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First RO-Magnum 36 done and ready for t

Stuka Stunt Main Forum · 8 of 8 known posts recovered

Maverick · Feb 22, 2004 04:59 PM

#0 source
This is a pic of the first Ro-Mag 36 we built. It should be pretty much like the Aero-Tiger(Thunder Tiger) just in the Magnum case. Main differences will be Head and button insert and needle valve through the venturi. Both the TT and the Magnum have flat top liners and cast heads. We wanted to be able to control the compression and also prefer the head insert into the liner rather than sit on top. This also makes it easy to experiment with different combustion chambers and compression. Weight is 222 grams(7.83 ounces). Test bench was tied up with other projects and will not get to run till tomorrow. Will have flying in a day or 2.
Plan is to anodize the heads gold for the first dozen as a introductory thing and have ready for sale in Tucson(VSC) in about 3 weeks. Windy will be testing in his B25 and New A26 also. I can take orders now but first dozen go to VSC with me for sale. Price is set for now at $219.00. I have both Tongue(RSM) and tube (Ro-Jett) mufflers.
Richard Oliver

gso · Feb 22, 2004 06:21 PM

RE: First RO-Magnum 36 done and ready f#1 source
Richard.
I think you have another winner here.I assume it is aac.Which saves weight over the stocker.

Hope to see you next month at VSC.

Gordy

Gordan Delaney

Maverick · Feb 22, 2004 08:09 PM

RE: First RO-Magnum 36 done and ready f#2 source
Thanks Gordy, you need one for that new plane of yours!? Nice looking plane. I am really looking forward to VSC and seeing all of the people I have become aquatinted with in Stunt.
RO

gso · Feb 22, 2004 10:07 PM

RE: First RO-Magnum 36 done and ready f#3 source
Richard,
Are you going to have extra venturi`s for this mag.ro 36? If so would you bring them to VSC.I need accouple.If So what size are they?

Thanks
Gordy

Gordan Delaney

Maverick · Feb 22, 2004 11:35 PM

RE: First RO-Magnum 36 done and ready f#4 source
Gordy, Tell me what you want and I will have it with me! What ever it is I will bring it.
Ro

gso · Feb 22, 2004 11:42 PM

RE: First RO-Magnum 36 done and ready f#5 source
LAST EDITED ON Feb-22-04 AT 11:44 PM (CDT)
 
I would like one 260 and one at 270 one at 280.

What size are you using now?And your needle valve assy.

Gordy

Gordan Delaney

Larry Foster · Feb 23, 2004 01:07 AM

#6 source
Richard:
Does the engine have an AAC Piston and Liner like the Aero Tiger 36?
If so will you rework and existing engine and what’s the cost?

Flying Control Line is not a Hobby it's a way of Life.
Be Safe.
Larry Foster

Maverick · Feb 23, 2004 07:43 AM

#7 source
Gordy, I am using the Ro-Jett NVA and it is .187 dia. so the venturi calculated to be .305 to get the equivalent of approx. .180 true venturi. My BSE 40 seemed to like a .189 in mildest form so we went with a little smaller than the .40.
Larry, Yes it is AAC. If you send me your engine I will rework it. I can only give you an estimate on the cost. If the engine already has venturi, NVA, it will be different. If it is a stock in the box engine that would be another price but easier to estimate. Price of the engine (70.00)subtracted from the 219.00.
RO