List of diesel locomotives of India

This article lists the diesel locomotives that have operated or are operating on Indian Railways.

Classification

Locomotives were classified by track gauge, motive power, function and power (or model number) in a four- or five-letter code. The first letter denotes the track gauge. The second letter denotes motive power (diesel or electric), and the third letter denotes use (goods, passenger, mixed or shunting). The fourth letter denotes a locomotive's chronological model number.

In 2002, a new classification system was adopted. For newer diesel locomotives, the fourth letter denotes their horsepower range. Not all diesel locomotives were reclassified, and the fourth letter continues to denotes their model number.

A locomotive may have a fifth letter, generally denoting a technical variant, subclass or subtype: a variation in the basic model or series, or a different motor or manufacturer. Under the new system, the fifth letter further refines horsepower in 100-hp increments: A for 100 hp, B for 200 hp, C for 300 hp and so on. A WDP-3A is a 3,100 hp (2,300 kW) locomotive, and a WDM-3F is 3,600 hp (2,700 kW).

The system does not apply to steam locomotives, which are no longer used on main lines. They retain their original class names, such as M- or WP-class.

Syntax

First letter (gauge):
- W – Broad gauge (wide) – 5 ft 6 in (1,676 mm)
- Y – Metre gauge (yard) – 1,000 mm (3 ft 3+3⁄8 in)
- Z – 2 ft 6 in (762 mm) narrow gauge
- N – 2 ft (610 mm) narrow (toy) gauge
Second letter (motive power):
- D – Diesel
- C – DC electric (DC overhead line)
- A – AC electric (AC overhead line)
- CA – DC and AC (AC or DC overhead line); CA is considered one letter
- B – Battery (rare)
Third letter (job type):
- G – Goods
- P – Passenger
- M – Mixed (goods and passenger)
- S – Shunting (switching)
- U – Multiple unit (electric or diesel)
- R – Railcar

In WDM 3A, W denotes broad gauge; D denotes diesel power; M denotes mixed use (goods and passenger service), and 3A denotes 3,100 hp (2,300 kW) (3,000 + 100). In WAP 5, W is broad gauge; A is AC electric; P is passenger service, and 5 indicates that the locomotive is the fifth model used.

Broad-gauge locomotives

Broad-gauge diesel classification codes are:

WDM – Wide diesel mixed
WDP – Wide diesel passenger
WDG – Wide diesel goods
WDS – Wide diesel shunter

Mixed class (WDM series)

Name	Manufacturer	Wheel Arr	Quantity Built	Built year(s)	Power	Current Status	Preserved units	Comments
WDM-1	ALCO	Co-Co	100	1957-1959	1,977 hp	Retired	1	First mainline diesel locomotive.
WDM-2	ALCO/BLW	Co-Co	1440	1962–1998	2,600 hp	In service	9	A few still in service
WDM-2G	BLW	Co-Co	2	2013	2,400 hp	In Service
WDM-3	Henschel	Bo-Bo	8	1962-1970	2,500 hp	Retired	None
WDM-3A	BLW	Co-Co	1402	1994–2015	3,100 hp	In service	1 Earmarked
WDM-3B	BLW	Co-Co	8, all rebuilt back to WDM-3A	2005-2006	3,100 hp	In service		All rebuilt back to WDM-3A
WDM-3C	BLW	Co-Co	10	2002	3,300 hp	In service	None	All rebuilt back to WDM-3D
WDM-3D	BLW	Co-Co	500	2003-2016	3,300 hp	In service
WDM-3E	BLW	Co-Co	8	2008	3,500 hp	In service
WDM-3F	BLW	Co-Co	3	2008	3,600 hp	In service
WDM-4	GM	Co-Co	72	1961-1962	2,600 hp	Retired	2
WDM-6	BLW	Bo-Bo	2	1981-1982	1,350 hp	Retired	2	Both units earmarked for preservation
WDM-7	BLW	Co-Co	15	1987–1989	2,000 hp	In service	1 Earmarked	Currently used for shunting uses only

Passenger class (WDP series)

Name	Manufacturer	Wheel Arr	Quantity Built	Built year(s)	Power	Current Status
WDP-1	BLW	Bo-Bo	69	1995–1999	2,300 hp	In service
WDP-2/3A	BLW	Co-Co	69	1998–2001	3,100 hp	In service
WDP-4	EMD/BLW	Bo1-1Bo	100	2001–2008	4,000 hp	In service
WDP-4B	BLW	Co-Co	86	2008–2012	4,500 hp	In service
WDP-4D	BLW	Co-Co	525	2010–2018	4,500 hp	In service

Goods class (WDG series)

Name	Manufacturer	Wheel Arr	Quantity Built	Built year(s)	Power	Current Status
WDG-2/3A	BLW	Co-Co	1164	1994–2015	3,100 hp	In service
WDG-3B	BLW	Co-Co	4	2004	3,200 hp	In service
WDG-3C	BLW	Co-Co	1	2001	3,300 hp	In service
WDG-3D	BLW	Co-Co	1	2001	3,400 hp	In service
WDG-4	EMD/BLW	Co-Co	1188	1997–2015	4,000/4,500 hp	In service
WDG-4D	BLW	Co-Co	583	2013–2018	4,500 hp	In service
WDG-4G	GE/DLF	Co-Co	291	2017–present	4,500 hp	In service
WDG-5	BLW	Co-Co	7	2012-2018	5,500 hp	In service
WDG-6G	GE/DLF	Co-Co	43	2019–present	6,000 hp	In service

Shunter class (WDS series)

Name	Manufacturer	Wheel Arr	Quantity Built	Built year(s)	Power	Current Status	Preserved units	Comments
WDS-1	GE	Bo-Bo	15	1944-1945	386 hp	Retired	1	India's first diesel locomotive
WDS-2	Kraus Maffei	C	30	1954-1955	440 hp	Retired
WDS-3	Maschi- nenbau Kiel	C	7	1961	618 hp	Retired
WDS-4	CLW	C	27	1967-1969	600 hp	A few still in service	4
WDS-4A	CLW	C	5	1968	660 hp	Retired
WDS-4B	CLW	C	450	1969	700 hp	Retired
WDS-4C	CLW	C	7	1976-78	700 hp	Retired
WDS-4D	CLW	C	120	1984-90	700 hp	Retired
WDS-5	ALCO/BLW	Co-Co	21	1967	1,065 hp	In service		A few still in service
WDS-6	BLW	Co-Co	270	1975–	1,400 hp	In service	2 Earmarked
WDS-6AD	BLW	Co-Co	270	1975–	1,400 hp	In service	2 Earmarked
WDS-8	CLW	Bo-Bo	5	1979-1982	800 hp	Retired

Meter-gauge locomotives

Metre-gauge diesel classification code is:

YDM - Metre gauge diesel mixed

Mixed class (YDM series)

Name	Manufacturer	Wheel Arr	Quantity Built	Built year(s)	Power	Current Status
YDM-1	NBL	B-B	20	1954-56	700 hp	Retired
YDM-2	CLW	B-B	41	1986-90	700 hp	Retired
YDM-3	GM	1'Bo'Bo'1	30	1961-62	1,390 hp	Retired
YDM-4	ALCO/BLW	Co-Co	695	1961–1993	1,400 hp	In service
YDM-5	GM	Co-Co	25	1963-1964	1,390 hp	Retired

Narrow-gauge locomotives

Narrow-gauge diesel classification codes are:

ZDM - Narrow gauge 2 ft 6 in diesel mixed
NDM - Narrow gauge 2 ft diesel mixed

Mixed class (ZDM series)

Name	Manufacturer	Wheel Arr	Quantity Built	Built year(s)	Power	Current Status
ZDM-1	Arn. Jung	B+B	5	1955	290 hp	Retired
ZDM-2	Maschi-nenbau Kiel	B-B	25	1964-65	700 hp	Retired
ZDM-3	CLW	B-B	40	1970-82	700 hp	In service
ZDM-4/4A	CLW	1-B-B-1	10/39	1975-77/1982-90	700 hp	In service
ZDM-5	CLW	B-B	41	1989+	450 hp	In service

Mixed class (NDM series)

Name	Manufacturer	Wheel Arr	Quantity Built	Built year(s)	Power	Current Status
NDM-1	Arn. Jung	B+B	7	1955	290 hp	In service
NDM-5	CLW	B-B	11	1987-89	450 hp	In service
NDM-6	(SAN) Engg. and Loco Co.	B	6	1997	335 hp	In service

References

Notes

Bibliography

Hughes, Hugh (1996). Indian Locomotives: Part 4 – 1941–1990. Harrow, Middlesex: The Continental Railway Circle. ISBN 0-9521655-1-1. OCLC 35135033.

This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.