On Tuesday, August 7, 2018 at 7:01:38 PM UTC-4, Tom BravoMike wrote:
How come nobody mentions positive faps in this discussion?
Am I missing sth? Are they useless in situations when the tug is too slow?
If so, why? Please illuminate me.

Flaps add a lot of drag. The first time I had a stall on tow,
I pulled down landing flaps, which recovered the stall and
almost put the towplane in the trees. I eased off the flap
and somehow he sped up without hitting anything.
Please do not try this at home.

Be safe out there,
Best Regards, Dave

PS: I think flaps do have the benefit of improving the lift
distribution on tow, which slightly compensates for the bad effects.