Indian locomotive class WAP-6

WAP-6[1]
A former WAP-6 hauling Kaziranga Express
Type and origin Power type Electric Builder CLW Build date 1995–1998 Total produced 17 Rebuild date August, 2012 Number rebuilt 22401-22416
Specifications Configuration: ​  • UIC Co'-Co' Gauge 1,676 mm (5 ft 6 in) Bogies originally Flexicoil Mark IV Fabricated;converted to Co'-Co' Flexicoil Mark 1 cast bogies; primary and secondary wheel springs with bolsters Wheel diameter New: 1,092 mm (3 ft 7 in) Half worn: 1,055 mm (3 ft 5+1⁄2 in) Full worn: 1,016 mm (3 ft 4 in) Length 18.79 m (61 ft 7+3⁄4 in) Height 4.235 m (13 ft 10+3⁄4 in) Axle load 18,800 kg (41,400 lb) Loco weight 113,200 kg (249,600 lb) Electric system/s 25 kV 50 Hz AC, AC Overhead Current pickup(s) pantograph Traction motors Hitachi HS15250 Loco brake Air/Hand Train brakes Air Safety systems Slip control, Over voltage relay and No volt relay
Performance figures Maximum speed Intended at 140 km/h (87 mph) Restricted to 105 km/h (65 mph) Power output Max: 5,350 hp (3,990 kW) Continuous: 5,000 hp (3,700 kW) Tractive effort Starting:30.8 t (30 long tons; 34 short tons) Continuous:19 t (19 long tons; 21 short tons)
Career Operators Indian Railways Numbers 22400-22416 Locale Eastern Railway Withdrawn August, 2012/In service as WAP-4 Disposition One scrapped, remainder rebuilt

The Indian locomotive class WAP-6 was a class of 25 kV AC electric locomotives that was developed in the mid-1990s by Chittaranjan Locomotive Works for Indian Railways. The model name stands for broad gauge (W), AC Current (A), Passenger traffic (P) locomotive, 6th generation (6). They entered service in April 1996. A total of 17 WAP-6 units were built at CLW between 1995 and 1998.

The WAP-6 were intended to be the faster variant of the successful WAP-4, but failed trials and were restricted to a top speed of 105 km/h. Now all units have been converted to WAP-4 specifications. All were homed at Asansol (ASN) shed but after conversion reallocated to Howrah (HWH) shed.