| Indian locomotive class YL | |
| Powertype: | Steam |
| Builder: | Henschel & Son Hitachi MÁVAG Robert Stephenson and Hawthorns |
| Builddate: | 1952-1957 |
| Totalproduction: | 264 |
| Coupleddiameter: | 1092mm |
| Engine Total: | 6680mm |
| Coupled: | 2540mm |
| Wheelbasewithtender: | 13367mm |
| Over Buffers: | 16396mm |
| Axleload: | 8t |
| Weightondrivers: | 24t |
| Serviceweight: | 38t |
| Firearea: | 1.67m2 |
| Boilerpressure: | 14.5bar |
| Totalsurface: | 48.77m2 |
| Superheaterarea: | 12.1m2 |
| Cylindercount: | Two, outside |
| Cylindersize: | 312x |
| Valvegear: | Walschaerts |
| Operator: | Indian Railways |
| Notes: | [1] |
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.
The YL class locomotives were designed for mixed service 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. 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.[2] Numbers 5000 and 5010 are stored in very poor condition at Indian Railways' own workshops in Izzatnagar near Bareilly.[3]
| 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 | |
The YP 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:
| Regional zone | Quantity |
|---|---|
| Central Railways | 6 |
| Northern Railways | 10 |
| North Eastern Railways | 130 |
| Southern Railways | 44 |
| Western Railways | 74 |
Book: Hughes, Hugh . Steam Locomotives in India, Part 2 – Metre Gauge . The Continental Railway Circle . 1977 . 0-9503469-3-4.
