With 20 percent greater fuel efficiency and 20 percent lower carbon emissions than those of its competitors, the Boeing 787 Dreamliner is one of the greatest technological advancements to land on the airline scene in decades. Comprised of 50 percent composites, this midsize “plastic” airliner has engines 60 percent quieter than the norm, as well as a range unparalleled by other jets of its class. It’s complete with large, electronically dimmable windows and other passenger amenities, not to mention numerous high-end safety features in the cockpit.