The first four-car unit to become extended as part of the five-car London Overground investment programme was locomotive hauled in a freight train formation from London to Derby on Saturday 7 June 2014.
This marks an important project milestone of introducing additional capacity across the London Overground network later this year.
It is anticipated that the new fifth car will be inserted into the existing four-car formation within the next two weeks ahead of tests to ensure the new individual 5th car works correctly with the older four-car unit.
On completion, the newly formed five-car unit will be vigorously tested on Bombardier’s test track, and then across Network Rail infrastructure in East London.
Mike Stubbs, Director – London Overground, said: ‘It’s hugely heartening that all the hard work that has been put in by London Overground team and their various stakeholders so far, is now coming to fruition. It won’t be long now before East London Line passengers can benefit from an additional 25 per cent space on each train’.
In Derby, two additional fifth vehicles have already been manufactured with full production starting in September 2014. It is planned that the first unit will enter service by the end of 2014, with all 57 Class 378 unit modified and reintroduced to service before the end of 2015.
This milestone was achieved ahead of programme, and marks the commencement of the final stage of the roll-out of the extended trains on to the expanded network.
(This is an edited version of a press release by London Overground on 10 June 2014.)