Fabrication of the first composite stringers for the vertical fin on the 787 Dreamliner, Boeing's all new commercial airplane, began Sept. 13, 2006 at the Composite Manufacturing Center (CMC) at Boeing Frederickson in Pierce County, Wash. The vertical fin is the largest major Boeing 787 Dreamliner assembly built by an internal Boeing supplier. CMC plans to deliver its first fully functional vertical fin to 787 Final Assembly in Everett, Wash., in Spring 2007. Fabrication start of the 787 vertical fin began with the push of a button by Boeing CMC employee, Don Hall, flat tape laminating machine operator. The process involves laying down composite tape to build up a charge, with the part then formed on a tool and cured in a large autoclave prior to assembly.