Class 319: these sets were built by BREL York for the Thameslink service which commenced in 1987. There were 60 class 319/0s, followed by 26 class 319/1s from 1990 - the latter delivered with first class and a revised NSE livery. Both batches were dual voltage, and fitted with end doors for tunnel evacuation. The units passed to the Thamesllink franchise in 1997. The 319/1s were refurbished and had first class removed, forming class 319/3s for shorter distance 'Metro' trains. Oddly, 319021-060 then had first class fitted on refurbishment as class 319/4 for the longer distance 'City Flyer' workings. The first 20 moved to Connex South Central, where the dual voltage capability was useful on the West London Line Rugby - Gatwick service. Seven sets were converted to 319/2 (319214-319220) for use on fast Victoria - Brighton trains. These 20 sets moved to Southern, then FCC which was by that time operating the Thameslink franchise, bringing all 86 units together again. Partially displaced by class 377s, 387s and eventually class 700s, the 319s spread their wings. Seven have operated for London Midland from 2016, and 20 class 319/3s moved to Allerton in 2015 for service over the new North West area electrification. More should follow, and in 2016 came the news of a possible 'Bi-Mode' class 319 'Flex'. Just in time for their thirtieth anniversary in traffic.
This shot shows 319/0 319023 in St Pancras mainline station, in platforms that would later become part of the International terminus.
From EMU: pre-digital