In the coming week , Dr Tom Lewis , author of The Empire Strikes Back, will give a talk about Japanese aircraft brought down over Australia during WW ll. Due to Allied action , Japan lost 62 aircraft over North Australia , a total aircrew of 186 died and were never buried . The last flight over Northern Territory airspace was on June 1944 , the last plane downed during the next month . Dr Lewis tracked down the families of some of those who perished over North Australia and its waters .