By Engr. O’tobi Oyetimein mNRCS (tweet:@TitoTobyPhoenix)
(Partly suggested from Bill Gates’ Business @ the Speed of Thought)
THE 787 Dreamliner
The Boeing 787 Dreamliner is a long-range, mid-size wide-body, twin-enginejet airliner developed by Airplanes. Boeing states that it is the company’s most fuel-efficient airliner and the world’s first major airliner to usecomposite materials for most of its construction. It entered commercial service on October 26, 2011.
The 787 was designed to become the first productioncomposite airliner, with the fuselage assembled in one-piece composite barrel sections instead of the multiple aluminum sheets and some 50,000 fasteners used on existing aircraft.
Boeing selected two new engine types to power the 787, the General Electric GEnx and Rolls-Royce Trent 1000. Boeing claimed the 787 would be near to 20 percent more fuel-efficient than the 767, with approximately 40 percent of the efficiency gain from the engines, plus gains from aerodynamic improvements, the increased use of lighter-weight composite materials, and advanced systems.The 787’s design features lighter-weight construction. The aircraft is 80% composite by volume. Its materials, listed by weight, are 50% composite, 20% aluminum, 15% titanium, 10% steel, and 5% other. Aluminum is used on wing and tail leading edges, titanium used mainly on engines and fasteners, with steel used in various places. External features include raked wingtips and enginenacelles with noise-reducing serrated edges.