 No. 77 Wing was a Royal Australian Air Force ( RAAF ) wing of World War II . It formed part of No. 10 Operational Group ( later the Australian First Tactical Air Force ) at its establishment in November 1943 , when it comprised three squadrons equipped with Vultee Vengeance dive bombers . No. 77 Wing commenced operations in early 1944 , flying out of Nadzab , Papua New Guinea . Soon afterwards , however , the Vengeance units were withdrawn from combat and replaced with squadrons flying Douglas Bostons , Bristol Beaufighters and Bristol Beauforts . The wing saw action in the assaults on Noemfoor , Tarakan , and North Borneo , by which time it was an all @-@ Beaufighter formation made up of Nos. 22 , 30 and 31 Squadrons . It was to have taken part in the Battle of Balikpapan in June 1945 , but unsuitable landing grounds meant that the Beaufighter units were withdrawn to Morotai , sitting out the remainder of the war before returning to Australia , where they disbanded , along with the wing headquarters , in 1946 . 
