The common wing design approach sacrifices fuel efficiency on the A380-800 passenger model because of its weight, but Airbus estimates that the aircraft's size and advanced technology will provide lower operating costs per passenger than the 747-400. The wings incorporate wingtip fences that extend above and below the wing surface, similar to those on the A310 and A320. These increase fuel efficiency and range by reducing induced drag. The wingtip fences also reduce wake turbulence, which endangers following aircraft."A380 Superjumbo", A Documentary broadcast on the Smithsonian Channel in the series Planes that changed the world The wings of the A380 were designed in Filton and manufactured in Broughton in the United Kingdom. The wings are then transported to the harbour of Mostyn, where they are transported by barge to Toulouse, France, for integration and final assembly with the rest of the aircraft and its components.
