Boeing celebrated the 50th delivery of a B-747/8 yesterday. Deutsche Lufthansa AG, the launch customer of the passenger version, took delivery of the milestone aircraft almost one year after the first revenue flight of the 747/8 Intercontinental. It is the airline's seventh 747/8 and its 82nd 747. The 747/8 has about six million parts manufactured by more than 550 suppliers in almost 30 countries,...