Narrow-gauge locomotives of India
This is a list of narrow-gauge locomotives that have been or are being operated by Indian Railways. All railways except the heritage ones are closed or under conversion/are converted to the nation-wide standard 5 ft 6 in (1,676 mm) gauge, under Project Unigauge. So narrow-gauge locomotives are operating only on the heritage routes as of 2021.
General[1]
- ZDM-1: This locomotive was built by Arn. Jung. These were called the class DZ on NR (Kalka-Shimla Railway). This was a narrow-gauge locomotive with 2ft 6in (762 mm) wide gauge. It was identical to NDM-1 class with 2'0" gauge. Only four of these locos were regauged to 2'0" gauge and converted to NDM-1 units. When the ZDM-3 locos were available in (1972-1982). The fifth loco NR #704, was used at Pragati Maidan in New Delhi, where it was used to haul a short train of aluminium-bodied coaches on a 1.5km figure-8 track at a exhibition centre. Loco numbers were not written on the body of the loco.
- ZDM-2: This was a narrow-gauge locomotive with 2ft 6in (762 mm) wide gauge. These loco were mainly used in Nainpur-Gondia section narrow-gauge route. All the locomotives are retired/withdrawn from service.
- ZDM-3: This is a narrow-gauge locomotive with 2ft 6in (762 mm) wide gauge of Indian Railways. This locomotives can be found on the routes of Kalka-Shimla route and Kangra Valley route.
- ZDM-4: This locomotives were built by CLW and they were the modified version of ZDM-3 class with an extra axle to reduce axle load (1-B-B-1 bogies). But this extra axle caused wheel slip. This locomotives can be found on routes like Kangra Valley and were found earlier on the Nagpur narrow-gauge routes and Raipur narrow-gauge routes. This iss a narrow-gauge locomotive with 2ft 6in (762 mm) wide gauge.
- ZDM-4A: This was a variant of the ZDM-4 loco. This loco was used in Barsi Light Railway. These 1-B-B-1 locos had a 700hp power-pack. In 1996 one of this was sent to Nepal Jayanagar-Janakpur railway line. This was a narrow-gauge locomotive with 2ft 6in (762 mm) wide gauge.
- ZDM-5: This locomotive was one of the powerful narrow-gauge locomotives of the world. This locomotives were operated on routes like Pratapnagar narrow-gauge and Dhaulpur narrow-gauge routes. Four locos of this class were sent to work on Jayanagar-Janakpur railway in Nepal in 1994. All the locomotives are retired/withdrawn from service. This was a narrow-gauge locomotive with 2ft 6in (762 mm) wide gauge.
- NDM-1: This is a articulated locomotive with two prime movers. But in case of uphill travel it uses its both engines and in case of downhill it uses one engine on Neral-Matheran line. It was originally intended to be used in Kalka-Shimla route. This is a narrow-gauge locomotive with 2ft 0in (610 mm) wide gauge. When Kalka-Shimla route was regauged ZDM-3 was obtained for that route.
- NDM-5: This locomotives were used on Central Railways Gwalior narrow-gauge route. This locomotives were based on another narrow-gauge locomotive called ZDM-5. It had been equipped with dual brake system. All the locomotives are retired/withdrawn from service. This was a narrow-gauge locomotive with 2ft 0in (610 mm) wide gauge.
- NDM-6: This locomotive was originally intended for Matheran Light Railway but due to some reason it was then allocated to Darjeeling Himalayan Railway. Only 6 of these locomotives have been made and all are in service on Darjeeling Himalayan Railway. This is a narrow-gauge locomotive with 2ft 0in (610 mm) wide gauge.
- NBM-1: This locomotives were used on Central Railways Gwalior narrow-gauge route. This were the battery electric locomotives which are similar to YAM-1 locomotives. Only three units were built in 1987. All the locomotives are retired/withdrawn from service. This was a narrow-gauge locomotive with 2ft 0in (610 mm) wide gauge.
Specifications
| Name | Year | Manufacturer | Engine | Transmission | Wheels | Power(HP) | Speed(KM) | Weight(tonnes) | Starting TE (kg force) | Quantity | Serial No. |
|---|---|---|---|---|---|---|---|---|---|---|---|
| ZDM-1 | 1955 | Arn. Jung | MWM TRHS 518S, 145/128hp | Twin Voith hydraulic | B+B | 2x145 | 33 | 29 | 8790 | 5 | 543-547 |
| ZDM-2 | 1964-65 | Maschi-nenbau Kiel | Maybach V8 MD435 | Voith hydraulic | B-B | 700 (650 net) | 50 | 32 | 10560 | 25 | 123-147 |
| ZDM-3 | 1970-82, 2009-2020[2][3] | CLW, Parel | Mak/CLW 6M 282 A(K) | Suri hydromechanical transmission | B-B | 700 | 50 down / 32 up | 35 | 10500 | 40 | 148-167/178-187/168-177 (ex-ZDM-4) |
| ZDM-4/4A | 1975-77/1982-90 | CLW | Mak/CLW 6M 282 A(K) | Voith hydraulic | 1-B-B-1 | 700 | 50 | 39 | 7800 | 10/39 | 4: 168-177(later rebuilt as ZDM-3)/4A: 198-236 |
| ZDM-5 | 1989+ | CLW | KCL KTA-1150L | Voith hydraulic | B-B | 450 | 50 | 23 | 41+ | 501+ | |
| NDM-1 | 1955 | Arn. Jung | MWM TRHS 518S, 145/128hp | Twin Voith hydraulic | B+B | 2x145 | 33/16 | 29 | 8790 | 7 | 500-506(500, 504-506 ex-ZDM-1) |
| NDM-5 | 1987-89 | CLW | KCL KTA-1150L, 450hp | Voith hydraulic | B-B | 450 | 50 | 22 | 11 | 801-811 | |
| NDM-6 | 1997 | (SAN) Engg. and Loco Co. | Kirloskar-Cummins NTA 855L | Voith hydraulic | B | 335 | 30 | 17.2 | 6 | 600-605 | |
| NBM-1 | 1987 | BHEL | Battery electric | Bo-Bo | 80 | 3 | 21951+ |
Units produced and in service
| Name | Produced | In Service |
|---|---|---|
| ZDM-3 | 70 | 23 |
| ZDM-4 | 39 | 24 |
| ZDM-5 | 41 | 28 |
| NDM-1 | 17 | 12 |
| NDM-5 | 14 | 13 |
| NDM-6 | 06 | 06 |
| Total locomotives in service as of October 2021[4] | 106 | |
See also
References
- "Diesel Locomotive Classes – Meter Gauge & Narrow Gauge". IRFCA. Archived from the original on 11 July 2021. Retrieved 13 August 2021.
- "Parel workshop-made first ZDM3 loco to run in Kangra Valley". Mumbai Mirror. 8 July 2020. Archived from the original on 27 July 2020. Retrieved 13 August 2021.
- "Indian Railways Locomotive Roster Kalka (KLK) ZDM-3 701". IRFCA. Archived from the original on 27 July 2020. Retrieved 13 August 2021.
- "Indian Railways Locomotive Roster List Named Loco List". IRFCA. Archived from the original on 22 January 2021.
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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