The first use of an airplane by the Forest Service was on June 29, 1915 when Chicago aviator Logan "Jack" Vilas began using his plane to spot forest fires.
Were a series of hangar fires in 1930 related to Capone's smuggling?
Chicago Municipal Airport was rocked the night of June 25, 1930 with an explosion in the Gray Goose hangar used by its subsidiary Stout Air Services. The resulting fire quickly spread to the adjacent hangar occupied by UATC, United Air Transport Corp. By the morning both hangars and 27 planes were destroyed in the conflagration. Most of the planes were tri-motors used by the airlines, along with some smaller ones housed in the hangars.