RE: UCD .46 conversion completed
Per Motocalc, I am getting about 900 watts/lb on the 5S. On the 4S I was getting about 800 w/lb and it would hover and pull out at a decent clip.
I really prefer a geared solution for a 3D plane as you can get more prop for less amps. A 14" prop is about the limits on the 4120 and the amps start getting towards thermal above that. You could in all feasability gear the AXI in a belt drive or MEC superbox (same one I used) and double your output. If I already had the AXI I would gear it in the superbox at 1.5:1 swinging an 18X10. Weight should sit around 84 oz and thrust values should be around 135- 140 and 800 w/lb.