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Aurora Australis (icebreaker)
''Aurora Australis'' is an Australian icebreaker. Built by Carrington Slipways and launched in 1989, the vessel is owned by P&O Maritime Services, but is regularly chartered by the Australian Antarctic Division (AAD) for research cruises in Antarctic waters and to support Australian bases in Antarctica.
==Design and construction==
Designed as a multi-purpose research and resupply ship, ''Aurora Australis'' was built by Carrington Slipways in Tomago, New South Wales. The vessel was launched in September 1989.〔
''Aurora Australis'' is long, and has a beam of , draught of and moulded depth of . Her displacement is 8,158 tons, gross tonnage 6,574 and deadweight tonnage 3,911 tons.〔 Her propulsion machinery consists of two Wärtsilä medium-speed diesel engines in father-son arrangement, one 16-cylinder 16V32D producing 5,500 kW and one 12-cylinder 12V32D producing 4,500 kW. Both engines are coupled to a single shaft through a reduction gear, driving a single, left-hand-turning controllable-pitch propeller in a nozzle.〔 Slow speed manoeuvring is achieved with three manoeuvring thrusters, one forward and two aft. ''Aurora Australis'' has a maximum speed of , and a cruising speed of .〔 The vessel can break level ice up to thick at .〔〔(Departmental investigation into the engine room fire onboard the Australian Antarctic Research and Supply Vessel Aurora Australis at the Antarctic ice edge on 22 July 1998 ). MIIU. Retrieved 2 April 2012〕
''Aurora Australis'' is served by a crew of 24〔 and carry up to 116 passengers accommodated in three or four-bunk cabins with attached bathrooms.〔〔 The ship has a cargo capacity of for break bulk or 29 twenty-foot equivalent containers, and a supply tank that can hold of fuel. The ship is fitted with laboratories for biological, meteorological, and oceanographic research, and was designed with a trawl deck for the deployment and recovery of research instruments while at sea.〔 The ship's hangar and helideck allow for the operation of up to three helicopters,〔 usually Eurocopter Squirrels or Sikorsky S-76s.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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