I have a stock 500 DFC Pro with the AR7200bx on it. The tail was holding very good all the time (43% on the DX9) but as Im going into harder 3D now I noticed that the tail drifts (nose left) when I do hard tik toks for example.
I had the most drift when I pitched the heli full negative and than full positive, about 30 to 40 degrees. Than I started to do some changes in the parameter menu of the bx: Tail torque precompensation - tried every option. Heading lock amount - tried up to mid. The problem was still the same.
At least I gave more and more gyro sensibility on my DX9 and stopped at 63% as I noticed hard vibrations on the tail. But the drift on hard pitch pumps was still the same!! Nothing changed, not a bit.
The problem appears on 85% like on 95% throttle. Im flying with following V thottle curves:
idle up 1: 85 80 75 80 85
idle up 2: 95 90 85 90 95
My Pitch curves are straight 0% to 100% (+/- 13 degrees)
Has somebody an idea how to fix this issue?