I think the stock motor is fine, this plane screams and is a ball to fly. there is no fuss as with a gas plane, just charge it up, find a small field and have a blast! I flew mine yesterday in gusty 20mph + winds and this thing was moving with the wind and then I slowed it down and literally flew backwards into the wind! They are a ball to fly, not a beginners aircraft, but definately a great second plane after a trainer and a sim.