When I lived in Farnborough I could hear Concorde depart LHR if the wind was from the East, thats something like 22 miles.
Where I live now we have a farm strip, used infrequently by microlights, its attracted some noise complaints. These have been made to the council, but its obvious from the times and descriptions of type that any air movements in the area are attributed to the strip, when they obviously were aircraft just transiting through.
When sitting in said council office to discuss the complaints withe a council officer they exclaimed on hearing a engine noise outside “there’s one now, microlights are noisy”. It was the grass being mown just outside the window.
Incidentally I as a lad lived near Greenham when it was fully active with B47, KC97 and the odd B58, WB50, C124, C133 etc they were fantastic, especially the B47 stream take off’s that would wipe out best part of a school lesson with noise and smoke.

Richard