Indian locomotive class WAP-5
The Indian locomotive class WAP-5 is a class of electric locomotives used by Indian Railways. The first ten locomotives were imported from Adtranz in Switzerland in 1995 and later manufactured by Chittaranjan Locomotive Works in India. On 3 July 2014, a WAP-5 set an Indian speed record by hauling a train between Delhi and Agra at a speed of. The locomotive has regenerative braking, flexible gear coupling, wheel-mounted disc brakes, and a potential for speed enhancement to. Braking systems include regenerative brakes, disc brakes, automatic train air brakes and a charged spring parking brake.
Locomotive sheds
'''Last updated:- January 2026'''Variants
In October 2015, a WAP-5A locomotive was rolled-out with a gear ratio of 59:35:19 capable of speeds up to for trial runs. In March 2018, a WAP-5 locomotive with an enhanced power output of was released which was later adopted as a standard based on successful trials. Some locomotives of this class are equipped with "Head On Generation" in which electric power from the locomotive's pantograph is transferred to the coaches instead of End Of Generation where a power car equipped with diesel generator is provided at either end of the train rake to supply power. The first WAP-5 locomotive with HOG was rolled by CLW in June 2018.In October 2020, two WAP-5 locomotives were given an asymmetric body design with an aerodynamic profile for one cab and a blunt profile for another cab at the opposite end, which is intended to be semi-permanently coupled with a train in a push-pull configuration for Tejas Express services. The two locomotives have a power output of and will have a maximum speed of. Two modified WAP-5 locomotives are used to haul the Amrit Bharat Express in a similar push-pull configuration.
Technical specifications
A 24 coach passenger rake can be accelerated to 110 km/h in 312.1 seconds, to 120 km/h in 402sec ; and to 130km/h in 556 sec by a WAP5. Specifications are as follows:Performance
The WAP-5 has the following capacity for ICF coaches in tonnes:| Gradient | Start | 40 km/h | 50 km/h | 60 km/h | 70 km/h | 80 km/h | 90 km/h | 100 km/h | 110 km/h | 120 km/h | 130 km/h | 140 km/h | 150 km/h | 160 km/h |
| Level | 1500+ | 1500+ | 1500+ | 1500+ | 1500+ | 1500+ | 1500+ | 1500+ | 1500+ | 1500+ | 1500+ | 1500+ | 1470 | 1230 |
| 1 in 500 | 1500+ | 1500+ | 1500+ | 1500+ | 1500+ | 1500+ | 1500+ | 1500+ | 1500+ | 1500+ | 1470 | 1250 | 1065 | 910 |
| 1 in 200 | 1500+ | 1500+ | 1500+ | 1500+ | 1500+ | 1500+ | 1500+ | 1500+ | 1350 | 1160 | 995 | 860 | 745 | 645 |
| 1 in 150 | 1500+ | 1500+ | 1500+ | 1500+ | 1500+ | 1500+ | 1500+ | 1310 | 1125 | 970 | 840 | 730 | 635 | 550 |
| 1 in 100 | 1500+ | 1500+ | 1500+ | 1500+ | 1460 | 1325 | 1125 | 970 | 840 | 730 | 635 | 555 | 480 | 420 |
| 1 in 50 | 1010 | 955 | 940 | 865 | 780 | 710 | 610 | 525 | 455 | 400 | 345 | 305 | 265 | 230 |
The average weight of an ICF coach is 55 tonnes.