Oke today was a big day I had my first flight on autopilot. (I did not fly exualy)
Here are the setup and results:
ardupilot 2.1 with z sensor. plane little cessna (see my pics).
First I did a field setup to set up the home position. Pilot Marijn Penninx (he builds really great planes, check out www.scale-jets.com) took off and went to a safe alt. So he switched on the auto mode (RTL) and in one sec or less my plane was upside down. Something I did expect because I have noticed that the ir xy is doing the opposite so he got the plane back on the ground and we turned the fma xy 180 degrees (cable facing foreward). Plane back in the air. Safe Alt an auto (RTL) on, now it's responding as it should be. But it wobbles, the elevator is correcting too much. I have seen a little video on this site and they had the same problem (over correcting).
I need to alter the code so the elevation is less extreem. When I hold the plane in my hand and point the nose of the plane a bit down, I get full elevation. Where can I adjust this? And are there more settings I need to adjust to get more stability. I have tried to adjust some trim settings but then the plane started to spin down.
Pilot Marijn said to me that he uses not more then 10 % of stick to controll the plane.
- Need to understand why do I need to place the IR XY backwards (cable facing to the front);
- Need to fine tune elevation output on auto.
Suggestions and solutions are welcome...