Page last updated at 02 Dec 2010

Major upgrades for HMS Kent

Type 23 frigate HMS Kent is to receive a number of significant upgrades in a substantial refit being undertaken by Babcock at Rosyth, which has recently started.

In what is a demanding and tightly scheduled project, which will further demonstrate Babcock's close long-term partnering relationship with the MoD, the fit of Sonar 2087, the tactical variable depth active and passive anti-submarine warfare (ASW) system, will involve significant structural modifications to the aft end of the ship. Further major upgrades will include the new DNA(2) Command System (central to the ship's fighting capability against air, surface and underwater threats); the SeaWolf mid-life update (SWMLU) comprising tracking, guidance and weapon management upgrades to counter evolving anti-ship missile threats; the 4.5 Mk8 Mod1 gun replacement; and new 30mm automatic gun fit. HMS Kent will also receive the new Defence Information Infrastructure (Future) (DII(F)) system, enabling information sharing and collaborative working across the defence sector network.

Additional notable upgrades include the 'globalisation' of the ship's entire ventilation system (involving a re-design of the air conditioning system for operation in extreme ambient temperatures); an upgrade to the high pressure air system (which will provide flexibility of supply); and the fit of an electro-catalytic chlorination system to provide safe and effective control of fouling and corrosion in sea water cooling circuits, which will in turn ensure unrestricted flow of cooling water helping to extend the life of affected equipment, optimise engine efficiency and aid efficient fuel consumption, and optimise air conditioning capacity.

These are among a total of 19 alterations and additions (A&As) that Babcock will be undertaking, which also include NATO radial filters to protect fresh air supplies from contamination, and a sophisticated incident detection system, the Nuclear Biological Chemical Defence Incident Surveillance System, as well as a galley equipment upgrade and habitability improvements, among others. These upgrades will be undertaken alongside a full programme of deep maintenance including structural repairs, renewal of hull coatings, and refurbishment and maintenance of all the ship's systems and equipment.

The programme is a challenging one, with a larger scope of work than the recent successfully completed refit on HMS Argyll to be undertaken within the same 50 week timeframe.

Babcock Project Manager Russell Glancy comments: "We will be building on the success of the recent Argyll contract and notably on continuing the strong spirit of partnering between all key stakeholders, including MoD, ship's staff and Babcock, to ensure an efficient and effective approach to meet the challenges of this project, deliver optimum value for money, and return HMS Kent on time and in budget to the MoD and Royal Navy."

MoD Programme Group Manager David Winstanley said: "Following on from the notable success of HMS Argyll's upkeep period, we are confident that the embedded partnering ethos will rise to the challenge of delivering the more demanding Kent programme to the same high standard achieved on her sister ship."

HMS Kent is due to leave Rosyth following the current upkeep period in November 2011.

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