During the late 1990s, Boeing considered replacement aircraft programs due to slowing sales of the 767 and 747-400. Two new aircraft were proposed. The 747X would have lengthened the 747-400 and improved efficiency, … See more

The Boeing 787 Dreamliner is a long-haul, widebody, twin-engine jetliner, designed with lightweight structures that are 80% composite by volume; Boeing lists its materials by weight as 50% composite, 20% … See more