HMNZS Hinau is launched – HMNZS Hinau (T17), was locally built and commissioned at Auckland on 23 July 1942. Known as a composite or LL minesweeper, she was fitted with electrical equipment to deal with magnetic mines. Hinau spent many months of service on the NZ coast, lengthy spells of harbour duty, and training cruises from port to port. The efficiency of her constant training was not put to a practical test for no magnetic mines were ever found or suspected in New Zealand waters. In 1946 she was placed in reserve and sold in 1955 to be used as a breakwater. She remains in this capacity (2007) at Kaiaua in the Firth of Thames, NZ.