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A WDS-6 locomotive basically consists of a YDM-4 powerpack (a 6-cylinder, 4-stroke, inline, turbo-supercharged ALCo engine) mounted on a WDM-2 body frame. Beginning in 1975, these were initially manufactured solely by BLW, Varanasi , but later, the Parel Workshop started building them using CKD (completely-knocked-down) kits provided by DLW.
They entered service on 18 July 1995. A total of 1,164 WDG-3A units were built between 1994 and 2015 at BLW, Varanasi with a few units being produced by Diesel Loco Modernisation Works (DLMW) and Parel Workshop. It is the dedicated freight version of the highly successful WDM-2 and shares the same engine and horsepower rating with WDM-3A.
The WDM-3C were just upgraded and more powerful WDM-3As with the ALCO engine gain rebuilt to output 3300 hp. It was the first follow-up experiment after the WDM-3A to squeeze more power out of the ALCO engine, an intermediary that would later lead to the development of the WDM-3D.
The engine is classified WDM-3D though it outputs only 3300 hp and not 3400 hp as the name should suggest. They entered service in 2003. A total of 590+ WDM-3D were built at Banaras Locomotive Works (BLW), Varanasi between 2003 and 2016. The WDM-3D is one of the most successful locomotives of Indian Railways serving both passenger and freight ...
The WDM-2 locomotives from serial numbers around 17788 to 17890 were fitted with full-width short hoods with the intention of improving visibility for drivers. [27] These are unofficially termed 'Jumbos' by crew and rail fans. [28] WDM-2 #17722 and #17748 are rumored to be the prototypes of the jumbo class but differ slightly from other Jumbos.
The Indian locomotive class WDM-3 was a type of diesel-hydraulic locomotive that was developed by Henschel for Indian Railways in 1962. The model name "WDM-3" stood for broad gauge (W), Diesel (D), Mixed traffic (M) engine, 3rd generation (3). These locomotives were put into service between 1970 and 1971, and a total of eight were built between ...
[1] 44 units produced until February 2001 (Indian Railway road number 15501-15544) had dual cab forward design different from other classes of locos built by DLW (WDM-2, WDM-3A, WDG-3A and WDP-1). [2] These new locomotives have control stand similar to many electric locomotives. They are the re-geared versions of the WDM-3A. This was IR's ...
The Indian locomotive class WDG-4 (EMD GT46MAC) is a type of six-axle freight-hauling diesel–electric locomotive with AC electric transmission designed by General Motors Electro-Motive Diesel [1] in 1997–1998 for Indian Railways, where they are classed as WDG-4.