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Indian locomotive class YL

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Indian locomotive class YL
Type and origin
Power typeSteam
BuilderHenschel & Son
Hitachi
MÁVAG
Robert Stephenson and Hawthorns
Build date1952-1957
Total produced264
Specifications
Configuration:
​
 • Whyte2-6-2
Gauge1,000 mm (3 ft 3+3⁄8 in)
Coupled dia.1,092 mm (3 ft 7.0 in)
Wheelbase:​
 • Engine6,680 mm (21 ft 11 in)
 • Coupled2,540 mm (8 ft 4 in)
 • incl. tender13,367 mm (43 ft 10.3 in)
Length:
​
 • Over buffers16,396 mm (53 ft 9.5 in)
Axle load8 t (7.9 long tons; 8.8 short tons)
Adhesive weight24 t (24 long tons; 26 short tons)
Service weight38 t (37 long tons; 42 short tons)
Firebox:​
 • Grate area1.67 m2 (18.0 sq ft)
Boiler pressure14.5 bar (210 psi)
Heating surface48.77 m2 (525.0 sq ft)
Superheater:
​
 • Heating area12.1 m2 (130 sq ft)
CylindersTwo, outside
Cylinder size312 mm × 560 mm (12.3 in × 22.0 in)
Valve gearWalschaerts
Career
OperatorsIndian 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

[edit]
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

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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

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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:[7]

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

References

[edit]
  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.

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