I have modified my RCMAP channels order in my 3.5.7 copter running on a pixhawk 2.1 cube.
I use to run a TAER channel order in my Taranis TX and i have made the correct changes in RCMAP to reflect this fact. Radio calibration and RC control works great and radio FS is correctly configured. But i don’t fully trust that FS_THR_VALUE is still linked to arducopter’s standard channel 3 for throtle.
Is this issue corrected in this new versions of arducopter ?
I’m pretty sure that the RCMAP stuff properly handles the low throttle in both Copter-3.5.7 and newer version (i.e. 3.6.0). It should be possible to bench test it and confirm of course. Could you perhaps try removing the battery and then connect with USB to a GCS, then arm the vehicle in Stabilize (or any other mode) and then turn off the transmitter and see if it properly goes into failsafe?
Sorry to perhaps appear lazy, I just don’t have any reason to believe it doesn’t work…