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At a glance
Brazilian helicopter carrier Atlânticolarger figure on 3 of 3
Measured figures
Length
Single source203.4 m (667 ft)[source]
Length
Single sourceConfiguration
| Specification | Brazilian helicopter carrier Atlântico | HMAS Choules |
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| Complement | — | RFA: 60-70 core, increased for operational deployments RAN - 158 fully crewed[source] |
| Power | 2x Crossley Pielstick PC2 Mk-6 MW 12 cylinder.[source] | 2 × Wärtsilä 8L26 generators, 6,000 hp (4.5 MW) 2 × Wärtsilä 12V26 generators, 9,000 hp (6.7 MW) 2 × propulsion pods 1 × bow thruster[source] |
| Name | HMS Ocean[source] | Largs Bay[source] |
| Operator | Royal Navy[source] | — |
| Ordered |
Counts only measures both sources give with the same scope. A larger figure is not a better system.
579.4 ft (176.6 m)[source]
+ 180 aviation personnel
Single source285 + 180 aviation personnel[source]
Bars compare reported quantities only. A larger figure does not make a system better; configurations and test conditions differ.
11 May 1993[source] |
18 December 2000[source] |
| Builder | Vickers Shipbuilding and Engineering Ltd , Kværner (Govan)[source] | Swan Hunter , Wallsend , Tyne and Wear , England[source] |
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| Laid down | 30 May 1994[source] | 28 January 2002[source] |
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| Launched | 11 October 1995[source] | 18 July 2003[source] |
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| Sponsored by | Queen Elizabeth II of the United Kingdom[source] | — |
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| Commissioned | 30 September 1998[source] | 13 December 2011[source] |
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| Decommissioned | 27 March 2018[source] | — |
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| Refit | Major 2012–2014[source] | — |
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| Home port | HMNB Devonport , Plymouth[source] | Fleet Base East[source] |
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| Identification | IMO number : 9079456 MMSI number : 234643000 Callsign : GCOU[source] | IMO number : 9240756 MMSI number : 232653000 Callsign : GCIA Pennant number : L3006[source] |
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| Motto | Ex undis surgit victoria (From the waves rises victory)[source] | "Face Difficulty With Zeal"[source] |
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| Honours and awards | Al Faw 2003[source] | — |
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| Fate | Sold to Brazil[source] | Decommissioned under SDSR , sold to Australia[source] |
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| Acquired | Purchased on 19 February 2018, from the Royal Navy[source] | 6 April 2011[source] |
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| Status | Active[source] | Active as of 2022[source] |
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| Class & type | Amphibious Assault Ship[source] | Bay-class landing ship dock[source] |
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| Boats & landing craft carried | 1 Seaboat (Pacific 22 Mk2) 4 × LCVP Mk5B[source] | 1 LCU Mark 10 , 1 LCM-8 , or 2 LCVPs ( Royal Marines version or RAN version ) 2 Mexeflote powered rafts[source] |
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| Capacity | 40 vehicles[source] | 1,150 linear metres of vehicles (up to 24 Challenger 2 tanks, 32 M1A1 Abrams tanks, or 150 light trucks) Cargo capacity of 200 tons ammunition or 24 TEU containers[source] |
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| Troops | 830[source] | 356 standard or 700 overload[source] |
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| Sensors & processing systems | Type 997 Artisan radar Type 1008 Navigational Radar 2 × Type 1007 Aircraft Control Radar[source] | RAN service : EID ICCS integrated communications control system CEAFAR-S multi-function radar[source] |
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| Electronic warfare & decoys | UAT Electronic Support Measures DLH decoy Launchers Surface Ship Torpedo Defence (SSTD)[source] | — |
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| Armament | 4 × 30mm DS30M Mk2 guns 4 × Miniguns 8 × General purpose machine guns[source] | RFA service Fit to receive: Phalanx CIWS 30 mm DS30B cannon RAN service : 1 Phalanx CIWS AN/SLQ-25 Nixie[source] |
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| Aircraft carried | Up-to 18 helicopters: EC725 Caracal S-70B Seahawk AS350 Écureuil[source] | Blackhawk and Seahawk helicopters frequently embarked; flight deck can operate helicopters up to Chinook size[source] |
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| Aviation facilities | Large flight deck Hangar deck Helicopter lifts Vehicle deck[source] | No permanent hangar; temporary hangar can be fitted.[source] |
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| Notes | To see troops carried, armament and aircraft carried while in service with the Royal Navy See HMS Ocean[source] | — |
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| Role | amphibious helicopter carrier and current flagship of the Brazilian Navy[source] | — |
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| Source measurement | In December 2017, the Brazilian Navy confirmed the purchase of the ship for £84.6 million, equivalent to R$359.5M and USD $113.2M. Following her decommissioning from Royal Navy service in March 2018, she would undertake a period of maintenance in the United Kingdom and was expected to arrive in Rio de Janeiro by 25 August 2018, with the intention of being commissioned and fully operational by 2020. Brazilian defence officials confirmed the purchase, as well as officials from the UK MoD, as of 17 February 2018.[source]Brazilian helicopter carrier Atlântico · History; only the objects and conditions stated in this passage The Brazilian Navy commissioned the multi-purpose helicopter carrier Atlântico (A140) on 29 June in the United Kingdom. The helicopter carrier package for Brazil includes an Artisan 3D search radar , KH1007 surface surveillance radar system, four 30 mm DS30M Mk 2 remote weapon systems and four Mk 5B landing craft. However, the three original 20 mm Mk 15 Block 1B Phalanx close-in weapon systems, the torpedo defence systems and 7.62 mm M134 machine guns were removed from the ship before the transfer to Brazil. The ship displaces 21,578 tonnes, is 203.43 m long and has a range of 8,000 n miles. The ship underwent maintenance work by Babcock and BAE Systems in February.[source]Brazilian helicopter carrier Atlântico · History; only the objects and conditions stated in this passage | The Bay-class ships have a full load displacement of 16,160 tonnes (15,900 long tons) in RFA service; this increased slightly to 16,190 tonnes (15,930 long tons) after modifications for RAN service.[source]HMAS Choules · Design and construction; only the objects and conditions stated in this passage Largs Bay / Choules is 579.4 feet (176.6 m) long, with a beam of 86.6 feet (26.4 m), and a draught of 19 feet (5.8 m).[source]HMAS Choules · Design and construction; only the objects and conditions stated in this passage Propulsion power is provided by two Wärtsilä 8L26 generators, providing 6,000 horsepower (4.5 MW), and two Wärtsilä 12V26 generators, providing 9,000 horsepower (6.7 MW).[source]HMAS Choules · Design and construction; only the objects and conditions stated in this passage Maximum speed is 18 knots (33 km/h; 21 mph), and the Bay-class ships can achieve a range of 8,000 nautical miles (15,000 km; 9,200 mi) at 15 knots (28 km/h; 17 mph).[source]HMAS Choules · Design and construction; only the objects and conditions stated in this passage Largs Bay was fitted for but not with a Phalanx CIWS and a 30mm DS30B cannon when required for self defence.[source]HMAS Choules · Design and construction; only the objects and conditions stated in this passage The cargo capacity is equivalent of 200 tons of ammunition, or 24 twenty-foot equivalent unit containers.[source]HMAS Choules · Design and construction; only the objects and conditions stated in this passage During normal conditions, a Bay-class ship can carry 356 soldiers, but this can be almost doubled to 700 in overload conditions.[source]HMAS Choules · Design and construction; only the objects and conditions stated in this passage Two 30-ton cranes are fitted between the superstructure and the flight deck.[source]HMAS Choules · Design and construction; only the objects and conditions stated in this passage Four months after entering service, an engine room fire resulted in steering and propulsion issues, requiring Largs Bay to be towed to Plymouth for repairs. In late November 2007, Largs Bay embarked 815 Naval Air Squadron 215 Flight and left home waters for the Caribbean to conduct counter-drug operations. She visited eleven islands including Barbados , Curaçao , Grand Turk , Martinique , Trinidad and also the USA. Three days after leaving Barbados Largs Bay ' s patrolling helicopter spotted a small fishing vessel stopped in the water and detained her after a pursuit; 575 kilograms (1,268 lb) of cocaine were recovered, with an estimated £20 million European street value. She participated in Navy Days while in port at Curaçao, where several hundred people toured her.[source]HMAS Choules · Operational history / United Kingdom; only the objects and conditions stated in this passage In early 2010, Largs Bay was deployed to the Arctic Circle. Following the 2010 Haiti earthquake , the ship was pulled from exercises and sailed on 3 February to deliver a load of relief supplies to Haiti. On 18 February 2010, she arrived at Port-au-Prince and unloaded 430 tonnes (470 tons) of supplies plus 165 tonnes (182 tons) of rations, while engineers from the ship began work on restoring electricity ashore. On 30 March 2010, she returned home. Largs Bay ' s actions were recognised in December 2011 with the awarding of the Firmin Sword of Peace .[source]HMAS Choules · Operational history / United Kingdom; only the objects and conditions stated in this passage For a short time from July 2013, Choules was anchored offshore of the Manus Regional Processing Centre in Papua New Guinea to provide temporary accommodation for Department of Immigration and other personnel, due to a lack of accommodation at the centre. In April 2015, the ship transported 46 Vietnamese asylum seekers back to Vũng Tàu , after their vessel was intercepted at sea on 20 March by Australian border protection units and their claims were rejected after interviews at sea lasting less than 40 minutes.[source]HMAS Choules · Operational history / Australia; only the objects and conditions stated in this passage Choules was deployed to Vanuatu on 30 September 2017 to aid in the rescue of 11,000 people from a volcanic eruption of Monaro Voui.[source]HMAS Choules · Operational history / Australia; only the objects and conditions stated in this passage |
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| Namesake | — | Largs Bay[source] |
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| In service | — | 28 November 2006[source] |
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| Out of service | — | April 2011[source] |
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