page_title: HMAS Vigilant
section_title: Naval service
hierarchical_section_title: HMAS Vigilant / Naval service
caption_attribution_description: English: MV Neptuna explodes at Stokes Hill Wharf, Darwin, sending a column of débris and smoke hundreds of metres into the air. Directly in front of the explosion is the small Patrol Craft HMAS Vigilant which is undertaking rescue work. In the centre background is the floating dry dock holding the corvette HMAS Katoomba. In the centre foreground a lifeboat pulls away from the damaged SS Zealandia (right) which was dive-bombed and later sunk.
context_page_description: HMAS Vigilant was an auxiliary patrol boat serving with the Royal Australian Navy during the Second World War. Notably it was the 120th ship built by the Cockatoo Island Dockyard and the first aluminium ship built in Australia.
context_section_description: The ship was still undergoing sea trials when it was requisitioned by the Royal Australian Navy in October 1940, commissioning as HMAS Vigilant on 12 November 1940. It was classed as an auxiliary patrol vessel. It was initially equipped with a 3-pounder QF gun but this was replaced with a 20 mm Oerlikon. As well as the mounted gun, it carried a variety of light arms including a Bren light machine gun.
  Vigilant was transferred to Darwin, Northern Territory in 1941 and was used for protecting the harbour approaches. During the Bombing of Darwin, Vigilant engaged some of the attacking aircraft with its 20 mm Oerlikon and later assisted in picking up survivors from the water in Darwin Harbour.
  Vigilant, with a hold capacity of 7 tons, played an important role in the Battle of Timor from May 1942 and made several supply trips to the island. During one of these supply voyages, it assisted in the search for survivors from HMAS Armidale. During this time, it also resupplied corvettes operating in the Timor Sea with depth charges.
  HMAS Vigilant was renamed HMAS Sleuth on 17 April 1944 and HMAS Hawk on 13 March 1945. Hawk was paid off on 12 November 1945.
caption: The SS Neptuna explodes during the Bombing of Darwin on 19 February 1942. HMAS Vigilant is directly in front of the explosion.
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