{{Short description|Diesel-electric locomotive}} {{Use dmy dates|date=March 2020}} {{Infobox locomotive | name = Siemens Asiarunner<br>AR15, AR20<ref name="asp">{{cite web|url=http://transportation.siemens.com/ts/en/pub/products/lm/services/platforms/asiarunner.htm|archive-url=https://web.archive.org/web/20080318025443/http://www.transportation.siemens.com/ts/en/pub/products/lm/services/platforms/asiarunner.htm|archive-date=18 March 2008 |title= The Asiarunner – The flexible alternative|work=transportation.siemens.com (archive web.archive.org)}}</ref> | powertype = Diesel | image = D20E-016 QL1A.png | caption = A Vietnam Railways D20E pulling freight along National Route 1 (Vietnam) in 2024 | builddate = 2006? (Ordered 2004) | totalproduction = AR15 VR: 16 (for Vietnam Railways) | uicclass = Co′Co′ | gauge = AR15: {{track gauge|1000 mm|allk=on}}<br>to {{track gauge|1676 mm|lk=on}}<br>AR20: {{track gauge|1067 mm|lk=on}} | length = {{convert|19,180|mm|ftin|frac=8|abbr=on}}<ref name="spec">{{cite web|url=http://www.siemens.com.vn/trans/trans_Press1.htm|archive-url=https://web.archive.org/web/20080428204853/http://www.siemens.com.vn/trans/trans_Press1.htm|archive-date=28 April 2008|title= Technical data of locomotive|work=siemens.com.vn}} (''archive'' web.archive.org)</ref> | width = {{convert|2,688|mm|ftin|frac=8|abbr=on}}<br>{{convert|2,950|mm|ftin|frac=8|abbr=on}}<br> including mirrors<ref name="spec"/> | height = {{convert|3,945|mm|ftin|frac=8|abbr=on}} | axleload = AR15: {{cvt|3.5 to 16|t}}<br>AR20: {{cvt|16|t}} | locoweight = AR15 VR: 81t<ref name="vie"/> | fueltype = Diesel | fuelcap = {{convert|4000|L|impgal USgal|abbr=on|disp=br()}} | primemover = MTU 12V4000R41<ref name="spec"/> | enginetype = V12 diesel engine | maxspeed = {{convert|120|km/h|abbr=on}}| | poweroutput = AR15 {{cvt|1500|kW}}<br>AR20 {{cvt|2000|kW}}<br>AR15 ~{{cvt|1220|kW}}<br> at wheel<ref name="vie"/> | tractiveeffort = AR15: {{cvt|260-320|kN|disp=br()}} starting<br>AR20: {{cvt|320|kN|disp=br()}} starting | locale = Vietnam Railways }} The Siemens '''Asiarunner''' locomotives are contemporaries to the Eurorunner class and are designed specifically for the South-East Asian market - in particular metre gauge - key features are a Co'Co' wheel arrangement (resulting in low axle loads) and good clearance (see Loading gauge)
==Development==
Much of the development of the '''Asiarunner''' locomotive had to be done from scratch, since Siemens had no contemporary example of a narrow gauge, or of a locomotive that was built to a smaller loading gauge that UIC 505-1.<ref>{{cite journal|url=http://cat.inist.fr/?aModele=afficheN&cpsidt=18129930|title=Der Asiarunner für Vietnam = The asiarunner for Vietnam|author=Marc Oliver Girgert|author2=Armin Gasch| journal= Eisenbahntechnische Rundschau|issn= 0013-2845 |year=2006|volume=55|number=9|pages=580–584|language=de|publisher=Eurailpress, Hamburg}} </ref>
Nevertheless, the design mirrors in part the modular concept found in Siemens other locomotives (the Eurosprinter and Eurorunner). The main frame is one such module. The drivers cabins are also modular components.
Access to the main engine compartment is via the roof, which has three removable segments, there is a single side corridor which allows an escape route in the event of certain emergencies<ref>{{cite web|url=http://www.siemens.com.vn/trans/trans_Press.htm|archive-url=https://web.archive.org/web/20080428204846/http://www.siemens.com.vn/trans/trans_Press.htm|title= News from Transportation Systems : AsiaRunner AR15 VR|archive-date =28 April 2008| quote = AsiaRunner AR15 VR is the first locomotives in the Asian Runner family for the small gauges: 1000 and 1067mm|work=siemens.com.vr (archive web.archive.org)}}</ref> (compare the wide gauge Eurorunners which have two passageways)
The engine is a 12-cylinder MTU model - similar to that used in the Eurorunner except with 12 instead of 16 cylinders.
The locos can work in multiple with up to three connected.
== Operators ==
Whilst the Asiarunner was designed for use in Asia, Africa, South America and Australia<!-- really!? -->, its only operator is Vietnam Railways, with 16 AR15s running passenger and freight services on its Hanoi – Da Nang – Ho Chi Minh City route.<ref name="vie">[http://www.mobility.siemens.com/mobility/en/pub/references/details.cfm?z=1&do=app.detail&referenceID=1598&lID=2 Universal Locomotive AR15 VR, Vietnam Siemens.com]</ref>
== See also == * Siemens Eurorunner * Siemens Eurosprinter * Narrow gauge railways * Rail transport in Vietnam
== References == {{reflist}}
==External links== {{commons category|D20E locomotives}} * {{cite web|url=http://www.lok-report.de/innotrans2006/innotrans_asiarunner.html|archive-url=https://web.archive.org/web/20071021192107/http://www.lok-report.de/innotrans2006/innotrans_asiarunner.html|title=InnoTrans 2006 - Siemens: Asiarunner - Die flexible Entscheidung|language=de|archive-date=21 October 2007|work=lok-report.de, (archive web.archive.org)}} *{{cite web|url=https://www.k-report.net/clanky/asiarunner-vietnamskych-zeleznic/|title=Asiarunner Vietnamských železnic|author= Tobiáš Fuks|language=cs|date = 5 July 2010|work=k-report.net}} ;Images *{{cite web|url=https://www.bahnbilder.de/name/galerie/kategorie/Vietnam~Dieselloks~D20E.html|work=bahnbilder.de|title=D20E - Vietnam / Dieselloks |language=de}} *{{cite web|url=http://railvn.byethost3.com/D20E.html|title=Railways in Vietnam Locomotives-D20E|work=railvn.byethost3.com|author=David Gurnett}}
{{Locomotives of Vietnam}} {{Siemens}}
Category:Siemens locomotives Category:Diesel locomotives of Vietnam Category:Co′Co′ locomotives