No. 3 Service Flying Training School
... that heavy rain on its grass runway at RAAF Station Amberley in 1940 forced No. 3 Service Flying Training School to institute a 13-hour workday and fly at nearby airfields to maintain schedule?
... that heavy rain on its grass runway at <a href="./RAAF_Base_Amberley" id="mwD6U" rel="mw:WikiLink" title="RAAF Base Amberley">RAAF Station Amberley</a> in 1940 forced <b id="mwD6Y"><a href="./No._3_Service_Flying_Training_School_RAAF" id="mwD6c" rel="mw:WikiLink" title="No. 3 Service Flying Training School RAAF">No. 3 Service Flying Training School</a></b> to institute a 13-hour workday and fly at nearby airfields to maintain schedule?