On 23/02/2014 03:14, son_of_flubber wrote:
Let's say I'm on low tow and fly perpendicular to the "tube" of rotor
(aka horizontal circular air flow/ vortex)...

The tug goes abruptly up, the glider goes abruptly down. When the
glider pulls down on the tug tail, can it increase the tug AOA and
stall the tug wings?


Maybe. I've never heard of it happening. The tug is also pulling the
glider nose up which will make it want to climb and reduce the downward
pull. We could place bets on who might win.

The actual answer is that if the tug pilot runs out of forward stick, he
has a big handle and a Tost release which reliably solve his problem.

GC