An improved fabrication concept of CFRP struts is presented which are elements of the redesigned floor structure of the Airbus A380. In comparison to filament winding and resin infusion an improved prepreg manufacturing method, invented by MT Aerospace, is described. The CFRP struts are manufactured from standard aircraft prepreg materials without expensive autoclave cycles applying special tools and oven curing. With this manufacturing method excellent strut strength, stiffness properties and in combination with the optimized design a minimum part weight was achieved. MT Aerospace is completing the qualification program of the floor struts in 2008 and will start the serial production in 2009.
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