{{Short description|Container ship}} {{For|a previous ship named MV ''Emma Mærsk''|MV PFC James Anderson Jr.}} {{Use dmy dates|date=March 2020}} {{Infobox ship | display_title = ital |section1={{Infobox ship/image | image = 2023 Emma Maersk - IMO 9321483 - by 2eight - 9SC4259.jpg | image_caption = Container ship ''Emma Mærsk'', 1 October 2023 }}
|section2={{Infobox ship/career | hide_header = Yes | name = ''Emma Mærsk'' | owner = Moller-Maersk | operator = A. P. Moller-Maersk Group | registry = Taarbæk, {{DEN}} | route = | ordered = | builder = Odense Steel Shipyard Ltd., Denmark | original_cost = | yard_number = | way_number = | laid_down = 20 January 2006<ref>{{Cite web |url=https://www.eagle.org/safenet/record/record_vesseldetailsprinparticular?ImoNum=9321483 |title=American Bureau of Shipping: Official Registry Number D4150 |access-date=16 December 2012 |archive-date=26 May 2013 |archive-url=https://web.archive.org/web/20130526181007/https://www.eagle.org/safenet/record/record_vesseldetailsprinparticular?ImoNum=9321483 |url-status=live }}</ref> | launched = 18 May 2006 | completed = | christened = | acquired = 31 August 2006 | maiden_voyage = | in_service = 31 August 2006 | out_of_service = | identification = *ABS class no: 06151181 *Call sign: OYGR2 *{{IMO Number|9321483}} *{{MMSI|220417000}} | fate = | status = In service | notes = }}
|section3={{Infobox ship/characteristics | hide_header = | header_caption = | class = {{sclass2|E|container ship}} | tonnage = *{{GT|170,794}} *{{NetT|55,396}} *{{DWT|156,907}} | displacement = | length = {{convert|397|m|ftin|abbr=on}} | beam = {{convert|56|m|ftin|abbr=on}} | height = | draught = {{convert|16.02|m|ftin|abbr=on}} | draft = | depth = {{convert|30|m|ftin|abbr=on}} (deck edge to keel) | decks = | deck_clearance = | ramps = | ice_class = | sail_plan = | power = | propulsion = {{cvt|80.08|MW|hp|lk=on}} Wärtsilä 14RT-Flex96c plus {{cvt|30|MW|hp}} from five Caterpillar 9M32 | speed = {{convert|25.5|kn}} | capacity = *{{TEU|14,770+}} *{{TEU|1000}} (reefers) | crew = 13, with room for 30 | notes = <ref name=abs>{{cite web | title=ABS Record: ''Emma Maersk'' | url=http://www.eagle.org/safenet/record/record_vesseldetailsprinparticular?Classno=06151181 | publisher=American Bureau of Shipping | date=23 July 2009 | access-date=4 June 2010 | archive-date=30 January 2016 | archive-url=https://web.archive.org/web/20160130001310/http://www.eagle.org/safenet/record/record_vesseldetailsprinparticular?Classno=06151181 | url-status=live }}</ref> }} }}
'''''Emma Mærsk''''' is the first container ship in the {{sclass2|E|container ship|4}} of eight owned by A.P. Møller – Mærsk A/S. When launched in 2006, she was the largest container ship ever built, and in 2010, she and her seven sister ships were among the longest container ships. Officially, she is able to carry around {{TEU|11,000|first=yes}} or {{TEU|14,770}}, depending on definition. In May 2010, her sister ship {{ship||Ebba Mærsk}} set a record of 15,011 TEU in Tanger-Med, Tangier.<ref name="IngEbba">{{cite web|author=Julie Holt|title=Ebba Mærsk beats world record|url=http://ing.dk/artikel/109254-ebba-maersk-slaar-verdensrekord-i-containerlast|work=Ingeniøren|date=28 May 2010|access-date=11 June 2010|archive-date=31 May 2010|archive-url=https://web.archive.org/web/20100531061343/http://ing.dk/artikel/109254-ebba-maersk-slaar-verdensrekord-i-containerlast|url-status=live}}</ref>
==History== ''Emma Mærsk'' was built at the Odense Steel Shipyard in Denmark. In June 2006, during construction, welding work caused a fire within the superstructure.<ref name="emmafire">Miranda Max. [http://shippinginsouthafrica.wordpress.com/2010/09/01/the-secret-story-of-building-the-world%e2%80%99s-largest-container-ship "The Secret Story Of Building The World’s Largest Container Ship"] {{Webarchive|url=https://web.archive.org/web/20101220072037/http://shippinginsouthafrica.wordpress.com/2010/09/01/the-secret-story-of-building-the-world%E2%80%99s-largest-container-ship/ |date=20 December 2010 }}, shippinginsouthafrica.wordpress.com; accessed 5 March 2015.</ref> It spread rapidly through the accommodation section and bridge, which delayed her completion by six to seven weeks.
She was named in a ceremony on 12 August 2006, after Mærsk Mc-Kinney Møller's late wife, Emma. On 16 August 2006, five tugboats dragged ''Emma Mærsk'' from her Danish shipyard and towed her backward to the sea.<ref>{{Cite news|url=https://www.wsj.com/articles/the-megaships-that-broke-global-trade-11603384311?page=1|title = The Megaships That Broke Global Trade|newspaper = Wall Street Journal|date = 22 October 2020|last1 = Levinson|first1 = Marc}}</ref> She set sail on her maiden voyage on 8 September 2006 at 02:00 hours from Aarhus, calling at Gothenburg, Bremerhaven, Rotterdam, Algeciras, the Suez Canal, and arrived in Singapore on 1 October 2006 at 20:05 hours. She sailed the next day for Yantian in Shenzhen, then Kobe, Nagoya, arriving at Yokohama on 10 October 2006, and returning via Shenzhen, Hong Kong, Tanjung Pelepas, the Suez Canal, Felixstowe, Rotterdam, Bremerhaven, Gothenburg to Aarhus, arriving on 11 November 2006 at 16:00 hours.<ref name="sailtime">{{Cite web|title=Sailing Schedule|publisher=Maersk Line|url= http://sailingschedules2.maerskline.com/MaerskSailingSchedulesCustomerWeb/CustomerWebServlet?ssaction=com.saf.ss.cust.action.search.SearchSchedulesByVesselAction&liveworking=LIVE&pageAction=search&isWildcardSearch=true&searchVessel=EMMA+MAERSK&searchVoyageNumber=&searchFromDate=01-Mar-2005&searchToDate=14-Jan-2010 |access-date=5 March 2015|url-status=dead|archive-url= https://web.archive.org/web/20070629030509/http://sailingschedules2.maerskline.com/MaerskSailingSchedulesCustomerWeb/CustomerWebServlet?ssaction=com.saf.ss.cust.action.search.SearchSchedulesByVesselAction |archive-date=29 June 2007|df=dmy-all}}</ref>
In 2008, the ship was featured on an episode of the television documentary series ''Mighty Ships'', during a voyage between Malaysia and Spain.<ref>{{cite web|title=Mighty Ships |url=http://www.discoveryhd.ca/shows/showdetails.aspx?sid=9955 |website=discoveryhd.ca |publisher=CTV Global Media |access-date=4 August 2014 |url-status=dead |archive-url= https://web.archive.org/web/20080915092424/http://www.discoveryhd.ca/shows/showdetails.aspx?sid=9955 |archive-date=15 September 2008 }}</ref>
In 2011, the National Bank of Denmark issued a 20 DKK commemorative coin for her.<ref>{{cite web|title=National Bank of Denmark issues commemorative coin for the Emma Mærsk |url=http://www.nationalbanken.dk/DNUK/NotesAndCoins.nsf/side/Emma_Maersk!OpenDocument |publisher=National Bank of Denmark |access-date=5 March 2015 |date=15 September 2011 |url-status=dead |archive-url= https://web.archive.org/web/20131016065643/http://www.nationalbanken.dk/DNUK/NotesAndCoins.nsf/side/Emma_Maersk!OpenDocument |archive-date=16 October 2013 |df=dmy }}</ref>
Going eastwards on 1 February 2013, she suffered a damaged stern thruster and took on so much water in the Suez Canal that she became unmaneuverable. Tugs, anchors and the wind<ref>"[http://www.maerskpostdigital.com/h/i/534717-maersk-post-digital-edition-june-2013 Here it comes] {{Webarchive|url=https://web.archive.org/web/20131122010617/http://www.maerskpostdigital.com/h/i/534717-maersk-post-digital-edition-june-2013 |date=22 November 2013 }}" page 29-31, ''Maersk Post'' (June 2013); accessed 22 September 2013.</ref> took her to Port Said to offload 13,500 containers, drain her and be investigated by divers. She had not been in danger of sinking.<ref>{{Cite web |url=http://www.dmaib.com/Ulykkesrapporter/Flooding%20of%20engine%20room%20-%20EMMA%20M%C3%86RSK%20on%201%20February%202013.pdf |title=Accident report |access-date=20 June 2018 |archive-url=https://web.archive.org/web/20160112130225/http://www.dmaib.com/Ulykkesrapporter/Flooding%20of%20engine%20room%20-%20EMMA%20M%C3%86RSK%20on%201%20February%202013.pdf |archive-date=12 January 2016 |url-status=dead }}</ref><ref>{{cite web|title=Emma Maersk ship faces leakage in Suez Canal|url=http://www.egyptindependent.com/news/emma-maersk-ship-faces-leakage-suez-canal|work=Egypt Independent/Al-Masry Al-Youm|access-date=2 February 2013|date=2 February 2013|archive-date=5 February 2013|archive-url=https://web.archive.org/web/20130205051909/http://www.egyptindependent.com/news/emma-maersk-ship-faces-leakage-suez-canal|url-status=live}}</ref><ref>{{cite web|last=Hjorth|first=Mikael|title="Emma Mærsk" tog vand ind i Suez-kanalen|url=http://www.business.dk/transport/emma-maersk-tog-vand-ind-i-suez-kanalen|access-date=2 February 2013|date=2 February 2013|archive-date=27 September 2013|archive-url=https://web.archive.org/web/20130927204943/http://www.business.dk/transport/emma-maersk-tog-vand-ind-i-suez-kanalen|url-status=live}} [https://translate.google.com/translate?sl=da&tl=en&js=n&prev=_t&hl=en&ie=UTF-8&eotf=1&u=http%3A%2F%2Fwww.business.dk%2Ftransport%2Femma-maersk-tog-vand-ind-i-suez-kanalen English translation] {{Webarchive|url=https://web.archive.org/web/20170511022602/https://translate.google.com/translate?sl=da&tl=en&js=n&prev=_t&hl=en&ie=UTF-8&eotf=1&u=http%3A%2F%2Fwww.business.dk%2Ftransport%2Femma-maersk-tog-vand-ind-i-suez-kanalen |date=11 May 2017 }}</ref><ref>{{cite web|last=Hjorth|first=Mikael|title=Såret Mærsk-gigant undersøges af dykkere|url=http://www.business.dk/transport/saaret-maersk-gigant-undersoeges-af-dykkere|access-date=2 February 2013|date=2 February 2013|archive-date=11 February 2013|archive-url=https://web.archive.org/web/20130211161650/http://www.business.dk/transport/saaret-maersk-gigant-undersoeges-af-dykkere|url-status=live}} [https://translate.google.com/translate?sl=da&tl=en&js=n&prev=_t&hl=en&ie=UTF-8&eotf=1&u=http%3A%2F%2Fwww.business.dk%2Ftransport%2Fsaaret-maersk-gigant-undersoeges-af-dykkere English translation] {{Webarchive|url=https://web.archive.org/web/20170511024135/https://translate.google.com/translate?sl=da&tl=en&js=n&prev=_t&hl=en&ie=UTF-8&eotf=1&u=http%3A%2F%2Fwww.business.dk%2Ftransport%2Fsaaret-maersk-gigant-undersoeges-af-dykkere |date=11 May 2017 }}</ref><ref>{{cite web|title=Kæmpe Mærsk-skib tager vand ind: Nu skal 13.500 containerne læsses af|url=http://politiken.dk/indland/ECE1886603/kaempe-maersk-skib-tager-vand-ind-nu-skal-13500-containerne-laesses-af/|publisher=Politiken|access-date=2 February 2013|date=2 February 2013|archive-date=5 February 2013|archive-url=https://web.archive.org/web/20130205025705/http://politiken.dk/indland/ECE1886603/kaempe-maersk-skib-tager-vand-ind-nu-skal-13500-containerne-laesses-af/|url-status=live}} [https://translate.google.com/translate?sl=da&tl=en&js=n&prev=_t&hl=en&ie=UTF-8&eotf=1&u=http%3A%2F%2Fpolitiken.dk%2Findland%2FECE1886603%2Fkaempe-maersk-skib-tager-vand-ind-nu-skal-13500-containerne-laesses-af%2F English translation] {{Webarchive|url=https://web.archive.org/web/20170511023534/https://translate.google.com/translate?sl=da&tl=en&js=n&prev=_t&hl=en&ie=UTF-8&eotf=1&u=http%3A%2F%2Fpolitiken.dk%2Findland%2FECE1886603%2Fkaempe-maersk-skib-tager-vand-ind-nu-skal-13500-containerne-laesses-af%2F |date=11 May 2017 }}</ref>
On 15 February 2013, the Maersk Line confirmed that she was about to leave Port Said under tow to a yard for further assessment and repair.<ref>{{cite web|title=Emma Maersk: after immediate repairs, the onward journey begins|url=http://www.maerskline.com/link/?page=news&path=/news/news20130215|publisher=Maersk Line|access-date=16 February 2013|date=15 February 2013|archive-date=24 February 2013|archive-url=https://web.archive.org/web/20130224022515/http://www.maerskline.com/link/?page=news&path=%2Fnews%2Fnews20130215|url-status=live}}</ref> On 25 February she reached the yard of Palermo, Sicily, where she was scheduled to stay for four months.<ref>{{cite web |url= http://palermo.repubblica.it/cronaca/2013/02/25/news/arrivata_a_palermo_la_emma_maersk_la_portacontainer_pi_grande_del_mondo-53367561/ |title= Arrivata a Palermo la Emma Maersk la portacontainer più grande del mondo |date= 25 February 2013 |access-date= 12 March 2013 |archive-date= 2 March 2013 |archive-url= https://web.archive.org/web/20130302162103/http://palermo.repubblica.it/cronaca/2013/02/25/news/arrivata_a_palermo_la_emma_maersk_la_portacontainer_pi_grande_del_mondo-53367561/ |url-status= live }}</ref> The flooded engine was disassembled, repaired and assembled,<ref>{{cite web |last1=KRISTIANSEN |first1=TOMAS |title=This is how the Emma Maersk bill will be settled |url=https://shippingwatch.com/carriers/article5818475.ece |website=ShippingWatch |access-date=1 April 2019 |language=en |date=13 August 2013 |archive-date=1 April 2019 |archive-url=https://web.archive.org/web/20190401192258/https://shippingwatch.com/carriers/article5818475.ece |url-status=live }}</ref> and in August 2013, she was in service again<ref>OLE ANDERSEN. "[http://shippingwatch.dk/Rederier/article5772231.ece Emma Maersk sails again] {{Webarchive|url=https://web.archive.org/web/20130927183537/http://shippingwatch.dk/Rederier/article5772231.ece |date=27 September 2013 }}" ''ShippingWatch'', 1 August 2013. Accessed: 22 September 2013.</ref> after a DKK 250 million (roughly US$44.5 million) repair.<ref>TOMAS KRISTIANSEN. "[http://shippingwatch.dk/Rederier/article5817215.ece Here comes the bill for Emma Maersk] {{Webarchive|url=https://web.archive.org/web/20130927183716/http://shippingwatch.dk/Rederier/article5817215.ece |date=27 September 2013 }}" ''ShippingWatch'', 13 August 2013; accessed 22 September 2013.</ref>thumb|220x124px | ''Emma Mærsk'' at a shipyard in Brest, France
==Capacity== Originally Maersk reported a capacity of 11,000 TEU (twenty-foot equivalent units) as the maximum capacity of fully loaded 14 ton containers, according to Maersk company's then method of calculating capacity,<ref>{{cite press release|url=http://media.maersk.com/en/PressReleases/2006/namegiving+L203.htm |title=Namegiving of newbuilding L 203 |date=8 December 2006 |publisher=Odense Steel Shipyard |url-status=dead |archive-url=https://web.archive.org/web/20070713100229/http://media.maersk.com/en/pressreleases/2006/namegiving+l203.htm |archive-date=13 July 2007 |df=dmy }}</ref> which, at her introduction into service, was about 1,400 more containers than any other ship.<ref name="pop-sci-dec-2006-p24">{{Citation|surname=Koepf|given=Pam|title=Overachievers We Love|journal=Popular Science|volume=269|issue=6|year=2006|page=24}}</ref> However, Maersk also acknowledges the standard method of defining capacity, stating 14,770 TEU.<ref name="ml1">[http://www.maerskline.com/link/?page=brochure&path=/our_services/vessels Vessels] {{Webarchive|url=https://web.archive.org/web/20120312094217/http://www.maerskline.com/link/?page=brochure&path=%2Four_services%2Fvessels |date=12 March 2012 }} ''Maersk Line'', 1 June 2010; accessed 16 June 2010.</ref>
By normal calculations, she has a capacity significantly greater than reported—between 13,500 and 15,200 TEU.<ref>{{cite web|url=http://www.portofrotterdam.com/en/news/newsservice/12092006_10.jsp|title=Big, bigger, biggest|access-date=5 March 2015|author=Alexander Bakker|publisher=Port of Rotterdam|archive-date=5 March 2016|archive-url=https://web.archive.org/web/20160305080303/https://www.portofrotterdam.com/en/news/newsservice/12092006_10.jsp|url-status=live}}</ref><ref>[http://www.axsliner.com/WWW/research_files/EMMA_MAERSK_capa_estimate.pdf Emma Maersk (PDF)] {{webarchive |url=https://web.archive.org/web/20090327001747/http://www.axsliner.com/WWW/research_files/EMMA_MAERSK_capa_estimate.pdf |date=27 March 2009 }}</ref> The difference between the official and estimated numbers is because Maersk calculates the capacity of a container ship by weight (in this case, 14 tons/container), i.e. 11,000+ containers,<ref>{{Cite news|url=https://news.bbc.co.uk/2/hi/uk_news/england/suffolk/6117080.stm|title=Giant Christmas goods ship docks|work=BBC News|access-date=5 March 2015|archive-date=2 April 2015|archive-url=https://web.archive.org/web/20150402091617/http://news.bbc.co.uk/2/hi/uk_news/england/suffolk/6117080.stm|url-status=live}}</ref> of which 1,000 can be refrigerated containers.<ref name="dnvemma">Røe, Magne A. [http://www.dnv.com/industry/maritime/publicationsanddownloads/publications/dnvcontainershipupdate/2008/2-2008/thelogisticsof.asp Logistics of building large ships] {{webarchive|url=https://archive.today/20130121151622/http://www.dnv.com/industry/maritime/publicationsanddownloads/publications/dnvcontainershipupdate/2008/2-2008/thelogisticsof.asp |date=21 January 2013 }} ''Det Norske Veritas'', 23 September 2008; retrieved 31 August 2010.</ref>
Most companies calculate capacity according to the maximum number of containers that can be carried irrespective of weight. This is called a twenty-foot equivalent unit, or TEU.<ref>{{Cite web |date=2026-01-21 |title=What Is A TEU? Calculating Cargo Ship Capacity (With Examples) {{!}} CHS Container Group USA |url=https://chs-containergroup.com/us/what-is-a-teu-shipping/ |access-date=2026-02-22 |language=en-US}}</ref> As of 2012, the E class is still the largest by full-weight 14-tonne capacity. {{ship||Marco Polo|containership|2}} can carry 10,000 14 t containers, 16,020 if not fully loaded.<ref name="csinfo">{{cite web|url=http://www.containership-info.com/vessel_9454436.html|title=CMA CGM MARCO POLO|access-date=6 November 2012|archive-url=https://web.archive.org/web/20121227073425/http://www.containership-info.com/vessel_9454436.html|archive-date=27 December 2012|url-status=usurped}}</ref><ref name="shipw">{{cite web|url=http://shippingwatch.dk/English_Version/article4898243.ece|title=The race among the world's biggest ships begins|access-date=6 November 2012|archive-date=8 June 2020|archive-url=https://web.archive.org/web/20200608050622/https://shippingwatch.com/articles/article4898243.ece|url-status=live}}</ref>
On 21 February 2011, Maersk ordered a family of ten even larger ships from Daewoo, the {{sclass2|Triple E|container ship|4}}, with a capacity of 18,000 containers. A further ten ships were ordered in June 2011. The first was delivered in 2013.<ref name=bwEEE>[http://www.businessweek.com/news/2011-02-21/maersk-orders-up-to-30-of-biggest-container-ships-on-trade.html Maersk orders up to 30 of biggest container ships on trade] {{Webarchive|url=https://web.archive.org/web/20110628195918/http://www.businessweek.com/news/2011-02-21/maersk-orders-up-to-30-of-biggest-container-ships-on-trade.html |date=28 June 2011 }}, businessweek.com, 21 February 2011; accessed 21 February 2011.</ref><ref>[http://www.worldslargestship.com "E-class successor"] {{Webarchive|url=https://web.archive.org/web/20110718114538/http://www.worldslargestship.com/ |date=18 July 2011 }}, worldslargestship.com; accessed 5 March 2015.</ref>
==Engine and hull== She is powered by a Wärtsilä-Sulzer 14RTFLEX96-C straight-14 engine, the world's largest single diesel unit, weighing 2,300 tonnes and capable of {{convert|109000|hp|MW|abbr=on|order=flip}} when burning {{convert|3600|usgal|L|order=flip}} of heavy fuel oil per hour.<ref>{{Cite web |url=http://www.wartsila.com/en/engines/low-speed-engines/RT-flex96C |title=Wärtsilä RT-flex96C technical information |access-date=23 November 2011 |archive-date=18 November 2011 |archive-url=https://web.archive.org/web/20111118024427/http://www.wartsila.com/en/engines/low-speed-engines/RT-flex96C |url-status=live }}</ref><ref>[http://www.emma-maersk.com/engine/Wartsila_Sulzer_RTA96-C.htm Wartsila Sulzer RTA96-C / Engine page] {{Webarchive|url=https://web.archive.org/web/20200410172614/http://www.emma-maersk.com/engine/Wartsila_Sulzer_RTA96-C.htm |date=10 April 2020 }}, at official website for ship.</ref><ref>[https://www.amusingplanet.com/2013/03/the-largest-and-most-powerful-diesel.html The Largest And Most Powerful Diesel Engine in The World] {{Webarchive|url=https://web.archive.org/web/20200215221754/https://www.amusingplanet.com/2013/03/the-largest-and-most-powerful-diesel.html |date=15 February 2020 }}, amusingplanet.com.</ref>
At economical speed, fuel consumption is 0.260 bs/hp·hour (6,284 L/hour).<ref name="stemma">[http://www.ship-technology.com/projects/emmamaerskcontainers/ Emma Mærsk] {{Webarchive|url=https://web.archive.org/web/20100930090444/http://www.ship-technology.com/projects/emmamaerskcontainers/ |date=30 September 2010 }} ''Ship Technology''. Retrieved: 31 August 2010.</ref> She has features to lower environmental damage, including exhaust heat recovery and cogeneration.<ref name="wsHeat1">[http://www.wartsila.com/ss/Satellite?blobcol=urldata&blobheadername1=Content-Type&blobheadername2=Content-Disposition&blobheadername3=site&blobheadervalue1=application%2Fpdf&blobheadervalue2=attachment%3B+filename%3DWartsila-O-E-RT-WHR.pdf&blobheadervalue3=Wartsila&blobkey=id&blobtable=MungoBlobs&blobwhere=1278589821554&ssbinary=true Waste Heat Recovery (WHR): Fuel savings with less emissions] {{Webarchive|url=https://web.archive.org/web/20120416013438/http://www.wartsila.com/ss/Satellite?blobcol=urldata&blobheadername1=Content-Type&blobheadername2=Content-Disposition&blobheadername3=site&blobheadervalue1=application%2Fpdf&blobheadervalue2=attachment%3B+filename%3DWartsila-O-E-RT-WHR.pdf&blobheadervalue3=Wartsila&blobkey=id&blobtable=MungoBlobs&blobwhere=1278589821554&ssbinary=true |date=16 April 2012 }} ''Wärtsilä Corporation'', 2006. Accessed: 4 December 2010.</ref> Some of the exhaust gases are returned to the engine to improve economy and lower emissions,<ref name=rhEmma>Holsting, Robert. [http://www.robse.dk/pages/Emma/EmmaFami.asp Emma Mærsk, information & data] {{Webarchive|url=https://web.archive.org/web/20180301002309/http://www.robse.dk/pages/emma/emmafami.asp |date=1 March 2018 }} ''Robse''. Accessed: 26 February 2011.</ref> and some are passed through a steam generator which then powers a Peter Brotherhood steam turbine and electrical generators. This creates an electrical output of 8.5 MW,<ref name="abemma">[http://www.allbusiness.com/manufacturing/machinery-manufacturing-general/4004678-1.html Distinctive ships 2006] ''AllBusiness'', 1 December 2006. Retrieved: 31 August 2010. {{webarchive |url=https://web.archive.org/web/20071115234739/http://www.allbusiness.com/manufacturing/machinery-manufacturing-general/4004678-1.html |date=15 November 2007 }}</ref> equivalent to about 12% of the main engine power output. Some of this steam is used directly as shipboard heat.<ref>{{cite press release|title=The world's most powerful Engine enters service|publisher=Wärtsilä Corporation|url=http://www.wartsila.com/en/press-releases/worlds-most-powerful-engine-enters-service|access-date=5 March 2015|archive-date=28 April 2015|archive-url=https://web.archive.org/web/20150428212342/http://www.wartsila.com/en/press-releases/worlds-most-powerful-engine-enters-service|url-status=live}}</ref> Five diesel generators together produce 20.8 MW,<ref name="abemma"/> giving a total electric output of 29 MW.<ref name="dnvemma"/> Two 9 MW electric motors augment the power on the 150 meter main propeller shaft,<ref name="abemma"/> the longest in the world.<ref name=shaft>{{cite web |last1=Bebbington |first1=Tom |title=Emma Maersk - One decade on.... |url=https://www.container-logic.com/single-post/2016/11/16/Emma-Maersk---One-decade-on |website=Container Logic {{!}} Liner Shipping Consultants |access-date=1 April 2019 |language=en |date=16 November 2016 |archive-date=1 April 2019 |archive-url=https://web.archive.org/web/20190401173528/https://www.container-logic.com/single-post/2016/11/16/Emma-Maersk---One-decade-on |url-status=live }}</ref>
Two bow and two stern thrusters provide port manoeuvrability, and two pairs of stabilizer fins reduce rolling.<ref name="abemma"/> A special silicone-based paint, instead of biocides used by much of the industry, keeps barnacles off the hull.<ref name="pop-sci-dec-2006-p24"/> This increases her efficiency by reducing drag while also protecting the ocean from biocides that may leak. The paint is credited with lowering the water drag enough to save 1,200 tonnes of fuel per year.<ref>[http://www.maerskline.com/link/?page=brochure&path=/news_room/photo_archive/vessels Photo archive] {{webarchive|url=https://web.archive.org/web/20130426185242/http://www.maerskline.com/link/?page=brochure&path=%2Fnews_room%2Fphoto_archive%2Fvessels |date=26 April 2013 }} March 2015.</ref> The ship has a bulbous bow, a standard feature for cargo ships as it further reduces drag.<ref>{{Cite web |title=Bray Yacht Design & Research Ltd - Bulbous Bows |url=https://www.brayyachtdesign.bc.ca/article_bbows.html |access-date=2026-02-22 |website=www.brayyachtdesign.bc.ca}}</ref>
The turning diameter at {{convert|24|kn|km/h|abbr=in|order=flip}} is {{convert|0.81|nmi|km|abbr=on|order=flip}}. The engine is near midship to make best use of the rigidity of the hull and to maximize capacity.<ref name=shaft/> When the ship rolls 20 degrees, the bridge sways 35 metres.<ref name="solmer">Solmer, Henrik. [http://www.dr.dk/DR2/VidenOm/Programmer/Viden%20Om%20med%20Ann%20Marker/Spoergsmaal_og_svar/20070220112726.htm?PopUp=true Q&A with Captain of Emma Mærsk] {{Webarchive|url=https://web.archive.org/web/20121020230037/http://www.dr.dk/DR2/VidenOm/Programmer/Viden%20Om%20med%20Ann%20Marker/Spoergsmaal_og_svar/20070220112726.htm?PopUp=true |date=20 October 2012 }}, dr.dk, 20 February 2007; retrieved 24 July 2010.</ref> The ship's anchors weigh 29 tons each and each chain-link weighs 200 kg.<ref>{{Cite web|url=https://www.container-transportation.com/emma-maersk.html|title=Emma Maersk - the largest container ship in the world}}</ref>
==Sailing schedules== Her regular round trip is between northern Europe and the far east via the English Channel, the Strait of Gibraltar and the Suez Canal, calling at Ningbo, Xiamen, Hong Kong (westbound), Yantian (westbound), Algeciras (westbound), Rotterdam, Bremerhaven, Algeciras (eastbound), Yantian (eastbound), Hong Kong (eastbound), and Ningbo.<ref name="sailtime"/><ref name="cicemma">[http://www.cargo-in-china.com/shsc/shscde/876233__S00311_S00614_S00001___S00614.html Emma Maersk trip 1006 schedule] {{webarchive|url=https://web.archive.org/web/20110708120543/http://www.cargo-in-china.com/shsc/shscde/876233__S00311_S00614_S00001___S00614.html |date=8 July 2011 }} ''Cargo in China'', retrieved 31 August 2010.</ref><ref name="maerskss">[http://www.maerskline.com/localfile/?path=/asia/china/schedules/sailing%20schedules/Sailing%20schedule&lang=zh_CN Sailing schedules] {{Webarchive|url=https://web.archive.org/web/20110929203508/http://www.maerskline.com/localfile/?path=%2Fasia%2Fchina%2Fschedules%2Fsailing%20schedules%2FSailing%20schedule&lang=zh_CN |date=29 September 2011 }} page 5 ''Maersk Line''. Retrieved: 31 August 2010.</ref>
{{as of|April 2011}}, the schedule included Gdańsk, Aarhus, and Gothenburg.<ref>[http://www.emma-maersk.com/schedules/ Emma Mærsk schedules] {{Webarchive|url=https://web.archive.org/web/20111207063401/http://www.emma-maersk.com/schedules |date=7 December 2011 }} ''Mærsk'', 5 December 2011; accessed 6 December 2011.</ref>
==References== {{Reflist|30em}}
==External links== {{Commons category|IMO 9321483}} * [http://www.emma-maersk.com/engine/Wartsila_Sulzer_RTA96-C.htm Description and technical details for ship engine, with photos], at official website for Emma Maersk ship. * [https://www.worldmaritimeaffairs.com/worlds-largest-diesel-engine-wartsila-sulzer/ World’s Largest Diesel Engine- Emma Maersk’s Wärtsilä-Sulzer RTA96-C]{{Dead link|date=March 2023 |bot=InternetArchiveBot |fix-attempted=yes }}, 26 February 2019. * [https://gizmodo.com/the-worlds-most-gargantuan-diesel-engine-5822447 The World's Most Gargantuan Diesel Engine], by Andrew Tarantola, 20 July 2011. * [https://www.zmescience.com/science/biggest-most-poweful-engine-world/ This is what 109,000 horsepower looks like – meet the biggest and most powerful engine in the world].This jaw dropper is the Wärtsilä RT-flex96C, the world's largest and most powerful diesel engine in the world today. by Tibi Puiu. 16 May 2019. zmescience.com * [https://wolfstreet.com/2018/05/28/the-engines-of-the-largest-container-ships-in-the-world-and-challenges-their-manufacturers-face/ The Engines of the Largest Container Ships in the World, and Challenges their Manufacturers Face], 28 May 2018.
{{Maersk E-class}}
{{DEFAULTSORT:Emma Maersk}} Category:Merchant ships of Denmark Category:Container ships Category:Ships of the Maersk Line Category:Ships built in Odense Category:2006 ships Category:Maritime incidents in 2006 Category:Ship fires