What enigne is this?
I bought this .61 back in the late 90's from a catalog. I don't remember where it came form. Very well could have been a Hobby-Lobby catalog "the hobby company, not the craft store" but not sure. Anyway it is a clone of something. The only marking is 61 on the side and made in Taiwan on the cover plate, no serial numbers anywhere. The muffler is a replacement from another company so its not the original. And the silver extension was added on the HSN. It comes out heavy for a .61 at 27.5oz with muffler. Sorry its a little dirty in the pics.
I flew the engine back in early 2000's in a Great Planes Easy Sport 40. I never had any problems with the engine and it ran smooth and transitioned well. thanks