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HMAS ''Waterhen'' is a shore establishment of the Royal Australian Navy (RAN), located in Waverton, Sydney. Constructed on the site of a quarry used to expand Garden Island in the 1930s, the location was used during World War II as a boom net maintenance and storage area. In 1962, the area was commissioned as a base of the RAN, and became home to the RAN's mine warfare forces. ''Waterhen'' was the first small-ship base established by the RAN, and from 1969 to 1979 was also responsible for the RAN's patrol boat forces. ==History== Prior to the 1930s, the area on which ''Waterhen'' is constructed was a large hill overlooking Balls Head Bay. In the 1930s, the decision to construct a graving dock and landbridge connecting the naval base at Garden Island to the mainland at Potts Point led to the quarrying of this hill for sandstone, which altered the geography to a sheer cliff-face and near-water level plateau. The site was populated with fibro buildings during the leadup to World War II, and during the war was used to store spare netting for the Sydney Harbour anti-submarine boom net.〔 The area was under military control from 15 March 1943 until the end of the war: the first three months under joint Royal Australian Navy-United States Navy control.〔 The location reverted to a storage site after the conclusion of World War II, but in the early 1960s was earmarked as the future base for the RAN's minesweeping forces: six ex-Royal Navy ''Ton'' class minesweepers and a Clearance Diving Team, with the base commander to simultaneously hold overall command over these forces.〔 Commissioned into the RAN as HMAS ''Waterhen'' (following the Royal Navy practice of treating naval bases as 'stone frigates') on 5 December 1962, ''Waterhen'' was the first 'small-ship' base to be established by the RAN.〔 At commissioning, there were minimal facilities available: the ''River'' class frigate was relocated to the northern wharf in December 1952 and used as a barracks ship until June 1971.〔Bastock, John. "Australia's Ships of War", Angus & Robertson, Sydney, 1975. ISBN 0-207-12927-4〕 In March 1969, following the introduction of the ''Attack'' class of patrol boats, the base's role was expanded to include command of the RAN's patrol boat forces: the base commander held the position of Commander Australian Mine Warfare and Patrol Boat Forces.〔 The command roles were split again in 1979, with the command of patrol boat forces relocated to in Queensland.〔 The 1980s saw an attempted upgrade to the minesweeper fleet with the development of the Bay class minehunters, with the first two ships of the class, HMA Ships and assigned to ''Waterhen''. The ''Bay''s did not enter service until 1993, and problems with their sonar and seakeeping ability saw the other four ships of the class cancelled and forced the RAN to rely on a force of minesweeper auxiliaries converted from acquired civilian vessels and also based at ''Waterhen'' until the development of the ''Huon'' class minehunters in the late 1990s.〔David Stevens et al. (2001). ''The Royal Australian Navy'', pg 275〕 In 1994, the same year the ''Huon'' class project began, it was recognised by the RAN that the facilities at Waterhen needed to be upgraded.〔 Over a period from December 1994 to December 1996, the entire base was levelled, with new buildings, wharves, and facilities installed.〔 The upgrade cost A$70 million and was completed eight months ahead of schedule.〔 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 Waterhen (naval base)」の詳細全文を読む スポンサード リンク
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