 Following a 1937 decision to establish the first north Australian RAAF base , in April 1938 Eaton , now on the headquarters staff of RAAF Station Laverton , and Wing Commander George Jones , Director of Personnel Services at RAAF Headquarters , began developing plans for the new station , to be commanded by Jones , and a new squadron that would be based there , led by Eaton . The next month they flew an Avro <unk> on an inspection tour of Darwin , Northern Territory , site of the proposed base . <unk> meant that No. 12 ( General Purpose ) Squadron was not formed until 6 February 1939 at Laverton . Jones had by now moved on to another posting but Eaton took up the squadron 's command as planned . Promoted to wing commander on 1 March , he and his equipment officer , Flying Officer <unk> , were ordered to build up the unit as quickly as possible , and established an initial complement of fourteen officers and 120 airmen , plus four Ansons and four Demons , within a week . An advance party of thirty NCOs and airmen under <unk> began moving to Darwin on 1 July . Staff were initially accommodated in a former <unk> built during World War I , and life at the newly established air base had a " distinctly raw , pioneering feel about it " according to historian Chris Coulthard @-@ Clark . <unk> , though , was high . On 31 August , No. 12 Squadron launched its first patrol over the Darwin area , flown by one of seven Ansons that had so far been delivered . These were augmented by a flight of four CAC Wirraways ( replacing the originally planned force of Demons ) that took off from Laverton on 2 September , the day before Australia declared war , and arrived in Darwin four days later . A fifth <unk> in the flight crashed on landing at Darwin , killing both crewmen . 
