Yesterday I was doing a second flight with a new quadrotor frame and had a rather ok loiter for stock pid settings. For about 13 minutes loitering went very well but then the quadrotor started rotating in air and I had to bring it down manually.
I am trying to learn the ropes of the Ardupilot. During my first flights in stabilize and alt hold modes I had everything going very well. Only thing that troubles me is that occasionally my quad-copter has a single Twitch. It does not seem t