WDM4_18001_NRM1.jpg (137931 bytes)

Indian Railways diesel locomotive WDM4 No. 18001. This is one of 72 EMD locomotives based on the SD24, delivered 1962. 1939 kW, 140 km/h. These were acquired at the same time as the Alco WDM2 and successful in tests, they remained in service until the 1990s but an agreement for transfer of technology could not be found at the time so Alco-based locomotives became the backbone of Indian Railways instead. 37 years later, IR turned to EMD again, with Alco long out of business, and started production of the WDP4, WDG4 and WDG5 series under a new agreement. National Rail Museum New Delhi, 2012-12-07. tobias b köhler

WDM4_18001_NRM2.jpg (133878 bytes)

Indian Railways diesel locomotive WDM4 No. 18001 among some others. Why WDM4, by the way? There was a WDM3 too, 8 units built by Henschel with hydrodynamic transmission, now all out of service. Under the new system since 2002, WDM3 was re-used for higher powered versions of the WDM2 (the WDM3A and WDM3D). National Rail Museum New Delhi, 2012-12-07. tobias b köhler