I like the MVVS/Evolution gas engines and presently have an Evolution 26cc gas/petrol engine.

I used to own an MVVS 26cc and 35cc, but sold them both to Father Moleski (Marty) of the r.m.rc.a newsgroup. He has had a few problems with the 26cc version's lower end. IIRC, he flies, or I should say flew, that engine a fair amount. Both of the engines I sold him were ignition/gas/petrol engines, as is my current Evolution 26cc engine.

I know that the gas versions of the 26cc engines do not produce the same power as an OS 1.60 on alcohol based fuel. Although the MVVS 1.60 glow engine might produce nearly the same power as the OS 1.60FX. Gas engines cannot produce as much power as the same engine optimized for alcohol fuel, even with the same displacement, with everything else being equal.

I'll have to give that Graupner Ultimate Biplane ARF a look-see. Thanks for the heads-up.

I love Ultimate Bipes, Pitts Specials, Christen Eagles, Mr. Mulligan, Clipped and full wing Piper Cubs and Bridi pattern ships. Those are my favorites. Oh, with an occasional delta wing configured model thrown in. Did I mention Ugly Stiks? I love them too, in all flavors.

I just ordered a Mr. Mulligan (forget the proper designation) Clipped Wing Monocoupe a while ago. Always wanted one, now one is on the way. Good old Santa Claus took care of me again.


Ed Cregger