Why The World's Original Boeing 787s Were Up To 22,000 Lbs Heavier Than The Ones Built Now

The Boeing 787 Dreamliner is now the world's best-selling widebody jet of all time, but there is a major difference between the aircraft that roll out of the factory doors today and the one that pioneered the host of innovative technologies packed inside. As the first clean-sheet design in decades, the 787 pioneered composite construction, 'bleedless' electrical systems that replaced forced air, a lower pressurized cabin altitude, and numerous other technologies that have made it so popular since its debut.