Thining about buying a U-Can-Do 60.

Wanted to use an O.S. 91 FX Ringed engine.

Would this be enough power and what prop is best for a combination of pattern and 3D?

Thanks.

I think most people like the 4 stroke engines better in this plane. I think the main reason is the inverted engine. The 4 stroke tolerates it better than the 2 strokes do. I would think the Saito 100 would be the best choice.

However, if you do use the FX91 it will have plenty of power to do anything you want with the plane including hover and 3D. I would use a 15x6 prop on it.

There is a huge thread over in the 3D forum if you want more info. If you go to the UCD46 thread all of your questions are welcome there. On both sizes of UCD (60 & 46).

Thanks
Barr;y

I concur about the saito. I have a Giant Scale U-Can-Do with an inverted Saito 150. I do have a 2 ounce Saddle Tank mounted left fuse side directly behind the cowel to prevent air bubbles, etc. I do every 3-D manuver you can dream of and I've never dead-sticked!!! The Saito is simply ROCK SOLID. One of my flying buddies has a 2 stroke in his 60 and it has dead-sticked inverted twice in the last dozen flights. He is going to install a Saddle tank so that may help. If your curious about the saddle tank, I will swear by it! every time I finnish flying, the saddle tank has about 5 tablespoons of air in it. That would've been air going to the engine other-wise. The 4-stroke works VERY well with this plane... ONE LAST IMPORTANT THING! Be VERY sure to add some bracing to your tail. I had my rudder stab completely shear off on the fith flight. The rudder stab is contructed from soft balsa and will not take the forces given to it unless you have some tail bracing. If you look at my profile, you can see the pics of my Giant U-Can-Do.