 The earliest recorded Air Corps use of the airport was when the 105th Observation Squadron began flying Douglas O-38 and North American O-47 light observation aircraft beginning on 24 September.In 1941, the airport came under formal military control and an immediate construction program began to turn the civil airport into a military airfield.Construction involved runways and airplane hangars, with three concrete runways, several taxiways and a large parking apron and a control tower.