 The farm was converted to a 100-acre flying site complete with a World War I hangar moved from Memphis and was known as Blackwood Field.On 4 December 1921, the unit received federal recognition and was designated the 136th Air Observation Squadron, flying four new Curtiss JN-6HG "Jennys" and one DH-4B DeHavilland aircraft.On 20 July 1923, the 136th Observation Squadron was redesignated as the 105th Observation Squadron.