Wow! I was digging around some stuff tonight looking for a set of plans to a Goldberg Tiger 2.....and it just happens that I found the single sheet plan from my MK Models Magic 20 that I built 20 something years ago. I think I've got an OS 25FSR in it without a pipe as I seem to remember back in that day the "beginner" pattern class couldn'r run tuned pipes.
Anyway, I've still got the plane, it's probably only been flown about 10 times since it was built. Light as a feather, I'll have to share some pics.

Anybody remember a model from the early-mid 70's called a "Cutlass"? I've got one of those basically rotting in an outdoor storage complete with a probably frozen up Kraft 61 and a full set of Kraft radio gear.