I got to fly a friends UCD3D powered by a YS 61 heli engine. I was very impressed! Even with the 60, it would easily hover, with enough reserve power to pull out vertically. Torque rolls needed aileron to get it spinning, otherwise it would just hang there. Flying the UCD3D reminded me a lot of flying the Cap 232-2X on Realflight G2......which is one of my favorite G2 planes.

After flying my nephew's Goldberg Extreme 3D, I had myself talked into buying one of my own.....until I flew the U Can Do 3D. Now I'm leaning more towards getting a UCD3D instead.......especially since I've got a couple of ST 90 engines sitting around collecting dust.