Menu

Ireland's sailing, boating & maritime magazine

Displaying items by tag: HMNB Devonport

The Royal Navy's Type 22 frigate HMS Chatham (F87) which recently returned to UK waters after a seven month deployment on anti-piracy duties off Somalia, visited Dublin Port last weekend, writes Jehan Ashmore.

HMS Chatham was the lead vessel for NATO's 'Operation Ocean Shield' as part of a multi-national task force in the seas off the African state that in recent years has become notorious for piracy.

HMS_Chatham_3

HMS Chatham departs Dublin Bay and the rocks off Dalkey Island. Photo: Jehan Ashmore /ShipSNAPS

The frigate departed Dublin on Monday afternoon and set an easterly course off the Baily Lighthouse, but surprisingly the 5,300 tonnes vessel returned into the bay. HMS Chatham then crossed the bay towards Sandycove. From there the 148m vessel which has a draft of 6.7m veered in a south-easterly direction, to sweep past off the rocky outcrop, to the north of Dalkey Island and continued southbound off The Muglins.

In mid-November the frigate visited her namesake port on the Medway to mark the 20th anniversary since the vessel's commissioning at Chatham in 1990. The occasion was also the first time that such an event had taken place outside a Royal Navy establishment. 

Built in 1988, the vessel was launched from the Swan Hunter shipyard on the Tyne and is normally based in her homeport of Devonport, Plymouth.

Published in Dublin Bay

Shipyards

Afloat will be focusing on news and developments of shipyards with newbuilds taking shape on either slipways and building halls.

The common practice of shipbuilding using modular construction, requires several yards make specific block sections that are towed to a single designated yard and joined together to complete the ship before been launched or floated out.

In addition, outfitting quays is where internal work on electrical and passenger facilities is installed (or upgraded if the ship is already in service). This work may involve newbuilds towed to another specialist yard, before the newbuild is completed as a new ship or of the same class, designed from the shipyard 'in-house' or from a naval architect consultancy. Shipyards also carry out repair and maintenance, overhaul, refit, survey, and conversion, for example, the addition or removal of cabins within a superstructure. All this requires ships to enter graving /dry-docks or floating drydocks, to enable access to the entire vessel out of the water.

Asides from shipbuilding, marine engineering projects such as offshore installations take place and others have diversified in the construction of offshore renewable projects, from wind-turbines and related tower structures. When ships are decommissioned and need to be disposed of, some yards have recycling facilities to segregate materials, though other vessels are run ashore, i.e. 'beached' and broken up there on site. The scrapped metal can be sold and made into other items.