sentences:  Hegenberger was a student at the Air Corps Tactical School at Maxwell Field, Alabama from September 1938 to June 1939.He then moved on to Fort Leavenworth, Kansas, where he completed the Command and General Staff School in June 1939.Hegenberger was assigned to Hickam Field, Hawaii, as operations officer of the 5th Bombardment Group in July 1939, and the following February became operations officer of the 18th Wing at Hickam Field.