Originally Posted by HansenTsang

A closer look is even fun, though, so I tried to sketch (by hand) what Hansen explained (see attached pdf). It's still simple (no math) and maybe even naive but it should sum up which forces and moments (torques) are acting on the C/G. It turns out that the side thrust slightly increases the "pendulum effect" (by 1.6 Ncm) around the roll axis and by far not compensates this effect (by 1.0 Ncm) around the yaw axis. Hence there must be more factors acting - as expected.

It is a lot of fun to try and figure out, especially when using a diagram. Thank you. We will never know what is "really" going on when the plane is in the air.