Hmmm Karl.. Well, I set up two totally different profiles in my controls.... one for aircraft and the other helicopters.. but there is a bug in the system..... helicopters use the legacy flight model, from my understanding, whereas aircraft use the Modern Flight model.
So if you use helicopter, try switching to the Flight Model > Legacy.
Here is a good video on the helicopter setup of the model as well as the controller setup.
LINK:
Norm