The order for new diesel trains for London Overground's Gospel Oak to Barking Line has been formally announced by Bombardier:
Bombardier Transportation has won a second order for its next generation “Green Trains”. The contract, worth approximately 44 million euros ($65 million US), is an order for twelve 2-car BOMBARDIER next generation diesel multiple units from Angel Trains. The trains are being provided for London Overground Rail Operations Limited (LOROL) for use on the London Overground network and for Chiltern Railways.The unusual thing is the order being split with Chiltern, who London Overground's operators LOROL share a parent company with.
The press release doesn't say how the twelve trains will be split, but TfL separately mention they'll be getting eight of them. They need five or six trains in service to provide the promised 15 minute service, so eight is about right. Speaking of which, delivery of the new trains begins in Q4 2009, while the new timetable is due in December 2009. That seems a bit tight.
The trains will be owned by Angel Trains rather than TfL directly (like the electric trains are). This allows them to be easily transferred elsewhere if the GOBLIN is ever electrified.
In related news, Laing Rail is being taken over by DB, the German national railway company. Laing owns half of LOROL, and also Chiltern Railways.