One way to tell Boeing and Airbus aircraft apart is to look at the wingtips. The wingtips on the popularAirbus A320 family can also reveal which generation it is, as older A320s were originally built ...
W. Mangler, 1938, “The lift distribution of wings with end plates,” NACA TM 856; transl. by J. Vanier from “Die Auftriebsverteilung am Tragflügel mit ...