Was just going to post this.
I noticed it first in the TA at Bishop A1 with a B-17. Moved to a different Bishop field in TA and got same results.
Went to the open LW Orange arena to see what would happen there and rolled a B-17 from A1, I think it was, and the wheel dust did act correctly turning off after wheels left the runway.
Forgot to add, if this could be turned on and off at a certain altitude, Con-trails
On the other hand, unless you were over a runway, the con-trail would be green/brown.
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Yes I know the position of the graphic would need to be adjusted <
