

My Feedback: (20)

Dang Scott. Nice job on the 36....

Quick airframe suggestion::::

Goldberg Obsession $216 - $35 code = $190 shipped
Wing Area 1265sqin
Weight with the 36GT less than 13lbs... BooYah!

Scott Ellingson

My Feedback: (146)

I would have to think that would be a good combo. The weight being that low it should 3D well. I know the 40 3D'd a EF yak well and this 36 has just as much power so I think the extra pound would not hurt a whole lot.

jstanton

My Feedback: (14)

AeroBob,

I think in the past you told me you used to have the UltraRC 29% Giles. I still have this plane and I was wondering what your thought are on the new Brillelli 36GT as a power plant for this plane. Will the engine be able to mounted to the fiewall without to much trouble? I do think that this engine with a 20x8 prop would be a good combo if it can be installed with out to much modifacation.

Thanks

Bob Pastorello

My Feedback: (198)

INCREDIBLE. You will be VERY happy with that performance, I assure you! Plenty of firewall space, if I remember....

jstanton

My Feedback: (14)

Aerobob,

Thanks for getting back to me on this. I now have a Brillelli 36GT savings plan in affect. I hope to have this engine on its way in a couple ot weeks.

jstanton

My Feedback: (14)

I just ordered a Brillelli 36GT engine for my UltraRC 29% Giles-202. I hope to keep the weight in the 11lbs range. The plane has 1100sq in of wing area and is said the fly very will with a 40cc gas engine. I think the Brillelli 36GT engine and the UltraRC 29% Giles will make a perfect combo. Here is a link to the plane.

http://www.ultrarc.com/gilesNS/index.htm

mmattockx

Scott,

Any luck with the header and pipe test on this engine? I know you have nothing but time on your hands for this sort of stuff...


Thanks,
Mark

Scott Ellingson

My Feedback: (146)

Nothing yet. I have so many engines to build I will never see the light of day I will do it as soon as I run one again. I was just tweeking the ballancing on them. A header will be pretty easy. I will use a 50cc pipe so it will not be all that accurate, but close.

rustypep

My Feedback: (6)

I pulled the manual for the Obsession tonight. I have one in a box waiting for the right engine to come along and this engine has my hopes up. The only problem I see here is that the distance needed from the firewall to prop is 5 3/4 so the muffler is going to be an issue since you need 6 1/4. There is no engine box. It is a traditional firewall so some mod will have to be done. No tunnel for a pipe either. Lots of room in the fuse to get creative but it won't be a drop in fit. I still think this might be the right engine unless you want to run a Saito 2.20 or O.S. 1.60fx. I don't want a two stroke glow and it would take a big diet to go down to a Saito 1.80. No CF parts in the kit so one could invest in a few pieces and cut some weight. I will pull it out this weekend and also look at the width and height to see if there are issues there as well. The cowl/fuse is pretty narrow so I think the width and the muffler are going to be the main issues. I hope this will work because running gas would be so much better/cheaper and I could downsize the tank too.

Almost forgot to mention that a 20 inch prop is only going to leave around 1 inch of prop clearance. A little tweaking to the LG might be in order as well.

rustypep

My Feedback: (6)

Scott,

Please explain the width measurement. It say 5 inches from side to carb. Is that from the opposite side of the engine to the tip of the velocity stack? Thanks!

Rusty

Maudib

My Feedback: (51)

Scott will have to answer for sure... but I did a quick mockup... and it's hard to say... but 5" looks like it does not include the velocity stack...

3.5" from center of the shaft to the outside edge of the carb and 4" to the outside of the stack...


I could easily be off the 1/2 though...

Scott Ellingson

My Feedback: (146)

You are correct. It is about 3 1/3" from the centerline to the edge of the carb. Not counting the stack witch does not have to be used.

Also there is no need to run a 20" prop. You could just as easily run an 18x8, 18x10 or so. Even an 18x6 wide. You will never over rev this engine. It can do over 13,000 rpm.

jstanton

My Feedback: (14)

Scott,

I will be mounting this engine in a UltraRC 29% Giles and the back of the prop washer to the firewall is only 5 3/4". In your info page about the 36GT it says the length from the prop washer to the end of the muffler is 6 1/4" What is the lenght from the back of the prop washer to the motor mount? If it is 5 3/4" I'm set and I will only have to cut a small opening in the firewall for the muffler to fit into.

rustypep

My Feedback: (6)

Thanks for the info from both you and Maudib. I will do some measurements this weekend on the cowl and firewall to see what I am dealing with in the Obsession. I am getting excited about this setup now. Maybe Keleo can come up with a muffler that will work in the narrow space behind the engine. It would definately be worth the investment.

captinjohn

poco242: How would you rate the 36cc engine for smoothness. Is it better than the 46cc? What would one expect to notice in the way of vibration? It sounds like it is going to be a nice engine. Capt,n

mciaglia

What CF prop is giving the best numbers on this engine. I was looking at the PT 20x8, 19x8, 18x6 or the Mejz same sizes. Just curious?

Mark

jstanton

My Feedback: (14)

Has anyone recieved their Brillelli 36GT yet? I was wondering what kind of RPM and trust readings people are getting. I have one on order and cannot wait. I my even order the tuned pipe if Scott comes up with one for it

kwjames

This not a reply but a request for information. I am looking to get the 36 to put in my Ultra Giles. I am thinking my finished weight will come in at 11 plus lbs. According to Scott the 36 wil turn a 20x8 at 6800 RPM. I found a static thrust calculator on line that says I will have a static thrust of 17lbs. The same calculator says that if I go with a 20x4 prop and can increase my RPM to 8800 I will have 37lbs. of thrust. If all I want to do is 3-D to hover and have great pull out, why would I not want to use the lower pitch prop. I am looking for a real smart guy to explain this to me. Not just any smart guy but one that can explain it so a real dumb guy (being me) can understand what you are saying.
Thanks Ken

STG

My Feedback: (26)

Ken, most thrust calculators are not very good. Most do not change thrust when there is a change in pitch.

PE's will get you much closer to what you are after:

http://www.mvvs.nl/prop-power-calculator.xls

rustypep

My Feedback: (6)

I got the measurements off the Obsession. The firewall is 4 7/8 wide and 7 5/16 tall at the center. If the carb was on the opposite side, I might have gotten it mostly in the cowl. I forgot to measure from the center of the mount to the edge on the short side. The carb is going to stick out, it is just a matter of how much. Right now I am guessing about 3/4 without the stack. The firewall will also need to be moved back in the middle to make room for the muffler. On a more positive note, it doesn't look like much of the plug or muffler would stick out

Anyone have the wide and height of the bolt pattern with the stock mount? I am sure I won't get that lucky but it is worth asking.

jstanton

My Feedback: (14)

Any body got the 36GT yet? I'm wondering what kind of readings you guy's are getting with this new engine and maybe some pic's on how you installed it into you airframe. I am going to be installing one into a UltraRC 29% Giles. Seeing how one has been installed will help me figure out the best way to install mine when I get it.

jstanton

My Feedback: (14)

This thread seems to have died out. I got an e-mail from Scott and my 36GT will be on its way to me next week sometime. I know he is really busy getting these engine built for us.

Has anyone got any #"s yet on what rpm's they are getting and on what props? I am putting this Brillelli 36GT on a UltraRC 29% Giles and I plan on using a MAS 20x6 prop. I know they are not the best props, but Xoar, NX, TBM, and all the othe top end prop manufactures don't make a 20x6 prop. I am not looking for speed I just want the best pull I can get.