During World War II, it provided local air defence for the Perth region, before undertaking Army co-operation duties in 1943–1944 and then converting to a heavy bomber role in 1945.
dˈʊɹɹɪŋ wˈɜːld wˈɔːɹ ɹˌoʊmən tˈuː, ɪt pɹəvˈaɪdᵻd lˈoʊkəl ˈɛɹ dᵻfˈɛns fɚðə pˈɜːθ ɹˈiːdʒən, bᵻfˌoːɹ ˌʌndɚtˈeɪkɪŋ ˈɑːɹmi kˈoʊˌɑːpɚɹˈeɪʃən dˈuːɾiz ɪn nˈaɪntiːnhˈʌndɹɪd fˈoːɹɾi θɹˈiː nˈaɪntiːnhˈʌndɹɪd fˈoːɹɾi fˈoːɹ ænd ðˈɛn kənvˈɜːɾɪŋ tʊ ɐ hˈɛvi bˈɑːmɚ ɹˈoʊl ɪn nˈaɪntiːnhˈʌndɹɪd fˈoːɹɾi fˈaɪv.