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HMS Pembroke (M107)

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

HMS Pembroke
History
United Kingdom
NameHMS Pembroke
OperatorRoyal Navy
BuilderVosper Thornycroft
Launched12 December 1997
Commissioned6 October 1998
HomeportHMNB Clyde
Identification
StatusDecommissioned
General characteristics
Class and typeSandown-class minehunter
Displacement600 t (590 long tons; 660 short tons)[1]
Length52.5 m (172 ft 3 in)
Beam10.9 m (35 ft 9 in)
Draught2.3 m (7 ft 7 in)
Installed power
Propulsion
Speed13 kn (24 km/h; 15 mph)
Complement34 (accommodation for up to 40)
Sensors and
processing systems
  • Radar Type 1007 I-Band
  • Sonar Type 2093
Electronic warfare
& decoys
Armament

HMS Pembroke was a Sandown-class minehunter of the Royal Navy (RN), the second ship launched from the class' second batch, with several improvements over the first five built.

Posted for three years to the Persian Gulf between 2009 and 2012, Pembroke was later deployed in international exercises and historic unexploded ordnance detection in home waters.[3][4] She was the first of the RN Mine Countermeasures Vessels fitted with the Oceanographic Reconnaissance Combat Architecture system which replaced the previous NAUTIS system in early 2020.[5]

As part of RN plans to replace all mine countermeasures vessels with autonomous unmanned vessels, a decommissioning service and Freedom of Pembroke parade was held on 23 July 2023.[6][7] She was decommissioned as of January 2024[8] and to be renamed M271 Căpitan Constantin Dumitrescu when she enters Romanian Navy service.[9][10][11]

Design and description

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The Sandown-class minehunter was designed to complement the existing Hunt-class mine countermeasures vessel, by providing a cheaper alternative and specific mine hunting service. The Sandown-class vessels were delivered in two batches, with the first five ships delivered by Vosper Thornycroft to the Royal Navy by November 1994. The company was then awarded the contract for a second batch of seven vessels, of which Pembroke was the second.[12]

Ships of the Sandown-class had a hull constructed from glass reinforced plastic, and equipment on-board have a low magnetic signature. While under normal circumstances, the ship operates on diesel engines, when operating near mines she uses an electric drive system. In addition to the bow thrusters, she is also equipped with a Voith Schneider cyclorotor.[12] Further anti-mine equipment includes the Seafox mine disposal system.[13] Ships of the class were each equipped with a single 30mm DS30M Mk2 gun.[12]

Construction

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Pembroke operating in the Persian Gulf, 2011

Pembroke was constructed at the Vosper Thornycroft in Southampton, England. She was used for shock trials on the improvements made to the second batch of Sandown-class minehunters.[12]

Operational history

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Pembroke was posted to Persian Gulf duties in 2009, and spent the following three years conducting operations and exercises there. In 2012, she returned to HMNB Clyde. On the way, she and Middleton provided assistance to Delhi Express, a cargo vessel which had lost power while transiting the Gulf of Aden. Pembroke and Middleton protected the ship until it was under way once more, as the area is known for piracy.[14] During the mission to the gulf, the ship had been manned by seven different crews.[15] Upon returning to Faslane, she was placed in dry dock for two months for maintenance.[16]

Pembroke underwent a six-month period of support work and upgrades by Babcock International.[17] The upgrades included the installation of the Defence Information Infrastructure, which allows for information sharing across the entire defence network. Further work was taken to upgrade the high pressure air system as well as installing an expanded fire detection system. The work was completed by early 2014, when the ship underwent further sea trials.[18]

After a 300-pound (140-kilogram) mine was dredged up by a fishing boat in 2014, Pembroke detonated the mine using a Seafox anti-mine drone.[13] In 2015, she spent four months cooperating in operations with ships from the German, Polish, Belgian and Royal Dutch navies. During this time she located nine Second World War bombs, including a 500-pound (230 kg) bomb in the North Sea.[4] On 26 March, she visited the wreck site of the I-class destroyer HMS Isis and conducted a remembrance and wreath laying ceremony.[19] In preparation for a deployment to the Baltic Sea in April 2016, earlier that year, Pembroke took part in a series of training exercises including simulated attack by aircraft, gunnery, salvage and mine hunting.[4]

References

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  1. ^ "Sandown Class Mine Countermeasures Vessels - Specifications". GlobalSecurity.org. 11 July 2011. Retrieved 8 June 2014.
  2. ^ "In focus: the Fleet Solid Support ship design". Navy Lookout. 28 February 2023. Retrieved 14 April 2023.
  3. ^ "HMS Pembroke tackles Baltic mines during NATO Exercise". royalnavy.mod.uk. 7 June 2016.
  4. ^ a b c "HMS Pembroke goes to action stations during exercise off Scottish coast". Royal Navy. 1 March 2016. Retrieved 1 May 2016.
  5. ^ "HMS Pembroke gets new state-of-the-art minehunting system". royalnavy.mod.uk. 19 May 2020.
  6. ^ "Hundreds line the streets to bidfarewell to HMS Pembroke". Western Telegraph. 23 July 2023. Retrieved 24 July 2023.
  7. ^ Sinclair, Tom (23 July 2023). "Farewell to HMS Pembroke: An iconic Royal Navy vessel concludes its journey". The Pembrokeshire Herald. Retrieved 24 July 2023.
  8. ^ @NavyLookout (20 January 2024). "@NavyLookout HMS Bangor is the last Sandown class MCMV left in RN service. Images recently released of HMS Penzance decommissioning ceremony held before she left Faslane for the final time on 9th January" (Tweet). Retrieved 20 January 2024 – via Twitter.
  9. ^ Lucian Irimia (4 March 2024). "Nava cu două echipaje". presamil.ro (in Romanian).
  10. ^ @NavyLookout (28 September 2023). "@NavyLookout ex-HMS Blyth has been transferred to 🇷🇴Romania with, yet to decommission, @hms_pembroke to follow next year" (Tweet). Retrieved 28 September 2023 – via Twitter.
  11. ^ "Romania acquires 2 former Royal Navy's Sandown class minehunters". Navy Recognition. 29 September 2023. Retrieved 29 September 2023.
  12. ^ a b c d "Single Role Minehunter (SRMH)". Ministry of Defence. Archived from the original on 13 July 2001. Retrieved 1 May 2016 – via The National Archives.
  13. ^ a b "Royal Navy minehunter destroys 300lbs mine dredged up by fishing boat off Falmouth". Falmouth Packet. 9 June 2014. Retrieved 1 May 2016.
  14. ^ "Minehunter HMS Pembroke returns to Clyde naval base". BBC News. 3 September 2012. Retrieved 1 May 2016.
  15. ^ Mitchell, Ben (31 August 2012). "Royal Navy minehunter returns from Gulf duty". The Independent. Retrieved 1 May 2016.
  16. ^ "Pembroke receives a lift after Gulf exertions". Navy News. 9 October 2012. Archived from the original on 7 May 2016. Retrieved 1 May 2016.
  17. ^ "Babcock starts work on Pembroke". Babcock International. 24 June 2013. Retrieved 1 May 2016.
  18. ^ "HMS Pembroke Starts Sea Trials". World Maritime News. 9 February 2014. Retrieved 1 May 2016.
  19. ^ "NATO warships arrive in Falmouth". Falmouth Packet. 2 April 2015. Retrieved 1 May 2016.
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