Aluminum manufacturer Alcoa says advanced alloys and structural technologies would allow a next-generation single-aisle airliner to be lighter and cheaper, with lower fuel-burn, than carbon-fiber composite airframes. Launching a campaign to reestablish aluminum as the material of choice for aircraft primary structures, Alcoa says Boeing’s decision to use carbon fiber for the 787 was correct, but high production rates for single-aisles make metallic airframes lower in cost because of the ...


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