I am going back to flying one of my old planes, a Bixler 3 (Bix3) with a Pixhawk 2 currently loaded with Plane 3.7.1.
The model uses 6 servos: 2 aileron, elevators, rudder and 2 flaps. The Pixhawk is connected to a u-blox M8N GPS and is attached to a TBS crossfire RX connected via SBUS.
No airspeed sensor is attached.
Now the following question arises:
is it worth it to upgrade Plane from 3.7.1 to 4.0.x for the above config?
If yes, what are the benefits? Are there any risks? Do I need to re-run auto-tuning?
I read the guide about migrating from 3.7 to 3.8 (https://ardupilot.org/plane/docs/plane-3-7-to-3-8-migration.html). I am just interested to know if there’s more to do when upgrading to 4.0.