Thread: Discussion Great Planes Nieuport XI
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Old Feb 07, 2013, 05:49 PM
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I would say the most likely cause is a stall. If you're some distance out you might be running into moving air that you don't feel "locally", which could cause you to unconsciously change your throttle setting and end up stalling. It could also be as simple as misjudging the plane's speed in calm air and stalling by that means.

The other possibility is a radio issue. Spektrum receivers have failsafe systems that will drive the servos to preset positions in the event of a signal loss. If you haven't set those failsafe positions manually, they could very well be tossing the plane into a spiral condition. Test it by taking off the prop, then turning the transmitter off with the plane's onboard gear still powered up. Note where the servos go, and reset the failsafes if you need to (rebind with the sticks and trims positioned where you want the failsafe positions to be).
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