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==Rolling stock== ===Class 71=== [[File:GMB BFM 71104 1.jpg|thumb|A [[GMB Class 71|Class 71]] Airport Express Train ready for departure from [[Oslo Central Station|Oslo S]]]] [[File:Flytoget innvendig.jpg|thumb|Interior of the [[GMB Class 71|Class 71]] Airport Express Train]] {{Main|GMB Class 71}} The company operates sixteen [[GMB Class 71|Class 71]] three-car [[electric multiple unit]]s delivered in 1997–98, and built domestically by [[Adtranz]] at [[Strømmens Værksted|Strømmen]] based on carbodies built in [[Adtranz]] factory in [[Kalmar]]. They are based on the Swedish [[SJ X2|X2]] operated by [[SJ AB|SJ]] in their [[X 2000]] intercity service, and developed by [[Kalmar Verkstad]] during the 1980s. The Class 71 are nearly identical to the [[NSB Class 73]], save the 71-series lacking one car and [[tilting train|tilting mechanism]], and a different interior. Both have chosen to not use the original [[locomotive]] design, instead installing one powered [[bogie]] in each car. The 71-series is built for a maximum operating speed of {{convert|210|km/h|mph}}, but has achieved higher speeds in test runs.<ref name=elektrolok>{{Cite book|first=Nils Carl |last=Aspenberg |author-link=Nils Carl Aspenberg |title=Elektrolok i Norge |year=2001 |publisher=[[Baneforlaget]] |location=Oslo |language=no |isbn=82-91448-42-6}}</ref> Among the features are pressure-tight cabins to allow comfortable travel through tunnels at high speeds, and step-free access to the cars. Instead, steps are inside the trains; this has been criticized to be in non-conformance with public [[accessibility]] policy.<ref>{{Cite web |url=http://www.shdir.no/srff/fagnytt/langt_igjen_til_universell_utforming__66999 |title=Langt igjen til universell utforming |author=[[Norwegian State Council on Disability]] |language=no |access-date=2007-06-19 |url-status=dead |archive-url=https://archive.today/20070528155612/http://www.shdir.no/srff/fagnytt/langt_igjen_til_universell_utforming__66999 |archive-date=2007-05-28 }}</ref> The multiple units can only operate in fixed sets of three cars, but up to three sets can be [[multiple-unit train control|run in multiple]]. Flytoget regularly uses double sets to create six-car trains.<ref name=elektrolok /> In 2008–09, all units will be refit with an additional middle car by [[Bombardier Transportation]], increasing capacity by 40% to 244 seats.<ref>{{Cite web |url=http://www.flytoget.no/eng/About-Flytoget/Press/Pressemeldinger/Flytoget-inng%C3%A5r-kontrakt-med-Bombardier-Transportation |title=Flytoget inngår kontrakt med Bombardier Transportation om kjøp av nye mellomvogner |author=Flytoget AS |language=no |access-date=2007-06-19 |archive-url=https://web.archive.org/web/20090703015900/http://www.flytoget.no/eng/About-Flytoget/Press/Pressemeldinger/Flytoget-inng%C3%A5r-kontrakt-med-Bombardier-Transportation |archive-date=2009-07-03 |url-status=dead }}</ref> Unlike the Class 71, the sister trains in service with NSB were prone to trouble, having to operate on hundred-year-old infrastructure on cross-mountain services; the Class 71 has more lenient operating conditions thanks to better infrastructure. The only incident to ground all the BM71 trains occurred on the 17 June 2000 at [[Nelaug Station|Nelaug]] when a Class 73 train operated by NSB [[derail]]ed because of stress on the axle. Unlike the NSB trains, the airport express trains were back in service the next day,<ref>{{Cite web |url=http://www.vg.no/nyheter/innenriks/artikkel.php?artid=7373144 |title=Utmatting årsak til avsporing |author=Norsk Telegrambyrå |publisher=Verdens Gang |date=2000-06-18 |access-date=2008-09-13 |language=no |url-status=dead |archive-url=https://web.archive.org/web/20110612012125/http://www.vg.no/nyheter/innenriks/artikkel.php?artid=7373144 |archive-date=2011-06-12 }}</ref> while the 73-series had to wait another month.<ref>{{Cite web |url=http://www.vg.no/nyheter/innenriks/artikkel.php?artid=6574318 |title=Signatur endelig i drift |author=Norsk Telegrambyrå |publisher=Verdens Gang |date=2000-07-13 |access-date=2008-09-13 |language=no |url-status=dead |archive-url=https://web.archive.org/web/20110612012151/http://www.vg.no/nyheter/innenriks/artikkel.php?artid=6574318 |archive-date=2011-06-12 }}</ref> On 24 January 2004 a unit had to be taken out of service due to smoke from a stressed [[bearing (mechanical)|bearing]]—within days the bearings were replaced on all units.<ref>{{Cite web |url=http://www.vg.no/nyheter/innenriks/artikkel.php?artid=264980 |title=Må skifte alle hjullagre i Flytogene |author=Norsk Telegrambyrå |publisher=Verdens Gang |date=2005-01-31 |language=no |access-date=2007-06-30 |url-status=dead |archive-url=https://web.archive.org/web/20110611221249/http://www.vg.no/nyheter/innenriks/artikkel.php?artid=264980 |archive-date=2011-06-11 }}</ref> ===Class 78=== [[File:Flytoget Oaris auf dem Eisenbahnversuchsring Velim (CZ).jpg|thumb|Class 78 train at the [[Velim railway test circuit]]]] Flytoget purchased eight new 4-car [[CAF Oaris]] EMUs from the Spanish manufacturer CAF.<ref>{{Cite web|url=http://www.caf.net/en/productos-servicios/proyectos/proyecto-detalle.php?p=276 |title=OARIS FLYTOGET |author=CAF |publisher=CAF |date=2015-05-01 |access-date=2015-12-30}}</ref> They started operation in June 2021. Even though the EMU's maximum speed is {{convert|245|km/h|mph}}, the infrastructure limits the speed to {{convert|210|km/h|mph}}. The trainsets delivered to Flytoget were withdrawn from service after 19 days of operation due to discovery of cracks in the chassis.<ref>{{cite news | title=Crack causes Flytoget to withdraw brand new CAF fleet from traffic | url=https://www.railjournal.com/news/crack-causes-flytoget-to-withdraw-brand-new-caf-fleet-from-traffic/ | access-date=31 August 2021 }}</ref> In January 2023, the trainsets resumed operation.<ref>{{cite news |title=Los Oaris de Flytoget volverán a prestar servicio en enero |url=https://www.trenvista.net/material-movil/los-oaris-de-flytoget-volveran-a-prestar-servicio-en-enero/ |access-date=14 November 2024 |website=Trenvista (in Spanish) |date=20 December 2022 |archive-url=https://web.archive.org/web/20221220175528/https://www.trenvista.net/material-movil/los-oaris-de-flytoget-volveran-a-prestar-servicio-en-enero/ |archive-date=20 December 2022}}</ref><ref>{{cite web |title=Our story |url=https://flytoget.no/en/about/our-story/ |website=Flytoget |access-date=14 November 2024}}</ref>
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