RE: U Can Do 3D
I have the U-Can-Do .46 and I love it. It is built very strong, and will hover like a dream on landing!
I have a Thunder Tiger .91 4-stroke in, which powers it nicely. One thing I found out is, "reinvert" the engine. Great Planes wants you to leave the engine inverted, but from past experience engines do not run well up-side-down!
If you looking for a sharp-looking 3D plane, the U-Can- Do is the one!
--Garret H