I recently build a quadcopter using an APM 2.5 flashed with mission planner (MAC-version), using a Futaba 10C with an FrySky 8CH receiver (no SBUS). When I tried to fly it, roll and aileron behaved wrong, in a kind of inverted way, this although radiosetup showed correct controler movements. Throttle and yaw work ok.
Inverting channels on the transmitter makes everything worse.
I changed the radiocontrol to an TGY 9X, but with a similar effect. Then I flashed a brandnew APM 2.6 and used it with the Futaba, the result was likewise. Finally I took a FrySky receiver with an S-BUS, but nothing changed.
Searching the internet does not bring much answers.
What is wrong?
Yes, the controller is positioned correct.
Today I reversed pitch (which was reversed on the futaba transmitter to get it correct on the APM-planner), now it is in normal position on the transmitter but the wrong way on the APM-planner.
When I flew the drone in stabilized mode, initially everything seemed correct. After one minute, roll and pitch reversed again in a strange and unpredictable way. Due to the stabilized mode, it was easy to land.
Some extra information.
When I flash firmware with MAC APM Planner 2.0, the quadcopter hovers very stable but roll and pitch are unpredictable. When I flash firmware with Windows Mission Planner (using the wizard). I get following result:
I had the same problem like 2 weeks ago, I got a new frame and so i loaded the firmware 3.1 and calibrated it, when i went out to autotune. In Stab mode my reacted like it was a plus frame while my setup en config is a X frame. It behaived like a plus but not 100% more in twisted way. After whipping the eeeprom and reset the APM to factory defaulfts it`s working quite fine now.
