•Technical Support: When fly the hobby rc airplanes be sure to choose an open area, weather below level 4 wind. For the first flight, please put the throttle to about 30%-40%, adjust the throttle lightly, please do not put the throttle to the maximum, so as to avoid the uncontrolled flight.In order to ensure your flight experience, charging 50 mins fully and flying 15 mins(pls don't charged it more than 2 hours)