Indian locomotive class YL

Indian locomotive class YL
Type and origin Power type Steam Builder Henschel & Son Hitachi MÁVAG Robert Stephenson and Hawthorns Build date 1952–1957 Total produced 264
Specifications Configuration: ​  •  Whyte 2-6-2 Gauge 1,000 mm (3 ft 3+3⁄8 in) Coupled dia. 1,092 mm (3 ft 7.0 in) Wheelbase: ​  • Engine 6,680 mm (21 ft 11 in)  • Coupled 2,540 mm (8 ft 4 in)  • incl. tender 13,367 mm (43 ft 10.3 in) Length: ​  • Over buffers 16,396 mm (53 ft 9.5 in) Axle load 8 t (7.9 long tons; 8.8 short tons) Adhesive weight 24 t (24 long tons; 26 short tons) Service weight 38 t (37 long tons; 42 short tons) Firebox: ​  • Grate area 1.67 m2 (18.0 sq ft) Boiler pressure 14.5 bar (210 psi) Heating surface 48.77 m2 (525.0 sq ft) Superheater: ​  • Heating area 12.1 m2 (130 sq ft) Cylinders Two, outside Cylinder size 312 mm × 560 mm (12.3 in × 22.0 in) Valve gear Walschaerts
Career Operators Indian Railways
[1] [2]

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

YL 5112 in Mhow, 1992

The YL class locomotives were designed for mixed service^{[ clarification needed ]} 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. ^[3] 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. ^{[4] [ unreliable source? ]} Numbers 5000 and 5010 are stored in very poor condition at Indian Railways' own workshops in Izzatnagar near Bareilly. ^[5]

Builders and numbers

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
Source: [6]

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: ^[7]

Regional zone	Quantity
Central Railways	6
Northern Railways	10
North Eastern Railways	130
Southern Railways	44
Western Railways	74

References

1. Smith, Jonathan (2009). "Indian Government Railways steam locomotives". The terminal: Standard steam locomotives. Iowa State University . Retrieved 30 November 2024.
2. Hughes 1977, p. 92.
3. Hughes 1977, p. 23.
4. "Steam locomotives in India". steamlocomotive.info. Retrieved 22 January 2024.
5. "Preserved Steam Locomotives on IR". Indian Railways Fan Club (IRFCA). Retrieved 22 January 2024.
6. Hughes 1977, p. 24.
7. Hughes 1977, p. 96.

Hughes, Hugh (1977). Steam Locomotives in India, Part 2 – Metre Gauge. The Continental Railway Circle. ISBN   0-9503469-3-4.

External links

• YL class technical diagram, Indian Railways Fan Club (IRFCA)