I fly it with the cem motor. I'm using the mec gear box 5:1(it's the highest you can fit with theat motor output shaft, 5mm) spinning 16x8 at around 5,000 rpms drawing 52 amps static. TP gen II 3s3p 6000. I think it was me that says it hover at about 1/2. It auw is just about 4lbs( alot of reinforcements) 16x8 is the max for this motor and GB. 52amps is at its limit. With 10min flight of alot of hovering and punch outs. I use about 4000 mah of batt and the motor is about 115-120 degrees. the other setup i run is the ol hacker C40 6:1 with a 17x8 prop. Draws about 48 amps(58amps with 17x10, too much). It runs hot though. about 140-150 with the same flight pattern.