Friday, 19 October 2012

B787 Dreamliner



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.


 
Variants

Size comparison of the Boeing 787-8 (black outline) with the Boeing 777-300 (gray), 767-300 (teal), and 737-800 (blue).

Boeing has offered three variants of the 787 from the program launch in 2004. The 787-8 is the first variant produced and is to be followed by the 787-9.
787-8

The 787-8 is the base model of the 787 family, with a length of 186 feet (57 m) and a wingspan of 197 feet (60 m) and a range of 7,650 to 8,200 nautical miles (14,200 to 15,200 km), depending on seating configuration. The 787-8 seats 210 passengers in a three-class configuration.[217] The variant was the first of the 787 line to enter service, entering service in 2011. Boeing is targeting the 787-8 to replace the 767-200ER and 767-300ER, as well as expand into new non-stop markets where larger planes would not be economically viable. Two thirds of 787 orders are for the 787-8.
787-9






The 787-9 will be the first variant of the 787 with a "stretched" or lengthened fuselage, seating 250–290 in three classes with a range of 8,000 to 8,500 nautical miles (14,800 to 15,750 km). This variant differs from the 787-8 in several ways, including structural strengthening, a lengthened fuselage, a higher fuel capacity, a higher maximum take-off weight (MTOW), but with the same wingspan as the 787-8. The targeted entry into service (EIS) date, was originally planned for 2010,[220] but by October 2011 deliveries were scheduled to begin in early 2014. Boeing is targeting the 787-9 to compete with both passenger variants of the Airbus A330 and to replace their own 767-400ER. Like the 787-8, it will also open up new non-stop routes, flying more cargo and fewer passengers more efficiently than the 777-200ER or A340-300/500. The firm configuration was finalized on July 1, 2010. Artist's impression of the stretched 787-9, designed with greater range and payload capability

When first launched, the 787-9 had the same fuel capacity as the other two variants. The design differences meant higher weight and resulted in a slightly shorter range than the 787-8. After further consultation with airlines, design changes were incorporated to add a forward tank to increase its fuel capacity, so it has a longer range and a higher MTOW than the other two variants.[218] Air New Zealand is the launch customer for the 787-9.

Other variants

787-3
This variant was designed to be a 290-seat (two-class) short-range version of the 787 targeted at high-density flights, with a range of 2,500 to 3,050 nautical miles (4,650 to 5,650 km) when fully loaded. Its design used the same basic fuselage as the 787-8. The wing was derived from the 787-8, with blended winglets replacing raked wingtips. The change decreased the wingspan by roughly 25 feet (7.6 m), allowing the 787-3 to fit into more domestic gates, and in particular in Japan. This model would have been limited in its range by a reduced MTOW of 364,000 lb (165,100 kg). An artist's impression of the 787-3, which would have featured a shorter wing with winglets.

The −3 variant was designed to operate on Boeing 757-300/767-200-sized regional routes from airports with restricted gate spacing.[225] Boeing projected that the future of aviation between very large, but close cities of five million or more people may stabilize around the capacity level of the 787-3.
Forty-three 787-3s were ordered by the two Japanese airlines, but production problems on the base 787-8 model led Boeing to postpone the introduction of the 787-3 in April 2008, following the 787-9 but without a firm delivery date.[66] By January 2010, all 787-3 orders had been converted to the 787-8. At the time, it was likely the 787-3 variant would be shelved entirely following the lack of interest by potential customers caused by its being designed specifically for the Japanese market.[229] On December 13, 2010, Boeing canceled the 787-3, since it was no longer financially viable after its orders were canceled.
787-10

Boeing has stated that it is likely to develop another version, the longer 787-10, with seating capacity between 290 and 310. This proposed model is intended to compete with the planned Airbus A350-900. The 787-10 would supersede the 777-200ER in Boeing's current catalog and could also compete against the Airbus A330-300 and A340-300/500. Boeing was having discussions with potential customers about the 787-10 in 2006 and 2007. In March 2006 Mike Bair, the head of the 787 program at the time, stated that "It's not a matter of if, but when we are going to do it ... The 787-10 will be a stretched version of the 787-9 and sacrifice some range to add extra seat and cargo capacity. Boeing has not yet officially launched the −10, but it remains under consideration as of 2012.






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Maani Sharma [ MBA Aviation ]
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