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Anchorage-class dock landing ship
The ''Anchorage''-class dock landing ships were a series of five dock landing ships (LSD) constructed and commissioned by the United States Navy between 1965 and 1972. US Navy decommissioned all five of them by 2003. They are succeeded by ''Whidbey Island''-class LSDs and ''Harpers Ferry''-class LSDs.
==Design and development==
The ''Anchorage'' class of dock landing ships was built as a replacement for the remaining aging war-built LSDs of the ''Ashland'' and ''Casa Grande'' classes. Their principal intended role was to carry additional landing craft to supplement those carried by the Amphibious transport docks (LPD)s, which carried less landing craft in order to accommodate more troops and cargo.〔〔Polmar 1981, pp. 144, 146.〕
The ''Anchorage'' class was slightly larger than the preceding ''Thomaston'' class, but were of generally similar design, with a large Well dock aft to accommodate landing craft, and a removable flight deck fitted above the well deck to allow the operation of helicopters, although no hangar was provided. The well dock was long and wide, and could accommodate three Landing Craft Utilitys or nine LCM-8 Landing Craft Mechanised.〔Polmar 1981, p. 146.〕 The ship could carry 375 troops compared with the 345 carried by the ''Thomaston''s,〔Polmar 1981, pp. 145–146.〕 while of vehicle parking space was provided.〔Baker 1998, p. 1046.〕
The ships were propelled by two geared steam turbines driving two shafts and giving a total of . This gave a speed of , the standard speed of the postwar US Navy amphibious fleet.〔〔Polmar 1981, p. 125.〕〔Gardiner and Chumbley 1995, pp. 549–550.〕 As built, the ships had a defensive armament of eight 3"/50 Mark 33 anti-aircraft guns in four twin mounts, while major sensors included SPS-10 surface search radar and SPS-40 air-search radar.
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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