RE: 3S LiPoly on EPS 400
I have flown it with the 4 blade prop. It was adequate and seemed to give plenty of power. I have made a few more mods since trying this. I added ailerons and configured the wing with 0 dihedral. This configuration is a BLAST to fly. Adding the ailerons were very easy. I just epoxied two Futaba 3110 micro servos to the underside of the wing and cut out the molded in ailerons in the wing. I used packing tape for the hinge. The aiplane is very nimble but has the usual slow stick characteristics when landing.
The next thing I want to try is gluing two wings together to create a symetrical airfoil. I think it would make a great 3D trainer. I cant wait to put a brushless on this airplane.