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{{Infobox locomotive
| name = Indian locomotive class YL
| image = Indian Railways Class YL.jpg
| powertype = Steam
| builder = [[Henschel & Son]]<br>[[Hitachi]]<br>[[MÁVAG]]<br>[[Robert Stephenson and Hawthorns]]
| builddate = 1952–1957
| totalproduction = 264
| whytetype = {{whyte|2-6-2}}
| gauge = {{track gauge|1000 mm}}
| coupleddiameter = {{convert|1092|mm|ftin|abbr=on}}
| engine total = {{convert|6680|mm|ftin|abbr=on}}
| coupled = {{convert|2540|mm|ftin|abbr=on}}
| wheelbasewithtender = {{convert|13367|mm|ftin|abbr=on}}
| over buffers = {{convert|16396|mm|ftin|abbr=on}}
| axleload = {{convert|8|t|abbr=on}}
| weightondrivers = {{convert|24|t|abbr=on}}
| serviceweight = {{convert|38|t|abbr=on}}
| firearea = {{convert|1.67|m2|sqft|abbr=on}}
| boilerpressure = {{convert|14.5|bar|psi|abbr=on}}
| totalsurface = {{convert|48.77|m2|sqft|abbr=on}}
| superheaterarea = {{convert|12.1|m2|sqft|abbr=on}}
| cylindercount = Two, outside
| cylindersize = {{convert|312|x|560|mm|in|abbr=on}}
| valvegear = [[Walschaerts valve gear|Walschaerts]]
| operator = [[Indian Railways]]
| notes = <ref>{{Cite web |url=https://jdhsmith.math.iastate.edu/term/slinigr.htm |title=Indian Government Railways steam locomotives |last=Smith |first=Jonathan |date=2009 |website=The terminal: Standard steam locomotives |publisher=[[Iowa State University]] |access-date=30 November 2024 |quote=}}</ref>{{sfn|Hughes|1977|page=92}}
}}

The Indian locomotive '''class YL''' were [[2-6-2]] locomotives built for [[Indian Railways]]' [[metre-gauge]] network as one of the standard designs developed post-[[Partition of India|partition]] from the Indian Railway Standard (IRS) design locomotives.

== History ==
[[File:YL_5112_in_Mhow_1992.jpg|thumb|YL 5112 in [[Mhow]], 1992]]
The YL class locomotives were designed for mixed service{{Clarify|reason=Mixed-traffic duties? Mixed consist trains?|date=November 2024}} on branch lines as a successor to the [[Indian locomotive class YF|class YF]] that were built from 1929 and 1938. A total of 264 members were built by locomotive manufacturers in West Germany, [[Japan]], [[Hungarian People's Republic|Hungary]] and the United Kingdom.{{Sfn|Hughes|1977|p=23}} They were relatively light, with a service weight of 38 tons and an eight-ton axle load.

Many were in use until the end of steam traction in the 1990s, with three surviving into preservation. Number 5001 is on static display at [[Gorakhpur]] railway station.<ref>{{cite web|access-date=22 January 2024 |language=en |title=Steam locomotives in India |url=https://www.steamlocomotive.info/vlocomotive.cfm?Display=17764 |website=steamlocomotive.info}}</ref>{{Unreliable source?|date=November 2024}} Numbers 5000 and 5010 are stored in very poor condition at Indian Railways' own workshops in [[Izzatnagar]] near [[Bareilly]].<ref>{{cite web|access-date=22 January 2024 |language=en |publisher=Indian Railways Fan Club (IRFCA) |title=Preserved Steam Locomotives on IR |url=https://www.irfca.org/faq/faq-steam-preserved-2021.html}}</ref>

== Builders and numbers ==
{| class="wikitable"
!Builder
!Year
!Quantity
!Serial number
!Running number
!1957 running number
|-
|[[Robert Stephenson and Hawthorns]]
|1952
|10
|7434–7443
|2801–2810
|5000–5009
|-
|[[Hitachi Rail|Hitachi]]
|1956
|63
|12291–12353
|2811–2873
|5010–5072
|-
|[[MÁVAG]]
|1957
|40
|7472–7511
|2874–2913
|5073–5112
|-
|[[Henschel & Son|Henschel & Sohn]]
|1956
|151
|29381–29531
|7000–7150
|5113–5263
|-
| colspan="6" |{{Small|Source:{{sfn|Hughes|1977|page=24}}}}
|}

== Allocations ==
The YL class locomotives were mainly used in the north-east and west of India. By the end of 1976, all locomotives built were in service with the following regional zones of [[Indian Railways]]:{{Sfn|Hughes|1977|p=96}}
{| class="wikitable" style="text-align:center"
!Regional zone
!Quantity
|- style="text-align:right"
| style="text-align:left" |[[Central Railways]]
|6
|- style="text-align:right"
| style="text-align:left" |[[Northern Railways]]
|10
|- style="text-align:right"
| style="text-align:left" |[[North Eastern Railways]]
|130
|- style="text-align:right"
| style="text-align:left" |[[Southern Railway zone|Southern Railways]]
|44
|- style="text-align:right"
| style="text-align:left" |[[Western Railways]]
|74
|-
|}

== References ==
<references />
{{Cite book |last=Hughes |first=Hugh |title=Steam Locomotives in India, Part 2 – Metre Gauge |publisher=The Continental Railway Circle |year=1977 |isbn=0-9503469-3-4}}

== External links ==

* [https://www.irfca.org/gallery/Diagrams/Loco.jpg.html YL class technical diagram], Indian Railways Fan Club (IRFCA)
{{commons category|Indian locomotive class YL}}

{{Metre gauge locomotives of India}}

[[Category:2-6-2 locomotives]]
[[Category:1′C1′ h2 locomotives]]
[[Category:Hitachi locomotives]]
[[Category:Steam locomotives of India|YM]]
[[Category:Railway locomotives introduced in 1952]]
[[Category:Metre-gauge steam locomotives]]
[[Category:Henschel locomotives]]
[[Category:Robert Stephenson and Hawthorns locomotives]]

Indian locomotive class YL - Revision history

THIMMIRI RAVEENDRA: Starting new data - done