4 Alcoa is… Under a long-term agree- ment, Alcoa Howmet Castings supplies Rolls- Royce with precision castings components for nine of the company’s civil and defense aerospace engines, including the Rolls-Royce Trent 500. Alcoa Fastening Systems delivers new fasteners  and fluid-fitting designs for the high-performance F-35 Joint Strike Fighter (JSF) that are stronger, lighter, and quicker to install, join- ing other Alcoa businesses that supply forgings,  castings, plate, and airfoils to the JSF program. Airbus officially introduced its A380, the world’s largest commercial air- craft, in January 2005. Innovative Alcoa products, developed to meet unique technical challenges,  are used throughout the airliner. The ARJ21, China’s advanced regional jet, is a robust, low-cost aircraft designed for decades of service. New Alcoa alloys play an important part  in meeting fuel and  weight-saving objectives. Pratt & Whitney awarded Alcoa Fastening Systems  a life-of-program contract to supply its Weld-Stud Fastening System for  the F119 engine nozzle assembly.