The Boeing 787 Dreamlineris a mid-sized, wide-body, twin-engine jet airlinerdeveloped by Boeing Commercial Airplanes. It seats 210 to 330 passengers, depending on variant. 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. Its development has involved a large-scale collaboration with numerous suppliers.
On January 28, 2005, the aircraft's initial designation 7E7 was changed to 787. Early released concept images depicted a radical design with highly curved surfaces. On April 26, 2005, a year after the launch of the program, the final and more conventional external 787 design was set.
Boeing featured its first 787 in a roll-out ceremony on July 8, 2007, at its Everett assembly factory, by which time it had become the fastest-selling wide-body airliner in history with nearly 600 orders. By December 2009, 851 Boeing 787s had been ordered by 56 customers.
The aircraft was originally scheduled to enter service in May 2008, but production had been delayed multiple times, and in August 2009, the scheduled service entry date was pushed back to the fourth quarter of 2010. The aircraft's maiden flight, originally planned for August 2007, took place on December 15, 2009 at Boeing Field in southern Seattle.
The replacement for the Sonic Cruiser project was dubbed the "7E7" (with a development code name of "Y2"). The "E" was said to stand for various things, depending upon the audience. To some, it stood for "efficiency", to others it stood for "environmentally friendly". In the end, Boeing claimed it merely stood for "Eight", after the aircraft was eventually rechristened "787". A public naming competition was also held, for which out of 500,000 votes cast online the winning title wasDreamliner.
On April 26, 2004, the Japanese airline All Nippon Airways (ANA) became the launch customer for the 787, then known as the 7E7, by announcing a firm order for 50 aircraft with deliveries to begin in late 2008. ANA's order included 30 787-3, 290–330 seat, one-class domestic aircraft, and 20 787-8, long-haul, 210–250 seat, two-class aircraft for regional international routes such as Tokyo Narita–Beijing. The aircraft will allow ANA to open new routes to mid-sized cities not previously served, such as Denver, Moscow, and New Delhi.
The 787-3 and 787-8 were to be the initial variants, with the 787-9 entering service in 2010. Boeing initially priced the 787-8 variant atUS$120 million, a low figure that surprised the industry. In 2007, the list price was $146–151.5 million for the 787-3, $157–167 million for the 787-8 and $189–200 million for the 787-9. Customer-announced orders and commitments for the 787 reached 237 aircraft during the first year of sales, with firm orders numbering 677 by the 787's premiere on July 8, 2007, and well before entry into service. This makes the 787 the fastest-selling wide-body airliner ever before entry into service.Early concept images of the 787 included rakishcockpitwindows, a dropped nose and a distinctive "shark-fin"vertical stabilizer. The final styling of the aircraft was more conservative, the fin appearing visually similar to those of aircraft currently in service. The nose and cockpit windows were also changed to a more conventional form.
After stiff competition, Boeing announced on December 16, 2003, that the 787 would be assembled in its factory in Everett, Washington.Instead of building the complete aircraft from the ground up in the traditional manner, final assembly employs just 800 to 1,200 people to join completed subassemblies and to integrate systems.Boeing has assigned its subcontractors to do more assembly themselves and deliver completed subassemblies to Boeing. Boeing would then perform final assembly. This approach results in a leaner and simpler assembly line and lower inventory.
Specifications
| Model | 787-3 | 787-8 | 787-9 |
|---|---|---|---|
| Cockpit crew | Two | ||
| Seating, typical | 290-330 317 (2-class) | 210-250 242 (3-class) | 250-290 280 (3-class) |
| Length | 186 ft (56.7 m) | 206 ft (62.8 m) | |
| Wingspan | 170 ft 6 in (52.0 m) | 197 ft 3 in (60.1 m) | |
| Wing sweepback | 32.2 degrees | ||
| Height | 55 ft 6 in (16.9 m) | ||
| Fuselage dimensions | Width: 18 ft 11 in (5.77 m) Height: 19 ft 5 in (5.92 m) | ||
| Cabin width | 18 ft (5.49 m) | ||
| Cargo capacity | 4,400 cu ft (125 m3) 28× LD3 | 5,400 cu ft (153 m3) 36× LD3 | |
| Empty weight | 223,000 lb (101,000 kg) | 242,000 lb (110,000 kg) | 254,000 lb (115,000 kg) |
| Maximum landing weight | 355,000 lb (161,000 kg) | 380,000 lb (172,000 kg) | 425,000 lb (193,000 kg) |
| Maximum take-off weight | 375,000 lb (170,000 kg) | 502,500 lb (228,000 kg) | 547,000 lb (248,000 kg) |
| Cruising speed | Mach 0.85 (903 km/h, 561 mph, 487 knots, at 40,000 ft/12,200 m) | ||
| Maximum speed | Mach 0.89 (945 km/h, 587 mph, 510 knots, at 40,000 ft/12,200 m) | ||
| Maximum range, fully loaded | 2,500–3,050nmi(4,630–5,650 km; 2,880–3,510 mi) | 7,650–8,200 nmi (14,200–15,200 km; 8,800–9,440 mi) | 8,000–8,500 nmi (14,800–15,700 km; 9,210–9,780 mi) |
| Maximum fuel capacity | 12,830 US gal (48,600 L; 10,700 imp gal) 85,964 lb | 33,528 US gal (127,000 L; 27,900 imp gal) 224,638 lb | 33,428 US gal (127,000 L; 27,800 imp gal) 224,638 lb |
| Service ceiling | 43,000 ft (13,100 m) | ||
| Engines (×2) | General Electric GEnx or Rolls-Royce Trent 1000 | ||
| Thrust (×2) | 53,000 lbf(240kN) | 64,000 lbf (280 kN) | 71,000 lbf (320 kN) |
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