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After Autotune plane out of control at take off

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@lucamax wrote:

I have a very little experience with planes and the plane is a little bastard, a 60 cm delta wing , Skywalker X1, 300 grams, the plane was flying well in FBWA even if turns were very very wide , 60 meters of diameters, so I did the Autotune , the value of Servo Roll P dropped from 0,85 to 0,388 while I remains to 0,07 .
I was able to land then disarm and change the battery.

At new take off the plane did not respond to aileron stick , all way to the right (I believe so but must say that I was in panic) and the plane went left and crashed on a tree out of control .

Is it possible that Roll P was so low that aileron command was too little ?
Thanks for looking at the .Bin file and help me to understand what happened.

32.zip (3.4 MB)

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