Indian locomotive class YL
{{Infobox locomotive
| name = Indian locomotive class YL
| image = Indian Railways Class YL.jpg
| powertype = Steam
| builder = Henschel & Son
Hitachi
MÁVAG
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
| operator = Indian Railways
| notes = {{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=}}{{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 from the Indian Railway Standard (IRS) design locomotives.
History
File:YL_5112_in_Mhow_1992.jpg, 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 class YF that were built from 1929 and 1938. A total of 264 members were built by locomotive manufacturers in West Germany, Japan, 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.{{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}}{{Unreliable source?|date=November 2024}} Numbers 5000 and 5010 are stored in very poor condition at Indian Railways' own workshops in Izzatnagar near Bareilly.{{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}}
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
|1956 |63 |12291–12353 |2811–2873 |5010–5072 |
| MÁVAG
|1957 |40 |7472–7511 |2874–2913 |5073–5112 |
| 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 Railways |44 |
| style="text-align:right"
| style="text-align:left" |Western Railways |74 |
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:Railway locomotives introduced in 1952