Read more about this at the link below. From : The Royal Australian Air Force (RAAF) - Aircraft - Fighting the U-boats - uboat.net Fighting the U-boats Aircraft & Air forces The Royal Australian Air Force (RAAF) 'Caught on the Surface'. The sinking of U-461 by an RAAF Sunderland, 461/U, in the Bay of Biscay in July 1943, as depicted by aviation artist Robert Taylor. INTRODUCTION Despite the fact that Australia is situated quite literally at the other end of the Earth from the North Atlantic Ocean, Australian airmen were intensively involved in fighting the U-boats throughout WW2.