Dear developers and community, as far as I know, ArmA3 uses the RotorLib from RTDynamics for the helicopter classes. Please correct me, if I am wrong.
Some people where complaining about the phyiscs of the fixed wing aircrafts in ArmA3. For example:
No Turning if the plane banks on one of its sides: http://feedback.arma3.com/view.php?id=16833
Plane handling issues: http://feedback.arma3.com/view.php?id=14463
Complainings about the flight model: http://feedback.arma3.com/view.php?id=18025
I am not an absolut expert of aerodynamics, but I think, the FixedWinLib of RTDynamics will maybe do a great job and improve the experience of flying an airplane.
What do you think about it?