Please have a look on the new track file. During this track I was testing the difference between CD/REL and AFCS.
In the end of the track you will see that the heli starts "diving" again. I was pushing the trim button to the top right corner. No real input was recognized but after I have released the trim button to the middle position the nose of the helicopter goes down.
Let we know if you need another view or something else.Trim_1.trk