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SWT mixed 455 formations on the increase?

When first introduced their refurbished class 455s they endeavoured to run them only with other refurbished units. Though this was thought to be only for "image" purposes (and if running with a unit in original condition to prevent overcrowding in one unit due to passengers preferring the accommodation in one over the other) as there is no technical nor operation reason why a refurbished 455 cannot run with an original unit. However, pairings of refurbished and original units happened and observers have noticed an increase in the number of such pairings during mid 2006.

On Monday 19th June 2006 four pairings were observed (refurbished/original): 5716+5910, 5719+5866, 5739+5854 and 5734+5860.

5739+5854 approaching Clapham Junction on the Windsor lines 5739+5854 approaching Clapham Junction on the Windsor lines

photograph by Colin Duff
5734+5850 at Waterloo having worked the 0858 Guildford to Waterloo via Epsom service 5734+5860 at Waterloo having worked the 08.58 service from Guildford via Epsom

photograph by Ian Docwra