"OK. As you guys suggested, I got a brushless motor and a 2200 mah 3S battery (I hadn't seen how the power adapter leaches power for the autopilot from the battery-ESC connection), and I'll look up how to enlarge the rudder appropriately.
I'm building my first UAV, based on a Multiplex Easystar. It comes with a brushed motor, which I know isn't very good, but I'm a high school student so I need to keep the budget as low as possible. Is it worth replacing it with a brushless motor,…