Monmouth Leaves for Post-docking Sea Trials
Type 23 frigate HMS Monmouth left Devonport Royal Dockyard today (Friday 12 June) to commence sea trials following a successful docking period undertaken by Babcock involving a programme of upgrades and deep maintenance, and which has contributed valuable information and experience to the Type 23 life extension programme.
HMS Monmouth now has improved sustainability and fighting capability as a result of a number of upgrades and improvements including Radar 996 replacement with Artisan 3D Medium Range Radar 997, Vertical Launch Seawolf midlife update, the installation of Automatic Small Calibre Guns, galley updates, installation of a chloropac system that reduces marine growth in the pipe system, and modifications to high pressure air systems to allow safer isolation of distinct sections.
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Deep maintenance work undertaken has included replacement or overhaul of all hull valves, shaft replacement, rudder inspections, revalidation of the hull and structures, renewal of high and low pressure air compressors and overhaul of special service air compressors.
A large re-preservation programme has also been carried out, involving a demanding requirement to remove all the dock blocks to survey and paint the hull – achieved through the use of an innovative Babcock-designed hydraulic lifting process.
The work package has restored HMS Monmouth’s fighting effectiveness as she emerges from what has been a challenging but successful period of deep maintenance.
Babcock Surface Combatant Programme Manager, Gary Simpson, commented: “HMS Monmouth has left for sea trials with significantly improved sustainability and capability and in excellent condition. This docking period has enabled us to gain further valuable experience and knowledge at Devonport that will contribute to our successfully delivering the extended operating life required for the rest of the class.”
Following several weeks of sea trials HMS Monmouth is due to return to the fleet in September, marking completion of the upkeep programme.
The refit was undertaken under the Surface Ship Support Alliance (an alliance between Ministry of Defence, Babcock and BAE Systems) Class Output Management (COM) arrangements.
Source : Babcock International
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