130 miles of wiring go into every new Boeing 747-8 Freighter, tucked away overhead and underfoot from the cockpit to the wheel wells.Every Boeing aircraft, from the workhorse 737 to the new 787 Dreamliner, has multiple configurations, each with its own wiring scheme. In past years, technicians used “phone books” full of diagrams to do their work. Even with laptops, the same basic problem arised: constant look-away interruptions as workers got directions and cross-checked diagrams and schematics.