B-757
what you say is clear. I quote you "Same thing with the wings of an airplane in a turn, therefore there must be a difference in lift", so how do you explain the video I posted: the aircraft is in a 45 degrees bank steady, the pilot isn't touching the controls ( they are in neutral position) and the aircraft keeps going steady in the banked attitude without rolling; this give me the idea that the wings are producing the same amount of lift even in a turn. Am I missing something?