Indian locomotive class WAP-7
From TrainSpottingWorld, for Rail fans everywhere
WAP 7 is a high speed locomotive indigenously developed by Chittaranjan Locomotive Works. It is capable of 140 to 160 km per hour and now largely used by Northern Railways. It is actually a modified version of the WAG 9 freight locomotive with modified gear ratios, set to replace the fleet of WAP 4s, the most widely used passenger locomotive now.
With a maximum speed rating of 130 km/h, the WAP-7 boasts of the most phenomenal acceleration figures while hauling mail/express trains.The WAP7 can also haul loads of 24-26 passenger coaches (1430-1550 t) at 110+ km/h per hour. It is also known to haul 16 heavyweight Air Conditioned coaches (1120t) in 1:40 inclines single-handedly.
Technical specifications[1]
| Manufacturers | CLW |
| Traction Motors | 6FRA 6068 3-phase squirrel-cage induction motors (850kW, 2180V, 1283/2484 rpm, *270/310A. Weight |
| Gear Ratio | 72:20 |
| Axle load | 20.5t |
| Wheel diameter | 1092mm new, 1016mm worn |
| Wheel base | 15700mm |
| Bogies | Co-Co, Fabricated Flexicoil Mark IV bogies; bogie wheel base 1850mm + 1850mm |
| Unsprung mass per axle | 3.984t |
| Length over buffers | 20562mm |
| Length over headstocks | 19280mm |
| Body width | 3152mmn |
| Cab length | 2434mm |
| Pantograph locked down height | 4525mm |
Notes and references
See also
- Indian Railways
- Indian Locomotives
- Indian Locomotive Class WDM-2
- Indian locomotive class WAP-4
- Indian Locomotive Class WAP-5
- Indian locomotive class WAG-9
External links
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