"No. 1 Air Performance Unit" . . . . . . . . . . . . "1941" . . . "ARDU" . "Aircraft Research and Development Unit RAAF" . . "No. 1 Aircraft Performance Unit" . . . "Aircraft Research and Development Unit" . . . . "Prove to Accomplish" . . . "Aircraft Research and Development Unit RAAF" . . "TESTER and DELTA (for formations)" . . "Testand evaluation" . . . . . "1943" .