Pisaneli Thanks, now I'm in doubt between two options:
1 - Motor KD A22-20L Brushless Outrunner (http://www.hobbycity.com/hobbyking/s...2106&aff=64164
2 - Motor Turnigy TR2830-1050 (http://www.hobbyking.com/hobbyking/s...idProduct=2112
The two will be used with a 2S Lipo.
I prefer flight duration, has great thermal here, I would only use the engine to reach them.