Hello everyone, I apologise if this topic is already covered, I’ve looked everywhere and not found an answer.
So I’m back on arduplane after about a decade of life based distraction and have found a small problem I cannot seem to fix.
I’ve uploaded a log to google drive with the link below. During this realflight SITL flight in ACRO mode I did four relatively large up and down pitch commands with wings level and all is fine. However, during the following three very small pitch up commands it seems rcin vs rcout is overall opposed, giving an obvious pitch down result. At the same time attitude demanded vs actual attitude are pretty close, so it seems the computer is getting what it thinks it should be.
Stall speed is approximately 10m/s and this manoeuvre was done at 19m/s, having read the section on stall prevention I don’t think it effects ACRO mode.
At the moment I simply don’t know what is causing this, any help and wisdom will be very gratefully received.
Thanks, Ed.