RE: 1/5 Super Chipmunk
I built the Dynaflite. I sheeted and glassed the entire plane and made the wing two piece. I added the Robart oleo's and angled the l/g forward just a bit. Mine is flying with a g-26 turning a Zinger 18-6 prop. I have not weighed it, but I'd guess it is at least 14 pounds. I tried to get the equipment moved rearward to isolate it from the gas engine and help with the weight distribution. It ended up ever so slightly tail heavy. It flies fine. I would make the flaps operational. It lands easily without them, but can cover some real estate even on final. It snaps and knife edges well. I have not spun it. You could put servos nearer the tail and use a g-38. The cowling is very narrow. I had to fabricate a firewall mounted muffler to get it all in. Having the rear exhaust layout of the G-38 would make it easier. The plane can handle the weight. The carb sticks out just about 3/8".
Ari,
How was your visit to the States? Did you get your Spacewalker?