Tom L. wrote:


Does anyone know whether big aircraft experience the bump at the
conclusion of their steep 360s?


I don't know, but I'm going to find out! I can envision an aircraft with
light wing loading, like a Cessna for instance, compressing the air
locally as it creates lift. After passage of the wing, the lift created
downwash would rebound upward, kind of like skipping a stone on the
water. The end result is that the downwash stays at a constant altitude,
or sinks MUCH more slowly than theory would indicate. Not a good
analogy, but you've got me thinking!

Rip