The Boeing 787 Dreamliner
is a long-range, mid-size wide-body, twin-engine jet airliner developed by Boeing Commercial Airplanes. Its variants seat 210 to 290 passengers. Boeing states that it is the company's most fuel-efficient airliner and the world's first major airliner to use composite materials for most of its construction.
According to Boeing, the 787 consumes 20% less fuel than the similarly-sized 767. Its distinguishing features include a four-panel windshield, noise-reducing chevrons on its engine nacelles, and a smoother nose contour. The 787 shares a common type rating with the larger 777 twinjet, allowing qualified pilots to operate both models, due to related design features.
The aircraft's initial designation was 7E7, prior to its renaming in January 2005. The first 787 was unveiled in a roll-out ceremony on July 8, 2007, at Boeing's Everett assembly factory, by which time it had reached 677 orders; this is more orders from launch to roll-out than any previous wide-body airliner. By October 2011, the 787 program had logged 873 orders from 57 customers, with ILFC having the largest number on order.
The 787 development and production has involved a large-scale collaboration with numerous suppliers around the globe. Final assembly is at the Boeing Everett Factory in Everett, Washington. Assembly is also taking place at a new factory in North Charleston, South Carolina. Both sites will deliver 787s to airline customers. Originally planned to enter service in May 2008, the project has suffered from multiple delays. The airliner's maiden flight took place on December 15, 2009, and completed flight testing in mid-2011.
Final Federal Aviation Administration and European Aviation Safety Agency certification was received in late August 2011 and the first model was delivered in late September 2011. It entered commercial service on October 26, 2011.
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 engine nacelles with noise-reducing serrated edges. The longest-range 787 variant can fly 8,000 to 8,500 nautical miles (15,000 to 15,700 km), enough to cover the Los Angeles to Bangkok or New York City to Hong Kong routes. It has a cruising airspeed of Mach 0.85 (561 mph, 903 km/h at typical cruise altitudes).
B 787-800 compared to B737-800, 767-300 & 777-300