The WDS-4 also known as Pappu is a class of diesel-hydraulic locomotive used by Indian Railways for shunting and departmental operations. The model name stands for broad gauge (W), Diesel (D), Shunting (S) engine. The WDS-4 was once used all over India but most have now been scrapped or condemned from active service.

This article includes a list of general references, but it lacks sufficient corresponding inline citations. (February 2020)

Indian locomotive class WDS-4
A WDS-4 Preserved at Valsad Railway station
Type and origin Power type Diesel-hydraulic Builder Chittaranjan Locomotive Works Build date 1967–1990 Total produced WDS-4: 27 WDS-4A: 5 WDS-4B: 450+ WDS-4C: 7 WDS-4D: 120+ Total: 662 Rebuilder BLW
Specifications Configuration: ​  • UIC C  • Commonwealth 0-6-0dh Gauge 1,676 mm (5 ft 6 in) Loco weight 60 tonnes (59 long tons; 66 short tons) Fuel type Diesel
Performance figures Maximum speed Mainline gear: 60–65 km/h (37–40 mph) Shunting: 25–38 km/h (16–24 mph) Power output 600–700 hp (450–520 kW) Tractive effort Mainline gear: 9,500–16,700 kgf (93,000–164,000 N; 21,000–37,000 lbf) Shunting: 18,000 kgf (180,000 N; 40,000 lbf)
Career Operators Indian Railways Numbers 19057…19732 Locale All over Indian Railways, some leased/sold to private industry

Locomotive sheds

See also

• Rail transport in India#History
• Locomotives of India
• Rail transport in India

References

• https://www.irfca.org/faq/faq-loco2d.html
• https://www.irfca.org/faq/faq-specs.html#WDS-6
• https://www.irfca.org/apps/locos/list

Bibliography