New South Wales Torpedo Corps Military organisation Volunteer navy unit formed with the construction of 2 torpedo-boats, Acheron and Avernus in 1878 to defend Sydney against the perceived threat of Russian warships off the coast. Type Military organisation {"name":"Military organisation","target":"","target_text":null,"date":{"#markup":"<span class='date'><\/span>"},"date_start":null,"date_end":null}