Indian locomotive class WDS-3

Indian locomotive class WDS-3
Type and origin
Power typeDiesel-hydraulic
BuilderMaschinenbau Kiel
Serial number600330–600336[1]
Model650 C[1]
Build date1961
Total produced7
RebuilderCLW
Rebuild date1976–1978
Number rebuiltAll 7
Specifications
Configuration:
​
 • UICC
 • Commonwealth0-6-0dh
Gauge1,676 mm (5 ft 6 in)
Wheel diameter1,092 mm (3 ft 7 in)
Length:
​
 • Over couplers10.700 m (35 ft 1+1⁄4 in)
 • Over body9.430 m (30 ft 11+1⁄4 in)
Width3.030 m (9 ft 11+5⁄16 in)
Height4.267 m (14 ft 0 in)
Loco weight57 tonnes (56 long tons; 63 short tons)
Fuel typeDiesel
Engine type
Performance figures
Maximum speed
  • Mainline gear: 65 km/h (40 mph)
  • Shunting: 27 km/h (17 mph)
Power output
  • WDS-3
  • 618 hp (461 kW)
  • WDS-4C
  • 700 hp (520 kW)
Tractive effort
  • Mainline gear: 11,500 kgf (113,000 N; 25,000 lbf)
  • Shunting: 18,000 kgf (180,000 N; 40,000 lbf)
Career
OperatorsIndian Railways
Numbers19046–19052
LocaleAll over Indian Railways
DispositionAll scrapped

The class WDS-3 was a diesel-hydraulic locomotive used by Indian Railways for shunting and doing departmental work. The model name stands for broad gauge (W), diesel (D), shunting (S) 3rd generation (3). The WDS-3 is used mostly in the Northern Railway Zone (NR). All these locomotives were withdrawn and scrapped by the late 1990s.

History

The history of WDS-3 class starts in the early 1960s with the aim of the Indian Railways to address the growing requirement for a new shunting locomotive class. These locomotives were designed by Maschinenbau Kiel (MaK) to the specifications set by the Research Design and Standards Organisation (RDSO).[2] Many aspects of this locomotive were taken from the DB Class V 60. They use Suri hydrodynamic transmission developed for these diesel locomotives and were designed as shunting-cum-shuttle service locomotives.[2] For this purpose, the reversing gear box attached to the Suri transmission was designed to have two gear stages; in the lower gear, designated as "shunting gear", the locomotive was designated to have a maximum speed of 27 km/h and in the higher speed gear designated as "mainline gear", the maximum locomotive speed was 65 km/h.[3] The locomotive was fit for both shunting and mainline type of services up to a limited speed of 65 km/h.[3] Subsequently, it was decided to manufacture locomotives of similar type ingeniously by Chittaranjan Locomotive Works (CLW). These locomotives are designated as WDS-4 class.

When the lot of 7 WDS3 shunters came, initially they had a lot of troubles with these locomotives, but the trouble was confined more to the power pack than to the transmission. But in course of time, going into detail about the troubles that were being experienced and the mechanics were able to get over a lot of these difficulties and in-fact the transmission was also modified to suit with the engine. Between 1976 and 1978 all seven units were rebuilt to WDS-4B specifications by CLW, and received a new engine and a simplified transmission. These units were reclassified as WDS-4Cs. By 1990s all units were withdrawn from service and were scrapped.[4]

Former shed

  • Shakurbasti (SSB): All the locomotives of this class has been withdrawn from service.

See also

References

Notes

  1. ^ a b "MaK - 650 C für die Indian Railways (IR)". loks-aus-kiel.de (in German). Lok-Datenbank.de. Retrieved December 10, 2023.
  2. ^ a b Anees Siddiqui (March 2014). "Application of hydraulic based transmission system in Indian locomotives- A Review". Government Industrial Training Institute. ResearchGate. Retrieved December 10, 2023.
  3. ^ a b "WDS-3". IRFCA.org. Retrieved December 10, 2023.
  4. ^ "All Locos". IRFCA.org. Retrieved December 10, 2023.

Bibliography

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