View source for ADL/ADC class diesel multiple unit

{{Use dmy dates|date=November 2019}}
{{Infobox Train
| background = #3E53A4
| name = ADL/ADC class railcar
| image = Waitakere Train.jpg
| imagesize = 
| caption = A refurbished ADL/ADC near Britomart in 2009
| interiorimage = 
| interiorcaption = 
| stocktype = 
| service = Australia: 1982–1993,<br>New Zealand: 1993–2022
| manufacturer = [[UGL Rail|A Goninan & Co]]
| factory = [[Newcastle, New South Wales|Newcastle]]
| family = 
| replaced = New Zealand: [[NZR 56-foot carriage|56-foot carriages]]
| yearconstruction = 1981–1985
| yearservice = 1981 (Perth)<br>1993 (Auckland)
| refurbishment = 2002-2003, 2008, 2017-2019 (Life Extensions)
| yearscrapped = 
| numberconstruction = 
| numberbuilt = 10 sets
| numberservice = 0 sets
| numberpreserved = 
| numberscrapped = 
| formation = ADL+ADC
| fleetnumbers = ADL 801–ADL 810<br>ADC 851–ADC 860
| capacity = 132
| operator = [[Westrail]], [[Tranz Metro]], [[Transdev Auckland]]|
| depots = Westfield, Pukekohe
| lines = [[Southern Line (Auckland)|Southern Line]] (Papakura – Pukekohe)
| carbody = {{convert|20.26|m|ftin|0|abbr=on}}
| trainlength = {{convert|42.20|m|ftin|0|abbr=on}}
| carlength = {{convert|21.10|m|ftin|0|abbr=on}} over couplers
| width = {{convert|2.74|m|ftin|0|abbr=on}}
| height = {{convert|3.84|m|ftin|0|abbr=on}}
| floorheight = {{convert|1.12|m|ftin|0|abbr=on}}
| platformheight = 
| entrylevelorstep = 
| art-sections = 
| doors = Air-operated sliding doors; two each side (four per car), {{convert|1.26|m|ftin|0|abbr=on}} wide
| maxspeed = {{convert|90|km/h|mph|0|abbr=on}}
| weight = ADL: {{convert|42.97|t|lb|-3}}<br>ADC: {{convert|35.75|t|lb|-3}}
| acceleration = 
| deceleration = 
| traction = 
| engine = [[Cummins]] NT855 R4
| poweroutput = ADL: 2 x {{convert|205|kW|hp|0|abbr=on}}, one engine for each bogie
| transmission = [[Voith]]
| aux = ADC: diesel [[alternator]]
| powersupply = 
| hvac = [[HVAC|Heating & air conditioning]]
| electricsystem = 
| collectionmethod = 
| uicclass = Bo′Bo′+2′2′
| aarwheels = 
| bogies = 
| brakes = [[Electro-pneumatic]]
| safety = 
| coupling = Australia: [[Norwegian coupling]]<br>NZ: [[Kidney link & pin]]
| multipleworking = Within class
| gauge = {{RailGauge|1067mm|lk=on}}
}}

The '''ADL class''' is a class of [[diesel multiple unit]]s that were last operated by [[Auckland One Rail]] on the [[commuter rail|suburban rail network]] in [[Auckland]], New Zealand. Originally built in the early 1980s by [[UGL Rail|A Goninan & Co]] for [[Westrail]] of Western Australia, they were sold in 1993 by Westrail's successor, [[Metropolitan Transport Trust|Transperth]], to [[Tranz Rail|New Zealand Rail]]. The units are currently owned by [[Auckland Transport]], and were withdrawn from service in August 2022 and transported to [[Glenbrook Vintage Railway]] and Pukeoware depot for storage.

==History==
[[File:Auckland_Railway_Station_Beach_Road.jpg|thumb|left|Unrefurbished ADL 804 at [[The Strand Station|Auckland Railway Station]], prior to 2003]]
Between 1981 and 1985, ten two-carriage stainless steel sets were manufactured for the [[Metropolitan Transport Trust]] and [[Westrail]] by [[UGL Rail|A Goninan & Co]], [[Newcastle, New South Wales|Newcastle]].<ref name=GrayMay>{{MayGray-WAGRPassCar |pages=319–323}}</ref>

Following the electrification of the [[Railways in Perth|Perth rail network]] they were rendered surplus and in 1993 all were sold, along with the older [[ADK/ADB class diesel multiple unit|ADK/ADB class]], to New Zealand Rail to replace locomotive-hauled [[NZR 56-foot carriage|56-foot carriages]] on suburban trains in [[Auckland]].<ref name=GrayMay/><ref name="thespinoff" />{{sfn|Churchman & Hurst|2001|p=64}} 

The units arrived in Auckland from Perth in April 1993.{{sfn|Parsons|2002|p=36}} One unit went to [[Hutt Workshops]] in the winter of 1993 for staff familiarisation, while the other units were prepared for New Zealand service at Westfield locomotive depot.{{sfn|Parsons|2002|p=36}}

As a result of the units’ introduction, station platforms in Auckland needed to be raised.<ref name="thespinoff" /> 

In October 1993, prior to New Zealand Rail being privatised, the company sold the class to the [[Auckland Regional Council]].<ref name="thespinoff">{{cite web|url=https://thespinoff.co.nz/auckland/31-08-2017/twenty-million-trips-auckland-rail-has-come-a-long-way-in-a-very-short-time/|title=Twenty million trips! Auckland rail has come a long way in a very short time|publisher=[[The Spinoff]]|date=31 August 2017|author=Matt Lowrie|access-date=28 February 2019|archive-date=1 March 2019|archive-url=https://web.archive.org/web/20190301074437/https://thespinoff.co.nz/auckland/31-08-2017/twenty-million-trips-auckland-rail-has-come-a-long-way-in-a-very-short-time/|url-status=live}}</ref>[[File:DMU's 853-803 (14948687788) (cropped).jpg|left|thumb|Refurbished ADL 853-803 near [[New Lynn railway station|New Lynn]], 2014]]

=== Upgrades and retirement ===
In 2002, the Auckland Regional Council funded an upgrade of the class, which included refurbishment of the interiors and painting in the new [[MAXX (brand)|MAXX blue]] colour scheme. The first refurbished unit entered service in December 2002, the last in November 2003.<ref name="ARTA">{{cite web |date=2010 |title=Auckland Regional Transport Authority (ARTA): 1 December 2004 – 31 October 2010 |url=https://at.govt.nz/media/imported/4468/AT-ARTA-Report-TheARTAYears2004-2009.pdf |access-date=28 February 2019 |publisher=[[Auckland Transport]] |archive-date=26 January 2019 |archive-url=https://web.archive.org/web/20190126031319/https://at.govt.nz/media/imported/4468/AT-ARTA-Report-TheARTAYears2004-2009.pdf |url-status=live }}</ref>

In 2011, [[Auckland Transport]] indicated four two-car sets would be retained after the [[Auckland railway electrification|Auckland rail electrification project]] is completed.<ref>{{cite web |title=Electric trains: technical details |url=http://transportblog.co.nz/2011/10/10/electric-trains-technical-details/ |url-status=dead |archive-url=https://web.archive.org/web/20111011103909/http://transportblog.co.nz/2011/10/10/electric-trains-technical-details/ |archive-date=11 October 2011 |access-date=10 October 2011 |publisher=Auckland Transport Blog}}</ref> 

Due to the introduction of the [[New Zealand AM class electric multiple unit|AM class electric multiple unit]] on all of Auckland's suburban railway lines, the ADL/ADC units were retained only for use between [[Pukekohe Railway Station|Pukekohe]] and [[Papakura railway station|Papakura station]] as a shuttle service. This was due to that portion of the [[North Island Main Trunk]] not being electrified at the time. The diesel units were also used to provide service during power outages when electric trains could not operate.<ref>{{Cite web |title=Auckland power cuts may take several days to fix for some as thousands of properties remain without electricity |url=https://www.1news.co.nz/2018/04/10/auckland-power-cuts-may-take-several-days-to-fix-for-some-as-thousands-of-properties-remain-without-electricity/ |access-date=2022-08-13 |website=1 News |language=en |archive-date=13 August 2022 |archive-url=https://web.archive.org/web/20220813033129/https://www.1news.co.nz/2018/04/10/auckland-power-cuts-may-take-several-days-to-fix-for-some-as-thousands-of-properties-remain-without-electricity/ |url-status=live }}</ref>  

In 2020, the government announced funding for electrification of this section,<ref>{{cite web |author=Jane Paterson |date=29 January 2020 |title=Govt's $12b infrastructure spend: Rail, roads and DHBs the big winners |url=https://www.rnz.co.nz/news/political/408385/govt-s-12b-infrastructure-spend-rail-roads-and-dhbs-the-big-winners |access-date=29 January 2020 |website=[[Radio New Zealand]] |archive-date=29 January 2020 |archive-url=https://web.archive.org/web/20200129002150/https://www.rnz.co.nz/news/political/408385/govt-s-12b-infrastructure-spend-rail-roads-and-dhbs-the-big-winners |url-status=live }}</ref> which once completed will render the ADL/ADC DMUs surplus to requirements. The ADL class were retired in August 2022.<ref>{{cite web | url=https://at.govt.nz/pukekohetrains | title=Electric trains to Pukekohe | access-date=29 July 2022 | archive-date=29 July 2022 | archive-url=https://web.archive.org/web/20220729004444/https://at.govt.nz/pukekohetrains | url-status=live }}</ref>

Two out of service ADLs were transferred to [[Glenbrook Vintage Railway]] (GVR) for storage in 2021 to make space for new EMUs. The DMUs were hauled to GVR by the railway's own [[New Zealand DB class locomotive|DBR1254]], because KiwiRail were unable to provide motive power for the transfers.<ref>{{cite web|url=https://www.pressreader.com/uk/the-railway-magazine/20210127/284073439329971|title=DMUs move around New Zealand for preservation and secure storage|publisher=The Railway Magazine|date=27 January 2021|accessdate=13 August 2022|archive-date=13 August 2022|archive-url=https://web.archive.org/web/20220813050758/https://www.pressreader.com/uk/the-railway-magazine/20210127/284073439329971|url-status=live}}</ref> The remainder of the ADLs are now also stored at [[Glenbrook Vintage Railway]] and Pukeoware depot.

==References==
===Citations===
{{Reflist}}

===Bibliography===
{{refbegin}}
* {{cite book |title= The Railways of New Zealand: A Journey through History |last1= Churchman |first1= Geoffrey B |last2= Hurst |first2= Tony |year= 2001 |publisher=Transpress New Zealand |edition=Second  |location= Wellington |isbn= 0-908876-20-3 |ref=CITEREFChurchman & Hurst2001}} (First edition 1990, 1991)
* {{cite book|last=Parsons|first=David|title=New Zealand Railway Motive Power 2002|publisher=[[New Zealand Railway and Locomotive Society]]|year=2002|isbn=978-0-908573-78-3|pages=64|url=http://www.railsoc.org.nz/pub/books.htm|access-date=28 February 2019|archive-url=https://web.archive.org/web/20070307092833/http://www.railsoc.org.nz/pub/books.htm|archive-date=7 March 2007|url-status=dead}}
{{refend}}

==External links==
* [http://nzrailwaysrollingstocklists.weebly.com/adl---auckland-of-1993.html ADL class Auckland 1993 – New Zealand Railways Rollingstock List] {{Webarchive|url=https://web.archive.org/web/20190228192128/http://nzrailwaysrollingstocklists.weebly.com/adl---auckland-of-1993.html |date=28 February 2019 }}
{{commons category-inline|NZR ADL class|ADL/ADC class}}

{{NZR Locomotives|state=collapsed}}
{{Perth public transport |state=collapsed}}
{{WAGR Railcars |state=collapsed}}

{{DEFAULTSORT:ADL ADC class diesel multiple unit}}
[[Category:Diesel multiple units of New Zealand]]
[[Category:Diesel multiple units of Western Australia]]
[[Category:Passenger rail transport in Perth, Western Australia]]