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HMAS ''Onslow'' (SS 60/SSG 60) was one of six s operated by the Royal Australian Navy (RAN). The submarine was named after the town of Onslow, Western Australia, and Sir Alexander Onslow, with the boat's motto and badge derived from Onslow's family heritage. Ordered in 1963, ''Onslow'' was laid down at the end of 1967 by Scotts Shipbuilding and Engineering Company in Scotland, launched almost a year later, and commissioned into the RAN at the end of 1968. Although never involved in war, three major incidents occurred during ''Onslow''s career. The first occurred in 1972, when a disgruntled sailor who disobeyed orders caused the submarine to dive to almost twice her safe operating depth.〔 As a result, the RAN changed the Submarine Service from being able to "conscript" any sailor for submarine service to volunteer only.〔 The second happened in 1981, when carbon monoxide fumes from one of the diesel generators filled the submarine, resulting in the death of one sailor.〔 Although changes were made to submarine operating procedures, the boat's company was not provided with any psychological counselling, and the incident report remained classified until 2009.〔 The third was a controversial line-crossing ceremony in 1995, which resulted in restrictions being placed on similar ceremonies aboard RAN vessels.〔〔 During her career, ''Onslow'' became the first conventionally powered submarine to be fitted with anti-ship missiles, and was successful in wargames: "sinking" a seven-ship flotilla during Exercise Kangaroo 3 in 1980, and the United States supercarrier at RIMPAC 1998.〔〔〔〔 ''Onslow'' was decommissioned in 1999, and was presented to the Australian National Maritime Museum, where she is preserved as a museum ship. ==Design and construction== ''Onslow'' was one of four ''Oberon''-class submarines ordered in 1963.〔 The last of this group, ''Onslow'' was laid down by Scotts Shipbuilding & Engineering Co. in Greenock, Scotland on 4 December 1967.〔 She was launched by Princess Alexandra, The Honourable Lady Ogilvy on 3 December 1968, and commissioned into the RAN on 22 December 1969.〔White, ''Australian submarines'', p. 199〕 The boat was named after the coastal town of Onslow, Western Australia, which was in turn named after Sir Alexander Onslow, the third Chief Justice of Western Australia.〔 ''Onslow''s motto, ''Festina Lente'' (Latin for "Hasten Slowly"), is shared with the Onslow family, and the ship's badge contains a judge's wig.〔White, ''Australian submarines'', p. 200〕 Although this was the only use of the name by the RAN, two surface ships of the Royal Navy have previously been named .〔 The submarine is long, with a beam of , and a draught of when surfaced.〔 At full load displacement, ''Onslow'' displaces 2,030 tons when surfaced, and 2,410 tons when submerged.〔 The two propeller shafts are each driven by an English Electric motor providing 3,500 brake horsepower and 4,500 shaft horsepower; the electricity for these is generated by two Admiralty Standard Range supercharged V16 diesel generators.〔 These could propel the submarine at up to on the surface, and up to when submerged.〔 ''Onslow'' had a maximum range of at , and a test depth of below sea level.〔〔 When launched, the boat had a company of 8 officers and 56 sailors, but by the time she decommissioned, the number of sailors had increased to 60.〔〔 In addition, up to 16 trainees could be carried.〔 Unlike other submarines in her class, ''Onslow'' was fitted with a four-man diver access hatch, allowing for easier deployment and recovery of special forces divers.〔Shaw, ''HMAS Onslow'', p. 10〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「HMAS Onslow」の詳細全文を読む スポンサード リンク
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