One of our club members passed away and in the estate was a completed Curare 20 with a OS .25. I did some trading for it with another member and Finally have my hands on it. I pulled the engine and installed a K&B .21 RE with a Magic Muffler and lots of tiny JR $ervos to run the retracts and all flight surfaces with the little 700 MAH LiFe from Hobby king. 3 pounds 4 oz I think it really goes like stink I am sure this is much faster than intended with that little piped powerhouse! The engine really doesn't have much mid range, pretty much on and off the pipe.
I had some flutter issues but gap seals fixed that issue. Really a fun plane to do Old School pattern flying.
I found out that it had one flight probably in the 80's then it was put up until I got the plane I am honored to be able to fly the plane and it really is a blast from the past.
Sparky