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Specifications
Specifications
Configuration:;
• AAR	C-C
• UIC	Co′Co′
• Commonwealth	Co-Co
Gauge	5 ft 6 in (1,676 mm)
Bogies	3-axle fabricated frame, swing bolster with equalizer beams
Wheel diameter	New: 1,220 mm (4 ft 0 in),; Half worn: 1,182 mm (3 ft 10+1⁄2 in); Full worn: 1,144 mm (3 ft 9 in)
Wheelbase	2,337 mm (7 ft 8 in)
Length:;
• Over couplers	20.168 m (66 ft 2 in)
• Over body	18.898 m (62 ft 0 in)
Width	3.200 m (10 ft 6 in)
Height	4.293 m (14 ft 1 in)
Frame type	3 Axle fabricated frame
Axle load	20.30 tonnes (19.98 long tons; 22.38 short tons)
Loco weight	124.00 tonnes (122.04 long tons; 136.69 short tons)
Sandbox cap.	16 sandboxes each
Power supply	110 V DC
Electric system/s	1.5 kV DC Overhead
Current pickup(s)	Pantograph
Traction motors	HS-373-BR
• Rating 1 hour	765A
• Continuous	620A
Gear ratio	16:59
Loco brake	Air/Hand, Regenerative braking
Train brakes	Vacuum
Compressor	7kg/cm²
Safety systems	Slip control, Over voltage relay, No volt relay, Low pressure governor, Vacuum governor Train parting alarms, and Brake cylinder cutoff valve

Type and origin
Type and origin
Power type	Electric
Designer	CLW
Builder	CLW
Build date	1961-1963
Total produced	21

Indian locomotive class WCM-5
Indian locomotive class WCM-5
	A WCM-5 hauling the Deccan Queen
Power type
Type and origin
Power type	Electric
Designer	CLW
Builder	CLW
Build date	1961-1963
Total produced	21
Configuration:;
Specifications
Configuration:;
• AAR	C-C
• UIC	Co′Co′
• Commonwealth	Co-Co
Gauge	5 ft 6 in (1,676 mm)
Bogies	3-axle fabricated frame, swing bolster with equalizer beams
Wheel diameter	New: 1,220 mm (4 ft 0 in),; Half worn: 1,182 mm (3 ft 10+1⁄2 in); Full worn: 1,144 mm (3 ft 9 in)
Wheelbase	2,337 mm (7 ft 8 in)
Length:;
• Over couplers	20.168 m (66 ft 2 in)
• Over body	18.898 m (62 ft 0 in)
Width	3.200 m (10 ft 6 in)
Height	4.293 m (14 ft 1 in)
Frame type	3 Axle fabricated frame
Axle load	20.30 tonnes (19.98 long tons; 22.38 short tons)
Loco weight	124.00 tonnes (122.04 long tons; 136.69 short tons)
Sandbox cap.	16 sandboxes each
Power supply	110 V DC
Electric system/s	1.5 kV DC Overhead
Current pickup(s)	Pantograph
Traction motors	HS-373-BR
• Rating 1 hour	765A
• Continuous	620A
Gear ratio	16:59
Loco brake	Air/Hand, Regenerative braking
Train brakes	Vacuum
Compressor	7kg/cm²
Safety systems	Slip control, Over voltage relay, No volt relay, Low pressure governor, Vacuum governor Train parting alarms, and Brake cylinder cutoff valve
Maximum speed
Performance figures
Maximum speed	120 km/h (75 mph)
Power output:;
• Starting	Max: 3,700 hp (2,760 kW)
• 1 hour	Max: 3,700 hp (2,760 kW)
• Continuous	Max: 3,170 hp (2,360 kW)
Tractive effort:;
• Starting	31,000 kgf (300 kN)
• 1 hour	21,772 kgf (210 kN)
• Continuous	17,690 kgf (170 kN)
Factor of adh.	0.25
Operators
Career
Operators	Indian Railways
Numbers	20083-20103
Official name	Lokmanya (for first locomotive)
Locale	Central Railways
Delivered	1960
First run	1961
Last run	January 2000
Retired	Early 2000s
Preserved	1
Disposition	One preserved, remainder scrapped

The Indian locomotive class WCM-5 is a class of 1.5 kV DC electric locomotives that was developed in 1961 by Chittaranjan Locomotive Works (CLW) for Indian Railways. The model name stands for broad gauge (W), Direct Current (C), Mixed traffic (M) engine, 5th generation (5). The WCM-5 was the first locomotive of any type to be fully developed and built in India, entering service in 1961.^{[citation needed]} A total of 21 WCM-5 locomotives were built at CLW between 1961 and 1963.

The WCM-5 served both passenger and freight trains for nearly 40 years. In 1998, the last WCM-5 locomotive ran with the Indrayani Express. With the introduction of more modern locomotives and 25 KV AC electrification, all were withdrawn in the early 2000s after repeated failures. After withdrawal, one locomotive was put on display at the Kolkata Rail Museum, while the rest of the locomotives have been scrapped.^{[citation needed]}

History

The history of WCM-5 began in the early 1960s with the stated aim of the Indian Railways (IR) to remove the ageing fleet of WCG-1 and WCP-1 class locomotives working on Central Railways (CR).^[1] So IR to procure 21 1500 V DC electric locomotives from Chittaranjan Locomotive Works (CLW), who also previously supplied steam locomotives to India during 1954–1955. They were the last "nosed" locomotives of any type to be manufactured.^[2]

The WCM-5 locomotives were used on many express trains such as the Deccan Queen, and the Indrayani Express, as well as freight trains. The Deccan Queen had WCM-5 with a matching livery until the 1990s. In the mid-1990s, the ageing WCM-5 began to fail regularly, disrupting train services. So Central Railways decided to withdraw these locomotives from service and by 2000, all units were withdrawn.^{[citation needed]}

Preserved examples

Class	Manufacturer	Loco Number	Previous shed	Name	Livery	Location	ref
WCM-5	Chittaranjan Locomotive Works	20103	Kalyan (KYN)		Cream/Lightblue with red lining	Preserved at Howrah Rail Museum	^[3]

Former sheds

Pune^{[citation needed]}
Kalyan (KYN)

References

^ Gudgin, D.S.E. (1976). Vulcan Foundry Locomotives 1832–1956. Truro: Bradford Barton. ISBN 978-0-85153-215-8.
^ "Refer pg 282" (PDF).
^ "Rail Museum". www.museumsofindia.org. Retrieved May 26, 2020.