Turbulences are not activated in the FM but propwash generated by one plane onto another is. At least OFFLINE IMHO
By the way I mentionned earlier the excellent Flight Unimited sim that had Propwash, turbulences, wind, rain, a finely tuned FM (for teh leagcy planes : Grop, Pits,
SU26 ...) and a spectacular smooth full ATC never seen since anywhere else by myself.
That says a lot of what price we had to pay for nice graphics !
Pls Luthier if you ever happend to read this, bring us back to low polygons untextured world in your next patch !