On May 15, 2007 the gigantic composite wings for the all-new Boeing 787 Dreamliner were delivered to Everett. Manufactured by Mitsubishi Heavy Industries at its facility in Nagoya, Japan, each wing is 98 feet long. Standing on edge in custom-made tooling, the wings were delivered together to Boeing via the Dreamlifter, a specially modified 747-400 used to transport 787 major assemblies. The 787 is the first commercial aircraft to use composite materials as its primary structure. It is also the first Boeing aircraft featuring an all-composite wing. The wings were immediately delivered to the 787 final assembly factory. The total wingspan of a 787 is 197 feet.