Kloudy via AviationKB.com wrote:
Jay Honeck wrote:
An L-39 ain't a prop plane, however. It's a sleek, dart-like design
with stubby wings that would seem to offer little aerodynamic traction
for that kind of turbulence.

Those guys are also pulling considerable G's which will affect wake character.


Its too bad. Condolences to all. Indeed a tragic year.

This is true. I can attest to it. I was once in direct trail with an F8F
playing around in a tail chase down low. We were alternating in turn
direction. I was close in and he had enough g on his airplane to keep me
in his marbles but not enough to throw me out into overshoot. He went
hard left on me and I followed him into the turn, then he suddenly went
even harder left, going out to all the Bear would give him. As I
followed him I hit his vortex from the now greater alpha he was
generating. It was like flying into a wrench. It damn near inverted me.
Bottom line is hat it can REALLY get hairy following into a hard turn
close in and in trail like that.
The guys at Reno are well up on this and allow for it.
DH

--
Dudley Henriques