What can cause throttle spikes in a plane?
So I was doing a mapping project, everything was fine when the plane doing automatic waypoint and Return to Launch.
After the plane arriving home, it’s loitering above the home point and suddenly stall. Fortunately, the operator has a good response and have control then landed the plane safely.
back to the office, I check the log, and there are 3 throttle spikes before the plane stall.
Throttle spikes happened after the stall, to try prevent stalling. Look at pitch and elevator.
Something was fishy before the stall, because with pulled elevator plane flown at ~8 deg pitch in level. Also during the whole flight elevator is pulled, perhaps a trim issue ?
Thank you for your input @Eosbandi , I will try to lower my elevator trim, this is a flying wing so it needs a little up trim. but it looks like I do it too much.
But, why my DesPitch is around 8 degrees, this means, the plane wants to do a pitch up, isn’t it?
