HMS Mersey (P283)

2003 River-class offshore patrol vessel of the Royal Navy

For other ships with the same name, see HMS Mersey.

HMS Mersey, 2024

History
United Kingdom
Name| HMS Mersey
Operator| Royal Navy
Ordered| April 2001
Builder| Vosper Thornycroft
Launched| 14 June 2003
Sponsored by| Mrs Jennie Reeve
Commissioned| 28 November 2003
Homeport| HMNB Portsmouth
Identification|

* Pennant number: P283
* IMO number: 9261346
* MMSI number: 234637000
* Maritime call sign: GBSY

Status| In active service
Badge|
General characteristics
Class & type| River-class patrol vessel
Displacement| 1,700 tonnes (1,700 long tons)[1]
Length| 79.5 m (260 ft 10 in)
Beam| 13.5 m (44 ft 3 in)
Draught| 3.8 m (12 ft 6 in)
Installed power| 4,125 kW (5,532 hp) at 1,000 rpm
Propulsion| 2 × Ruston 12RK 270 diesel engines
Speed| 20 knots (37 km/h; 23 mph)
Range| 5,500 nmi (10,200 km; 6,300 mi)
Endurance| 21 days
Boats & landing
craft carried| Two rigid inflatable boats
Complement| 30
Armament|

* 1 × Oerlikon 20 mm cannon
* 2 × General purpose machine guns

Notes| Fitted with 25-tonne crane[2]

HMS Mersey is a River-class offshore patrol vessel of the British Royal Navy. Named after the River Mersey, she is the fifth RN vessel to carry the name and the first to be named Mersey in 84 years. Various tenders were renamed Mersey[3] during their service with Mersey Division Royal Naval Reserve (HMS Eaglet) between the early 1950s and late 1970s.

HMS Mersey was built by Vosper Thornycroft in Southampton, England to serve as a fishery protection vessel within the United Kingdom's waters along with her two sister ships Tyne and Severn. All three were commissioned into service in 2003 to replace the five older Island-class patrol vessels. She was commissioned into the Royal Navy on 28 November 2003. At that time, Mersey was not expected to commence duties until February 2004.

Mersey was the last Royal Navy ship to be launched from Vosper Thornycroft at its Woolston shipyard; Jennie Reeve, wife of Rear-Admiral Jonathon Reeve, Chief of Fleet Support, was the ship's sponsor.[4]

## Operational history

[edit]

Visiting Guyana in March 2016

For the first thirteen years of operation, Mersey carried out fishery protection duties around the United Kingdom.

In May 2012, Mersey became the first command of Sarah Oakley.[5]

In October 2013, Mersey was dry docked in Falmouth.[citation needed]

In January 2016, Mersey became the second River-class OPV to be deployed to the Caribbean Sea following on from her sister Severn in 2015. In May 2016, Mersey was dry docked in Martinique as part of her mid-deployment maintenance period. By July, Mersey had been relieved by RFA Wave Knight and was deployed on migrant patrols in the Aegean via a port call in Gibraltar. Mersey returned to Portsmouth on 10 February 2017 after 13 months away to resume her fishery protection duties.[6]

On 3 January 2019, Defence Secretary Gavin Williamson confirmed that HMS Mersey has been deployed to assist UK and French authorities with illegal migrant crossings in the English Channel.[7]

## Extended service

[edit]

On 24 April 2017, in a written answer to a question raised by Sir Nicholas Soames, Parliamentary Under-Secretary for Defence Harriett Baldwin stated that Mersey would be decommissioned in 2019.[8]

In March 2018, Baldwin's successor Guto Bebb revealed that £12.7M had been allocated from the EU Exit Preparedness Fund to preserve the three Batch 1 ships, should they be needed to control and enforce UK waters and fisheries following the United Kingdom's withdrawal from the European Union.[9]

On 22 November 2018, Defence Secretary Gavin Williamson announced that three Batch 1 River-class ships would be retained in service and forward operated from their affiliated ports.[10] However, the idea of forward basing the Batch 1s was reportedly later abandoned. The ships are now to be retained in service until around 2028.[11] In late 2023, Mersey began a major refit.[12] Mersey completed an eight month upkeep period in July 2024.[13]

## Affiliations

[edit]

* HMS Eaglet[citation needed]
* TS Ardent[citation needed]
* The Worshipful Company of Arbitrators[14]

## Freedom of Borough

[edit]

* Metropolitan Borough of Sefton \- 13 April 2023.[15]

## Citations

[edit]

1. ^ "Offshore Patrol Vessels". BAE Systems. Retrieved 8 June 2014.
2. ^ "River Class". Naval Technology. Retrieved 19 October 2019.
3. ^ Colledge & Warlow 2006, p. 224.
4. ^ "HMS Mersey to be final RN ship launched from Woolston". VT plc. [permanent dead link]
5. ^ John Periam, Geoffrey Lee, "LT CDR SARAH OAKLEY RN", shipsmonthly.com, 24 October 2013
6. ^ "Crowds gather to greet the return of HMS Mersey". ITV News. 10 February 2017. Retrieved 27 November 2018.
7. ^ Ministry of Defence [@DefenceHQ] (3 January 2019). "Defence Secretary Gavin Williamson has confirmed that @hms_mersey will deploy to the Dover Straits to assist the UK Border Force with migrant border crossings" (Tweet) - via Twitter.
8. ^ Harriett Baldwin, Parliamentary Under-Secretary for Defence (24 April 2017). "Warships and Submarines: Decommissioning: Written question – 71203". Parliamentary Debates (Hansard). House of Commons.
9. ^ Guto Bebb, Parliamentary Under-Secretary for Defence (16 March 2018). "Ministry of Defence: Public Expenditure: Written question – 132371". Parliamentary Debates (Hansard). House of Commons.
10. ^ "MoD lifts axe on three Royal Navy patrol ships to boost UK fishery protection". Southern Daily Echo. 22 November 2018. Retrieved 27 November 2018.
11. ^ "Batch I River Class OPVs extended in service until 2028". Navy Lookout. 20 October 2021. Retrieved 16 August 2022.
12. ^ @NavyLookout (7 October 2023). "@NavyLookout. @hms_mersey arrived in Portsmouth this week for final time before going into major refit" (Tweet). Retrieved 7 October 2023 - via Twitter.
13. ^ @NavyLookout (13 July 2024). "@NavyLookout. .@HMS_Mersey inbound to Devonport today after completion of 8 month upkeep period in Falmouth - looking immaculate in new Western Approaches paint scheme" (Tweet). Retrieved 15 April 2025 - via Twitter.
14. ^ "Home". The Worshipful Company of Arbitrators. Retrieved 5 June 2025.
15. ^ "HMS Mersey sails into Sefton for historic Freedom ceremony". mysefton.co.uk. 31 March 2023. Retrieved 14 April 2023.

## References

[edit]

* Colledge, J. J.; Warlow, Ben (2006) [1969]. Ships of the Royal Navy: The Complete Record of all Fighting Ships of the Royal Navy (Rev. ed.). London: Chatham Publishing. ISBN 978-1-86176-281-8.

## External links

[edit]

Wikimedia Commons has media related to IMO 9261346.

* "HMS Mersey". Royal Navy.

* v
* t
* e

River-class patrol vessels

Royal Navy|

* Mersey
* Severn
* Tyne
* Clyde
* Forth
* Medway
* Trent
* Tamar
* Spey

Royal Thai Navy|

* Krabi
* Prachuap Khiri Khan

Royal Bahraini Naval Force|

* Al-Zubara (ex-Clyde)

Brazilian Navy
Amazonas class|

* Amazonas
* Apa
* Araguari

List of patrol vessels of the Royal Navy

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Commissioned ships of the Royal Navy

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