Bombardier has other factories, which might be able to provide support in manufacturing Aventras?
Aventra (like the electrostar before it) has a different bodyshell construction to that used at other Bombardier factories for their other products apart from factories designed to assemble kits from Derby (e.g. Gautrain assembly in South Africa from a parts kit build in Derby). Hence difficult for other factories to help with final assembly - it would also increase delivery costs making it harder for Bombardier to make a profit.
Other Bombarider factories already supply parts e.g. bogie frames made and fitted out at Siegen, traction equipment at Vasteras.
The easiest way to meet the new trains promise is to retain the new 707s longer than the other units to give the breathing space for new Aventra to replace new trains (707) rather than old trains in 2021!
The max Aventra production rate is meant to be around 11 cars per week (probably not reached yet) whether that includes retasking all or some of the other production lines is unknown. E.g. Electrostar will be winding down later this year after the GWR order is finished so given the similarities this will probably happen and with no realistic LU orders retask the Movia production lines? There is also the possibility to ramp up production rates by hiring more staff for evening /night and weekend shifts as they have done in the past.
Aventra orders:
CR 66x 9car = 594 cars. delivery by end 2018 (average 5 cars per week in 2017 and 2018)
LO 45x 4car = 180 cars. first unit complete, first unit in service before May 2018.
Anglia 89x 5car and 22x 10car = 665 cars production September 2018 to Mar 2020 (Average 8 cars /week but some overlap with earlier orders in 2018).
