Indian locomotive class WDS-8

The Indian locomotive class WDS-8 is a class of diesel-electric locomotive that was developed in 1979 Chittaranjan Locomotive Works for Indian Railways but went to private sector. The model name stands for broad gauge (W), Diesel (D), Shunter (S) engine, 8th generation (8). They entered service in 1979. A total of 5 WDS-8 was built at Chittaranjan Locomotive Works (CLW), Varanasi between 1979 and 1982.

Indian locomotive class WDS-8
A brand new WDS-8 at CLW
Type and origin
Power typeDiesel
BuilderCLW
Build date1979-1982
Total produced5
Specifications
Configuration:
​
 • UICBo′Bo′
 • CommonwealthBo-Bo
Gauge1,676 mm (5 ft 6 in)
Wheel diameter1,092 mm (3 ft 7 in)
Wheelbase10.834 m (35 ft 6 1⁄2 in)
Width2.764 m (9 ft 7⁄8 in)
Height4.195 m (13 ft 9 1⁄8 in)
Loco weight73,000 kg (161,000 lb)
Fuel typeDiesel
Fuel capacity1,000 L (220 imp gal; 260 US gal)
Lubricant cap.530 L (120 imp gal; 140 US gal), 630 L (140 imp gal; 170 US gal) DLW
Water cap20 L (4.4 imp gal; 5.3 US gal), 28 L (6.2 imp gal; 7.4 US gal) DLW
Prime moverMAK 800hp diesel engine
Engine typeInline-6 diesel
AspirationTurbo-supercharged
GeneratorDC
Traction motors6 DC
Cylinders6
TransmissionDiesel-electric transmission
MU working2
Loco brakeAir, Vacuum
Train brakesVacuum , Air
Performance figures
Maximum speed35 km/h (22 mph)
Power outputMax:800 hp (600 kW)
Site rated:700 hp (520 kW)
Tractive effort22,000 t (21,653 long tons; 24,251 short tons) maximum 16.050 t (16 long tons; 18 short tons) continuous
Career
OperatorsSteel Authority of India
LocaleLeased and sold to some industrial concerns
First run1972
Current ownerSteel Authority of India
Dispositionwithdrawn

All WDS-8 units were exported to Steel Authority of India. As of January 2020, the locomotives are withdrawn from service.

History

The history of WDS-8 begins in early 1970s with the aim of addressing the shortcomings of the previous WDS-4 classes and remove steam locomotives from IR by a target date of 1990. The WDS8 was a competing bid from CLW to Diesel Locomotive Works WDS-6 class in the industrial private sector.[1] The WDS-8 had MAK 800hp diesel engine which was similar to engine used in the newly upgraded YDM-1 class.They had Short cabs with a single long narrow hood. But it was under under-powered compared to the WDS-6 class.[2]

CLW decided not to produce any more units after these 5 units and they were transferred them to Steel Authority of India (SAIL).[3]

None of the locomotives of this class are in service.

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See also

References

Notes
  1. "[IRFCA] Indian Railways FAQ: Diesel and Electric Locomotive Specifications". www.irfca.org. Retrieved May 22, 2020.
  2. "[IRFCA] Indian Railways FAQ: Locomotives -- Specific classes : AC Electric". www.irfca.org. Retrieved May 22, 2020.
  3. "[IRFCA] Indian / South-Asian Industrial Locos : Builders: Chittaranjan Locomotive Works". www.irfca.org. Retrieved May 22, 2020.

Bibliography
  • Hughes, Hugh (1996). Indian Locomotives: Part 4 – 1941–1990. Harrow, Middlesex: The Continental Railway Circle. ISBN 0-9521655-1-1.
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