Would some advocate of the Newtonian explanation tell us how it explains the presence of those strong vortices at the outer ends of flaps or wings?
The aircraft is planing through the air, the weight of the aircraft, with angle of attack of the wings, compresses the airmass to provide level flight. (notice as the aircraft fuel load lightens, the angle of attack to fly level is reduced.)
The wing section is constantly changing, with the leading edge sweep angle, thickness, and width. The combination of angle upward of the bottom of the wing, and the component airflow direction over the top, causes the rollup, while the air beyond the wing tip will rollover the compressed section of air created by the aircraft passing through....
A surface vessel wake does not compress the water, and the vessel moving through, does not create a wake that sinks into the water
The aircraft wake is compressed, and with the combination of the 2 counter-rotating vortices, will sink to a certain altitude until crow instability occurs.
