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Boeing 787 dreamliner

The meaning of «boeing 787 dreamliner»

The Boeing 787 Dreamliner is an American wide-body jet airliner manufactured by Boeing Commercial Airplanes. After dropping its Sonic Cruiser project, Boeing announced the conventional 7E7 on January 29, 2003, focused on efficiency. The program was launched on April 26, 2004, with an order for 50 from All Nippon Airways (ANA), targeting a 2008 introduction. On July 8, 2007, the prototype was rolled out without major systems, and experienced multiple delays until its maiden flight on December 15, 2009. Type certification was received in August 2011 and the first 787-8 was delivered in September 2011 before entering commercial service on October 26, 2011, with ANA.

At launch, Boeing targeted 20% less fuel burn than replaced aircraft like the Boeing 767, carrying 200 to 300 passengers on point-to-point routes up to 8,500 nmi (16,000 km), a shift from hub-and-spoke travel. The twinjet is powered by General Electric GEnx or Rolls-Royce Trent 1000 high-bypass turbofans. It is the first airliner with an airframe primarily made of composite materials, and makes extensive use of electrical systems. Externally, it is recognizable by its four-window cockpit, raked wingtips, and noise-reducing chevrons on its engine nacelles. Development and production rely increasingly on subcontractors around the world, with final assembly at Boeing South Carolina in North Charleston, after having also been assembled in the Boeing Everett Factory in Washington until March 2021.

The initial, 186 ft (57 m) long 787-8 typically seats 242 passengers over a range of 7,355 nmi (13,620 km), with a 502,500 lb (228 t) MTOW compared to 560,000 lb (254 t) for later variants. The stretched 787-9, 206 ft (63 m) long, can fly 7,635 nmi (14,140 km) with 290 passengers; it entered service on August 7, 2014, with ANA. The further stretched 787-10, 224 ft (68 m) long, seating 330 over 6,430 nmi (11,910 km), entered service with Singapore Airlines on April 3, 2018.

Early operations encountered several problems caused by its lithium-ion batteries, culminating in fires on board. In January 2013, the US FAA grounded all 787s until it approved the revised battery design in April 2013. The 787 flies with zero fatalities and no hull losses through August 2021.[2] As of March 2020[update], the 787 had orders for 1,510 aircraft from 72 identified customers. Due to ballooning production costs, Boeing has spent $32 billion on the program; estimates for the number of aircraft sales needed to break even vary between 1,300 and 2,000.

During the late 1990s, Boeing considered replacement aircraft programs as sales of the 767 and 747-400 slowed. Two new aircraft were proposed. The 747X would have lengthened the 747-400 and improved efficiency, and the Sonic Cruiser would have achieved 15% higher speeds (approximately Mach 0.98) while burning fuel at the same rate as the 767.[3] Market interest for the 747X was tepid; however, several major American airlines, including Continental Airlines, showed initial enthusiasm for the Sonic Cruiser, although concerns about the operating cost were also expressed.[4] The global airline market was disrupted by the September 11, 2001, attacks and increased petroleum prices, making airlines more interested in efficiency than speed. The worst-affected airlines, those in the United States, had been considered the most likely customers of the Sonic Cruiser; thus the Sonic Cruiser was officially cancelled on December 20, 2002. On January 29, 2003, Boeing announced an alternative product, the 7E7, using Sonic Cruiser technology in a more conventional configuration.[5][6] The emphasis on a smaller midsize twinjet rather than a large 747-size aircraft represented a shift from hub-and-spoke theory toward the point-to-point theory,[7] in response to analysis of focus groups.[8]

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