Indian locomotive class WDG-6G

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WDG-6G
Gandhidham based WDG-6G at Ghaziabad
Type and origin Power type Diesel-electric Designer GE Transportation India, Bengaluru Builder GE Transportation, Erie, Pennsylvania, Diesel Locomotive Factory, Marhowrah Model ES57ACi Build date 2019 - present Total produced 143 as of September 2024
Specifications Configuration: ​  • Commonwealth Co-Co Gauge 1,676 mm (5 ft 6 in)Broad Gauge Bogies Co-Co Fabricated Bogie Wheel diameter New: 1,092 mm (43.0 in) Condemned: 1,016 mm (40.0 in) Minimum curve 174 m (571 ft) radius Wheelbase 1,900 mm (1.9 m) Pivot centres 14,224 mm (14.224 m) Length: ​  • Over couplers 22,313 mm (22.313 m) Width 3,200 mm (3.2 m) Height 4,227 mm (4.227 m) Axle load 23 t (23,000 kg) Loco weight 138,000 kg (138 t) Fuel type Diesel Fuel capacity 8,300 L (1,800 imp gal; 2,200 US gal) Lubricant cap. 1,300 L (290 imp gal; 340 US gal) Coolant cap. 1,468 L (323 imp gal; 388 US gal) Sandbox cap. 170 L (37 imp gal; 45 US gal) Prime mover GE GEVO-16 RPM: ​  • Maximum RPM 1050 rpm Engine type V16 Diesel engine, 4-stroke engine Aspiration turbocharged Displacement 15.7L per cylinder Alternator 5GDY131B Traction motors 5GEB32B5 AC traction motors Cylinders 16 Cylinder size 250 mm × 320 mm (9.8 in × 12.6 in) Transmission diesel electric Gear ratio 85:16 MU working Yes, AAR Type Loco brake Air, Dynamic Brake Train brakes Air Compressor 178 CFM @ 145 psig Couplers CBC AAR Type-E
Performance figures Maximum speed 100 km/h (62 mph) Power output 6,000 hp (4,500 kW) Tractive effort: ​  • Starting 570 kN (130,000 lbf)  • Continuous 420 kN (94,000 lbf) Brakeforce 290 kN (65,000 lbf)
Career Operators Indian Railways Numbers 69001+ Nicknames ANGAD Locale Roza (Uttar Pradesh), Gandhidham (Gujarat), Gooty (Andhra Pradesh) Disposition Active

The Indian locomotive class WDG-6G (GE ES57ACi)^[1] is a class of diesel-electric locomotive used by the Indian Railways for freight duty. The locomotive is a higher power variant of the WDG-4G locomotive which was also designed by General Electric. The design platform is based on the GE Evolution Series and features a 4-stroke 16-cylinder fully turbocharged engine which delivers around 6,000 horsepower (4,500 kW), making it the most powerful diesel locomotive of IR (second-most being the WDG-5 aka EMD GT50AC).^[2] It is the only 6,000 HP Diesel electric locomotive at 23t/axle weight, making it the lightest locomotive in its category in the world.