Movatterモバイル変換


[0]ホーム

URL:


Jump to content
WikipediaThe Free Encyclopedia
Search

HMSOcean (L12)

From Wikipedia, the free encyclopedia
1998 unique amphibious assault ship of the Royal Navy
For other ships with the same name, seeHMS Ocean.

History
United Kingdom
NameHMSOcean
OperatorRoyal Navy
Ordered11 May 1993
BuilderVickers Shipbuilding and Engineering Ltd,Kværner (Govan)
Laid down30 May 1994
Launched11 October 1995
Sponsored byQueen Elizabeth II of the United Kingdom
Commissioned30 September 1998
Decommissioned27 March 2018[1]
RefitMajor 2012–2014
HomeportHMNB Devonport,Plymouth
Identification
MottoEx undis surgit victoria (From the waves rises victory)
Honours &
awards
Al Faw 2003
FateSold to Brazil[2]
Badge
Brazil
NameNAMAtlântico
OperatorBrazilian Navy
AcquiredPurchased on 19 February 2018, from theRoyal Navy
Commissioned29 June 2018
HomeportArsenal de Marinha do Rio de Janeiro
Identification
MottoNosso navio, nosso mar(Our ship, our sea)
StatusActive
Badge
General characteristics
Class & typeLanding Platform Helicopter
Displacement21,500 t (21,200 long tons; 23,700 short tons)[4]
Length203.4 m (667 ft)[5]
Beam35 m (115 ft)[5]
Draught6.5 m (21 ft)[5]
Propulsion2 × Crossley Pielstick 12 cylinder
Speed18 knots (21 mph; 33 km/h) cruise
Range8,000 miles (13,000 km)[6]
Boats & landing
craft carried
Capacity40 vehicles[5]
Troops830Royal Marines[5]
Crew285 + 180FAA/RAF[5]
Sensors &
processing systems
Electronic warfare
& decoys
  • UAT Electronic Support Measures
  • DLH decoy Launchers
  • Surface Ship Torpedo Defence (SSTD)
Armament
Aircraft carried
Aviation facilities
  • Large flight deck
  • Hangar deck
  • Helicopter lifts
  • Vehicle deck
Stern view showing ramp and davits
HMSOcean showing landing craft on davits and stern ramp deployed

HMSOcean was aLanding Platform Helicopter, formerly the UK'shelicopter carrier and thefleet flagship of theRoyal Navy.[7] She was designed to support amphibious landing operations and to support the staff of Commander UK Amphibious Force and Commander UK Landing Force. She was constructed in the mid-1990s byKvaerner Govan on theRiver Clyde and fitted out byVSEL atBarrow-in-Furness prior to trials and subsequent acceptance in service.Ocean was commissioned in September 1998 at her home portHMNB Devonport,Plymouth.

In December 2017, theBrazilian Navy confirmed the purchase of the ship for £84.6 million. Following her decommissioning from Royal Navy service on 27 March 2018, she arrived in Rio de Janeiro on 25 August 2018,[8] rechristened as theAtlântico and now serves as the flagship of the Brazilian Navy.[9]

Background

[edit]

An invitation to tender for a newhelicopter carrier was issued in February 1992.[10] In February 1993The Times reported that the carrier faced cancellation due to budgetary constraints.[11] However, at approximately the same time, British forces were engaged in operations in theBalkans, which saw theRoyal Fleet Auxiliary's aviation training shipRFAArgus pressed into service as an amphibious transport ship.Argus's accommodation and facilities proved inadequate for the needs of a large Embarked Military Force (EMF), which emphasised the need for a purpose-built platform.[3] On 29 March 1993, the defence procurement minister announced that development of the new Landing Platform Helicopter (LPH) was proceeding.[12] Two shipbuilders tendered for the contract – Vickers Shipbuilding and Engineering Ltd (VSEL) andSwan Hunter. On 11 May 1993, the government announced that VSEL had won the contract.[13] The build was to commercial standards, reducing costs significantly and leading to a construction spend of £154 million (£396 million in 2023),[14], comparable to that of aType 23 frigate. VSEL, a warship manufacturer, sub-contracted the build phase to the commercial Kværner yard inGovan, Glasgow.

That VSEL's bid was £71 million lower than Swan Hunter's was the source of political controversy and led to aNational Audit Office investigation to determine whether the competition was fair. The report, published on 29 July 1993, stated that, although VSEL did subsidise its bid, theMinistry of Defence (MOD) was right to award the contract to VSEL because the subsidy was much smaller than the difference between the two bids; VSEL's bid was £139.5 million compared to Swan Hunter's £210.6 million.The Times also suggested that the subsidy was as little as £10 million.[15] In anticipation of the report, theFinancial Times described the different philosophies adopted by the two bidders; while Swan Hunter viewed the ship as entirely military, "VSEL thought the design was basically a merchant ship with military hardware bolted on." VSEL's decision to sub-contract the build phase took advantage of lower overheads at a civilian yard as well as efficiency drives by its parent, Kværner.[16]

Launched on 11 October 1995, she was subsequently named at Barrow byQueen Elizabeth II on 20 February 1998, prior to delivery to Devonport. In her sea trial, she reached a maximum speed of 20.6 knots (38.2 km/h; 23.7 mph); however, her usual top speed is 18 knots (33 km/h; 21 mph).[17]

Role

[edit]

Ocean was designed to provide the amphibious assault capabilities last offered byAlbion andBulwark. She can deploy an Embarked Military Force (EMF) of aRoyal MarinesCommando Group from3 Commando Brigade supported by aircraft and landing craft. The ship's company included 9 Assault Squadron (9 ASRM) from1 Assault Group Royal Marines whose primary role is as an Amphibious Assault Squadron. Secondary tasks include boarding parties, beach reconnaissance and providing amphibious knowledge to the ships Command. Besides these roles they have responsibilities within the ship which include firefighting, watchkeeping and security. 9 ASRM is divided into a HQ unit, Landing Craft Troop, Signals detachment, Vehicle Deck Party and Assault Supply Team.[18]

HMSOcean was also capable of limited anti-submarine warfare activities, supporting afloat training and acting as a base facility for other embarked forces includingcounter-terrorism units.

The ship was capable of carrying four to sixWestland Apache AH1 helicopters operated by theArmy Air Corps, as well as helicopters of the Fleet Air Arm (Seaking Mk4) andRoyal Air Force, including the larger twin-rotorBoeing Chinook transports. Prior to their retirement,Ocean could transport up to fifteen fixed-wingHarrier[19] V/STOL aircraft ofJoint Force Harrier in the ferry role, but was unable to operate as a fixed-wingaircraft carrier because she lacked theski jump that is needed to launch a fully loaded Harrier.[citation needed]

For the2012 London Olympics, she carried four Army Air Corps and fourFleet Air ArmWestland Super Lynx helicopters, to deploy special forces and conduct other missions in a security role.[20]

FourLanding Craft Vehicle and Personnel (LCVPs) were permanently embarked and manned by9 Assault SquadronRoyal Marines.[21]

Operational history

[edit]

1998–2000

[edit]
US Marines ride the forward aircraft lift intoOcean's hangar deck during an exercise in 1999.

Weeks after being commissioned,Ocean was undertaking the warm water element of her first-of-class trials, when she was deployed on short notice to the coasts ofHonduras andNicaragua to providehumanitarian assistance in the aftermath ofHurricane Mitch.[22] In early 1999,Ocean was scheduled to take part in an exercise in the Atlantic, but was diverted to the Mediterranean in readiness for possible deployment toKosovo.[23]

During 2000,Ocean supportedOperation Palliser in Sierra Leone, joiningIllustrious in aiding the suppression of rebel activity with her own embarked force, and providing support facilities for the Spearhead battalion ashore.[24]

2001–2010

[edit]

On 17 February 2002, whilst under command of CaptainAdrian Johns, a unit of Royal Marines fromOcean accidentally landed on the San Felipe beach in the Spanish town ofLa Linea instead ofGibraltar, causing a minor diplomatic incident as various media outlets labelled the mistake as an "invasion".[25]

Ocean was the flagship and spearpoint of a large Royal Navy task force deployed forOperation Telic, the UK contribution to the2003 Iraq War, for which she was awarded a new battle honour "Al Faw 2003".[26] In the helicopter assault role she was accompanied byArk Royal.

She was awarded theFreedom of the City ofSunderland on 26 July 2004.[27]

In the summer of 2006, under the command of CaptainChristopher Clayton, the ship was deployed as part of the task force involved in the Aurora exercises on the eastern seaboard of the United States. Clayton was later succeeded by CaptainTony Johnstone-Burt.[citation needed]

In 2007,Ocean began her first long refit period. This was carried out byDevonport Management Limited at theirDevonport Royal Dockyard facility and lasted around 12 months. Following this major period of maintenance and upgrading work,Ocean sailed from Plymouth on Wednesday 24 September 2008 to start sea trials.[28] As part of that upgrade, aPyTECpyrolysising waste recycling unit was fitted.[29]

On 18 February 2009,Ocean sailed from Devonport as part of theTaurus 09 deployment. She was joined on this deployment by the landing platform dockBulwark, as theflagship of the group, which includedType 23 FrigatesArgyll andSomerset and four ships of the Royal Fleet Auxiliary.[30] This exercise was filmed for the second series of theChannel 5 documentaryWarship. In June 2009,Ocean took part in exercise Bersama Shield with HMSSomerset andRFA Wave Ruler off theMalay Peninsula.[31]

During theair travel disruption after the 2010 Eyjafjallajökull eruption, Prime MinisterGordon Brown assignedOcean and other units to rescue stranded travellers and army personnel across theEnglish Channel inOperation Cunningham.[32]

In 2010, the ship was sent on a multi-purpose deployment. This started with exercise Auriga on the eastern coast of the US.[33] She then moved to Brazil to conduct an exercise with the Brazilian marines; whilst there a defence co-operation agreement was signed on board.[34] She then crossed the Atlantic to Nigeria to participate in the "Nigeria at 50" presidential fleet review and provide training to the Nigerian navy as part of the African partnership programme.[35][36] She returned to Devonport in November.[37]

2011–2018

[edit]
HMSOcean deployed for the2012 Olympic Games

In April 2011, while under command of CaptainKeith Blount, the ship took part in the COUGAR 11 deployment under the ultimate command ofCommander Amphibious Task Group (CATG). During this deployment, she took part in Exercise Cypriot Lion.[38]

In May 2011, she was detached from CATG's COUGAR 11 deployment and sent with embarked Apaches to aidoperations in Libya along with the attack helicopters aboard the French amphibious assault shipTonnerre (L9014).[39][40][41] This was the first time that Apache helicopters were sent directly into action from a Royal Navy ship.[42] Her initial complement of three Apaches was bolstered by a fourth soon after, and later a fifth.[43][44] The deployment included a large medical team, a sign of the ship's flexibility.[45]

Apache andChinook training onOcean in November 2014 following her refit

On 4 May 2012, she moored atGreenwich to prepare for her role of providing logistics support, accommodation and a helicopter landing site during theLondon 2012 Olympic Games.[46] From 24 to 28 May 2012, she visited Sunderland, her affiliated port, and made other port calls before returning to London on 13 July.[47][48] After Olympic duty,Ocean returned to her home port of HMNB Devonport for a scheduled period of maintenance.[49] The LPH role was provided byHMS Illustrious until 2014. On 22 July 2014,Ocean took over the helicopter carrier role again, after her 15-month, £65 million refit, replacingIllustrious, which then returned to her home port Portsmouth for the last time, being decommissioned on 28 August 2014. As part of the Response Force Task Group COUGAR 14 deployment,Ocean participated in exercises off Albania and France.[50][51]

In April 2015Ocean took part inExercise Joint Warrior 15-1 around the coast of Scotland, withWildcat helicopters landing on her for the first time.[52][53] She then stopped again in Sunderland where the ship's company exercised their right to the freedom of the city, with more than 300 officers and ratings parading through the city centre.[54]

Ocean became theRoyal Navy Fleet Flagship in June 2015.[7][55] In December 2015, she returned to port after Exercise COUGAR 15, an amphibious warfare exercise in the Mediterranean with theFrench Navy.[56]

In September 2016, Ocean left Devonport for the inaugural Joint Expeditionary Force (Maritime) (JEF(M)) Task Group deployment which is the successor to the annual Cougar deployments. The bulk of this deployment took place East of Suez and demonstrated the UK's ongoing ability to deploy highly effective and combat capable maritime forces anywhere in the world.[57]The core task group included theLSDRFAMounts Bay (L3008), MOD strategicRo-Ro vesselMV Eddystone andHMS Bulwark (L15). Elements of the Royal Marines42 Commando, were spread across the force. Frigates and Destroyers from the Royal Navy and French Navy joined throughout the deployment.[57]On the 60th anniversary ofOperation Musketeer,Ocean became the flagship ofCOMATG. This marked the end of the JEF(M) deployment.

On 25 November, the ship rendezvoused withUSS Dwight D. Eisenhower (CVN-69). COMATG assumed command of the U.S.Task Force 50, becoming Commander, Task Force 50 (CTF 50).[58] Due to the U.S. Navy gap in carrier coverage in the Middle East, this was the first time a Royal Navy vessel had commanded the U.S. formation responsible for maritime war fighting in the Persian Gulf, Red Sea, Gulfs of Aden and Oman and the Indian Ocean. On 24 MarchOcean returned to Devonport. During the deployment she steamed 23,000 miles, visited 11 countries, provided a platform for six British ambassadors and High Commissioners and was home to up to 1150 service personnel.

At the end of August 2017,Ocean left Devonport for her final deployment, scheduled to take over asStanding NATO Maritime Group 2 flagship in the Mediterranean.[59] Before she could relieveHMS Duncan (D37) with SNMG2,Ocean was redeployed to assist in disaster relief efforts followingHurricane Irma in the Caribbean, and then the subsequentHurricane Maria.[60]

Ocean was decommissioned on 27 March 2018 at HMNB Devonport, with Queen Elizabeth II attending the ceremony.[1]

Sale to Brazil

[edit]
Main article:Brazilian helicopter carrier Atlântico

Brazil, seeking a replacement for theirnavy's outgoing flagship,NAeSão Paulo, began negotiations with the United Kingdom in 2017 to purchaseOcean for £84.3 million (312 million Brazilian Reais),[61] following her decommissioning in 2018. An agreement was struck and, after being transferred to Brazil, the formerHMS Ocean was commissioned asAtlântico in June 2018. She has since been the flagship of the Brazilian Navy.

Initially being designated with the initials PHM (Porta Helicópteros Multipropósito, Multipurpose Helicopter Carrier), the ship's designation was changed to NAM (Navio Aeródromo Multipropósito, Multipurpose Aircraft Carrier) on 12 November 2020 due to her ability to hostUAVs andVTOL aircraft.[62]

Affiliations

[edit]
HMSOcean (the smaller carrier at centre right) in a five-country multinational fleet, duringOperation Enduring Freedom in theOman Sea

See also

[edit]

Notes and references

[edit]
  1. ^ab"The Queen visits Plymouth for HMS Ocean's decommissioning ceremony". plymouthherald.co.uk. 27 March 2018.Archived from the original on 27 March 2018. Retrieved27 March 2018.
  2. ^"Brazil announces purchase of HMSOcean for £84 million". ukdefencejournal.org.uk. 2 January 2018.Archived from the original on 10 January 2018. Retrieved13 February 2018.
  3. ^ab"HMS Ocean".Navy Matters. 7 May 2001. Archived fromthe original on 2 November 2014. Retrieved7 October 2008.
  4. ^"HMS Ocean".Royal Navy.Archived from the original on 28 December 2012. Retrieved27 December 2012.
  5. ^abcdefThe Royal Navy Handbook. 2003. p. 92.{{cite book}}:|website= ignored (help)
  6. ^Burgess, Matt."A rare glimpse behind the scenes of UK warship HMS Ocean".Wired UK.Archived from the original on 11 June 2017. Retrieved29 August 2017.
  7. ^ab"HMS Ocean to assume Fleet Flagship role".Royal Navy. 27 May 2015.Archived from the original on 29 June 2015. Retrieved28 July 2015.
  8. ^"Brazil's new helicopter carrier set to arrive". janes.com. 24 August 2018.Archived from the original on 20 October 2018. Retrieved26 September 2018.(subscription required)
  9. ^Galante, Alexandre (26 November 2020)."Porta-Helicópteros Atlântico agora é Navio-Aeródromo Multipropósito".Poder Naval (in Brazilian Portuguese). Retrieved4 September 2025.
  10. ^Fairhill, David (14 February 1992). "£500 million to be spent on new assault vessels".The Times. p. 15.
  11. ^Evans, Michael (3 February 1993). "Spending axe falls on £170m carrier".The Times.
  12. ^White, David; Tighe, Chris (30 March 1993). "MoD revives £170m helicopter carrier plan".Financial Times. p. 15.
  13. ^Duce, Richard (12 May 1993). "Barrow ship order dismays Tyneside".The Times.
  14. ^UKRetail Price Index inflation figures are based on data fromClark, Gregory (2017)."The Annual RPI and Average Earnings for Britain, 1209 to Present (New Series)".MeasuringWorth. Retrieved7 May 2024.
  15. ^Tighe, Chris; Green, Daniel (30 June 1993). "VSEL subsidised Navy ship bid".The Times. p. 7.
  16. ^Green, Daniel (21 July 1993). "Strategy to win a sea battle: How a civilian shipyard helped VSEL cut costs and gain a Royal Navy order".Financial Times.
  17. ^"Cyberpioneer – Weapon – Ruling over the oceans (Dec 07)".Ministry of Defence.Archived from the original on 18 October 2017. Retrieved27 December 2012.
  18. ^RN Publication 15/370
  19. ^"UK's first helicopter attack ship sets sail".BBC News. 30 September 1998.Archived from the original on 20 April 2014. Retrieved26 May 2014.
  20. ^Williams, Rob (4 May 2012)."Near miss as HMS Ocean squeezes through Thames Barrier".The Independent. London.Archived from the original on 12 August 2016. Retrieved29 August 2017.
  21. ^"HMS Ocean – 9 Assault Squadron".Royal Navy. Archived fromthe original on 22 July 2009.
  22. ^"UK Navy saves Nicaraguans".BBC News. 11 November 1998.Archived from the original on 18 April 2014. Retrieved1 June 2013.
  23. ^"UK Navy's biggest ship prepares for action".BBC News. 2 May 1999.Archived from the original on 18 April 2014. Retrieved1 June 2013.
  24. ^A Short History of the Royal Air Force: Chapter 6 – Return to Expeditionary Warfare(PDF). Royal Air Force. p. 307. Archived fromthe original(PDF) on 30 May 2013. Retrieved1 June 2013.
  25. ^"Tell it to the marines... we've invaded the wrong country".The Guardian. 19 February 2002.Archived from the original on 25 September 2016. Retrieved17 December 2016.
  26. ^"Battle and Theatre Honours".Parliamentary Debates (Hansard).House of Lords. 9 June 2005.Archived from the original on 13 October 2017. Retrieved27 May 2019.
  27. ^"Roll of Honorary Freemen of the former Borough of Sunderland"(PDF). Sunderland City Council. Retrieved9 June 2022.
  28. ^"Ocean back at sea after £30m refit".Ministry of Defence. 24 September 2008. Archived fromthe original on 15 October 2008.
  29. ^Palmer, Jason (5 October 2009)."Energy from waste powers US army".BBC News.Archived from the original on 21 May 2014. Retrieved4 October 2009.
  30. ^"TAURUS 09".Royal Navy. 2009. Archived fromthe original on 26 April 2009.
  31. ^"Task Force raises its shield".Navy News.[dead link]
  32. ^"European Countries Agree to Resume Air Traffic". Fox News Channel. 19 April 2010.Archived from the original on 21 April 2010. Retrieved19 April 2010.
  33. ^"HMS Ocean Heads Across The Pond As Part of the Auriga Task Group".Royal Navy. 10 June 2010. Archived fromthe original on 12 June 2010.
  34. ^"HMS Ocean departs Rio de Janeiro after successful diplomatic visit".Royal Navy. 23 September 2010. Archived fromthe original on 27 September 2010.
  35. ^"HMS Ocean Engages in Capacity Building with the Nigerian Navy".Commander, U.S. Naval Forces Europe-Commander, U.S. Naval Forces Africa. Archived fromthe original on 24 February 2015.
  36. ^"HMS Ocean during the Nigerian Fleet Review".Royal Navy. Archived fromthe original on 1 October 2010.
  37. ^"HMS Ocean welcomed home after world wide deployment".Ministry of Defence. 1 November 2010.Archived from the original on 18 April 2014. Retrieved7 July 2013.
  38. ^"Cougar 11".Royal Navy. Archived fromthe original on 4 June 2011.
  39. ^"Apaches get ready to help protect Libyan civilians".Ministry of Defence. 27 May 2011.Archived from the original on 18 October 2012. Retrieved27 December 2012.
  40. ^"NATO Uses Attack Helicopters for First Time in Libya". Fox News Channel. 4 June 2011.Archived from the original on 7 June 2011. Retrieved5 June 2011.
  41. ^"HMS Ocean returns home".Ministry of Defence. 12 December 2011.Archived from the original on 3 December 2013. Retrieved7 July 2013.
  42. ^"Ocean and her gunships dispatched to Libya".Navy News. Archived fromthe original on 1 February 2016.
  43. ^McElroy, Damien; Kirkup, James; Harding, Thomas (23 May 2011)."Libya: British attack helicopters to be deployed".The Daily Telegraph. London.Archived from the original on 28 March 2018. Retrieved2 April 2018.
  44. ^"LIBYA: British Army details Apache's success".Flight International. 8 July 2011.Archived from the original on 18 January 2013. Retrieved27 December 2012.
  45. ^"HMS Ocean's medical team supports Apache crews flying over Libya".Ministry of Defence. 5 August 2011.Archived from the original on 3 December 2013. Retrieved30 November 2013.
  46. ^"Military support to 2012 Olympic Games announced".Ministry of Defence. 15 December 2011.Archived from the original on 18 October 2012. Retrieved27 December 2012.
  47. ^"HMS Ocean visits her affiliated city of Sunderland this weekend".Royal Navy. Archived fromthe original on 25 June 2012. Retrieved27 December 2012.
  48. ^"HMS Ocean in London for Olympics". BBC News. 13 July 2012.Archived from the original on 5 January 2016. Retrieved20 June 2018.
  49. ^"HMS Ocean".Royal Navy. Archived fromthe original on 26 September 2013. Retrieved27 December 2012.
  50. ^"HMS Ocean joins the French in Exercise Gabion". 19 September 2014. Archived fromthe original on 21 September 2014. Retrieved22 September 2014.
  51. ^"Royal Marines launch final assualt [sic] on exercise Albanian Lion".Royal Navy. 17 September 2014.Archived from the original on 14 April 2016. Retrieved17 June 2016.
  52. ^"845 NAS on exercise Joint Warrior 15-1".Royal Navy. 15 May 2015.Archived from the original on 7 October 2016. Retrieved17 June 2016.
  53. ^"HMS Ocean conducts first-time operations of Wildcat helicopter".Naval Technology. 29 May 2015.Archived from the original on 9 August 2016. Retrieved17 June 2016.
  54. ^"HMS Ocean due into Sunderland for Freedom of the City and open to visitors".Royal Navy. 30 April 2015.Archived from the original on 11 August 2016. Retrieved17 June 2016.
  55. ^Daly, Patrick (19 March 2015)."The Queen in Plymouth – live coverage of Her Majesty's visit".Plymouth Herald. Archived fromthe original on 24 September 2015. Retrieved17 June 2016.
  56. ^"HMS Ocean returns home from Cougar deployment".Royal Navy. 11 December 2015.Archived from the original on 15 March 2016. Retrieved17 June 2016.
  57. ^ab"HMS Ocean deploys on joint expeditionary force". Royal Navy. 20 September 2016. Retrieved7 November 2020.
  58. ^"Royal Navy leads US task force 50 for the first time".
  59. ^"Closing sail".The Daily Telegraph. London. 30 August 2017.
  60. ^"Update from Priti Patel on the UK's response to Hurricane Irma".gvo.uk. 8 September 2017.Archived from the original on 8 September 2017. Retrieved8 September 2017.
  61. ^"HMS Ocean decommissioned from the Royal Navy, to be sold to Brazil". 27 March 2018.
  62. ^"Armada's Flagship receives new Multipurpose Aircraft Carrier designation".marinha.mil.br (in Portuguese). 12 November 2020. Retrieved18 May 2022.

External links

[edit]
Wikimedia Commons has media related toIMO 9079456.
Retrieved from "https://en.wikipedia.org/w/index.php?title=HMS_Ocean_(L12)&oldid=1311452799"
Categories:
Hidden categories:

[8]ページ先頭

©2009-2025 Movatter.jp