Originally Posted by
EEngr
Maybe its just me, but aircraft seem to do more rolling than either of the other two degrees of freedom.
It depends on the characteristics of the airframe. Of the two similar types of single-engined light aircraft I fly, for example, in turbulence the Cessna is much more unstable in roll, whereas the Piper is notably more unstable in pitch.
I have, of course, had several quite learned technical aerodynamic explanations for this about the differences between these two types. Unfortunately the explanations are all conflicting with each other !