Today Boeing took a huge -- both literally and figuratively -- step in the development of the largest commercial jet in its history when the 747-8 took to the skies for the first time. Granted, the airframe's cargo version has already logged over 1,600 hours up in the air, but putting the 250-foot passenger plane with a 224-foot wingspan -- 19 feet longer and 13 feet wider than the gargantuan 747-400 -- through its first few paces without incident is no small feat. The 747-8 borrows some of the 787 Dreamliner's weight-trimming tech for better fuel efficiency and lower operational costs than older 747s and jumbo jet
