The Newtonian explaination of lift is partially but not completely correct. It only explains some of the lift which is empirically observed. Particularly the

The Newtonian explaination of lift is partially but not completely correct. It only explains some of the lift which is empirically observed. Particularly the "push air down" model; the tops of wings also pull air down along themselves (assuming there isn't flow separation, e.g. a stall) and direct it down. To really explain that flow you need fluid dynamics.