In preparations for production of the A330/A340, Airbus's partners invested heavily in new facilities. Filton was the site of BAe's £7 million investment in a three-storey technical centre with an extra of floor area. BAe also spent £5 million expanding the Broughton wing production plant by to accommodate a new production line. However, France saw the biggest changes with Aérospatiale starting construction of a new Fr.2.5 billion ($411 million) assembly plant, adjacent to Toulouse-Blagnac Airport, in Colomiers. By November 1988, the first pillars were erected for the new "Clément Ader" assembly hall. The assembly process, meanwhile, would feature increased automation with holes for the wing-fuselage mating process drilled by eight robots. The use of automation for this particular process saved Airbus 20% on labour costs and 5% on time.