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.