 Pentland relinquished his RAF commission and returned to Australia at the end of the war , earning money by giving joyrides in an Avro 504K . Looking for a more secure future , he joined the newly established Royal Australian Air Force ( RAAF ) in August 1921 , following an interview with Wing Commander Stanley Goble , a wartime acquaintance through the RAF . Ranked flight lieutenant , Pentland was put in charge of the RAAF 's complement of S.E.5 fighters at Point Cook , Victoria , part of the Imperial Gift recently donated by Great Britain . The young Air Force had the atmosphere of a flying club , where everyone knew everyone else . Tensions sometimes arose between those who had served with British forces during the war , and those who had belonged to the Australian Flying Corps ( AFC ) ; the former considered that they were discriminated against when it came to filling senior positions , and came the day Pentland and fellow ex @-@ RAF member Hippolyte De La Rue threw an " uppity " AFC man into a mess fireplace . Deciding that his RAAF career was not progressing , Pentland applied for a short @-@ service commission as a flying officer with the RAF in 1923 , which was granted as of 23 April . He journeyed to Britain with new wife Madge ( née Moffat ) , who he married on 5 March , just before departing Australia ; they had one daughter , Carleen , the following year . Pentland completed the course at Central Flying School , Uphavon , and became an instructor there , gaining promotion to flight lieutenant before leaving the RAF on 20 July 1926 and returning to Australia . 
