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H.M. Dockyard : ウィキペディア英語版
Royal Navy Dockyard

Royal Navy Dockyards were harbour facilities where commissioned ships were either built or based, or where ships were overhauled and refitted. Historically, the Royal Navy maintained a string of dockyards around the world; these publicly owned establishments were officially designated Royal Dockyards or HM Dockyards until the late 1960s (after which the term 'Naval Base' gained currency,〔 reflecting a change of emphasis from ship building and maintenance to accommodation and training of personnel). Today, the few shipbuilding/maintenance Yards that remain operational have been privatized (though they are still often called 'Royal' dockyards in common, if not in official, parlance).
==Function==

It should be noted that throughout its history, the Royal Navy has (when necessary) made extensive use of private shipyards and dockyards, both at home and abroad, and continues to do so. Nevertheless, since the reign of Henry VIII it has also made a point of establishing and maintaining its own dockyards. These Royal Navy Dockyards have always had a dual function: shipbuilding and ship repair/maintenance; historically, most yards provided for both, but some specialized in one or the other.
Dockyards were often built around a number of docks and slips. Traditionally, slipways were used for shipbuilding, and dry docks (also called graving docks) for maintenance; (dry docks were also sometimes used for building, particularly pre-1760 and post-1880). Regular hull maintenance was important: in the age of sail, a ship's wooden hull would be comprehensively inspected every 2–3 years, and its copper sheeting replaced every 5.〔English Heritage: Thematic Survey of Naval Dockyards in England〕 Dry docks were invariably the most expensive component of any dockyard (until the advent of marine nuclear facilities).〔
Royal Dockyards were generally established close to harbours or anchorages where Royal Navy ships were based. In addition to their docks and slips they had various specialist buildings on site: storehouses, woodworking sheds, metal shops and forges, roperies, pumping stations (for emptying the dry docks), administration blocks and accommodation for the resident officers.
While the term 'Dockyard' implies a yard with a dry dock, not all dockyards possessed one. Where there was no nearby dock available (as was often the case at the overseas Yards) ships would sometimes be careened (beached at high tide) to enable necessary work to be done. In the age of sail, wharves and capstan-houses were often built for the purpose of careening at yards with no dock: a system of pulleys and ropes, attached to the masthead, would be used to heel the ship over giving access to the hull.
Wet docks (usually called Basins) often accommodated ships while they were being fitted out. The number and size of Dockyard basins increased dramatically in the steam era. At the same time, large factory complexes, machine-shops and foundries sprung up alongside for the manufacture of engines and other components (not to mention, in due course, the metal hulls of the ships themselves).
One thing generally absent from the Royal Dockyards (until the 20th century) was the provision of naval barracks. Prior to this time, sailors were not usually quartered ashore at all, they were expected to live on board a ship (the only real exception being at some overseas wharves where accommodation was provided for crews whose ships were being careened). When a ship was decommissioned at the end of a voyage or tour of duty, most of her crew were dismissed or else transferred to new vessels. Alternatively, if a vessel was undergoing refit or repair, her crew was often accommodated on a nearby hulk; a Dockyard often had several commissioned hulks moored nearby, serving various purposes and accommodating various personnel, including new recruits.〔 Things began to change when the Admiralty introduced more settled terms of service in 1853; nevertheless, thirty years were to pass before the first shore barrack opened, and a further twenty years before barracks at all three of the major home Yards were finally completed.〔 Through the course of the 20th century these barracks, together with their associated training and other facilities, became defining features of each of these Dockyards.

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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