During low-altitude flight (1-10m), I do see dust on the ground surface, however there is no interaction between the helicopter rotor wash and the foliage (i.e. trees, bushes).
NOTE: Smoke also remains unaffected.
During low-altitude flight (1-10m), I do see dust on the ground surface, however there is no interaction between the helicopter rotor wash and the foliage (i.e. trees, bushes).
Fly about 5 meters above ground, you'll notice the heli does kick up dust, however tree branches and leaves remain undisturbed.