The new feature of smoke and particles being influenced by the downwash from a helicopter is excellent, but the dissipation is very low, leaving rather strange-looking smoke trails and arcs on the ground in the distance. The smoke should dissipate more widely and/or quickly.

When downwash causes a change in velocity (i.e. speed & direction) to smoke particles, the change should be randomised slightly more. The closer the helicopter is to the smoke and the higher the change in velocity that occurs, the higher the dissipation should be.

Very minor issue, just for consideration. {F18570}