Thank you so much OwainGlyndwr!
Originally Posted by OwainGlyndwr
Complicated subject, but you will find a useful discussion on this (and much else) here:
DESIGN FOR AIR COMBAT - Главная
Go to Rolling Motion of an Aircraft
Great pleasure to discover many things in many domains, very clear, nobody may resist to that vortices' lift for the planes and the thought !
Thank you again!