View source for British Rail Class 66

{{Short description|Class of diesel electric locomotives}}
{{Use dmy dates|date=April 2025}}
{{Infobox locomotive
| name = British Rail Class 66
| image = File:66534 on container train.jpg
| alt = 
| caption = A Class 66 at Eastleigh
| powertype = Diesel-electric
| designer = 
| builder = {{ubl|GM Electro-Motive Division|(later [[Electro-Motive Diesel]]),|at [[London, Ontario]], Canada, {{avoid wrap|and [[Muncie, Indiana]], USA}}}}
| ordernumber = 
| serialnumber = 
| buildmodel = [[EMD Class 66|JT42CWR]]{{efn|Locomotives produced from 2006 onwards, including those of [[EMD Class 66|Series 66]] imported from continental Europe, are model JT42CWRM.}}
| builddate = {{ubl|1998–2008|2014–2015}}
| totalproduction = 480 from UK orders, {{avoid wrap|excluding [[EMD Class 66|Series 66]] imports}}
| rebuilder = 
| rebuilddate = 
| numberrebuilt = 
| uicclass = Co′Co′
| Britishclass = [[Co-Co locomotives|Co-Co]]
| gauge = {{track gauge|sg|allk=on|al=on}}
| bogies = EMD HTCR-E<ref name="pi42m">{{cite book |title=Product Information: EMD Class 66 Freight Locomotive (JT42CWRM) |date=July 2008 |publisher=EMD Europe GmbH |location=Heusenstamm |url=http://www.emdiesels.com/emdweb/international/pdf/A4C66_ENGweb.pdf |access-date=7 February 2023 |archive-url=https://web.archive.org/web/20090319044923/http://www.emdiesels.com/emdweb/international/pdf/A4C66_ENGweb.pdf |archive-date=19 March 2009}}</ref>
| wheeldiameter = 
| minimumcurve = 
| wheelbase = 
| bogie = 
| pivotcentres = 
| wheelspacing =
| length = {{cvt|21.39|m|ftin}}<ref name="RGzSav">{{cite news |url=http://www.railwaygazette.com/news/single-view/view/ews-workhorses-will-deliver-savings.html |title=EWS workhorses will deliver savings |author=JAH |work=Railway Gazette International |publisher=DVV Media International |date=1 April 1998 |access-date=6 February 2014 |archive-url=https://web.archive.org/web/20200302145922/https://www.railwaygazette.com/news/ews-workhorses-will-deliver-savings/27540.article |archive-date=2 March 2020 |url-status=dead}}</ref>
| over couplers = 
| over bufferbeams = 
| body = 
| width = {{cvt|2.63|m|ftin}}<ref name="BRB100">{{cite book |url=http://www.barrowmoremrg.co.uk/BRBDocuments/Locos/Book_No_100_EK_N2_web.pdf |title=Vehicle Diagram Book No. 100 for Main Line Diesel Locomotives |at=59{{hyphen}}0aA, 59{{hyphen}}1aA (in work pp. 115–116) |date=January 1992<!--DATE OF CITED DIAGRAM, NOT ENTIRE BOOK--> |via=Barrowmore MRG |publisher=Mechanical & Electrical Engineering Department, British Railways Board |place=Derby |access-date=5 February 2023}}</ref>
| height = {{cvt|3.91|m|ftin}}<ref name="BRB100"/>
| axleload = 
| locoweight = {{ubl|''Original specification'':|{{cvt|127|t|t LT ST|0|order=out}}<ref name="RGzSav"/>|''UIC II and EU Stage IIIA spec.'':|{{cvt|129.6|t|t LT ST|0|order=out}}<ref name="pi42m"/>}}
| fuelcap = {{ubli|indent=1em|''Original specification'':|{{cvt|8180|L|0}}<ref name="RGzSav"/>|''UIC II and EU Stage IIIA spec.'':|{{cvt|5670|L|0}}<ref name="pi42m"/>}}
| lubecap = 
| coolantcap = 
| watercap = 
| sandcap = ''EU Stage IIIA specification'': {{avoid wrap|{{cvt|340|L|in3}}}}
| powersupply = 
| consumption = 
| watercons = 
| primemover = {{ubl|[[EMD 710|EMD 12N-710]]|''Original specification'':|12N-710G3B-EC<ref name="RGzSav"/>|''UIC II specification'':|12N-710G3B-U2|''EU Stage IIIA specification'':|12N-710G3B-T2<ref name="pi42m"/>}}
| rpmrange = 
| rpmrange low = 
| rpmrange idle = 
| rpmrange max = 
| enginetype = [[Two-stroke engine|Two-stroke]] [[V12 engine|V12]] [[Diesel engine|diesel]]
| aspiration = [[Turbo-diesel|Turbocharged]]
| displacement = {{cvt|8520|in3|L|order=flip}}
| alternator = EMD AR8/CA6<ref name="pi42m"/>
| generator = 
| tractionmotors = 6 × EMD D43TRC<ref name="pi42m"/>
| t/m amps 1 hr = 
| t/m amps cont =
| gear ratio = 
| multipleworking = AAR system{{efn|Also used by Classes {{brc|59|n}}, {{brc|67|n}}, {{brc|68|n}} (numbers 68008–68015 only), {{brc|69|n}}, {{brc|70|n|dab=diesel}}, and {{brc|73|n|9}}.}}
| trainheating = None
| locobrakes = [[Railway airbrake|Air]]
| locobrakeforce = {{cvt|68|t|t LT ST|0|order=out}}
| trainbrakes = [[Westinghouse air brake]]
| coupling = [[Screw coupler]]
| maxspeed = {{cvt|120|km/h|mph|order=flip}}<ref name="RGzSav"/>
| poweroutput = {{ubl|Total: {{cvt|3200|hp|kW|order=flip}}|At rails: {{cvt|2480|hp|kW|order=flip}}}}
| poweroutput start = 
| poweroutput 1 hr = 
| poweroutput cont = 
| tractiveeffort = 
| t/e starting = {{cvt|409|kN|lb-f}}<ref name="pi42m"/>
| t/e 1 hr = 
| t/e continuous = {{cvt|260|kN|lb-f}} at {{cvt|25.6|km/h|mph|order=flip}}<ref name="pi42m"/>
| factorofadhesion = 
| f/adh starting = 
| f/adh 1 hr = 
| f/adh continuous = 
| safety = {{ubl|[[Automatic Warning System|AWS]]|[[Train Protection & Warning System|TPWS]]|[[European Train Control System|ETCS]]{{efn|Locomotive 66039 only, as part of 'first in class' testing for the [[East Coast Main Line]] digital signalling programme.<ref>{{cite magazine |last=Clinnick |first=Richard |title=Modernising the Moorgate branch |magazine=Rail Express |date=April 2023 |issue=323 |page=87 |publisher=Mortons Media Group |location=Horncastle |issn=1362-234X |quote=Two DB Cargo locomotives, Nos. 66039 and 67002, are the 'first in class' for those fleets...}}</ref>}}}}
| operator = {{bulleted list|[[Colas Rail]]|[[DB Cargo UK]]|[[Direct Rail Services]]|[[Freightliner Group|Freightliner]]|[[GB Railfreight]]}}
| operatorclass = 
| powerclass = 
| numinclass = 
| fleetnumbers = {{bulleted list|66001–66250|66301–66305|66411–66434|66501–66599|66601–66625|66701–66799|66846–66850|66951–66957}}
| officialname = 
| nicknames = ''Shed'',<ref name="sheds"/> ''Ying Ying''{{citation needed|date=April 2025}}
| axleloadclass = [[Route Availability]] 7
| locale = 
| deliverydate = 
| firstrundate = 2 June 1998<ref name="15th">{{cite news |last1=Foster |first1=Stefanie |title=Fifteenth anniversary of the Class 66 |url=https://www.railmagazine.com/trains/current-trains/fifteenth-anniversary-of-the-class-66 |access-date=7 February 2023 |work=Rail Magazine |date=17 April 2013}}</ref>
| lastrundate = 
| retiredate = 
| withdrawndate = 
| preservedunits = 
| restoredate = 
| scrapdate = 
| currentowner = 
| disposition = In service
| notes = References to "UIC II" and "EU Stage IIA" relate to emissions control regulations set by the [[International Union of Railways|UIC]] and [[European Union|EU]], respectively. In general, and without regard for subsequent modifications, locomotives ordered before {{avoid wrap|31 December 2002}} will be original specification,<ref name="15th"/> while those ordered after that date will be either {{avoid wrap|UIC II}} or {{avoid wrap|EU Stage IIA}} specification.
}}

The '''British Rail Class 66''' is a type of six-axle diesel-electric freight locomotive developed in part from the {{brc|59}}, for use on UK railways. Since its introduction the class has been successful and has been sold to British and other European railway companies. In Continental Europe it is marketed as the [[EMD Class 66]] (JT42CWR).

== History ==

=== Background ===
On the [[privatisation of British Rail]]'s freight operations in 1996, [[Wisconsin Central Ltd.|Wisconsin Central Transportation Systems]] under the control of [[Ed Burkhardt]] bought a number of the newly privatised rail freight companies: [[Transrail Freight]], [[Mainline Freight]], [[Loadhaul]], and later, [[Railfreight Distribution]] and [[Rail Express Systems]]; thus controlling 93% of UK rail freight. After a public relations exercise involving the input of the general public, the company was named [[DB Cargo UK|English Welsh & Scottish Railway]] (EWS).<ref name="RGzSav"/>

EWS inherited a fleet of 1,600, mainly diesel, locomotives, with an average age of over 30 years; 300 had been cannibalised for spares. Typical of the fleet, the {{cvt|2,580|hp|kW}} [[British Rail Class 47|Class 47s]] needed a major overhaul every seven years, costing £400,000; yet had an average daily availability of less than 65% with only 16 days between major failures. To enable it to offer its stated lower pricing to customers, EWS needed to reduce operating costs and increase availability.<ref name="RGzSav"/>

=== Order and specification ===
After reviewing the existing privately commissioned {{brc|59}}, which was more powerful, highly reliable and with lower operating costs, EWS approached its builder [[Electro-Motive Diesel]] (EMD), then a division of [[General Motors]]. EMD offered their JT42CWR model, which had the same [[loading gauge]]-passing bodyshell as the Class 59. The engine and traction motors were different models to enable higher speeds, and the Class 66s incorporated General Motors' version of a "[[Bogie#Radial steering truck|self-steering bogie]]" ("radial truck", in American usage), designed to reduce track wear and increase adhesion on curves.<ref name="RGzSav"/>

Placing what was termed as "the biggest British loco order since steam days",<ref name="RGzSav"/> EWS placed an order for 250 units in May 1996 to be built at the EMD plant in [[London, Ontario]], Canada at a cost of £375&nbsp;million. Financed by Locomotion Capital (later [[Angel Trains]]), the first locomotives were ready in early 1998; the fastest delivery of an all-new locomotive type by GM.{{sfn|Jones|2018|p=22}}<ref name="s6">{{Cite web |url=http://www.thejunction.org.uk/cl66.html |title=rolling stock : class 66 {{sic|nolink=y}} |date=16 August 2006 |website=thejunction.org.uk |access-date=30 December 2013 |url-status=dead |archive-url=https://web.archive.org/web/20120220022152/http://www.thejunction.org.uk/cl66.html |archive-date=20 February 2012}}</ref> Initially, the locomotives were expected to be allocated the [[TOPS]] Class 61, the Class 66 designation was confirmed in July 1996.<ref>{{Cite magazine |last=Clinnick |first=Richard |date=16 March 2016 |title=Class '66s' 'clickety-clicked' for UK freight |url=https://www.railmagazine.com/operations/freight/class-66s-clickety-clicked-for-uk-freight |access-date=1 June 2025 |magazine=[[Rail (magazine)|RAIL]] |issue=796 |issn=0953-4563 |quote=RAIL 282 carried the design of what the new EWS locomotive (at the time expected to be a Class 61) would look like, with full details. [...] That issue of RAIL also confirmed that the ‘61’ would be what is (today) the Class 66, while what had been specified then as a ‘66’ turned out to be what is now the ‘67’.}}</ref>

The [[EMD 710]] 12-cylinder diesel engine is a development of a two-stroke engine used for over 20 years, whilst the EM2000 control equipment is the same as that used on the [[Iarnród Éireann]] [[IÉ 201 Class|201 Class]]. EWS reduced the locomotive's time into operation through specifying cab systems laid out like the Class 59, whilst increasing availability with a fuel tank of {{convert|8180|litre}} capacity, compared to {{convert|3470|litre}} on a standard Class 47.<ref name="RGzSav"/>

=== United Kingdom ===
[[File:EWS 66125.jpg|thumb|66125 in EWS livery at {{rws|Eastleigh}}]]
The first locomotive shipped to the UK arrived at [[Immingham]] in June 1998,<ref name="s6"/> taken to [[Derby]] for testing. The second was taken to AAR's Pueblo Test Centre for endurance testing, before shipping to the UK. The locomotives then shipped at a rate of 11 per month into the UK via [[Newport Docks]], until the order was completed in December 2001. After unloading, EWS engineers then simply took off the tarpaulin, unblocked the suspension, and finally as each was shipped with water and fuel, connected the batteries, before starting the engine and handing the locomotive into service. The ability to simply start up '66s' on the dockside and drive them under their own power to depots to enter service was nothing short of a revelation compared with many other BR locomotives, particularly the {{brc|60|fs}}.{{sfn|Jones|2018|pp=22,24}}<ref name="RGzSav"/>

Each locomotive is specified and guaranteed to 95% availability, aiming for a minimum of 180 days mean time between failures. It is designed to cover 1.6&nbsp;million km between major rebuilds, equivalent to 18 years' service, with each major rebuild costed at £200,000.<ref name="RGzSav"/>

In 1998 [[Freightliner Group|Freightliner]] placed an order for locomotives. They were followed by [[GB Railfreight]], and then [[Direct Rail Services]]. The last of more than 500 built over an 18-year period was No 66779, ''Evening Star'', delivered to GB Railfreight in spring 2016.{{sfn|Jones|2018|p=26}}

Although sometimes unpopular with many rail enthusiasts, due to their ubiquity and having caused the displacement of several older types of (mostly) British built locomotives, their high reliability has helped rail freight to remain competitive. Rail enthusiasts labelled the type "The Red Death" as they displaced many older types of locomotive<ref>{{Cite Q |Q105958844 |last=Buck |first=Martin |publisher=Freightmaster Publishing |location=Swindon |page=7}}</ref> whilst also acquiring the nicknames of "sheds" for the EWS (now DBS) locomotives (due to their upturned roof looking like a shed roof)<ref name="sheds">{{Cite Q |Q105958844 |last=Buck |first=Martin |publisher=Freightmaster Publishing |location=Swindon |page=60}}</ref> with the Freightliner locomotives being called "Freds" as a portmanteau of ''Freightliner'' and ''Shed''.<ref>{{Cite magazine |editor1-last=Piggott |editor1-first=Nick |title=Sheds and Freds |magazine=The Railway Magazine |date=October 1999 |volume=145 |issue=1,182 |page=13 |publisher=IPC |location=London |issn=0033-8923}}</ref>

=== Continental Europe ===
{{Main|EMD Series 66}}
The Class 66 design has also been introduced to Continental Europe where it is currently certified for operations in Germany, the Netherlands, Belgium, Luxembourg, Sweden, Norway, Denmark, France, and Poland, with certification pending in the Czech Republic and Italy. They currently operate on routes in Sweden and Denmark and between Germany, Belgium, The Netherlands and Poland. As a result of its well-known British identity, EMD Europe markets the locomotive as "[[EMD Series 66|Series 66]]".

=== UK importation ===
By 2011, following an increase in UK rail traffic after the 2008 Global Economic Crisis, EMD were struggling to source critical components of the locomotive — specifically castings. The final units of the Class 66 were produced in the London, Ontario plant that year following an industrial dispute and the introduction of new EU crash and emissions regulations which culminated in the cessation of production.

Due to a reduction in European freight volumes and migration of several operators to electric traction using multi-current locomotives such as the [[Alstom Traxx]] and Siemens [[Eurosprinter]], since mid-2012, a number of EMD Series 66 locomotives have been imported by GBRf and converted to UK type specifications. To date:<ref name="Imports">{{Cite news |title=Import of EMD Series 66 increases due to lack of UK motive power |magazine=Railway Gazette |date=September 2013}}</ref>
* 2012: Three ex-Dutch locos, which have been numbered 66747&ndash;749. The former identities of these were DE6316, DE6313 and DE6315 respectively.
* 2013: Two ex-German "Rush Rail" locomotives, which have been numbered 66750 and 66751. The former identities of these were DE6606 (also used in Sweden with the number T664025) and DE6609 (also 2906) respectively
* 2019: Three ex-Swedish locomotives, which have been numbered 66790&ndash;792. The former identities of these were T66403, T66404 and T66405 respectively.
* 2024: Eleven locomotives from France, which have been numbered 66306&ndash;316.<ref name="ORR-66306-16">{{cite web |author=Office of Rail and Road |date=1 February 2024 |title=GBRf Class 66 Upgrade |url=https://www.orr.gov.uk/sites/default/files/2024-02/gbrf-class-66-upgrade-orr-authroisation-letter-2024-02-02.pdf |accessdate=28 April 2025}}</ref>

=== Emission compliance ===
Numbers 66752-779 were the last Class 66s ordered for service in Great Britain because of increasingly stringent [[Non-road engine|emission regulations]]. 66779 was the last Class 66 ever to be built. Although the Class 66s meet stage 3a of the regulations, they do not meet stage 3b. Stage 3b would have required additional exhaust treatment equipment that could not easily be accommodated within the UK [[loading gauge]]. The same restrictions apply to the {{brc|68}} and {{brc|70|dab=diesel}}. The restriction does not apply to second-hand locomotives, provided that they are imported from within the [[European Union]]. The purpose of the regulation was to put a cap on the total number of non-compliant locomotives in the EU.<ref>{{Cite magazine |last=Bickerdyke |first=Paul |magazine=Rail Express |title=Future of locos is 'in the secondary market' |issue= 217 |date=June 2014 |page=9 |issn=1362-234X}}</ref>

== Current operators ==

=== Colas Rail ===
{{unreferenced section|date=April 2025}}
[[File:66850 at Ribblehead with KFA wagons.jpg|right|thumb|66850 at [[Ribblehead]] with KFA wagons]]
[[Colas Rail]] took over the ex-Advenza Cemex Cement flow after the company went bust, initially using the five former Advenza Freight and Direct Rail Services locomotives 66406-410 which had been renumbered 66841-845. Subsequently, as part of a deal with GB Railfreight, Colas Rail replaced them with five ex-Freightliner 66573-577 which were renumbered 66846–850. The five ex-Direct Rail Services class 66s were transferred to GB Railfreight and renumbered 66742–746.

=== DB Cargo UK ===
[[File:DB Cargo locomotive number 66034 at Didcot Parkway.jpg|thumb|right|Class 66 locomotive 66034 in DB livery at Didcot Parkway]]
[[DB Cargo UK]] bought out EWS. Their Class 66 fleet includes four locomotives capable of [[bank engine|banking]] heavy trains over the [[Lickey Incline]]. On these specific locomotives, the knuckle coupler has been modified to allow remote releasing from inside the cab, whilst in motion. It also includes fifteen locomotives fitted with [[Radio Electronic Token Block|RETB]] signalling equipment, for working in northern Scotland and RETB-fitted branchlines.<ref name="P5Comb2008">{{harvnb|Fox|Hall|Pritchard|2008|p=}}{{page needed|date=August 2013}}</ref> A few DB Cargo UK Class 66s are now working in Europe as part of [[DB Cargo France]] and [[DB Cargo Polska]].<ref name="The Railway Magazine"/>

=== Direct Rail Services ===
{{unreferenced section|date=April 2025}}
[[File:Direct Rail Services 66412.jpg|thumb|right|[[Direct Rail Services]] Class 66 locomotive 66412, in 'Compass' livery]]
[[Direct Rail Services]] (DRS), which at the time was a subsidiary of [[British Nuclear Fuels Ltd|British Nuclear Fuels]] (BNFL), ordered ten '''Class 66/4''' locomotives (66401–410) in 2002, employed on new Anglo-Scottish traffic, some with [[Stobart Rail Limited|Stobart Rail]]. In 2006, ten more T2 specification units (66411–420) were delivered, a further ten (66421–430) in late 2007, and four more (66431–434) in 2008.

After the first 20 Class 66s operated by DRS were transferred to Freightliner and GB Railfreight, leaving just 14 in their fleet, DRS leased the five former Fastline Freight locomotives.

=== Freightliner ===
{{unreferenced section|date=April 2025}}
[[File:CLASS66LOCOMOTIVE.JPG|right|thumb|[[Freightliner Group|Freightliner]] 66610 on the [[East Coast Main Line]] near [[York]]]]
[[Freightliner Group|Freightliner]] followed EWS by initially ordering five new '''Class 66/5''' locomotives, and have continued to order in small batches. As of 2020, the Class 66/5 fleet had reached 89 examples; 66521 was withdrawn after the [[Selby rail crash|2001 crash at Great Heck]] and later scrapped.

In 2000 a new '''Class 66/6''' sub-class was built, with a lower gear ratio, enabling heavier trains to be hauled, albeit at slower speed. There are presently 25 examples of this class, numbered 66601-625. Some of these locomotives have since been exported for use with [[Freightliner Group#Poland|Freightliner Poland]].

During 2004 the company took delivery of the most recent '''Class 66/9''' sub-class of the locomotive, which are a low-emission variant. All new locomotives for all companies are now of the low-emission "T2" type. The seven such locomotives as 66951-957.

In 2011, Freightliner took on Direct Rail Services' 66411-420.

=== GB Railfreight ===
[[File:Class 66744 at Victoria.jpg|thumb|[[GB Railfreight]] 66744 waiting at [[Victoria Station (London)|Victoria station]].]]
[[GB Railfreight]] initially leased seventeen Class 66/7 locomotives, before increasing its fleet to 32. During April 2006 five more low-emission locomotives (numbered 66718-722) were delivered, liveried for use on the [[Metronet (British infrastructure company)|Metronet]]/[[Transport for London]] contracts. A further order for five more locomotives (66723-727) was delivered in early 2007, and another five locomotives (66728–732) in April 2008. 66733-746 are formed of Class 66s from Direct Rail Services, Freightliner and Colas Rail. In 2011 66720 was painted in a special "Rainbow" livery.<ref>{{Cite magazine |url=http://railwayherald.com/magazine/download/274 |title=GB Railfreight goes for the unusual look to brighten a dull day |magazine=Railway Herald |page=4 |issue=274 |date=11 July 2011 |access-date=11 July 2011 |issn=1751-8091}}</ref> In June 2012, 66734 derailed at Loch Treig whilst working 6S45 North Blyth–Fort William and was consequently cut up on site and scrapped.<ref>{{Cite web |url=http://www.britishrailways.tv/train-videos/2013-10/now-scrapped-gbrf-66734-down-the-bank-at-loch-treig-scotland/ |title=Now scrapped GBRf 66734 down the bank at Loch Treig Scotland |work=BritishRailways.tv |year=2015 |access-date=10 April 2015 |archive-url=https://web.archive.org/web/20150414054051/http://www.britishrailways.tv/train-videos/2013-10/now-scrapped-gbrf-66734-down-the-bank-at-loch-treig-scotland/ |archive-date=14 April 2015 |url-status=dead}}</ref>

In September 2013, [[GB Railfreight]] announced a new order of a further 8 Class 66/7 locomotives from EMD, the first of the class to be built at EMD's [[Muncie, Indiana]] plant. On 2 February GBRf ordered a further 13 locomotives. These 21 locomotives are numbered 66752&ndash;772.<ref>{{Cite web |url=http://www.railwaygazette.com/news/single-view/view/gb-railfreight-expands-class-66-fleet.html |title=GB Railfreight expands Class 66 fleet |work=[[Railway Gazette]] |date=4 September 2013 |access-date=6 February 2014 }}{{Dead link|date=July 2025 |bot=InternetArchiveBot |fix-attempted=yes }}</ref> Numbers 66752&ndash;756 were shipped from America and arrived at [[Newport Docks]] in July 2014. No. 66752 has been named ''The Hoosier State'', a nickname for [[Indiana]].<ref name="ReferenceA">{{Cite magazine |editor-last=Dunn |editor-first=Pip |title=Reborn in the USA! America builds first 66s |magazine=Railways Illustrated |date=August 2014 |page=9 |issn=1479-2230}}</ref> A further seven locomotives (66773&ndash;779) were later added to the fleet, utilising six power units that had been in the UK, plus one recovered from the scrapped 66734. The presence of these power units in the UK circumvented European emission compliance regulations and permitted them to be exported to EMD Muncie for installation in further class 66 bodyshells.{{citation needed|date=April 2025}}

The final Class 66 built, 66779, remained under a tarpaulin until 10 May 2016 when it was revealed at the NRM York with a special livery and nameplates to commemorate the fact it is the final Class 66 ever built for the British market.{{sfn|Jones|2018|p=26}}<ref>{{Cite news |url=http://www.railmagazine.com/news/fleet/2016/02/16/brand-new-class-66s-delivered-to-yorkshire |title=Brand new Class 66s delivered to Yorkshire |work=RAIL |date=16 February 2016 |access-date=16 February 2016}}</ref> The locomotive has been painted in BR Lined Green and named ''Evening Star'', in reference to [[BR Standard Class 9F]] [[92220 Evening Star|92220 ''Evening Star'']] which was the last BR steam locomotive to be built. It was unveiled in a special ceremony inside the Great Hall at the [[National Railway Museum]] in York on 10 May 2016 before staying there opposite its namesake, No. 92220, for two weeks. At the same ceremony, the CEO of GBRf, John Smith, handed the curator of the National Railway Museum a document offering 66779 to the national collection when it is retired in about 40 years time.<ref>{{Cite magazine |editor1-last=Milner |editor1-first=Chris |title=Last class 66 is named Evening Star |magazine=The Railway Magazine |date=June 2016 |volume=162 |issue=1,383 |page=7 |publisher=Mortons Media |location=Horncastle |issn=0033-8923}}</ref>

In addition to those locomotives sourced from domestic operators (Direct Rail Services, Freightliner, Colas Rail and DB Cargo UK), eight further locomotives have been obtained from European operators. A further five have been purchased from Heavy Haul Power International and will be transferred from Germany beginning in April 2021. The locos will go to Doncaster to be converted to UK specification.<ref>{{Cite web |title=GB Railfreight acquires Class 66 locos from Germany |url=https://www.railwaygazette.com/uk/gb-railfreight-acquires-class-66-locos-from-germany/57551.article |website=Railway Gazette |access-date=27 October 2020}}</ref>

== Former operators ==
=== Advenza Freight ===
{{unreferenced section |date=April 2025}}
[[Advenza Freight]], a [[Cotswold Rail]] subsidiary, operated Class 66841-844. They were primarily used on Advenza's scrap and cement flows. The locomotives originated from the batch that Direct Rail Services returned.

Advenza Freight ceased operations in October 2009 and the Class 66s returned to storage. These locos were housed at Gloucester Carriage Sidings where Advenza Freight was based.

=== Fastline ===
[[File:66305 , North Wingfield (4248685807).jpg|thumb|66305 in [[Fastline]] livery in the snow]]
[[Fastline]] operated intermodal services between [[Doncaster International Railport|Doncaster]] and Birmingham International Railfreight Terminal (BIFT), and [[Thamesport]], in North Kent, using refurbished {{brc|56}} locomotives. The company ordered five Class 66/3 locomotives to operate a coal flow from [[Hatfield Colliery]], which were delivered in 2008.<ref>{{Cite magazine |url=http://railwayherald.com/magazine/download/137 |title=Fastline Freight's 66/3s arrive at Newport |magazine=Railway Herald |issue=137 |page=3 |issn=1751-8091 |access-date=30 December 2013 |date=30 June 2008}}</ref><ref>{{Cite magazine |title=Fastline's first Class 66/3s arrive for UK power contract |magazine=Rail |issue=595 |date=2 July 2008 |page=6}}</ref>

Following the demise of Jarvis in 2010, and Fastline going into administration on 29 March 2010,<ref>{{Cite web |url=http://www.fastline-group.com/ |title=Fastline Ltd |access-date=30 December 2013 |url-status=dead |archive-url=https://web.archive.org/web/20100409060406/http://www.fastline-group.com/ |archive-date=9 April 2010}}</ref> these locomotives were placed in storage, being towed to Direct Rail Services' [[Carlisle Kingmoor TMD|Carlisle Kingmoor]] and [[Crewe Gresty Lane TMD|Crewe Gresty Lane]] depots for storage. During 2011, DRS repainted the five ex-Fastline locomotives and added them to their own fleet, keeping their original numbers.{{citation needed|date=April 2025}}

== Driver reception ==
The British train drivers' union [[ASLEF]] has complained that the locomotives are unfit and unsafe to work in, citing excessive heat, noise levels and poor seating.

In April 2007, ASLEF proposed a ban on their members driving the locomotives during the British summer 2007 period. [[Keith Norman]], ASLEF's general secretary, described the cabs as "unhealthy, unsafe and unsatisfactory". Research showed that in July 2006, when the weather had been extremely hot, the number of incidents where a driver had [[Signal passed at danger|passed a signal at danger (SPAD)]] increased.<ref name="cab1">{{Cite news |url= https://news.bbc.co.uk/2/hi/uk_news/6605713.stm |title=Boycott threat over 'dirty' locos |work=BBC News |date=30 April 2007 |access-date=30 December 2013}}</ref> EWS entered into discussions and made amendments to a series of trial locomotives,<ref name="cab1"/> GB Railfreight and Freightliner also investigated cab improvements.<ref>{{Cite journal |url=http://www.aslef.org.uk/shared_asp_files/GFSR.asp?NodeID=105554 |title=Positive moves from operators on 66s |page=7 |journal=Locomotive Journal |publisher=[[ASLEF]] |date=April 2007 |access-date=10 July 2011 |archive-url=https://web.archive.org/web/20110927011750/http://www.aslef.org.uk/shared_asp_files/GFSR.asp?NodeID=105554 |archive-date=27 September 2011 |url-status=dead}}</ref> In June 2007, progress on the issue led ASLEF to withdraw its threat of industrial action.<ref>{{Cite web |url=http://www.aslef.org.uk/article.php?group_id=1051 |title=News Archive: Progress on 66 cabs leads to normal working |date=14 June 2007 |website=[[ASLEF]] |access-date=30 September 2017 |archive-date=30 September 2017 |archive-url=https://web.archive.org/web/20170930132542/http://www.aslef.org.uk/article.php?group_id=1051 |url-status=dead}}</ref>

In Norway, [[CargoNet]] related complaints about the noise levels in the [[CargoNet CD66|CD66]] variant of the Class 66 resulted in higher pay rates for drivers.<ref>{{Cite web |url=http://www.lokmann.no/aktu04/041005cnenighet.htm |title=Enighet mellom NLF og CargoNet |language=NO |date=5 October 2004 |website=lokmann.no |url-status=dead |archive-url=https://web.archive.org/web/20070928222250/http://www.lokmann.no/aktu04/041005cnenighet.htm |archive-date=28 September 2007}}</ref>

== Accidents and incidents ==
* On 28 February 2001, 66521 was involved in the 2001 [[Selby rail crash|Great Heck rail crash/Selby rail crash]] which resulted in 10 deaths including the driver Stephen Dunn.<ref>{{Cite news |url=https://news.bbc.co.uk/2/hi/uk_news/england/1703935.stm |title=Tragic results of driver fatigue |date=13 December 2001 |work=BBC News}}</ref> The locomotive was written off and scrapped as a result of major damage sustained in the accident.<ref name="GHWO">{{Cite web |url=https://railuk.info/diesel/getloco.php?item=%2066521 |title=Diesel/Electric Locomotive Information: 66521 |website=UKRail.co.uk}}</ref>
* On 9 February 2006, a freight train hauled by [[DB Cargo UK|English Welsh & Scottish]] 66017, [[derailment|derailed]] at [[Brentingby]] Junction near [[Melton Mowbray]]. Having passed a signal at danger, the locomotive and the first three wagons were derailed at [[catch points]] at the end of the Up Goods Loop. There were no injuries.<ref>{{Cite web |url=http://www.railwaysarchive.co.uk/docsummary.php?docID=1019 |title=Rail Accident Report: Derailment of a freight train at Brentingby Junction, near Melton Mowbray – 9 February 2006 |author=Rail Accident Investigation Branch |website=Railways Archive |date=January 2007 |access-date=22 June 2011}}</ref>
[[File:Derailed locomotive at Carrbridge - geograph.org.uk - 1679729.jpg|thumb|right|66&nbsp;048 lies in the snow and trees following the Carrbridge derailment.]]
* On 4 January 2010, a freight train, hauled by 66048, derailed at {{rws|Carrbridge}} in [[Winter of 2009–10 in Great Britain and Ireland|snowy weather]], blocking the [[Highland Main Line]].<ref name="BBC844120">{{Cite news |url=https://news.bbc.co.uk/1/hi/scotland/highlands_and_islands/8441120.stm |title=Snow derailment problems continue |work=BBC News |date=4 January 2010 |access-date=5 January 2010}}</ref> Having passed a signal at danger the train was derailed at [[Catch points|trap points]],<ref name="RAIB">{{Cite web |url=http://www.raib.gov.uk/cms_resources.cfm?file=/110224_R032011_Carrbridge.pdf |title=Investigation into an accident involving a freight train at Carrbridge, Inverness-shire, on 4 January 2010 |website=Rail Accident Investigation Branch |access-date=16 January 2010}}</ref> subsequently falling down an embankment into trees and injuring the two crew members. The locomotive was hauling container flats from [[Inverness]] to Mossend Yard on behalf of [[Stobart Rail Freight|Stobart Rail]].<ref>{{Cite magazine |date=13 January 2010 |title=Probes into SPADs in Devon and Scotland |magazine=[[Rail (magazine)|Rail]] |issue=635 |pages=8–9 |publisher=[[Bauer Media Group]]}}</ref> The line was reopened on 12 January.<ref name="NR">{{Cite web |url=http://www.networkrailmediacentre.co.uk/content/detail.aspx?ReleaseID=4944&NewsAreaID=2 |title=Inverness-Perth Route Reopens After a Week of Endeavour |website=Network Rail |date=13 January 2010 |access-date=11 June 2010 |archive-url=https://web.archive.org/web/20131230235200/http://www.networkrailmediacentre.co.uk/content/detail.aspx?ReleaseID=4944&NewsAreaID=2 |archive-date=30 December 2013 |url-status=dead}}</ref>
* On 21 November 2011, 66111 derailed between Exeter Central and Exeter St Davids on working an engineering works service.<ref>{{Cite news |url=http://www.thisisexeter.co.uk/VIDEO-Derailed-train-causes-services-cancelled/story-13940812-detail/story.html |title=VIDEO: Derailed train causes services to be cancelled |work=Exeter Express and Echo |date=25 November 2011 |access-date=30 December 2013 |archive-url=https://archive.today/20130505084841/http://www.thisisexeter.co.uk/VIDEO-Derailed-train-causes-services-cancelled/story-13940812-detail/story.html |url-status=dead |archive-date=5 May 2013}}</ref>
* On 28 June 2012, GBRf operated 66734 derailed at [[Loch Treig]] whilst working the 6S45 [[North Blyth]] to [[Fort William, Scotland|Fort William]] Alcan Tanks.<ref>{{Cite news |url=https://www.telegraph.co.uk/topics/weather/9364866/Man-winched-to-safety-in-Scotland-after-floods-derail-train.html |archive-url=https://wayback.archive-it.org/all/20120630205209/http://www.telegraph.co.uk/topics/weather/9364866/Man-winched-to-safety-in-Scotland-after-mudslide-derails-train.html |url-status=dead |archive-date=30 June 2012 |title=Man winched to safety in Scotland after floods derail train |newspaper=[[The Daily Telegraph]] |date=29 June 2012}}</ref> Due to its position and the environmental risks associated with recovery, after agreement from owners Porterbrook it was cut-up on site and the mechanics recycled as spare parts.<ref>{{Cite magazine |url=http://www.railwaymagazine.co.uk/news/derailed-class-66-to-be-cut-up-on-site |title=Derailed Class 66 to be cut up on site |first=Chris |last=Milner |magazine=[[The Railway Magazine]] |date=31 January 2013 |access-date=26 December 2013 |archive-url=https://web.archive.org/web/20131227065846/http://www.railwaymagazine.co.uk/news/derailed-class-66-to-be-cut-up-on-site |archive-date=27 December 2013 |url-status=dead}}</ref><ref name="QTS">{{Cite web |url=https://www.youtube.com/watch?v=O20QMStd_kU&feature=emb_logo |title=Loco Recovery |author=QTS Group |date=13 June 2014 |website=YouTube |access-date=12 January 2021}}</ref>
* On 1 August 2015, 66428 was hauling an engineering train that ran into the rear of another engineering train at [[Logan, Ayrshire]]. It was severely damaged.<ref name="Logan">{{Cite web |url=https://www.gov.uk/government/news/collision-at-logan |title=Collision near Logan |work=Rail Accident Investigation Branch |date=14 August 2015 |access-date=17 August 2015}}</ref> The train that was run into was hauled by 66305.<ref name="Loganreport">{{Cite web |url=https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/537117/R132016_160713_Logan.pdf |title=Freight train collision near Logan, East Ayrshire 1 August 2015 |work=Rail Accidents Investigation Branch |date=13 July 2016 |access-date=16 July 2016}}</ref>
* On 14 August 2017, 66713 was hauling a freight train that derailed near {{rws|Ely}}, due to defective suspension on the wagon that was first to derail. The railway between Ely and {{rws|Peterborough}} was closed for a week.<ref name="RAIBEly">{{Cite web |url=https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/731447/R092018_180802_Ely_West_Junction.pdf |title=Freight train derailment at Ely West Junction 14 August 2017 |work=Rail Accidents Investigation Branch |access-date=2 August 2018}}</ref>
* On 4 September 2018, 66230 was hauling a freight train which collided with a vehicle on a level crossing at [[Dollands Moor Freight Yard]], [[Kent]]. One cab was extensively damaged in the post-impact fire.<ref name="RAIBDollands">{{Cite web |url=https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/811075/R052019_190625_Dollands_Moor.pdf |title=Collision between a train and utility vehicle at Dollands Moor freight yard, Kent 4 September 2018 |work=Rail Accidents Investigation Branch |access-date=25 June 2019}}</ref> The locomotive was stored in [[Toton TMD]].{{citation needed|date=April 2025}}
* On 23 January 2020, 66154 was hauling a freight train which derailed at [[Wanstead Park]] and ran for {{convert|2.5|mi|km}} before stopping near {{rws|Walthamstow Queen's Road}} station.<ref name="RAIBWanstead">{{Cite web |url=https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/935354/R122020_201116_Wanstead_Park.pdf |title=Derailment of a Freight Train near Wanstead Park, London 23 January 2020 |work=Rail Accidents Investigation Branch |access-date=16 November 2020}}</ref>
* On 23 March 2020, 66057 ran through a [[buffer stop]] at the end of a siding at {{rws|Bromsgrove}} and was derailed. The derailment caused the locomotive to foul the main line, and a {{brc|170}} [[diesel multiple unit]], unit number 170 107, collided with the derailed locomotive at around {{convert|85|mph|km/h}}. No one was injured.<ref name="RAIBBromsgrove">{{Cite web |url=https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/936320/R142020_201119_Bromsgrove.pdf |title=Passenger train collision with a derailed locomotive at Bromsgrove 23 March 2020 |work=Rail Accidents Investigation Branch |access-date=18 November 2020}}</ref> The driver of the locomotive was subsequently convicted of an offence contrary to the [[Health and Safety at Work etc. Act 1974]]. He was sentenced to 8 months' imprisonment, suspended for 18 months.<ref name="ORR100123">{{cite web |url=https://www.orr.gov.uk/search-news/driver-sentenced-eight-months-imprisonment-causing-crash |title=Driver sentenced to eight months imprisonment for causing crash |publisher=Office of Rail and Road |accessdate=10 January 2023}}</ref>
* On 11 November 2020, 66603 was hauling a freight train that derailed at {{rws|Sheffield}}.<ref name="Rail111120">{{Cite magazine |url=https://www.railmagazine.com/news/network/freight-train-derails-at-sheffield |title=Freight train derails at Sheffield |magazine=RAIL |date=11 November 2020 |access-date=4 December 2020}}</ref> The derailment was caused by broken rail fastenings which allowed the track to spread.<ref name="RAIBSheffield">{{Cite web |url=https://www.gov.uk/government/news/freight-train-derailment-at-sheffield-station |title=Freight train derailment at Sheffield station |work=Rail Accidents Investigation Branch |access-date=4 December 2020}}</ref>
* On 19 August 2021, 66754 was hauling a freight train which collided with a tractor on a level crossing between {{rws|March}} and {{rws|Whittlesea}} in [[Cambridgeshire]]. The locomotive and three wagons were derailed.<ref name="BBC58269427">{{Cite web |url=https://www.bbc.co.uk/news/uk-england-cambridgeshire-58269427 |title=Cambridgeshire: Train driver injured in level crossing collision |work=BBC News Online |date=19 August 2021 |accessdate=20 August 2021}}</ref><ref name=RAIBWhittleseyOpen>{{Cite web |url=https://www.gov.uk/government/news/collision-and-derailment-of-a-freight-train-at-kisby-user-worked-level-crossing |title=Collision and derailment of a freight train at Kisby user worked level crossing |work=Rail Accident Investigation Branch |accessdate=14 September 2021}}</ref>
* On 24 December 2021, 66779, working a train from Hams Hall (near Birmingham) to London Gateway derailed on the down Thames Haven line while on the approach to the port near to Stanford-le-Hope in Essex.<ref name="Gateway">{{Cite web |url=https://www.gov.uk/government/news/freight-train-derailment-at-london-gateway |title=Freight train derailment at London Gateway |publisher=Rail Accident Investigation Branch |accessdate=31 January 2022 }}</ref><ref name="RAIBGateway">{{cite web |url=https://assets.publishing.service.gov.uk/media/6585794eed3c3400133bfdea/R142023_231219_London_Gateway.pdf |title=Freight train derailment at London Gateway, Essex, 24 December 2021 |publisher=Rail Accident Investigation Branch |date=December 2023 |accessdate=5 April 2024}}</ref>
*On 5 July 2022, 66729 was hauling a freight train that passed a signal at danger and ran into the rear of another freight train near Loversall Carr Jn, [[Doncaster]].<ref name="Loversall">{{Cite web |url=https://www.gov.uk/government/news/signal-passed-at-danger-and-collision-between-freight-trains-near-to-loversall-carr-junction-doncaster |title=Signal passed at danger and collision between freight trains near to Loversall Carr Junction |publisher=Rail Accident Investigation Branch |accessdate=22 July 2022}}</ref>
* On 19 October 2022 66739 was hauling a loaded cement train from Clitheroe Castle Cement Gb to Carlisle N.Y. when eight wagons derailed at Petteril Bridge Junction with one crashing into the River Petteril and one half way down the embankment.<ref>{{Cite web |title=Carlisle – Newcastle / Skipton trains disrupted after freight train derailment |last=Holden |first=Michael |work=RailAdvent |date=20 October 2022 |access-date=21 October 2022 |url=https://www.railadvent.co.uk/2022/10/carlisle-newcastle-skipton-trains-delayed-after-freight-train-derailment.html}}</ref>
*On 5 April 2024, 66776 [[signal passed at danger|passed a red signal]] and was derailed at {{rws|West Ealing}}.<ref name="BBC68738960">{{cite news |url=https://www.bbc.co.uk/news/uk-england-london-68738960 |title=Passengers face delays after derailment at West Ealing |work=BBC News |date=5 April 2024 |accessdate=5 April 2024}}</ref>

== Sub-classes ==
{{original research section|date=October 2024}}
Minor differences between different orders, and different operating companies have resulted in a number of subclasses being defined.{{citation needed|date=October 2024}}
{|class="wikitable" style="clear:both;"
|-
!Subclass
!Quantity
!width=80px|Loco nos.
!Operators
!Comments
|-
| rowspan="2" |'''Class 66/0<ref name="s6"/>'''
|223
|{{ubl|66001–007|66009–015|66017–030|66032–045|66047|66049–057|66059–080|66082–090|66092–107|66109–121|66123–125|66127–131|66133–140|66142–146|66148|66150-155|66157-160|66162-163|66165-166|66168-170|66172-182|66183|66185-193|66195–220|66222-229|66231–237|66239–249}}
|[[DB Cargo UK]]
|
* The original order of 250.<ref name="s6"/>
* 65 locomotives were transferred to subsidiary [[Euro Cargo Rail]] during the English, Welsh & Scottish Railways era: 66010, 66022, 66026, 66028, 66029, 66032, 66033, 66036, 66038, 66042, 66045, 66049, 66052, 66062, 66064, 66071–073, 66123, 66179, 66190, 66191, 66193, 66195, 66201–205, 66208–220, 66222–226, 66228, 66229, 66231–236, 66239–247, 66249.<ref name="The Railway Magazine">{{cite magazine |url=https://www.railwaymagazine.co.uk/5928/from-the-archive-brits-abroad/ |title=Brits Abroad |magazine=The Railway Magazine |access-date=26 August 2020}}</ref>
* 15 locomotives have been sent to the Polish division of the DB Cargo group, [[DB Cargo Polska]]: 66146, 66153, 66157, 66159, 66163, 66166, 66173, 66178, 66180, 66189, 66196, 66220, 66227, 66237, 66248.<ref name="The Railway Magazine"/>
* Others make regular visits to the UK for attention at Toton depot.
* In December 2017 the company sold ten of its domestic fleet Class 66s to GB Railfreight: 66008, 66016, 66046, 66058, 66081, 66132, 66141, 66184, 66238 and 66250. These were reclassified as Class 66/7 and renumbered 66780–789.<ref>{{Cite web |last=Hewitt |first=Sam |date=4 January 2018 |title=GB Railfreight buys DB Cargo Class 66s |url=https://www.railwaymagazine.co.uk/4324/gb-railfreight-buys-db-cargo-class-66s/ |work=The Railway Magazine}}</ref>
* 66048 was withdrawn in 2016 following an accident at Carrbridge<ref>{{cite web |last1=Clinnick |first1=Richard |title=Crash damaged Class 66 moves to Stoke |url=https://www.railmagazine.com/news/fleet/2016/03/23/crash-damaged-class-66-moves-to-stoke |website=Rail Magazine |access-date=27 July 2025 |ref=11}}</ref>
* 66230 is in storage at [[Toton TMD]] following an accident at [[Dollands Moor Freight Yard|Dollands Moor]].{{citation needed|date=April 2025}}
|-
|5
|{{ubl|66031|66091|66108|66122|66126}}
|[[Direct Rail Services]]
|On long-term lease from [[DB Cargo UK]], all in DRS livery.{{citation needed|date=April 2025}}
|-
|'''Class 66/3'''
|16
|{{ubl|66301–305|66306–316}}
|[[GB Railfreight]]
|{{ubl|Originally ordered by Fastline Freight.|Imported from France.<ref name="ORR-66306-16"/>}}
|-
|rowspan=2|'''Class 66/4'''
|10
|66411–420
|[[Freightliner Group|Freightliner]]
|Acquired from Direct Rail Services in 2011. 66411, 66412 & 66417 exported for use by Freightliner PL.<ref name="The Railway Magazine"/>
|-
|14
|66421-434
|[[Direct Rail Services]]
|Intended use is on intermodal traffic. Occasionally used on [[nuclear flask]] traffic.<ref name="s6"/>
|-
|'''Class 66/5'''
|81
|{{ubl|66501–520|66522–526|66528–529|66531–534|66536–572|66585|66587–594|66596–599}}
| rowspan="2" |[[Freightliner Group|Freightliner]]
|
* Replaced {{brc|47|s}} and {{brc|57|s}} on Intermodal freight.<ref name="s6"/>
* 66521 [[write-off|written off]] after [[Great Heck rail crash]].<ref name="GHWO"/>
* 66527, 66530, 66535, 66582, 66583, 66584, 66586 and 66595 have been exported to Poland, the operating subsidiary Freightliner PL.<ref name="The Railway Magazine"/>
* 66573–581 have been sold to Colas Rail and GB Railfreight and renumbered 66846–850 and 66738–741 respectively.{{citation needed|date=April 2025}}
|-
| rowspan="3" |'''Class 66/6'''
|28
|{{ubl|66601–607|66610|66613–623}}
|
* Top speed of {{convert|65|mi/h|km/h|abbr=on}} – reduced gearing to cope with heavier oil, aggregates and cement trains.<ref name="s6"/>
* 66608, 66609, 66611, 66612, 66624 and 66625 have been exported to Poland, the operating subsidiary Freightliner PL.<ref name="The Railway Magazine"/>
|-
|10
|66651-660
|[[DB Cargo UK]]
|
* 66/0s regeared from February 2024 to replace the remaining DB class 60s in service: 66221/164/194/149/167/156/183/147/171/161 becoming 66651-660 respectively<ref>{{Cite web |last=RailUK-admin |date=2024-04-25 |title=‘Peak’ performance from DB Cargo UK’s regeared Class 66 locomotive |url=https://railuk.com/rolling-stock/peak-performance-from-db-cargo-uks-regeared-class-66-locomotive/ |access-date=2025-09-23 |website=Rail UK |language=en-US}}</ref>
|-
|4
|66687
66689
66693
66694<ref name=":4" />
|[[GB Railfreight]]
|
* 66687/689 regeared from 66777/779
* 66693/694 renumbered from 66793/794<ref name=":4">{{Cite web |date=2025-09-25 |title=GB Railfreight modifying 12 Class 66s |url=https://www.railadvent.co.uk/2025/06/gb-railfreight-modifying-12-class-66s-locos.html |access-date=2025-09-23 |website=RailAdvent |language=en-GB}}</ref>
|-
|'''Class 66/7'''<ref name=":3">{{cite magazine |last=Bayer |first=Gareth |title=GBRf closes in on 100 'Sheds' |magazine=[[Rail Express]] |date=17 August 2021}}</ref>
|99<ref name=":3" />
|66701–776, 66778, 66780-792, 66795-799<ref name="Rail Magazine">{{Cite magazine |url=https://www.railmagazine.com/news/network/gb-railfreight-targets-more-class-66s-from-overseas |title=GB Railfreight targets more Class 66s from overseas |first=Richard |last=Clinnick |date=25 January 2021 |magazine=RAIL |access-date=21 September 2021}}</ref><ref name=":4" />
|[[GB Railfreight]]
|Operates on coal, intermodal services and also engineering / departmental work for [[Transport for London]] and [[Network Rail]] on London Underground and National Rail lines.<ref name="s6" />
* 66734 was cut up on site after it was involved in a [[List of rail accidents in the United Kingdom|serious derailment]] at [[Loch Treig]]. However, a 'new' 66734 is now part of the GBRf fleet, with this locomotive replacing the original.<ref name=":3" />
* 66733–737 were formerly Direct Rail Services 66401–405.{{citation needed|date=April 2025}}
* 66738–741 were formerly Freightliner 66578–581.{{citation needed|date=April 2025}}
* 66742–746 were formerly Colas Rail 66841–845 and prior to that were numbered 66406–410 when with Direct Rail Services.{{citation needed|date=April 2025}}
* 66747–749 are a former Dutch fleet converted at the Midland Railway Centre.<ref name="Imports" />
* 66750 and 66751 are former [[Beacon Rail]] locos from mainland Europe. Converted at the EMD Longport.<ref name="Imports" />
* 66780–789 were formerly DB Cargo UK 66008, 016, 046, 058, 081, 132, 141, 184, 238 and 250.{{citation needed|date=April 2025}}
* 66790–792 were imported by Beacon Rail from Sweden. Converted at the EMD Longport.<ref>{{Cite magazine |title=First of three Swedish '66s' arrives for GB Railfreight |url=https://www.railmagazine.com/news/fleet/first-of-three-swedish-66s-arrives-for-gb-railfreight |first=Richard |last=Clinnick |access-date=3 June 2019 |magazine=RAIL |date=3 June 2019}}</ref>
* 66793–799 were imported by Beacon Rail from mainland Europe.<ref name="Rail Magazine" />
|-
|'''Class 66/8'''
|5
|66846–850
|[[Colas Rail]]
|Formerly Freightliner 66573–577.
|-
|'''Class 66/9'''
|7
|66951–957
|[[Freightliner Group|Freightliner]]
|A lower emission variant – fuel capacity reduced to compensate for the increased weight of other components.<ref name="s6"/>
|}

== Names ==
{{More citations needed section|date=December 2024}}
{| class="wikitable"
|+
!Number
!Name
!Operator
!Notes
|-
|66005
|''Maritime Intermodal One''
| rowspan="13" | DB Cargo UK
|<ref name="Intermodal">{{Cite web |title=Maritime's two new locomotives unveiled |url=https://www.maritimetransport.com/news-media/2019/04/02/test |website=Maritime Transport |date=2 April 2019 |access-date=8 January 2024}}</ref>
|-
|66035
|''Resourceful''
|Unveiled at the 2018 Severnside Open Day.<ref>{{Cite web |title=Severnside Open Day |url=https://www.modernrailways.com/article/severnside-open-day |date=22 March 2018 |access-date=9 January 2024}}</ref>
|-
|66047
|''Maritime Intermodal Two''
|<ref name="Intermodal"/>
|-
|66051
|''Maritime Intermodal Four''
|<ref name="Intermodal"/>
|-
|66090
|''Maritime Intermodal Six''
|<ref name="Intermodal"/>
|-
|66091
|''accurascale''
|Named after the model railway company at the DB Cargo UK Rail 200 Heritage Weekend at [[Midland Railway – Butterley]] in July 2025<ref>{{Cite web |date=2025-07-19 |title=DB Cargo Have Only Gone And Named A Loco After Us! |url=https://www.accurascale.com/blogs/news/db-cargo-have-only-gone-and-named-a-loco-after-us |access-date=2025-09-23 |website=Accurascale |language=en}}</ref>
|-
|66100
|''Armistice 100 (1918-2018)''
|<ref>{{Cite web |title=DB Cargo UK holds centenary Armistice Day locomotive naming |url=https://tanknewsinternational.com/db-cargo-uk-holds-centenary-armistice-day-locomotive-naming/ |website=Tank News International |date=19 November 2018 |access-date=9 January 2024}}</ref>
|-
|66142
|''Maritime Intermodal Three''
|<ref name="Intermodal"/>
|-
|66148
|''Maritime Intermodal Seven''
|<ref name="Intermodal"/>
|-
|66162
|''Maritime Intermodal Five''
|<ref name="Intermodal"/>
|-
|66175
|''[[Rail Riders]] Express''
|Named at Toton on 20 March 2020.<ref>{{Cite news |title=Rail Riders has a named locomotive once again! |url=https://www.railadvent.co.uk/2020/03/rail-riders-has-a-named-locomotive-once-again.html |publisher=Rail Advent |date=31 March 2020 |first=Michael |last=Holden |access-date=8 January 2024}}</ref>
|-
|66190
|''Martin House Children's Hospice''
|<ref>{{Cite web |title=Martin House name goes national after York station livery launch |url=https://www.yorkpress.co.uk/news/23568383.martin-house-name-goes-national-york-station-livery-launch/ |website=The Press |date=5 June 2023 |access-date=9 January 2024 |last=Greenwood |first=Darren}}</ref>
|-
|66200
|''The [[Jeremy Vine]] Show''
|Named at The [[Greatest Gathering]] in Derby after the famous [[BBC Radio 2]] presenter.<ref name="The Railway Magazine-2025">{{cite magazine |magazine=[[The Railway Magazine]]|date=September 2025|pages=4,42‒45 |url=https://www.railwaymagazine.co.uk/29448/september-2025-4/|title=A truly Great Gathering|volume=171|number=1494|editor-first=Paul|editor-last=Bickerdyke|publication-date=3 September 2025|issn=0033-8923|publisher=[[Kelsey Media]]}}</ref>
|-
|66307
|''[[Ipswich Town F.C.|Ipswich Town]]''
| rowspan="2" |GB Railfreight
|<ref name="Football">{{Cite news |url=https://www.railadvent.co.uk/2024/01/gb-railfreight-names-locomotive-after-ipswich-town-football-club.html |title=GB Railfreight names locomotive after Ipswich Town Football Club |date=15 January 2024 |work=Rail Advent |access-date=17 January 2024}}</ref>
|-
|66308
|''Signalman Willie Taylor''
|Named on 1 May 2024 at Carlisle Station to mark 40 years since he prevented a fatal rail collision.<ref>{{Cite news |date=2 May 2024 |title=Engine named after signalman who stopped Carlisle train disaster |url=https://www.bbc.com/news/articles/ceq3w919xd2o |access-date=20 May 2024 |work=BBC News}}</ref>
|-
|66413
|''Lest We Forget'' (denamed)
| rowspan="4" |Freightliner
|Name transferred to 66623 in 2023.<ref name="Naming Dec 2023">{{cite magazine |last1=Bendall |first1=Simon |last2=Clinnick |first2=Richard |last3=Coward |first3=Andy |title=Naming Update |department=Fleet Review |magazine=[[Railways Illustrated]] |issue=251 |date=January 2024 |page=22}}</ref>
|-
|66415
|''You Are Never Alone''
|<ref name="Smith"/>
|-
|66418
|''Patriot''
|Named in 2016 in honour of the 20,000 railwaymen that lost their lives in the [[World War I|First World War]].<ref name="auto">{{Cite magazine |title=New Basford Hall TMD Unveiled With Remembrance Naming |url=https://www.railexpress.co.uk/464/new-basford-hall-tmd-unveiled-with-remembrance-naming/ |magazine=Rail Express |date=22 December 2016 |access-date=4 January 2024}}</ref>
|-
|66419
|''Lionesses' Roar''
|Named in honour of the [[England women's national football team]].<ref>{{cite magazine|editor1-last=Coward|editor1-first=Andy |title=Naming update|magazine=Railways Illustrated |date=December 2022 |issue=238 |page=23 |publisher=Mortons Media Group |location=Horncastle |issn=1479-2230}}</ref>
|-
|66421
|''Gresty Bridge TMD''
| rowspan="8" |Direct Rail Services
|Previously carried by [[British Rail Class 20|20305]].<ref>{{Cite magazine |title=DRS open day raises more than £37,000 for charity |url=https://www.railmagazine.com/news/fleet/drs-open-day-raises-more-than-37-000-for-charity |magazine=Rail Magazine |date=27 July 2018 |access-date=9 January 2024}}</ref>
|-
|66422
|''Max Joule''
|Name unveiled at the 2022 Direct Rail Services Open Day.<ref>{{Cite news |title=Direct Rail Services open day to become biennial event |url=https://www.railadvent.co.uk/2023/03/direct-rail-services-open-day-to-become-biennial-event.html |work=RailAdvent |date=9 March 2023 |access-date=5 January 2024}}</ref>
|-
|66424
|''Driver Paul Scrivens''
|<ref>{{Cite web |title=Driver Paul Scrivens to debut on the North Norfolk Railway |url=https://www.edp24.co.uk/news/23572420.driver-paul-scrivens-debut-north-norfolk-railway/ |website=Eastern Daily Press |date=7 June 2023 |access-date=8 January 2024 |last=Anderson |first=Stuart}}</ref>
|-
|66425
|''Nigel J Kirchstein''
|<ref>{{cite magazine |last1=Bendall |first1=Simon |last2=Clinnick |first2=Richard |last3=Coward |first3=Andy |title=Naming Update |department=Fleet Review |magazine=[[Railways Illustrated]] |issue=236 |date=October 2022 |page=25}}</ref>
|-
|66428
|''Carlisle Eden Mind''
|<ref>{{Cite web |title=Direct Rail Services raise £10k for charities and local causes |url=https://www.directrailservices.com/direct-rail-services-raise-10k-for-charities-and-local-causes/ |website=Direct Rail Services |date=23 July 2019 |access-date=9 January 2024}}</ref>
|-
|66429
|''Charlie Brise''
|Named after a former DRS employee and TSSA union representative.<ref name="RailwaysIllustrated259"/>
|-
|66431
|''Kingmoor TMD''
|<ref name="RailwaysIllustrated259"/>
|-
|66433
|''Carlisle Power Signal Box''
|<ref>{{Cite web |date=17 June 2023 |title=Carlisle Power Signal Box locomotive marks 50 years of progress |url=https://www.newsandstar.co.uk/news/23589584.carlisle-power-signal-box-locomotive-marks-50-years-progress/ |access-date=9 January 2024 |website=News & Star}}</ref>
|-
|66501
|''Spirit of 65 – Celebrating 60 years of Freightliner''
| rowspan="16" |Freightliner
|Named in March 2025 to celebrate 60 years of Freightliner.<ref>{{Cite web |last=Karlsson |first=Oliver |date=25 August 2025 |title=Freightliner UK marks 60 Years with anniversary locomotives |website=Rail Color News |url=https://railcolornews.com/2025/08/25/free-locomotive-freightliner-uk-marks-60-years-with-anniversary-locomotives/ |access-date=25 August 2025}}</ref>
|-
|66503
|''The Railway Magazine''
|Named in 2004 with another plate ''(Celebrating 125 years 1897–2022)'' added below in 2022 to celebrate the magazine's anniversary.<ref>{{Cite web |last=Bestwick |first=Alex |date=9 August 2022 |title=Locomotive's rededication marks magazine milestone |website=The Railway Hub |url=https://www.therailwayhub.co.uk/64204/locomotives-rededication-marks-magazine-milestone/ |access-date=6 November 2022}}</ref>
|-
|66508
|''[[City of Doncaster]]''
|<ref name="Naming Dec 2023"/>
|-
|66509
|''Josiah's Wish''
|<ref>{{Cite web |title=I Wish To Be A Freight Train Driver |url=https://www.make-a-wish.org.uk/wishes/wish-stories/josiahs-wish-to-be-a-freight-train-driver/ |website=Make-A-Wish |access-date=9 January 2024}}</ref>
|-
|66522
|''East London Express'' (denamed)
|<ref name="Smith"/>
|-
|66526
|''Steve Dunn'' (denamed)
|Named after freight driver who was killed in the [[Selby rail crash]].<ref>{{Cite web |title=Loco named after driver |url=https://www.gazetteandherald.co.uk/news/7369770.loco-named-after-driver/ |date=1 October 2001 |website=Gezatte & Herald |access-date=8 January 2024}}</ref><ref name="Naming Dec 2023"/>
|-
|66528
|''Madge Elliot MBE (Borders Railway 2015)''
|Named after veteran rail campaigner [[Madge Elliot (activist)|Madge Elliot]].<ref>{{Cite news |date=3 June 2015 |title=Train is named after rail campaigner Madge Elliot |url=https://www.bbc.co.uk/news/uk-scotland-south-scotland-32995577 |access-date=7 January 2025 |work=BBC News}}</ref><ref name="Smith"/>
|-
|66533
|{{ubl|''Hanjin Express'' /|''Senator Express''}}
|Different name carried each side.<ref name="Smith">{{Cite book |last1=Smith |first1=Dave |title=Freightliner Locomotives |date=2020 |publisher=Amberley Publishing |isbn=978-1-4456-7370-7}}</ref>
|-
|66534
|''OOCL Express''
|Named on 21 November 2001 at Manchester.<ref>{{Cite web |url=https://www.oocl.com/eng/pressandmedia/pressreleases/2001/Pages/30nov01.aspx?site=uk&lang=eng |title=OOCL Express Naming Ceremony |date=30 November 2001 |website=OOCL |access-date=11 October 2021}}</ref>
|-
|66540
|''Ruby''
|<ref>{{Cite magazine |url=https://www.railwayherald.com/magazine/download/28 |format=pdf |magazine=Railway Herald |title=Freightliner celebrates 40 years |page=9 |date=27 January 2006 |access-date=9 January 2024}}</ref>
|-
|66552
|''Maltby Raider''
|Named in 2004 to celebrate Freightliner's achievement of 0.75&nbsp;million tonnes of coal from [[Maltby Main Colliery]].<ref>{{Cite web |title=Class 66 66552 'Maltby Raider' |url=https://www.wwrgallery.co.uk/products/class-66-66552-maltby-raider |website=Wings Wheels and Rail Gallery |access-date=9 January 2024}}</ref>
|-
|66587
|''As One We Can''
|Named and repainted in [[Ocean Network Express]]' (ONE) pink livery in 2019 to celebrate Freightliner's partnership with ONE.<ref>{{Cite web |title=G&W and ONE celebrate new contract with loco naming |url=https://www.gwrr.co.uk/news/gw-and-one-celebrate-new-contract-with-loco-naming/ |website=Genesee & Wyoming Railroad |access-date=9 January 2024}}</ref>
|-
|66594
|''NYK Spirit of Kyoto''
|<ref name="Smith"/>
|-
|66614
|''Poppy''
|Named in 2016 in honour of the 20,000 railwaymen that lost their lives in the [[World War I|First World War]]<ref name="auto"/>
|-
|66619
|''Derek W Johnson MBE''
|Named after Chairman of Johnson Stevens Agencies Ltd.<ref>{{Cite web |title=Class 66 66619 'Derek W. Johnson MBE' |url=https://www.wwrgallery.co.uk/products/class-66-66619-derek-w-johnson-mbe |website=Wings Wheels and Rail Gallery |access-date=9 January 2024}}</ref>
|-
|66623
|''Lest We Forget''
|Name transferred from 66413 in 2023.<ref name="Naming Dec 2023"/>
|-
|66701
|''Whitemoor'' (denamed)
| rowspan="71" |GB Railfreight
|Named on 23 May 2004 at Whitemoor depot.<ref>{{Cite web |url=https://www.networkrailmediacentre.co.uk/news/celebrate-a-railway-revival-whitemoor-community-open-day |title=Celebrate a Railway Revival – Whitemoor Community Open Day |date=1 April 2004 |website=Network Rail Media Centre |access-date=11 October 2021}}</ref>
|-
|66705
|''[[Golden Jubilee of Elizabeth II|Golden Jubilee]]''
|Additionally carried a [[Union Jack]] in its livery until 2016.<ref>{{Cite web |url=https://www.kernowmodelrailcentre.com/p/87663/R30334-*-Hornby-GBRf-Class-66-Diesel-66-705-Golden-Jubilee |title=R30334: Hornby GBRf Class 66 Diesel 66 705 Golden Jubilee |website=Kernow Model Rail Centre |access-date=9 January 2024}}</ref>
|-
|66706
|''[[Nene Valley Railway|Nene Valley]]''
|<ref>{{Cite web |url=https://www.sixbellsjunction.co.uk/galas/030426.htm |title=Nene Valley Railway "Nene Corridor" Project Launch |website=Six Bells Junction |date=26 April 2003 |access-date=9 January 2024}}</ref>
|-
|66708
|''Glory to Ukraine''
|Named on 6 April 2022 and partially painted in the colours of the [[Flag of Ukraine]].<ref>{{Cite news |last=Holden |first=Michael |date=6 April 2022 |title=GB Railfreight unveils new livery for Class 66 locomotive in support of Ukraine |url=https://www.railadvent.co.uk/2022/04/gb-railfreight-unveils-new-livery-for-class-66-locomotive-in-support-of-ukraine.html |access-date=4 May 2022 |publisher=RailAdvent}}</ref>
|-
|66709
|''Sorrento''
|Named and repainted in [[Mediterranean Shipping Company]]'s corporate colours in 2012 to celebrate the 10-year partnership anniversary with GB Railfreight.<ref>{{Cite magazine |date=26 April 2012 |title=New look for GBRF Class 66 |url=https://www.railwayherald.com/uknews/new_look_for_gbrf_class_66 |access-date=9 January 2024 |magazine=Railway Herald}}</ref>
|-
|66710
|''[[Karen Harrison]]''
|Named at the [[Greatest Gathering]] after the first woman in Britain to be appointed as a train driver.<ref name="The Railway Magazine-2025"/>
|-
|66711
|''Sence''
|<ref>{{Cite web |date=9 July 2015 |title=Bardon Hill locomotive named 'Sence' |website=AggNet |url=https://www.agg-net.com/news/bardon-hill-locomotive-named-sence |access-date=9 January 2024}}</ref>
|-
|66713
|''The Forest City''
|Named in reference to the Class 66's birthplace in London, Ontario.<ref>{{Cite web |title=R30020 GBRf, Class 66, Co-Co, 66713 'Forest City' |website=Hornby Model Railways |url=https://uk.hornby.com/products/gbrf-class-66-co-co-66713-forest-city-era-11-r30020 |access-date=17 January 2024}}</ref>{{better source needed |date=April 2025}}
|-
|66714
|''[[Cromer Lifeboat Station|Cromer Lifeboat]]''
|<ref>{{Cite web |title=TT3016M GBRf, Class 66, Co-Co, 66714 'Cromer Lifeboat' |website=Arnold Models |url=https://uk.arnoldmodel.com/products/gbrf-class-66-co-co-66714-cromer-lifeboat-era-11-tt3016m |access-date=17 January 2024}}</ref>{{better source needed |date=April 2025}}
|-
|66715
|''Valour''
|<ref>{{Cite web |title=Valour-Railway Locomotive No 66715 |website=Imperial Wharf Museum |url=https://www.iwm.org.uk/memorials/item/memorial/60964 |access-date=17 January 2024}}</ref>{{better source needed |date=April 2025}}
|-
|66716
|''Locomotive & Carriage Institution 1911-2011''
|Named on the Nene Valley Railway.<ref>{{Cite web |title=Centenary Locomotive Naming |website=The Locomotive & Carriage Institution |url=https://www.lococarriage.org.uk/66716naming.html |access-date=17 January 2024}}</ref>
|-
|66718
|''Peter, Lord Hendy of Richmond Hill of Imber in the County of Wiltshire''
|Originally named ''Sir [[Peter Hendy]] CBE'' in 2013, it was repainted in a black livery with the current name adopted in May 2023.<ref>{{Cite news |url=https://www.railadvent.co.uk/2023/05/gb-railfreight-honors-lord-peter-hendy-with-loco-renaming-ceremony.html |title=GB Railfreight honors Lord Peter Hendy with loco renaming ceremony |work=RailAdvent |date=28 May 2023 |access-date=17 January 2024}}</ref>
|-
|66719
|''[[Michael Portillo]]''
|Named at the [[Greatest Gathering]] after the British journalist and broadcaster that hosted railway documentaries such as ''[[Great British Railway Journeys]]'' and ''[[Great Continental Railway Journeys]]''.<ref name="The Railway Magazine-2025"/>
|-
|66720
|''Wascosa''
|<ref>{{cite magazine |title=GB Railfreight celebrates Wascosa and Network Rail partnership |department=News |magazine=[[Railways Illustrated]] |issue=235 |date=October 2022 |page=13}}</ref>
|-
|66721
|''[[Harry Beck]]''
|Named after the designer of London Underground's [[Tube map]].<ref>{{cite web |title=R30021 GBRf, Class 66, Co-Co, 66721 'Harry Beck' - Era 11 |url=https://uk.hornby.com/products/gbrf-class-66-co-co-66721-harry-beck-era-11-r30021? |publisher=Hornby Hobbies |access-date=23 May 2023 |quote=On 26 January 2007, 66721 was named 'Harry Beck', by John Smith, MD of GB Railfreight...}}</ref>
|-
|66723
|''ZA723 [[Boeing CH-47 Chinook|Chinook]]''
|Named after the helicopter in 2008.<ref>{{Cite web |url=https://railnews.mobi/news/freight/2008/09/30-chinook-gbrf.html |title=Chinook takes to the air to celebrate loco naming |website=Railnews |date=30 September 2008 |access-date=17 January 2024 |quote=to unveil the striking squadron-badged plaque on loco 66723...}}</ref>
|-
|66725
|''[[Sunderland A.F.C.|Sunderland]]''
|<ref name="Football" />
|-
|66726
|''[[Sheffield Wednesday F.C.|Sheffield Wednesday]]''
|<ref>{{Cite web |url=https://www.cravenherald.co.uk/news/19557376.video-66726-sheffield-wednesday-passes-damaged-train-settle-carlisle-line/ |title=VIDEO: 66726 Sheffield Wednesday passes damaged train on Settle-Carlisle line |website=Craven Herald & Pioneer |date=3 September 2021 |access-date=17 January 2024}}</ref>
|-
|66728
|''Institution of Railway Operators''
|<ref>{{Cite web |url=https://railnews.mobi/news/2008/04/28-gbrf-new-depot.html |website=Railnews |title=Depot creates new jobs for rail town |date=28 April 2008 |access-date=17 January 2024}}</ref>
|-
|66729
|''[[Derby County F.C.|Derby County]]''
|<ref>{{Cite web |date=17 April 2010 |title=First GBRf names loco 'Derby County' |url=https://www.dcfc.co.uk/page/NewsDetail/0,,10270~2025373,00.html |archive-url=https://web.archive.org/web/20100418043846/https://www.dcfc.co.uk/page/NewsDetail/0,,10270~2025373,00.html |archive-date=18 April 2010 |access-date=17 January 2024 |website=Derby County F.C.}}</ref>
|-
|66731
|''Capt. Tom Moore – A True British Inspiration''
|Named in April 2020 in honour of the 100th birthday of [[Captain Tom Moore]].<ref name=":0">{{Cite magazine |title=GB Railfreight thanks Captain Tom Moore for his NHS fundraising with locomotive naming |url=https://www.railmagazine.com/news/network/gb-railfreight-thanks-captain-tom-moore-for-his-nhs-fundraising-with-locomotive-naming |access-date=30 April 2020 |magazine=Rail Magazine}}</ref>
|-
|66733
|''Cambridge PSB''
|<ref>{{Cite web |title=GB Railfreight: Facebook |url=https://www.facebook.com/GBRailfreight/posts/today-66733-was-named-cambridge-psb-at-cambridge-station-by-gbrf-md-john-smith-w/697707470312196/ |date=10 September 2014 |access-date=17 January 2024 |website=Facebook |quote=Today, 66733 was named 'Cambridge PSB' at Cambridge Station...}}</ref>{{better source needed |date=April 2025}}
|-
|66734
|''Platinum Jubilee''
|Repainted in purple livery in 2022 and named to commemorate the [[Platinum Jubilee of Elizabeth II]].<ref>{{Cite magazine |title=GBRF Marks Platinum Jubilee with special livery |url=https://www.railwayherald.com/uknews/gbrf-marks-platinum-jubilee-with-special-livery |date=1 June 2022 |access-date=17 January 2024 |magazine=Railway Herald}}</ref>
|-
|66736
|''[[Wolverhampton Wanderers F.C.|Wolverhampton Wanderers]]''
|<ref>{{Cite web |url=http://www.hondawanderer.com/Wolverhampton_Wanderers_Nameplate_2016.htm |title=66376 Wolverhampton Wanderers Nameplate |access-date=17 January 2024 |website=Martin Loader's Railway Photography}}</ref>
|-
|66738
|''[[Huddersfield Town A.F.C.|Huddersfield Town]]''
|<ref name="Football"/>
|-
|66739
|''[[Bluebell Railway]]''
|<ref>{{Cite web |url=https://www.heritagerailway.co.uk/11001/bluebell-railway-celebrates-six-decades-of-worlds-most-popular-line/ |title=Bluebell Railway Celebrates Six Decades Of World's Most Popular Line |website=Heritage Railway |date=28 July 2020 |author=Sam Hewitt}}</ref>
|-
|66740
|''Sarah''
|Named after Sarah Whurr in 2014, working for GBRF's finance team.<ref>{{Cite web |title=GB Railfreight: Facebook |url=https://www.facebook.com/GBRailfreight/posts/66740-is-the-latest-of-our-locos-to-be-named-after-one-of-our-office-girls-in-a-/681188878630722/ |date=14 August 2014 |access-date=17 January 2024 |website=Facebook |quote=66740 is the latest of our locos to be named after one of our office girls...}}</ref>{{better source needed |date=April 2025}}
|-
|66741
|''[[Swanage Railway]]''
|<ref>{{Cite web |title=GB Railfreight: Facebook |url=https://www.facebook.com/GBRailfreight/posts/weve-just-named-66741-swanage-railway-after-a-long-running-friendship-with-the-d/821296234619985/ |date=7 May 2015 |access-date=17 January 2024 |website=Facebook |quote=We've just named 66741 'Swanage Railway'...}}</ref>{{better source needed |date=April 2025}}
|-
|66742
|''[[Port of Immingham]] Centenary 1912-2012''
|Unveiled by [[Michael Portillo]].<ref>{{Cite web |url=https://www.europorte.com/content/uploads/2020/04/120430-GBRf-Port-OfImmingham-Locomotive-Naming.pdf |title=GB Railfreight helps the Port of Immingham celebrate 100 years of operation with locomotive naming |website=Europorte |date=30 April 2012 |access-date=17 January 2024}}</ref>
|-
|66744
|''[[Crossrail]]''
|<ref>{{Cite web |url=https://www.kentrail.org.uk/northfleet_Crossrail_2.htm |title=Northfleet: Crossrail |website=Kent Rail |quote=No. 66744 was formally named ''Crossrail'' during a ceremony at the site... |access-date=17 January 2024}}</ref>
|-
|66747
|''Made in Sheffield''
|<ref>{{Cite news |url=https://www.railadvent.co.uk/2019/07/gbrf-name-class-66-locomotive-made-in-sheffield.html |title=GBRf name class 66 locomotive 'Made in Sheffield' |publisher=RailAdvent |author=Michael Holden |date=11 July 2019 |access-date=17 January 2024}}</ref>
|-
|66748
|''[[St Michael's Mount]]''
| Named and repainted in the "[[Belmond Britannic Explorer]]" luxury livery and named in honor of the famous [[tidal island]] landmark in [[Cornwall]].<ref>{{Cite web |date=4 August 2025 |title=Railway Herald |url=https://www.railwayherald.com/imagingcentre/view/704349/LC |access-date=4 August 2025 |website=Railway Herald}}</ref> 
|-
|66749
|''Christopher Hopcroft MBE''
|<ref>{{Cite web |title=GBRf employee wins Lifetime Achievement Award at the end of a 60-year career |url=https://www.gbrailfreight.com/gbrf-employee-wins-lifetime-achievement-award-at-the-end-of-a-60-year-career/ |website=GB Railfreight  |date=28 February 2020}}</ref>
|-
|66750
|''Bristol Panel Signal Box''
|<ref name="White">{{Cite news |last1=White |first1=Cameron |title=Rare GBRf European class 66 locomotive convoy |url=https://www.railadvent.co.uk/2020/06/watch-rare-gbrf-european-class-66-locomotive-convoy.html|publisher=RailAdvent |access-date=13 June 2020 |date=13 June 2020}}</ref>
|-
|66751
|''Inspiration Delivered''
|<ref>{{Cite web |url=https://presse.getlinkgroup.com/actualites/gb-railfreight-celebrates-relationship-with-hitachi-rail-europe-by-naming-class-66-locomotive-version-anglaise-2bbc-f6b8a.html |title=GB Railfreight celebrates relationship with Hitachi Rail Europe by naming Class 66 locomotive |website=GetLink |date=27 May 2015 |access-date=17 January 2024}}</ref>
|-
|66752
|''The Hoosier State''
|A nickname for the American state of [[Indiana]].<ref name="ReferenceA"/>
|-
|66753
|''EMD Roberts Road''
|<ref>{{Cite magazine |url=https://www.railmagazine.com/news/fleet/gb-railfreight-names-class-66-at-roberts-road |title=GB Railfreight names Class 66 at Roberts Road |magazine=Rail Magazine |date=9 December 2014 |access-date=17 January 2024}}</ref>
|-
|66754
|''[[Northampton Saints]]''
|Named at [[Wellingborough Aggregates Terminal]] on 22 April 2015.<ref>{{Cite web |title=GB Railfreight celebrates rugby success with locomotive naming at Northampton... |url=https://press.getlinkgroup.com/news/gb-railfreight-celebrates-rugby-success-with-locomotive-naming-at-northampton-saints-8fe5-0791e.html |access-date=14 April 2022 |website=press.getlinkgroup.com}}</ref>
|-
|66755
|''Tony Berkeley OBE''
|<ref>{{Cite magazine |url=https://www.modernrailways.com/article/his-lordships-locomotive |title=His Lordship's Locomotive |date=26 July 2018 |magazine=Modern Railways |access-date=17 January 2024}}</ref>
|-
|66756
|''[[Royal Corps of Signals]]''
|<ref>{{Cite magazine |url=https://www.railwaymagazine.co.uk/2933/gb-railfreight-cements-links-with-armed-forces |title=GB Railfreight Cements Links With Armed Forces|magazine=The Railway Magazine|date= 16 August 2017 |author=Sam Hewitt |access-date=17 January 2024}}</ref>
|-
|66757
|''[[West Somerset Railway]]''
|<ref>{{Cite news |url=https://www.itv.com/news/westcountry/update/2015-09-28/40-years-since-the-re-opening-of-west-somerset-railway/ |title=40 years since the re-opening of West Somerset Railway |date=28 September 2016 |access-date=17 January 2024 |work=ITV News}}</ref>
|-
|66758
|''The Pavior''
|Named in honour of the [[Worshipful Company of Paviors]].<ref>{{Cite web |url=https://www.gbrailfreight.com/gb-railfreight-and-the-worshipful-company-of-paviors-christen-the-pavior/ |title=GB Railfreight and the Worshipful Company of Paviors christen 'The Pavior' |date=14 September 2018 |access-date=17 January 2024 |website=GB Railfreight}}</ref>
|-
|66763
|''[[Severn Valley Railway]]''
|<ref>{{Cite web |url=https://www.kidderminstershuttle.co.uk/news/14507683.severn-valley-railway-unveils-800000-kidderminster-diesel-depot/ |title=Severn Valley Railway unveils £800,000 Kidderminster Diesel Depot |date=21 May 2016 |author=Tom Davis |access-date=17 January 2024 |website=The Shuttle |quote=A GB Railfreight loco 66763 was also named 'Severn Valley Railway’ at the official launch.}}</ref>
|-
|66764
|''Major John Poyntz Engineer and Railwayman''
|Named on 16 June 2021 in honour of last RE Inspector of Railways.<ref name=":1">{{Cite news |last=White |first=Cameron |date=18 June 2021 |title=HM Railway Inspector has GBRF Class 66 locomotive dedicated in his name |url=https://www.railadvent.co.uk/2021/06/hm-railway-inspector-has-gbrf-class-66-locomotive-dedicated-in-his-name.html |access-date=20 June 2021 |publisher=RailAdvent}}</ref>
|-
|66765
|''Julie Carn''
|<ref name="Naming 2 August">{{cite magazine |last1=Bendall |first1=Simon |last2=Clinnick |first2=Richard |last3=Coward |first3=Andy |title=Naming Update |department=Fleet Review |magazine=[[Railways Illustrated]] |issue=235 |date=September 2022 |page=23}}</ref>
|-
|66766
|''Gail Richardson''
|<ref name="Naming 2 August"/>
|-
|66767
|''King’s Cross PSB 1971–2021''
|Named on 25 April 2021 at Kings Cross station.<ref>{{Cite web |title=GBRf name new locomotive as King's Cross project reaches final stage |url=https://www.gbrailfreight.com/gbrf-name-new-locomotive-as-kings-cross-project-reaches-final-stage/ |website=GB Railfreight |date=30 April 2021 |access-date=11 October 2021}}</ref>
|-
|66769
|''League Managers Association''
|Carries the [[Prostate Cancer UK]] logo. Named in August 2021.<ref>{{Cite news |last=White |first=Cameron |date=16 August 2021 |title=Class 66 locomotive named in honour of partnership between GB Railfreight, Prostate Cancer UK and the League Managers Association |url=https://www.railadvent.co.uk/2021/08/class-66-locomotive-named-in-honour-of-partnership-between-gb-railfreight-prostate-cancer-uk-and-the-league-managers-association.html |url-status=live |access-date=16 August 2021 |publisher=RailAdvent |archive-url=https://web.archive.org/web/20210816081326/https://www.railadvent.co.uk/2021/08/class-66-locomotive-named-in-honour-of-partnership-between-gb-railfreight-prostate-cancer-uk-and-the-league-managers-association.html |archive-date=16 August 2021}}</ref>
|-
|66770
|''Darius Cheskin''
|<ref name="RailwaysIllustrated259">{{cite magazine |last1=Bendall |first1=Simon |last2=Clinnick |first2=Richard |last3=Coward |first3=Andy |title=Naming Update |department=Fleet Review |magazine=[[Railways Illustrated]] |issue=259 |date=September 2024 |page=25}}</ref>
|-
|66771
|''Amanda''
|Named in a ceremony at [[Cleethorpes]] station in August 2019 in honour of staff member Amanda Wilson.<ref name="maria">{{Cite web |url=https://www.gbrailfreight.com/gbrf-honour-long-serving-employees-with-loco-naming/ |title=GBRf honour long serving employees with loco naming |date=16 August 2019 |website=GBRf}}</ref>
|-
|66772
|''Maria''
|Named in a ceremony at [[Cleethorpes]] station in August 2019 in honour of staff member Maria Dennison.<ref name="maria"/>
|-
|66773
|''Pride of GB Railfreight''
|Name chosen by [[Matthew Parris]] in recognition of LGBT+ employees across the rail industry.<ref>{{Cite web |url=https://www.gbrailfreight.com/gb-railfreight-unveil-new-brighton-pride-rainbow-locomotive/ |title=GB Railfreight Unveil New Brighton Pride Rainbow Locomotive |date=2 August 2019 |website=GB Railfreight |access-date=2 August 2019}}</ref>
|-
|66775
|{{HMS|Argyll|F231|6}}
|Named in a ceremony at [[HMNB Devonport]] in July 2017.<ref>{{Cite web |url=https://www.justplymouth.com/royal-navy-warship-hms-argyll/ |title=Royal Navy Warship HMS Argyll honoured by train company |date=12 July 2017 |website=justplymouth.com}}</ref>
|-
|66778
|''Cambois Depot 25 Years''
|<ref>{{cite magazine |editor1-last=Harris|editor1-first=Nigel |title=News in brief |magazine=Rail Magazine |date=12 August 2020 |issue=911 |page=28 |publisher=Bauer Consumer Media |location=Peterborough |issn=0953-4563}}</ref>
|-
|66779
|''Evening Star''
|Last class 66 to be built. Gifted to the NRM.<ref>{{Cite web |author1=Plongf4 |title=Our Trains |url=https://www.gbrailfreight.com/about/our-trains/ |website=GB Railfreight |access-date=11 October 2021}}</ref>
|-
|66780
|''The [[Cemex]] Express''
|<ref>{{Cite web |url=https://www.cemex.co.uk/-/cemex-and-gb-railfreight-launch-new-branded-locomotive-at-official-naming-ceremony |title=CEMEX and GB Railfreight presented the new CEMEX-liveried locomotive at a dedicated naming ceremony held at Dove Holes Quarry, Buxton |date=14 June 2019 |access-date=17 January 2024 |website=Cemex}}</ref><ref>{{Cite web |url=https://www.railadvent.co.uk/2019/06/gbrf-and-cemex-launch-new-branded-class-66-locomotive.html |title=GBRf and Cemex launch new branded Class 66 locomotive |date=20 June 2019 |author=Emma Holden |access-date=17 January 2024 |website=Cemex}}</ref>
|-
|66781
|{{numbered list|''Darius Cheskin''<ref name="RailwaysIllustrated259"/>|''Ratcliffe Power Station''}}
|{{numbered list|Previously carried by 66778.<ref>{{cite magazine |last1=Bendall |first1=Simon |last2=Coward |first2=Andy |title=Naming Update |department=Fleet Review |magazine=[[Railways Illustrated]] |issue=234 |date=August 2022 |page=21}}</ref>|Named 28 June 2024, to commemorate the last coal train to Ratcliffe-on-Soar.<ref>{{cite news |last1=Hare |first1=Simon |title=Power station's last coal delivery arrives by rail |url=https://www.bbc.co.uk/news/articles/ckkg0wl7dkro |publisher=BBC News |date=30 June 2024 |access-date=30 June 2024}}</ref>}}
|-
|66783
|''The Flying Dustman''
|Named in March 2018 to mark the partnership between Biffa and GB Railfreight.<ref name=":2">{{Cite web |last= |date=28 March 2018 |title=GB Railfreight and Biffa christen "The Flying Dustman" |url=https://www.gbrailfreight.com/gb-railfreight-and-biffa-christen-the-flying-dustman/ |access-date=4 November 2022 |website=GBRF}}</ref>
|-
|66784
|''[[Keighley & Worth Valley Railway]]''
|<ref>{{Cite magazine |title=GBRF marks KWVR's 50th anniversary |date=18 July 2018 |magazine=Rail Magazine}}</ref>{{page needed|date=August 2024}}
|-
|66785
|''John Ellis''
|<ref>{{Cite web |url=https://www.gbrailfreight.com/gb-railfreight-honours-john-ellis-with-a-surprise-locomotive-naming/ |title=GB Railfreight honours John Ellis with a surprise locomotive naming |date=21 July 2023 |access-date=17 January 2024 |website=GBRailfreight}}</ref>
|-
|66786
|''[[Cambridge University Railway Club]]''
|<ref>{{Cite web |url=https://curc.org.uk/gbrf-66786/ |title=GB railfreight 66786 'Cambridge University Railway Club' |access-date=17 January 2024 |website=Cambridge University Railway Club}}</ref>
|-
|66787
|''Three Bridges ASC''
|<ref>{{Cite web |url=https://www.linkedin.com/posts/gb-railfreight_our-director-for-business-development-tim-activity-7080861347634147328-kHD5/ |date=1 July 2023 |access-date=17 January 2024 |website=LinkedIn |title=LinkedIn GB Railfreight}}</ref>{{better source needed |date=April 2025}}
|-
|66789
|''British Rail 1948-1997''
|Named to commemorate the 70th anniversary of [[British Rail]] and painted in BR 'large logo' blue.<ref>{{cite tweet |user=GBRailfreight |number=968518446802788352 |title=GBRf are proud to unveil our latest class 66 newly renamed 'British Rail 1948-1997'. The loco marks the 70th anniversary of British Railways and is currently undergoing a number of modifications to bring to GBRf 66/7 standard and reliability}}</ref>{{better source needed |date=April 2025}}
|-
|66790
|''Louise''
|<ref name="Ladies Naming">{{Cite web |url=https://www.gbrailfreight.com/locomotive-66790-is-named-after-louise-garwood-and-66798-after-justine-langton/ |title=GB Railfreight hosts its 2023 ladies' naming ceremony |date=22 August 2023 |website=GB Railfreight |access-date=17 January 2024}}</ref>
|-
|66791
|''Settle & Carlisle 150''
| To celebrate 150 years of freight on the [[Settle–Carlisle line|Settle to Carlisle line]]<ref>{{Cite web|url=https://www.railmagazine.com/news/reopened-horton-quarry-rail-link-marks-150-years-of-freight-on-settle-carlisle-line|title=Reopened Horton Quarry rail link marks 150 years of freight on Settle-Carlisle line|website=railmagazine.com|language=en|access-date=22 August 2025}}</ref>
|-
|66792
|''Collaboration''
|<ref>{{cite magazine |last1=Bendall |first1=Simon |last2=Coward |first2=Andy |title=Naming Update |department=Fleet Review |magazine=[[Railways Illustrated]] |issue=233 |date=July 2022 |page=23}}</ref>
|-
|66794
|''Steve Hannam''
|<ref>{{cite tweet |user=GBRailfreight |number=1398274579022368768 |title=We're proud to unveil our latest named Class 66 'Steve Hannam'. Specially painted in BR Railfreight triple grey livery, the locomotive celebrates the rail career of Steve Hannam who played a vital role in maintaining Class 59 & 66 locomotives in the UK.}}</ref>{{better source needed |date=April 2025}}
|-
|66795
|''Bescot LDC''
|Named in October 2021 following the completion of an upgrade to the Bescot Local Distribution Centre.<ref>{{Cite web |title=GB Railfreight name new locomotive to celebrate major Bescot LDC upgrade |url=https://www.gbrailfreight.com/gb-railfreight-name-new-locomotive-to-celebrate-major-bescot-ldc-upgrade/ |date=8 October 2021 |website=GB Railfreight}}</ref><ref>{{Cite web |last=Holden |first=Alan |date=9 October 2021 |title=GB Railfreight names Class 66 locomotive to celebrate Bescot LDC upgrades |url=https://www.railadvent.co.uk/2021/10/gb-railfreight-names-class-66-locomotive-to-celebrate-bescot-ldc-upgrades.html |url-status=live |access-date=10 October 2021 |website=RailAdvent|archive-url=https://web.archive.org/web/20211009131120/https://www.railadvent.co.uk/2021/10/gb-railfreight-names-class-66-locomotive-to-celebrate-bescot-ldc-upgrades.html |archive-date=9 October 2021}}</ref>
|-
|66796
|''The Green Progressor''
|Named in September 2021.<ref>{{Cite news |last=White |first=Cameron |date=18 September 2021 |title=HS2 fan names Class 66 locomotive – with unexpected surprise |url=https://www.railadvent.co.uk/2021/09/hs2-fan-names-class-66-locomotive-with-unexpected-surprise.html |url-status=live |access-date=20 September 2021 |publisher=RailAdvent |archive-url=https://web.archive.org/web/20210919212841/https://www.railadvent.co.uk/2021/09/hs2-fan-names-class-66-locomotive-with-unexpected-surprise.html |archive-date=19 September 2021}}</ref>
|-
|66798
|''Justine''
|<ref name="Ladies Naming"/>
|-
|66799
|''Modern Railways Diamond Jubilee''
|<ref>{{Cite news |date=28 September 2022 |title=Class 43 and Class 66 locomotive named at Kidderminster station on the Severn Valley Railway |url=https://www.railadvent.co.uk/2022/09/class-43-and-class-66-locomotive-named-at-kidderminster-station-on-the-severn-valley-railway.html |access-date=17 January 2024 |work=RailAdvent}}</ref>
|-
|66847
|''Terry Baker''
| rowspan="3" |Freightliner
|<ref>{{cite tweet |user=GBRailfreight |number=1121702459766968320 |title=Monday the 22nd April marked the proud unveiling of Colas Rail Ltd.'s newly named loco class 66847 "Terry Baker". The Loco was named in memory of the late Terry Baker. A devoted Crystal Palace fan and loved colleague.}}</ref>{{better source needed |date=April 2025}}
|-
|66849
|''Wylam Dilly''
|<ref>{{Cite web |url=https://www.wwrgallery.co.uk/products/class-66-66849-wylam-dilly |title=Class 66 66849 'Wylam Dilly' |website=Wings Wings And Rail Gallery |access-date=17 January 2024}}</ref>
|-
|66850
|''David Maidment OBE''
|<ref>{{Cite web |url=https://uk.arnoldmodel.com/products/colas-rail-class-66-co-co-66850-david-maidment-obe-era-11-tt3019m |title=TT3019M Colas Rail, Class 66, Co-Co, 66850, 'David Maidment OBE' |access-date=17 January 2024 |website=Arnold Models}}</ref>{{better source needed |date=April 2025}}
|-
|66957
|''Stephenson Locomotive Society 1909–2009''
|GB Railfreight
|Named at [[Shildon]], on 30 March 2009, as part of the [[Stephenson Locomotive Society]]'s 100th anniversary celebrations.<ref>{{Cite web |title=Locomotives Associated with the SLS |url=http://www.stephensonloco.org.uk/loco_assoc.htm#66957 |website=Stephenson Locomotive Society |access-date=22 July 2019 |archive-date=5 December 2019 |archive-url=https://web.archive.org/web/20191205042245/http://www.stephensonloco.org.uk/loco_assoc.htm#66957 |url-status=dead}}</ref>
|}

== Models ==
In 2006, [[Hornby Railways]] launched its first version of the BR Class 66 in [[OO gauge]] range in a variety of liveries.<ref>{{Cite web |url=http://www.hornbyguide.com/class_details.asp?classid=150 |title=Hornby BR Class 66 |work=Hornby Railways Collector Guide |access-date=1 February 2020}}</ref>

In 2008, [[Bachmann Branchline|Bachmann]] produced a [[OO gauge]] model of 66411 ''Eddie the Engine'' in DRS Stobart livery.<ref>{{cite magazine |title=Bachmann releases Eddie the Engine in Stobart livery |magazine=Hornby Magazine |first=Mike |last=Wild |pages=8 |issue=7 |date=January 2008 |location=Hersham |publisher=Ian Allan Publishing |issn=1753-2469 |oclc=226087101}}</ref> In 2013, following on from Bachmann's OO gauge EWS and Freightliner liveried models of the Class 66, Bachmann introduced a [[Digital Command Control|DCC-ready]] version of 66846 in Colas Rail livery.<ref>{{cite magazine |title=Bachmann 'Shed' now adorned in Colas Rail livery |magazine=British Railway Modelling |pages=94 |volume=20 |issue=12 |date=March 2013 |location=Bourne |publisher=Warners Group Publications |issn=0968-0764 |oclc=1135061879}}</ref>

Since 2019, Hattons have offered a variety of paint schemes for their class 66 model in OO gauge.<ref>{{Cite web |url=https://www.hattons.co.uk/directory/versiondetails?id=1#models |title=Hatton BR Class 66 |work=Hatton's model directory |access-date=19 May 2022}}</ref>

Both [[Graham Farish]]<ref>{{cite magazine |title=Farish '66/9' completes the set |magazine=[[Model Rail]] |pages=66 |issue=113 |date=January 2008 |location=Peterborough |publisher=EMAP Active |issn=1369-5118 |oclc=173324502}}</ref> and [[Dapol]] produce models of the Class 66 for [[British N gauge]].<ref>{{cite magazine |title=New Class 66 liveries from Dapol |magazine=Hornby Magazine |first=Mike |last=Wild |pages=81 |issue=7 |date=January 2008 |location=Hersham |publisher=Ian Allan Publishing |issn=1753-2469 |oclc=226087101}}</ref>

In 2008, Aristocraft introduced a [[G scale]] version of the Class 66 in [[GB Railfreight]] livery<ref>{{cite magazine |title=Garden Shed |first=Ben |last=Jones |magazine=[[Model Rail]] |pages=8–9 |issue=113 |date=January 2008 |location=Peterborough |publisher=EMAP Active |issn=1369-5118 |oclc=173324502}}</ref><ref>{{cite magazine |title=Aristocraft 'G' scale 66 lands |magazine=Hornby Magazine |first=Mike |last=Wild |pages=76–77 |issue=7 |date=January 2008 |location=Hersham |publisher=Ian Allan Publishing |issn=1753-2469 |oclc=226087101}}</ref> and in [[Freightliner Group|Freightliner]] livery.<ref>{{cite magazine |title=Radio-controlled Aristocraft 'Fred' |first=Brian |last=Jones |magazine=British Railway Modelling |pages=32–37 |volume=16 |issue=3 |date=June 2008 |location=Bourne |publisher=Warners Group Publications |issn=0968-0764 |oclc=1135061879}}</ref>

== Notes ==
{{notelist}}

== References ==
{{Reflist}}

=== Sources ===
*{{Cite Q|Q105958847|ref={{sfnref|Fox|Hall|Pritchard|2004}}}}
*{{Cite Q|Q105958849|ref={{sfnref|Fox|Hall|Pritchard|2008}}}}
* {{Cite magazine |last=Jones |first=Ben |title=Freight without Frontiers: 20 years of Class 66 |magazine=The Railway Magazine |date=July 2018 |pages=23–29}}

== Further reading ==
*{{Cite Q|Q105958850|first=Ross|last=Taylor |publisher=Amberley Publishing}}
*{{Cite magazine |title=That's two down – only another 248 Class 66s to go...! |magazine=[[RAIL (magazine)|RAIL]] |issue=327 |publisher=EMAP Apex Publications|date=25 March – 7 April 1998|page=17|issn=0953-4563|oclc=49953699}}
*{{Cite magazine |title=EWS takes delivery of its first American-design Class 66s |magazine=[[RAIL (magazine)|RAIL]] |issue=328 |publisher=EMAP Apex Publications|date=8–21 April 1998|page=9|issn=0953-4563|oclc=49953699}}
*{{Cite magazine |title=First Canadian Class 66 arrives in Britain! |magazine=[[RAIL (magazine)|RAIL]] |issue=330 |publisher=EMAP Apex Publications|date=6–19 May 1998|pages=8–9|issn=0953-4563|oclc=49953699}}
*{{Cite magazine |title=Class 66 hauls revenue-earning freight train after just six weeks! |magazine=[[RAIL (magazine)|RAIL]] |issue=333 |publisher=EMAP Apex Publications|date=17–30 June 1998|pages=8–9|issn=0953-4563|oclc=49953699}}
*{{Cite magazine |title=Off to Colorado with Ed's new Class 66!|first=Mel|last=Holley |magazine=[[RAIL (magazine)|RAIL]] |issue=335 |publisher=EMAP Apex Publications|date=15–28 July 1998|pages=24–30|issn=0953-4563|oclc=49953699}}
*{{Cite magazine |title=Three more new Class 66s arrive in Britain – it may be 50 by Christmas|first=Mel|last=Holley |magazine=[[RAIL (magazine)|RAIL]] |issue=339 |publisher=EMAP Apex Publications|date=9–22 September 1998|pages=12–13|issn=0953-4563|oclc=49953699}}
*{{Cite magazine |title=Seven more Class 66s ready for delivery to EWS |magazine=[[RAIL (magazine)|RAIL]] |issue=340 |publisher=EMAP Apex Publications|date=23 September – 6 October 1998|page=14|issn=0953-4563|oclc=49953699}}
*{{Cite magazine |title=Second batch of Class 66s arrive – and they go straight into traffic |magazine=[[RAIL (magazine)|RAIL]] |issue=342 |publisher=EMAP Apex Publications|date=21 October – 3 November 1998|page=17|issn=0953-4563|oclc=49953699}}
*{{Cite magazine |title=Third batch of '66s' arrives as EWS hires four ships |magazine=[[RAIL (magazine)|RAIL]] |issue=343 |publisher=EMAP Apex Publications|date=4–17 November 1998|page=12|issn=0953-4563|oclc=49953699}}
*{{Cite magazine |title=EWS on target for 60 '66s' by Christmas |magazine=[[RAIL (magazine)|RAIL]] |issue=344 |publisher=EMAP Apex Publications|date=18 November – 1 December 1998|page=10|issn=0953-4563|oclc=49953699}}

== External links ==
{{Commons category multi|British Rail Class 66}}
*{{Cite magazine |url=http://pigeonsnest.co.uk/stuff/class66/class66.html |title=Nothing stops a Class 66 |magazine=[[RAIL (magazine)|RAIL]] |publisher=[[Bauer Media Group]] |issue=492 |url-status=dead |archive-url=https://web.archive.org/web/20071010083606/http://pigeonsnest.co.uk/stuff/class66/class66.html |archive-date=10 October 2007 |via=Pigeonsnest.co.uk}}
*{{Cite magazine |url=http://www.railwayherald.org/magazine/pdf/RHUK/Issue127.pdf |magazine=Railway Herald |date=18 April 2008 |issue=127 |issn=1751-8091 |pages=19–25 |title=Special Report: The Class 66s |access-date=10 February 2011 |archive-url=https://web.archive.org/web/20110727195803/http://www.railwayherald.org/magazine/pdf/RHUK/Issue127.pdf |archive-date=27 July 2011 |url-status=dead}}

{{British Rail Locomotives}}

[[Category:British Rail diesel locomotives|66]]
[[Category:Co-Co locomotives]]
[[Category:Electro-Motive Diesel locomotives]]
[[Category:Railway locomotives introduced in 1998]]
[[Category:Electro-Motive Division locomotives]]
[[Category:Standard-gauge locomotives of Great Britain]]
[[Category:Diesel–electric locomotives of Great Britain]]
[[Category:Freight locomotives]]