I have to say that I believe Stewart to be severely mistaken and possibly mislead by one file at the Australian Archives as well as crew members memories.  That is not said to denigrate his work, which is awesome, but sometimes the memories of 80/90 year old sources is less than perfect. NAA: MP287/1, 2145 Series number: MP287/1 Control symbol: 2145 Barcode: 477315 Number of pages: 16 Title: Beaufort Project: Development of Twin 5" gun turrets, financial provision for.