Hi all,
I am trying to tune a dual motor non-vectored tailsitter tailsitter without success. Transition from QSTABILIZE to FBWA was oscillatory but eventually the plane stabilized. But then every 2-3 secs big oscillations occurred and the plane crashed. The strange thing is that I am using pretty low PID gains (the default ones) and the Feedforward gains seem to be fine according to the docs procedure.
What I am thinking is that the default PID gains are small in general but since my platform has big elevons the gains may be big eventually.
Any ideas on how to debug this?
Photo below depicts pitch, roll, and elevons deflection (servos digital values not angles)
Flight log: 2024-09-05 17-23-36.bin - Google Drive