Indian locomotive class WDM-2

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WDM-2
WDM-2 18233 Kundan on display.
Type and origin Power type Diesel Builder Alco, BLW Model DL560C Build date 1962–1998 Total produced WDM-2/A/B: 2,700
Specifications Configuration: ​  • UIC Co′Co′  • Commonwealth Co-Co Gauge 1,676 mm (5 ft 6 in) Bogies ALCO Asymmetric cast frame trimount Wheel diameter 1,092 mm (3 ft 7 in) Wheelbase 12.834 m (42 ft 1+1⁄4 in) Length 17.12 m (56 ft 2 in) Width 2.864 m (9 ft 4+3⁄4 in) Height 4.185 m (13 ft 8+3⁄4 in) Axle load 18,800 kg (41,400 lb) Loco weight 112,800 kg (248,700 lb) Fuel type Diesel Fuel capacity 5,000 L (1,100 imp gal; 1,300 US gal) Prime mover ALCO 251-B RPM range 400 - 1,000 rpm Engine type V16 diesel Aspiration Turbo-supercharged Traction motors GE752, BHEL 4906 BZ and 4907 AZ Cylinders 16 Cylinder size 228 mm × 266 mm (8.98 in × 10.47 in) bore×stroke Transmission Diesel-electric transmission MU working 2 Train brakes Air, Vacuum and Dual
Performance figures Maximum speed 120 km/h (75 mph) Power output Max:2,600 hp (1,900 kW) Site rated:2,430 hp (1,810 kW) Tractive effort 30.4 t (30 long tons; 34 short tons) Factor of adh. 0.27
Career Operators Indian Railways Numbers 16000-16887, 17100-17999, 18040-18079, 18112-18514, 18523-18900, 18903-18999 Nicknames Jumbo, Prabal Locale All over Indian Railways Delivered 1962; 62 years ago First run 1962; 62 years ago Retired November 2023; 9 months ago Preserved 10 Disposition Few are still in inferior service , rest scrapped.

The Indian locomotive class WDM-2 is a class of diesel-electric locomotive that was developed in 1962 by American Locomotive Company (ALCO) for Indian Railways. The model name stands for broad gauge (W), Diesel (D), Mixed traffic (M) engine, 2nd generation (2). They entered service in 1962. A total of more than 2,700 WDM-2 was built at ALCO and Banaras Locomotive Works (BLW or DLW, as it was formerly Diesel Locomotive Works), Varanasi between 1962 and 1998, which made them the most numerous class of mainline diesel locomotive until its successor the WDM-3A.

The WDM-2 is one of the most successful locomotives of Indian Railways^{[peacock prose]} serving both passenger and freight trains for over 60 years. A few WDM-2 units were exported to neighbouring countries like Sri Lanka and Bangladesh. Despite the introduction of more modern types of locomotives like WDG-4 and electrification, a significant number are still in use, both in mainline and departmental duties. As of November 2023, all WDM-2 units have been retired, with further examples in service as WDM-3A or WDM-2S.