Just finished my build and got it into the air for the first time, the aircraft seems to be “stable” (as in, doesn’t oscillate or twitch) BUT, it seems to want to wander in a large radius from its GPS point in modes like Loiter. I set it into autotune mode on chan 7 of the TX, and it began tuning, but then just randomly fell from the sky, so I am currently fixing the motor arms that came loose and such, luckily no major damage.
I have a fairly small log file to share, in the hopes that you guys can point me in the direction of why this guy is wandering so much.
the frame is a 350mm quad frame, with MRT 800kv motors, BLHeli_S 35a 4 in 1 esc, and controlled by a spektrum dx9 with a spektrum receiver.
I am running on APM 3.5
Any info is appreciated!