The WAP locomotives are capable of hauling trains at speeds ranging between 140 Km and 160 km per hour, railway officials said here today.
According to them, the Madurai-Chennai Pandian Express, Tirunelveli-Chennai Nellai Express, Shencotta-Chennai Pothigai Express and Tirunelveli-Tiruchi Intercity Express would be hauled by the WAP7 locomotive.
With micro-processor controlled brake, self-power generation facility, the engine could save 15 per cent on energy, the officials said.