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 the Boeing Everett Factory in Washington or Boeing South Carolina in North Charleston as of 2020.

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 revised battery design in April 2013. As of March 2020, 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.

Development

Background

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. 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. 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. 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, in response to analysis of focus groups.

Randy Baseler, Boeing Commercial Airplanes VP Marketing stated that airport congestion comes from large numbers of regional jets and small single-aisles, flying to destinations where a 550-seat A380 would be too large; to reduce the number of departures, smaller airplanes can increase 20% in size and airline hubs can be avoided with point-to-point transit.

In 2003, a recent addition to the Boeing board of directors, James McNerney (who would become Boeing's Chairman and CEO in 2005), supported the need for a new aircraft to regain market share from Airbus. The directors on Boeing's board, Harry Stonecipher (Boeing's President and CEO) and John McDonnell, issued an ultimatum to "develop the plane for less than 40 percent of what the 777 had cost to develop 13 years earlier, and build each plane out of the gate for less than 60 percent of the 777's unit costs in 2003", and approved a development budget estimated at US$7 billion as Boeing management claimed that they would "require subcontractors to foot the majority of costs". Boeing Commercial Airplanes president Alan Mulally, who had previously served as general manager of the 777 program, contrasted the difference in the approval process by the board between the 777 and 787 saying “In the old days, you would go to the board and ask for X amount of money, and they'd counter with Y amount of money, and then you'd settle on a number, and that's what you'd use to develop the plane. These days, you go to the board, and they say, 'Here's the budget for this airplane, and we'll be taking this piece of it off the top, and you get what's left; don't fuck up.'"

The Dreamliner logo
The Dreamliner name was announced in July 2003. This logo is painted on many 787s.

The replacement for the Sonic Cruiser project was named "7E7" (with a development code name of "Y2"). Technology from the Sonic Cruiser and 7E7 was to be used as part of Boeing's project to replace its entire airliner product line, an endeavor called the Yellowstone Project (of which the 7E7 became the first stage). Early concept images of the 7E7 included rakish cockpit windows, a dropped nose and a distinctive "shark-fin" tail. The "E" was said to stand for various things, such as "efficiency" or "environmentally friendly"; however, in the end, Boeing said that it merely stood for "Eight". In July 2003, a public naming competition was held for the 7E7, for which out of 500,000 votes cast online the winning title was Dreamliner. Other names included eLiner, Global Cruiser, and Stratoclimber.

Boeing 787 in launch customer All Nippon Airways' blue and white livery
All Nippon Airways launched the 787 program with an order for 50 aircraft in 2004.

On April 26, 2004, Japanese airline All Nippon Airways (ANA) became the launch customer for the 787, announcing a firm order for 50 aircraft with deliveries to begin in late 2008. The ANA order was initially specified as 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, and could perform routes to 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.

On October 5, 2012, Indian state carrier Air India, became the first carrier to take possession of a Dreamliner that was manufactured out of the Charleston, South Carolina Boeing plant. This was the first Boeing Dreamliner that was manufactured outside of Washington state. Boeing would go on to use both the Everett and South Carolina plants to deliver the Dreamliner.

The 787 was designed to be the first production airliner with the fuselage comprising one-piece composite barrel sections instead of the multiple aluminum sheets and some 50,000 fasteners used on existing aircraft. Boeing selected two new engines to power the 787, the Rolls-Royce Trent 1000 and General Electric GEnx. Boeing stated the 787 would be approximately 20 percent more fuel-efficient than the 767, with approximately 40 percent of the efficiency gain from the engines, plus gains from aerodynamic improvements, increased use of lighter-weight composite materials, and advanced systems. The airframe underwent extensive structural testing during its design. The 787-8 and -9 were intended to have a certified 330 minute ETOPS capability.

During the design phase, the 787 underwent extensive wind tunnel testing at Boeing's Transonic Wind Tunnel, QinetiQ's five-meter wind tunnel at Farnborough, United Kingdom, and NASA Ames Research Center's wind tunnel, as well as at the French aerodynamics research agency, ONERA. The final styling was more conservative than earlier proposals, with the fin, nose, and cockpit windows changed to a more conventional form. By 2005, customer-announced orders and commitments for the 787 reached 237 aircraft. Boeing initially priced the 787-8 variant at US$120 million, a low figure that surprised the industry. In 2007, the list price was US$146–151.5 million for the 787-3, US$157–167 million for the 787-8 and US$189–200 million for the 787-9.

Manufacturing and suppliers

On December 16, 2003, Boeing announced that the 787 would be assembled in its factory in Everett, Washington. Instead of conventionally building the aircraft from the ground up, final assembly employed 800 to 1,200 people to join completed subassemblies and to integrate systems. Boeing assigned global subcontractors to do more assembly work, delivering completed subassemblies to Boeing for final assembly. This approach was intended to result in a leaner, simpler assembly line and lower inventory, with pre-installed systems reducing final assembly time by three-quarters to three days. Subcontractors had early difficulties procuring needed parts and finishing subassemblies on schedule, leaving remaining assembly work for Boeing to complete as "traveled work." In 2010, Boeing considered in-house construction of the 787-9 tail; the tail of the 787-8 is made by Alenia. The 787 was unprofitable for some subcontractors; Alenia's parent company, Finmeccanica, had a total loss of €750 million on the project by 2013.

Assembly of "Section 41", the nose section of the Boeing 787

Subcontracted assemblies included wing and center wing box (Mitsubishi Heavy Industries, Japan; Subaru Corporation, Japan); horizontal stabilizers (Alenia Aeronautica, Italy; Korea Aerospace Industries, South Korea); fuselage sections (Global Aeronautica, Italy; Boeing, North Charleston, US; Kawasaki Heavy Industries, Japan; Spirit AeroSystems, Wichita, US; Korean Air, South Korea); passenger doors (Latécoère, France); cargo doors, access doors, and crew escape door (Saab AB, Sweden); software development (HCL Enterprise India); floor beams (TAL Manufacturing Solutions Limited, India); wiring (Labinal, France); wing-tips, flap support fairings, wheel well bulkhead, and longerons (Korean Air, South Korea); landing gear (Messier-Bugatti-Dowty, UK/France); and power distribution and management systems, air conditioning packs (Hamilton Sundstrand, Connecticut, US).

To speed up deliveries, Boeing modified four used 747-400s into 747 Dreamlifters to transport 787 wings, fuselage sections, and other smaller parts. Japanese industrial participation was key on the project. Japanese companies co-designed and built 35% of the aircraft; the first time that outside firms played a key design role on Boeing airliner wings. The Japanese government supported development with an estimated US$2 billion in loans. On April 26, 2006, Japanese manufacturer Toray Industries and Boeing signed a production agreement involving US$6 billion worth of carbon fiber, extending a 2004 contract. In May 2007, final assembly on the first 787 began at Everett.

Boeing worked to trim excess weight since assembly of the first airframe began; in late 2006, the first six 787s were stated to be overweight, with the first aircraft being 5,000 lb (2,300 kg) heavier than specified. The seventh and subsequent aircraft would be the first optimized 787-8s expected to meet all goals. Accordingly, some parts were redesigned to include more use of titanium. Early built 787s were overweight and some carriers decided to take later aircraft; in early 2015, Boeing was trying to sell 10 such aircraft. In July 2015, Reuters reported that Boeing was considering reducing the use of titanium to reduce construction costs.

The Everett Factory Hall's huge door opens as the first 787 is rolled out. Surrounding the aircraft are guests and the public.
The first public appearance of the 787 on July 8, 2007

Boeing planned a first flight by the end of August 2007 and premiered the first 787 (registered N787BA) at a rollout ceremony on July 8, 2007. The 787 had 677 orders at this time, which is more orders from launch to roll-out than any previous wide-body airliner. The major systems were not installed at the time; many parts were attached with temporary non-aerospace fasteners requiring replacement with flight fasteners later.

In September 2007, Boeing announced a three-month delay, blaming a shortage of fasteners as well as incomplete software. On October 10, 2007, a second three-month delay to the first flight and a six-month delay to first deliveries was announced due to supply chain problems, a lack of documentation from overseas suppliers, and flight guidance software delays. Less than a week later, Mike Bair, the 787 program manager was replaced. On January 16, 2008, Boeing announced a third three-month delay to the first flight of the 787, citing insufficient progress on "traveled work." On March 28, 2008, in an effort to gain more control over the supply chain, Boeing announced plans to buy Vought Aircraft Industries' interest in Global Aeronautica; a later agreement was also made to buy Vought's factory in North Charleston.

On April 9, 2008, a fourth delay was announced, shifting the maiden flight to the fourth quarter of 2008, and delaying initial deliveries by around 15 months to the third quarter of 2009. The 787-9 variant was postponed to 2012 and the 787-3 variant was to follow at a later date. On November 4, 2008, a fifth delay was announced due to incorrect fastener installation and the Boeing machinists strike, stating that the first test flight would not occur in the fourth quarter of 2008. After assessing the program schedule with suppliers, in December 2008, Boeing stated that the first flight was delayed until the second quarter of 2009. Airlines, such as United Airlines and Air India, stated their intentions to seek compensation from Boeing for the delays.

Pre-flight ground testing

As Boeing worked with its suppliers towards production, the design proceeded through a series of test goals. On August 23, 2007, a crash test involving a vertical drop of a partial composite fuselage section from about 15 ft (4.6 m) onto a 1 in (25 mm)-thick steel plate occurred in Mesa, Arizona; the results matched predictions, allowing modeling of various crash scenarios using computational analysis instead of further physical tests. While critics had expressed concerns that a composite fuselage could shatter and burn with toxic fumes during crash landings, test data indicated no greater toxicity than conventional metal airframes. The crash test was the third in a series of demonstrations conducted to match FAA requirements, including additional certification criteria due to the wide-scale use of composite materials. The 787 meets the FAA's requirement that passengers have at least as good a chance of surviving a crash landing as they would with current metal airliners.

The prototype Boeing 787 underwent taxi tests at Paine Field in November and December 2009.

On August 7, 2007, on-time certification of the Rolls-Royce Trent 1000 engine by European and US regulators was received. The alternative GE GEnx-1B engine achieved certification on March 31, 2008. On June 20, 2008, the first aircraft was powered up, for testing the electrical supply and distribution systems. A non-flightworthy static test airframe was built; on September 27, 2008, the fuselage was successfully tested at 14.9 psi (102.7 kPa) differential, which is 150 percent of the maximum pressure expected in commercial service. In December 2008, the 787's maintenance program was passed by the FAA.

On May 3, 2009, the first test 787 was moved to the flight line following extensive factory-testing, including landing gear swings, systems integration verification, and a total run-through of the first flight. On May 4, 2009, a press report indicated a 10–15% range reduction, about 6,900 nmi (12,800 km) instead of the originally promised 7,700 to 8,200 nmi (14,800–15,700 km), for early aircraft that were about 8% overweight. Substantial redesign work was expected to correct this, which would complicate increases in production rates; Boeing stated the early 787-8s would have a range of almost 8,000 nmi (15,000 km). As a result, some airlines reportedly delayed deliveries of 787s in order to take later planes that may be closer to the original estimates. Boeing expected to have the weight issues addressed by the 21st production model.

On June 15, 2009, during the Paris Air Show, Boeing said that the 787 would make its first flight within two weeks. However, on June 23, 2009, the first flight was postponed due to structural reasons. Boeing provided an updated 787 schedule on August 27, 2009, with the first flight planned to occur by the end of 2009 and deliveries to begin at the end of 2010. The company expected to write off US$2.5 billion because it considered the first three Dreamliners built unsellable and suitable only for flight tests. On October 28, 2009, Boeing selected Charleston, SC as the site for a second 787 production line, after soliciting bids from multiple states. On December 12, 2009, the first 787 completed high speed taxi tests, the last major step before flight.

Flight test program

The first 787 taking off on its maiden flight in December 2009

On December 15, 2009, Boeing conducted the 787-8 maiden flight from Paine Field in Everett, Washington, at 10:27 am PST and landed three hours later at 1:33 p.m. at Seattle's Boeing Field, after reaching 180 kn (333 km/h) and 13,200 ft (4,000 m). Originally scheduled for 5

1/2 hours, the test flight was shortened to three hours with the pilots wanting to complete the flight under visual meteorological conditions while visibility and cloud ceiling were low. The 6,800h, six-aircraft ground and flight test programme was scheduled in eight and a half months, the fastest certification campaign for a new Boeing commercial design.

The flight test program comprised six aircraft, ZA001 through ZA006, four with Rolls-Royce Trent 1000 engines and two with GE GEnx-1B64 engines. The second 787, ZA002 in All Nippon Airways livery, flew to Boeing Field on December 22, 2009, to join the flight test program; the third 787, ZA004 made its first flight on February 24, 2010, followed by ZA003 on March 14, 2010. On March 24, 2010, flutter and ground effects testing was completed, clearing the aircraft to fly its entire flight envelope. On March 28, 2010, the 787 completed the ultimate wing load test, which requires that the wings of a fully assembled aircraft be loaded to 150% of design limit load and held for 3 seconds. The wings were flexed approximately 25 ft (7.6 m) upward during the test. Unlike past aircraft, the wings were not tested to failure. On April 7, data showed the test had been a success.

On April 23, 2010, the newest 787, ZA003, arrived at the McKinley Climatic Laboratory hangar at Eglin Air Force Base, Florida, for extreme weather testing in temperatures ranging from 115 to −45 °F (46 to −43 °C), including takeoff preparations at both temperature extremes. ZA005, the fifth 787 and the first with GEnx engines, began ground engine tests in May 2010, and made its first flight on June 16, 2010. In June 2010, gaps were discovered in the horizontal stabilizers of test aircraft due to improperly installed shims; all aircraft were inspected and repaired. That same month, a 787 experienced its first in-flight lightning strike; inspections found no damage. As composites can have as little as 1/1,000th the electrical conductivity of aluminum, conductive material is added to alleviate potential risks and to meet FAA requirements. The FAA also planned requirement changes to help the 787 show compliance. In December 2019, it was reported that Boeing had removed the copper foil that formed part of the protection against lightning strikes to the wings of the aircraft; it then worked with the FAA to override concerns raised.

A 787 at the 2010 Farnborough Airshow

The 787 made its first appearance at an international air show at the Farnborough Airshow, United Kingdom, on July 18, 2010.

On August 2, 2010, a Trent 1000 engine suffered a blowout at Rolls-Royce's test facility during ground testing. This engine failure caused a reevaluation of the timeline for installing Trent 1000 engines; on August 27, 2010, Boeing stated that the first delivery to launch customer ANA would be delayed until early 2011. That same month, Boeing faced compensation claims from airlines owing to ongoing delivery delays. In September 2010, it was reported that a further two 787s might join the test fleet for a total of eight flight test aircraft. On September 10, 2010, a partial engine surge occurred in a Trent engine on ZA001 at Roswell. On October 4, 2010, the sixth 787, ZA006 joined the test program with its first flight.

On November 9, 2010, the second 787, ZA002 made an emergency landing at Laredo International Airport, Texas, after smoke and flames were detected in the main cabin during a test flight. The electrical fire caused some systems to fail before landing. Following this incident, Boeing suspended flight testing on November 10, 2010; ground testing continued. After investigation, the in-flight fire was primarily attributed to foreign object debris (FOD) that was present in the electrical bay. After electrical system and software changes, the 787 resumed flight testing on December 23, 2010.

On November 5, 2010, it was reported that some 787 deliveries would be delayed to address problems found during flight testing. In January 2011, the first 787 delivery was rescheduled to the third quarter of 2011 due to software and electrical updates following the in-flight fire. By February 24, 2011, the 787 had completed 80% of the test conditions for Rolls-Royce Trent 1000 engine and 60% of the conditions for the General Electric GEnx-1B engine. In July 2011, ANA performed a week of operations testing using a 787 in Japan. The test aircraft had flown 4,828 hours in 1,707 flights combined by August 15, 2011. During testing, the 787 visited 14 countries in Asia, Europe, North America, and South America to test in extreme climates and conditions and for route testing.

The 787-8 received FAA and EASA certification on August 21, 2011.

On August 13, 2011, certification testing of the Rolls-Royce powered 787-8 finished. The FAA and European Aviation Safety Agency certified the 787 on August 26, 2011, at a ceremony in Everett, Washington.

Service entry and early operations

Certification cleared the way for deliveries and in 2011, Boeing prepared to increase 787 production rates from two to ten aircraft per month at assembly lines in Everett and Charleston over two years. Legal difficulties clouded production at Charleston; on April 20, 2011, the National Labor Relations Board alleged that a second production line in South Carolina violated two sections of the National Labor Relations Act. In December 2011, the National Labor Relations Board dropped its lawsuit after the Machinists' union withdrew its complaint as part of a new contract with Boeing. The first 787 assembled at South Carolina was rolled out on April 27, 2012.

The first 787 was officially delivered to All Nippon Airways (ANA) on September 25, 2011, at the Boeing Everett factory. A ceremony to mark the occasion was also held the next day. On September 27, it flew to Tokyo Haneda Airport. The airline took delivery of the second 787 on October 13, 2011.

All Nippon Airways flew the first commercial flight on October 26, 2011.

On October 26, 2011, an ANA 787 flew the first commercial flight from Tokyo Narita Airport to Hong Kong International Airport. The airliner entered service some three years later than originally planned. Tickets for the flight were sold in an online auction; the highest bidder had paid $34,000 for a seat. An ANA 787 flew its first long-haul flight to Europe on January 21, 2012 from Haneda to Frankfurt Airport.

On December 6, 2011, test aircraft ZA006 (sixth 787), powered by General Electric GEnx engines, flew 10,710 nmi (19,830 km) non-stop from Boeing Field eastward to Shahjalal International Airport in Dhaka, Bangladesh, setting a new world distance record for aircraft in the 787's weight class, which is between 440,000 and 550,000 lb (200,000 and 250,000 kg). This flight surpassed the previous record of 9,127 nautical miles (16,903 km), set in 2002 by an Airbus A330. The Dreamliner then continued eastbound from Dhaka to return to Boeing Field, setting a world-circling speed record of 42 hours, 27 minutes. In December 2011, Boeing started a six-month promotion 787 world tour, visiting various cities in China, Africa, the Middle East, Europe, United States, and others. In April 2012, an ANA 787 made a delivery flight from Boeing Field to Haneda Airport partially using biofuel from cooking oil.

ANA surveyed 800 passengers who flew the 787 from Tokyo to Frankfurt: expectations were surpassed for 90% of passengers; features that met or exceeded expectations included air quality and cabin pressure (90% of passengers), cabin ambiance (92% of passengers), higher cabin humidity levels (80% of passengers), headroom (40% of passengers) and the larger windows (90% of passengers). 25% said they would go out of their way to again fly on the 787.

United Airlines was the North American launch customer for all three 787 variants.

After its first six months of service, Rolls-Royce powered ANA aircraft were burning around 21% less fuel than the replaced 767-300ER on international flights, slightly better than the 20% originally expected, and 15–20% on domestic routes, while GE-powered Japan Airlines aircraft were potentially slightly better. Other 787 operators have reported similar fuel savings, ranging from 20 to 22% compared with the 767-300ER. An analysis by consultant AirInsight concluded that United Airlines' 787s achieved an operating cost per seat that was 6% lower than the Airbus A330. In November 2017, International Airlines Group chief Willie Walsh said that for its budget carrier Level the lower cost of ownership of its two A330-200 more than offsets the 13,000 lb (6 t) higher fuel burn ($3,500 on a Barcelona-Los Angeles flight). It would introduce three more A330s as there were not enough 787 pilots.

Early operators discovered that if the APS5000 Auxiliary power unit was shut down with the inlet door closed, heat continued to build up in the tail compartment and cause the rotor shaft to bow. It could take up to two hours for the shaft to straighten again. This was particularly acute on short haul flights as there was insufficient time to allow the unit to cool before a restart was needed. Procedures were modified and the APU was later redesigned to address the issue.

On September 15, 2012, the NTSB requested the grounding of certain 787s due to GE engine failures; GE believed the production problem had been fixed by that time. In December 2012, responding to unhappiness within the airline industry at the continuing issues affecting the aircraft, Boeing CEO James McNerney stated that he regretted the impact on passengers: he went on to say that the 787's issues had been no greater than those experienced with the introduction of other Boeing models such as the 777.

In March 2014, Mitsubishi Heavy Industries informed Boeing of a new problem that was caused by a change in manufacturing processes. Employees did not fill gaps with shims to connect wing rib aluminum shear ties to the carbon composite wing panels; the tightened fasteners, without shims, cause excessive stress that creates hairline cracks in the wings, which could enlarge and cause further damage. Forty-two aircraft awaiting delivery were affected, and each one required 1–2 weeks to inspect and repair. However, Boeing did not expect this problem to affect the overall delivery schedule, even if some airplanes were delivered late.

Dispatch reliability is an industry standard measure of the rate of departure from the gate with no more than 15 minutes delay due to technical issues. The 787-8 started out with a ~96% operational reliability, increasing to ~98.5% in April 2015. Daily utilization increased from five hours in 2013 to twelve hours in 2014. Dispatch reliability grew to 99.3% in 2017.

Airlines have often assigned the 787 to routes previously flown by larger aircraft that could not return a profit. For example, Air Canada offered a Toronto to New Delhi route, first utilizing a Lockheed L1011, then a Boeing 747, then an Airbus A340, but none of these types were efficient enough to generate profit. The airline operated the route profitably with a 787-9, and credits the right number of seats and greater fuel efficiency for this success.

Up to June 30, 2017, after 565 units were delivered since 2011: 60% -8 (340) and 40% -9 (225), the airports with most 787 departures are Haneda airport with 304 weekly, Narita with 276 and Doha Airport with 265. By the end of 2017, there were 39 airlines operating the 787 on 983 routes with an average length of 5,282 km (2,852 nmi), including 163 new routes (17%). As of 24 March 2018, the 787's longest route is Qantas' Perth-London Heathrow, a distance of 14,499 km (7,829 nmi) and the second-longest regular scheduled flight behind Qatar Airways' 14,529 km (7,845 nmi) route from Doha to Auckland, flown with a Boeing 777-200LR. In March 2020, Air Tahiti Nui executed a record commercial flight of 9,765 mi (8,486 nmi), from Papeete, Tahiti to Paris, on a route that would typically refuel at Los Angeles but was able to fly the Boeing 787-9 non-stop because it was "nowhere near full" due to the COVID-19 pandemic.

Market and costs

A defunct subsidiary of Norwegian Air Shuttle, Norwegian Long Haul operated the 787 as a long-haul low cost carrier.

The 787 Dreamliner program has reportedly cost Boeing $32 billion. In 2013, the 787 program was expected to be profitable after 1,100 aircraft have been sold. At the end of 2013, the cost of producing a 787 exceeded the purchase price. Boeing's accounting method books sales immediately and distributes estimated production costs over ten years for the 1,300 aircraft it expects to deliver during that time. JPMorgan Chase analyst Joseph Nadol estimated the program's cash loss to be $45 million per airplane, decreasing as the program moves forward. The actual cash flow reflects Boeing collecting most of the purchase price upon delivery; Boeing expects deferred costs to total $25 billion before the company begins to break even on production; the comparable number for the Boeing 777, adjusted for inflation, is $3.7 billion.

Boeing lost $30 million per 787 delivered in the first quarter of 2015, although Boeing planned to break even by the end of the year. The accumulated losses for the 787 totalled almost $27 billion by May 2015. The cost of producing the fuselage may increase because of a tentative deal reached with Spirit Aerosystems of Wichita, Kansas, wherein severe price cuts demanded by Boeing would be eased, in return for a comprehensive agreement that lowers the cost of fuselages for other jetliners that Spirit helps Boeing manufacture.

In the second quarter of 2015, Boeing lost $25 million on each 787 delivered but was planning to break even per plane before the year end. After that Boeing hopes to build 900 Dreamliners over six years at an average profit of more than $35 million each. But with deferred costs peaking in 2016 at $33 billion, Leeham analyst Bjorn Fehrm believes Boeing can't make an overall profit on the program. Ted Piepenbrock, an academic affiliated with the MIT and the University of Oxford, projects losses decreasing through the first 700 airliners, forecast the cumulative deferred costs to peak beyond $34 billion and its model most favorable to Boeing projects a program loss of $5 billion after delivering 2,000 Dreamliners. Boeing's original development investment, estimated at least at a further $20 billion, isn't included in these costs.

To recoup the deferred costs and earn its goal of "low single digit" overall profit margin, Boeing has to make an average profit of more than $50 million on the final 205 airplanes of the accounting block to be delivered from 2020: a profit margin of more than 30% while the mature Boeing 737 and 777 programs have 20% to 25% margins. Boeing is reaching it through a larger proportion of the 20% to 40% higher price -9/10s, costing only 5% to 10% more than the -8 with lower production costs from reliability and producibility investments and the expected experience curve. Former Douglas Aircraft chief economist Adam Pilarski notes that two assembly sites slows the experience curve. Boeing assumed a faster improvement than on previous programs which has not happened. Airbus competition with the A350 and the launch of the A330neo put strong pressure on the 787 pricing.

A Jetstar 787-8 with a Qantas A330-200 in background, 2018

On July 21, 2016, Boeing reported charges of $847 million against two flight-test 787s built in 2009. Boeing had planned to refurbish and sell them, but instead wrote them off as research and development expense. In 2017, Boeing's Jim Albaugh said that the requested return on net assets (RONA) led to outsourcing systems reducing investment, but improving RONA had to be balanced against the risk of loss of control. From 2019, Boeing was to build 14 787s per month (168 per year), helping to offset the $28 billion in deferred production costs accumulated through 2015, and will add 100 aircraft to the current accounting block of 1,300 at the end of the 2017 third quarter. In 2019, list price for a 787-8 was US$248.3M, $292.5M for a 787-9 and $338.4M for a 787-10.

The valuation for a new 787-9 is $145 million in 2018, up from $135 million in 2014, but it may have been sold for $110–15 million to prevent A330neo sales while an A330-900 is worth $115 million. In February 2018, Boeing priced six 787-9s for less than $100–115m each to Hawaiian Airlines, close to their production cost of $80–90m, to overcome its A330-800 order. By late 2018, deferred production costs were reduced from a peak of $27.6 billion in early 2016 to $23.5 billion as assembly efficiency improved and the 800th production started.

Production rate

By 2014, Boeing planned to improve financial return by reorganizing the production line, renegotiating contracts with suppliers and labor unions, and increasing the 787 production rate, stepwise, to 12 airplanes per month by the end of 2016 and 14 airplanes per month by the end of the decade. By April 2015, the production rate was 10 per month;

From late 2020, production rate is to be reduced from 14 to 12 airplanes per month due to the China–United States trade war. Production could be trimmed to 10 monthly as demand for wide-body aircraft falters. On October 1, 2020, Boeing announced the 787 will be produced only in North Charleston from mid-2021 due to the impact of the COVID-19 pandemic on aviation, as the production rate fall to six per month. In December, the monthly rate was further reduced to five.

Quality-control issues

In late August 2020, Boeing grounded eight 787s operated by United Airlines, Air Canada, All Nippon Airways, Singapore Airlines, Air Europa, Norwegian Air Shuttle and Etihad Airways due to improper fuselage shimming and inner skin surfacing at Boeing South Carolina. In typical service, these defects could result in premature material fatigue and structural failure under limit loads. Boeing identified the defective shims in August 2019. The groundings came a year after The New York Times reported on quality-control issues for the 787 at the North Charleston plant.

On September 7, 2020, The Wall Street Journal reported the FAA was investigating quality-control lapses at Boeing dating back to the introduction of the 787 in 2011. Boeing informed the FAA "nonconforming" sections of the rear fuselage did not meet engineering standards, and the high-level FAA review is considering requiring additional inspections for as many as about 900 of the roughly 1,000 Dreamliners delivered since 2011. Boeing's Quality Management System (QMS) failed to detect either the shim or skin surface issue, adding to the FAA inquiry. Boeing previously argued QMS justified a reduction of 900 quality inspectors.

On September 8, 2020, Boeing said it identified a third quality-control issue with the 787's horizontal stabilizers, affecting as many as 893 Dreamliners. Workers in Salt Lake City clamped portions of the tail section too tightly, which could lead to premature material fatigue. Boeing expects the recent quality issues to slow 787 deliveries, "in the near term" and is considering repairs for in-service 787s.

On September 10, 2020, Reuters cited KOMO News Radio reporting Boeing engineers complained six months prior about depressions in the 787's vertical tail fin, affecting hundreds of planes or the vast majority of the fleet. Workers in Charleston and Everett improperly discarded shims before the final installation of fasteners, which could lead to structural failure under limit loads. Pending discussions with the FAA, Boeing expects a one-time inspection during regularly scheduled maintenance to address the issue.

As of January 2021, Boeing had halted deliveries of the jet in order to complete the inspection relating to the ongoing quality control issues.

Design

Overview

Planform view of a 787-9 showing its 9.6 wing aspect ratio and 32° wing sweep
Front view of a 787, the fuselage is 19 ft (5.8 m) wide and 19½ ft (5.94 m) high while the fan has a 9.3 ft (2.8 m) diameter

The Boeing 787 Dreamliner is a long-haul, widebody, twin-engine jetliner, which features light-weight construction. The aircraft is 80% composite by volume; Boeing lists its materials by weight as 50% composite, 20% aluminum, 15% titanium, 10% steel, and 5% other. Aluminum has been used throughout the wing and tail leading edges, titanium is predominantly present within the elements of the engines and fasteners, while various individual components are composed of steel.

External features include a smooth nose contour, raked wingtips and engine nacelles with noise-reducing serrated edges (chevrons). The longest-range 787 variant can fly up to 7,635 nmi (14,140 km), or the even longer Qantas QF 9 flight between Perth Airport and London–Heathrow, over 7,828 nmi (14,497 km). Its cruising airspeed is Mach 0.85 (488 kn; 903 km/h). The aircraft has a design life of 44,000 flight cycles.

Flight systems

Among 787 flight systems, a key change from traditional airliners is the electrical architecture. The architecture is bleedless and replaces bleed air with electrically powered compressors and four of six hydraulic power sources with electrically driven pumps, while completely eliminating pneumatics and hydraulics from some subsystems, e.g. engine starters and brakes. Boeing says that this system extracts 35% less power from the engines, allowing increased thrust and improved fuel efficiency. The total available on-board electrical power is 1.45 megawatts, which is five times the power available on conventional pneumatic airliners; the most notable electrically powered systems include engine start, cabin pressurization, horizontal-stabilizer trim, and wheel brakes. Wing ice protection is another new system; it uses electro-thermal heater mats on the wing slats instead of traditional hot bleed air. An active gust alleviation system, similar to the system used on the B-2 bomber, improves ride quality during turbulence.

The Boeing 787 flight deck has fly-by-wire controls

The 787 has a "fly-by-wire" control system similar in architecture to that of the Boeing 777. The flight deck features multi-function LCDs, which use an industry-standard graphical user interface widget toolkit (Cockpit Display System Interfaces to User Systems / ARINC 661). The 787 flight deck includes two head-up displays (HUDs) as a standard feature. Like other Boeing airliners, the 787 uses a yoke (as opposed to a side-stick). Under consideration is future integration of forward-looking infrared into the HUD for thermal sensing, allowing pilots to "see" through clouds. Lockheed Martin's Orion spacecraft will use a glass cockpit derived from Honeywell International's 787 flight deck systems.

Honeywell and Rockwell Collins provide flight control, guidance, and other avionics systems, including standard dual head-up guidance systems, Thales supplies the integrated standby flight display and power management, while Meggitt/Securaplane provides the auxiliary power unit (APU) starting system, electrical power-conversion system, and battery-control system with lithium cobalt oxide (LiCoO2) batteries by GS Yuasa. One of the two batteries weighs 28.5 kg and is rated 29.6 V, 76 Ah, giving 2.2 kWh. Battery charging is controlled by four independent systems to prevent overcharging, following early lab testing. The battery systems were the focus of a regulatory investigation due to multiple lithium battery fires, which led to grounding of the 787 fleet starting in January 2013.

A version of Ethernet (Avionics Full-Duplex Switched Ethernet (AFDX) / ARINC 664) transmits data between the flight deck and aircraft systems. The control, navigation, and communication systems are networked with the passenger cabin's in-flight internet systems. In January 2008, FAA concerns were reported regarding possible passenger access to the 787's computer networks; Boeing has stated that various protective hardware and software solutions are employed, including air gaps to physically separate the networks, and firewalls for software separation. These measures prevent data transfer from the passenger internet system to the maintenance or navigation systems.

The -9/10 hybrid laminar flow control (HLFC) system delays the critical transition from laminar to turbulent flow as far back as possible on the vertical tail by passive suction from leading-edge holes to mid-fin low-pressure doors, but was dropped from the tailplane due to lower benefits than the extra complexity and cost.

Composite materials

Disassembled composite fuselage section of the Boeing 787

The 787 is the first major commercial airplane to have a composite fuselage, composite wings, and use composites in most other airframe components. Each 787 contains approximately 77,000 pounds (35 metric tons) of carbon fiber reinforced polymer (CFRP), made with 51,000 lb (23 t) of carbon fiber. Carbon fiber composites have a higher strength-to-weight ratio than conventional aircraft materials, and help make the 787 a lighter aircraft. Composites are used on fuselage, wings, tail, doors, and interior. Boeing had built and tested the first commercial aircraft composite section while studying the proposed Sonic Cruiser in the early 2000s. The first carbon/epoxy primary structure was put into service on the Boeing 737 Classic horizontal tail in 1984, and the largest use of composite structures is 60 percent in the Boeing–Sikorsky RAH-66 Comanche.

Carbon fiber, unlike metal, does not visibly show cracks and fatigue, prompting concerns about the safety risks of widespread use of the material; the rival Airbus A350 XWB uses composite panels on a frame, a more conventional approach, which its contractors regarded as less risky. Although fired in 2006, Boeing engineer Vince Weldon complained to management, and later to the public: the composite fuselage was unsafe compared to conventional aluminum designs, and in a crash, was more likely to "shatter too easily and burn with toxic fumes".

In addition, a potential issue is the porous nature of composite materials: collected moisture expanding with altitude can cause delamination. Boeing responded that composites have been used on wings and other passenger aircraft parts for many years without incident, and special defect detection procedures will be instituted for the 787 to detect any potential hidden damage.

In 2006, Boeing launched the 787 GoldCare program. This is an optional, comprehensive life-cycle management service, whereby aircraft in the program are routinely monitored and repaired, as needed. Although the first program of its kind from Boeing, post-sale protection programs are not new; such programs are usually offered by third party service centers. Boeing is also designing and testing composite hardware so inspections are mainly visual. This reduces the need for ultrasonic and other non-visual inspection methods, saving time and money.

Engines

The 787 is powered by two engines; these engines use all-electrical bleedless systems, eliminating the superheated air conduits normally used for aircraft power, de-icing, and other functions. As part of its "Quiet Technology Demonstrator 2" project, Boeing adopted several engine noise-reducing technologies for the 787. These include an air inlet containing sound-absorbing materials and exhaust duct cover with a chevron-toothed pattern on the rim for a quieter mixing of exhaust and outside air. Boeing expects these developments to make the 787 significantly quieter both inside and out. The noise-reducing measures prevent sounds above 85 decibels from leaving airport boundaries.

The two different engine models compatible with the 787 use a standard electrical interface to allow an aircraft to be fitted with either Rolls-Royce Trent 1000 or General Electric GEnx-1B engines. This interchangeability aims to save time and cost when changing engine types; while previous aircraft could exchange engines for those of a different manufacturer, the high cost and time required made it rare. In 2006, Boeing addressed reports of an extended change period by stating that the 787 engine swap was intended to take 24 hours.

In 2016, Rolls-Royce began flight testing its new Trent 1000 TEN engine. It has a new compressor system based on the compressor in Rolls-Royce Trent XWB engine and a new turbine design for extra thrust, up to 78,000 lbf (350 kN). Rolls-Royce plans to offer the TEN on the 787-8, -9 and -10. In early 2020, of 1484 orders, 905 selected GE (61.0%), 476 selected RR (32.1%) and 103 were undecided (6.90%).

Interior

Most airlines have a nine-abreast (3–3–3) economy class, although some select an eight-abreast lower density
Airliner cabin with pod-like seats arranged in pairs or alone against the widewalls.
Qatar Airways 787-8 business class cabin in 1-2-1 layout

The 787-8 is designed to typically seat 234 passengers in a three-class setup, 240 in two-class domestic configuration, and 296 passengers in a high-density economy arrangement. Seat rows can be arranged in four to seven abreast in first or business, e.g. 1–⁠2–⁠1, 2–⁠2–⁠2, or 2–⁠3–⁠2. Eight or nine abreast are options in economy, e.g. 3–⁠2–⁠3, 2–⁠4–⁠2, or 3–⁠3–⁠3. Typical seat room ranges from 46 to 61 in (120 to 150 cm) pitch in first, 36 to 39 in (91 to 99 cm) in business, and 32 to 34 in (81 to 86 cm) in economy.

Cabin interior width is approximately 18 feet (550 cm) at armrest level. The Dreamliner's cabin width is 15 inches (38 cm) more than that of the Airbus A330 and A340, 5 inches (13 cm) less than the A350, and 16 in (41 cm) less than the 777. The 787's economy seats can be up to 17.5 in (44.4 cm) wide for nine-abreast seating and up to 19 inches (48 cm) wide for eight-abreast seating arrangements. Most airlines are selecting the nine-abreast (3–3–3) configuration. The 787's nine-abreast seating for economy provides passengers less space, particularly across the hips and shoulders, than any other jet airliner. Some observers recommended passengers avoid flying 787s with nine-abreast seating, although others suggested that the 787 is more comfortable than other airliners.

The 787's cabin windows are larger than any other civil air transport in-service or in development, with dimensions of 10.7 by 18.4 in (27 by 47 cm),[contradictory] and a higher eye level so passengers can maintain a view of the horizon. The composite fuselage permits larger windows without the need for structural reinforcement. Instead of plastic window shades, the windows use electrochromism-based smart glass (supplied by PPG Industries) allowing flight attendants and passengers to adjust five levels of sunlight and visibility to their liking, reducing cabin glare while maintaining a view to the outside world, but the most opaque setting still has some transparency. The lavatory, however, has a traditional sunshade.

The 787's cabin features light-emitting diodes (LEDs) as standard equipment, allowing the aircraft to be entirely "bulbless". LED lights have previously been an option on the Boeing 777 and Airbus aircraft. The system has three-color LEDs plus a white LED. The 787 interior was designed to better accommodate persons with mobility, sensory, and cognitive disabilities. For example, a 56 by 57 in (140 by 140 cm) convertible lavatory includes a movable center wall that allows two separate lavatories to become one large, wheelchair-accessible facility.

The 787's internal cabin pressure is the equivalent of 6,000 feet (1,800 m) altitude resulting in a higher pressure than for the 8,000 feet (2,400 m) altitude of older conventional aircraft. According to Boeing, in a joint study with Oklahoma State University, this will significantly improve passenger comfort. Cabin air pressurization is provided by electrically driven compressors, rather than traditional engine-bleed air, thereby eliminating the need to cool heated air before it enters the cabin. The cabin's humidity is programmable based on the number of passengers carried and allows 15% humidity settings instead of the 4% found in previous aircraft. The composite fuselage avoids metal fatigue issues associated with higher cabin pressure and eliminates the risk of corrosion from higher humidity levels. The cabin air-conditioning system improves air quality by removing ozone from outside air and, besides standard HEPA filters, which remove airborne particles, uses a gaseous filtration system to remove odors, irritants, and gaseous contaminants, as well as particulates like viruses, bacteria and allergens.

Variants

Diagrams of outlines of three different aircraft imposed over one another
Size comparison of the Boeing
  787-8,
  777-300,
  767-300, and

The shortest Dreamliner variant, the 787-8 was the first variant to fly in December 2009, then the longer 787-9 in September 2013, followed by the longest variant, the 787-10, in March 2017. These variants are called B788, B789, and B78X, respectively in the List of ICAO aircraft type designators. The short-range 787-3 was cancelled in 2010.

787-8

The initial 787-8 is the shortest variant at 186 ft (56.7 m)

With a typical capacity of 242 passengers and a range of 7,355 nautical miles (13,621 km; 8,464 mi), the -8 is the base model of the 787 family and was the first to enter service in 2011. The 787-8 is targeted to replace the Boeing 767-200ER and -300ER, as well as expand into new non-stop markets where larger planes would not be economically viable. As of October 2019, approximately 29% of 787 orders are for the 787-8 with 366 delivered. In 2018, Boeing said it would change the -8 manufacturing to raise its commonality with the -9 above the current 30% to be more like the 95% commonality between the -9 and -10, as it will benefit from learning from those. When it was launched, a new B787-8 was to cost only slightly more than the B767-300ER, valued new for $85 million at its 1990s peak, but it ended being 20% more costly.

787-9

Keeping the same wingspan as the 787-8, the 787-9 is a lengthened and strengthened variant with a 20 feet (6.1 m) longer fuselage and a 54,500 pounds (24,700 kg) higher maximum take-off weight (MTOW), seating 280 passengers in a typical three-class arrangement over a 7,635 nautical miles (8,786 mi; 14,140 km) range. It features active boundary-layer control on the tail surfaces, reducing drag.

In 2005, the entry into service (EIS) was planned for 2010. The firm configuration was finalized on July 1, 2010. By October 2011, deliveries were scheduled to begin in 2014.

The longer 787-9 (206 ft, 62.8 m) was introduced by Air New Zealand on August 9, 2014

The prototype 787-9 made its maiden flight from Paine Field on September 17, 2013. By November 8, 2013, it had flown 141 hours. A 787-9 was on static display at the 2014 Farnborough Air Show prior to first delivery. On July 8, 2014, Launch customer Air New Zealand took its first 787-9, in a distinctive black livery in a ceremony at Paine Field. Its first commercial flight was from Auckland to Sydney on August 9, 2014.

The 787-9 was to begin commercial service with All Nippon Airways on August 7, 2014. United Airlines was to start the longest nonstop scheduled 787 service between Los Angeles and Melbourne in October 2014. Air China started a 787-9 route between Beijing and Chengdu in May 2016. As of October 2019, 57% of all 787 orders are for the 787-9, with 498 deliveries. A 2014 787-9 leased for $1.05 million per month, and fell to $925,000 per month in 2018.

The 20-ft stretch was achieved by adding a 10-ft (five-frame) extension forward and aft. The 787-8 and 787-9 have 50% commonality: the wing, fuselage and systems of the 787-8 had required radical revision to achieve the payload-range goals of the 787-9. Following a major revamp of the original 787-8 wing, the latest configuration for the 787-9 and -10 is the fourth design evolution.

On March 25, 2018, a Qantas 787-9 completed the first scheduled non-stop flight between Australia and the UK flying seventeen hours from Perth to London Heathrow. On October 20, 2019, a Qantas 787-9 was flight tested from New York to Sydney with a restricted payload. A team of researchers monitored passengers and crew to investigate wellness and performance on long flights.

787-10

Rollout of 787-10 on February 17, 2017. The -10 is the longest 787 variant at 224 ft (68.3 m).

In December 2005, pushed by the interest of Emirates and Qantas, Boeing was studying the possibility of stretching the 787-9 further to seat 290 to 310 passengers. This variant would be similar to the capacity of the Airbus A350-900 and Boeing 777-200ER. Customer discussions were continuing in early 2006. Mike Bair, Boeing's vice president and general manager for the 787 development program at the time, said it was easier to proceed with the 787-10 development after other customers followed Emirates' request.

On May 30, 2013, Singapore Airlines became the launch customer by stating it would order 30 787-10s (provided Boeing launched the program), to be delivered in 2018–2019. On June 18, 2013, Boeing officially launched the 787-10 at the Paris Air Show, with orders or commitments for 102 aircraft from Air Lease Corporation (30), Singapore Airlines (30), United Airlines (20), British Airways (12), and GE Capital Aviation Services (10). As of August 2020 the aircraft has 211 orders out of which 58 have been delivered, 7 of which are stored.

The variant was envisioned as replacing Boeing 777-200, Airbus A330 and Airbus A340 aircraft. The -10 is to compete against the Airbus A350-900, and offer better economics than the A350 on shorter routes, according to Boeing. Steven Udvar-Hazy said "If it's identically configured, the -10 has a little bit of an edge on the -900", but smaller than Boeing's estimate of 10 percent. The 787-10 is to be 224 ft (68 m) long, seat 330 passengers in a two-class cabin configuration, and have a range of 6,430 nmi (11,910 km; 7,400 mi).

Final assembly of the 787-10 is only in Charleston, South Carolina

Boeing completed detailed design for the -10 on December 2, 2015. Major assembly began in March 2016. Designers targeted 90% commonality between the 787-9 and -10 and achieved 95%; the 18-ft stretch was reached by adding 10 ft forward of the wing and 8 ft aft, and by strengthening the fuselage for bending loads in the center wingbox. Because of the length and additional tail strike protection needed, a semilevered landing gear enables rotation over the aft wheels rather than at the bogie center, like the 777-300ER, and the cabin air conditioning system has 15% more capacity. The first and third -10 test-platforms incorporate Rolls-Royce's new Trent 1000 TEN engines, while the second is powered by the competing General Electric GEnx-1B engine.

Major fuselage parts were received for final assembly on November 30, 2016. The 787-10's mid-fuselage sections are too large for transport to Everett, Washington and it is built only in Charleston, South Carolina; it is the first Boeing airliner assembled exclusively there. The first -10 was rolled out on February 17, 2017. The variant's first flight took place on March 31, 2017 and lasted 4 hours and 48 minutes.

The first test 787-10 aircraft is engaged in flight envelope expansion work and the second joined the program in early May 2017, while the third with a passenger cabin interior to test the uprated environmental control system and Trent fuel-burn performance was scheduled to join in June. The -10 was scheduled to appear at the 2017 Paris Air Show. The second -10 is being used to prove the GE Aviation engines and the third made its first flight on June 8, 2017, when the flight-test programme was 30% complete. Boeing finished final assembly and painting of the first production 787-10 in October 2017, before its certification. The flight tests are mainly ahead of schedule, with the last stages focused on fuel burn validation and revised flight control software, the phase should be completed in December 2017 and could advance first deliveries earlier than expected in 2018.

The 787-10 began commercial service on April 3, 2018 with Singapore Airlines

At the start of the November 2017 Dubai Air Show the 787-10 had 171 orders; Emirates committed to 40 787-10s, in two- and three-class cabins for 240 to 330 passengers, to be delivered from 2022 and with conversion rights to the smaller 787-9. These aircraft are adapted for 7–8.5 hour missions, in a 280-seat three–class layout. Emirates' Tim Clark was doubtful it would meet its MTOW for the payload-range required with initial 70,000–72,000 lbf (310–320 kN) thrust engines, but with the current 76,000 lbf (340 kN) turbofans and the -9 early margins gave the -10 "stellar economics". By early 2019, Emirates was considering canceling its 787-10 order, due to engine margins being insufficient for the hot Dubai weather, in favor of the A350 (which would also replace its last A380 order). The order was no longer mentioned in Emirates' May 2019 annual report, whereas it was listed as "authorised and not contracted" in the previous report. At the 2019 Dubai Air Show, Emirates placed an order for 30 787-9 aircraft rather than the 787-10.

In January 2018, the -10 was certified by the FAA after testing for 900 flight hours. Boeing received its production certificate on February 15. It was first delivered to launch customer Singapore Airlines on March 25, 2018. Fitted with 337 seats, 36 in business and 301 in economy, the -10 began commercial service on April 3, 2018.

The 8.7% fuselage stretch from the -9 to the -10 likely increased empty weight at a lower rate than the 7.4% growth from the -8 to the -9 due to the 10.7% stretch. Software increases the tailplane effectiveness to avoid modifying it. With the same wing but a longer fuselage than the -9, the flutter margin was reduced for the -10 but to avoid stiffening the wing or adding wingtip counterweights for commonality, software oscillates the elevators in the flaps up vertical mode suppression system (F0VMS), similar to the vertical gust load alleviation system.

To replace Air New Zealand's 777-200 fleet, Boeing wants to increase the 787-10 MTOW by over 13,000 lb (6 t) to 572,000 lb (260 t) with some reinforcements and updated fuel systems. This would allow more range, like the 5,600 nmi (10,400 km) trip from Auckland to Los Angeles with no passenger restrictions and some cargo. The increased performance could trickle down to the 787-9, allowing Auckland to New York flights.

BBJ 787

Lufthansa Technik model of 787 VIP interior

The 787-8 and -9 are offered as Boeing Business Jets, the first offering 2,415 sq ft (224.4 m2) of floor space and a range of 9,945 nmi (18,418 km), the other 2,775 sq ft (257,8 m2) and 9,485 nmi (17,566 km), both with 25 passengers. Through June 2018, fifteen have been ordered, twelve delivered and four were in service.

Other proposals

Although with no set date, Boeing expects to build, possibly in the 2018–2023 timeframe, a 787 freighter version. Boeing also reportedly considered a 787 variant as a candidate to replace the 747-based Boeing VC-25 presidential transport in 2009. In 2018, two Boeing 747-8 aircraft were ordered to replace the two older 747-200-based VC-25A Air Force One aircraft.

787-3

The 787-3 would feature a reduced wingspan with wingtip devices

The 787-3 would have carried 290–330 passengers in two-class over 2,500–3,050 nmi (4,630–5,650 km) range, limited by a 364,000 lb (165 t) MTOW. In April 2008, to keep the -8 on track for delivery, the -9 stretch was postponed from 2010 to at least 2012 and prioritized before the 787-3 and its 43 orders to follow without a firm delivery date.

It kept the -8 length but its 51.7 m wingspan would have fit in ICAO Aerodrome Reference Code D. It was designed to operate on Boeing 757-300/Boeing 767-200 sized regional routes from airports with restricted gate spacing. The wingspan was decreased by using blended winglets instead of raked wingtips.

By January 2010, all orders, from Japan Airlines and All Nippon Airways, had been converted to the 787-8. As it was designed specifically for the Japanese market, Boeing would likely scrap it after they switched orders. The -8's longer wingspan makes it more efficient on stages longer than 200 nmi (370 km). In December 2010, Boeing withdrew the short-haul model as it struggled to produce the 787-8 after program delays of three years.

Operators

There were 864 Boeing 787 aircraft in airline service as of December 2019, comprising 353 787-8s, 476 787-9s and 35 787-10s, with outstanding orders for further 546 aircraft. As of August 2019, the largest operators are All Nippon Airways (61), Japan Airlines (42), American Airlines (42), and United Airlines (34).

Orders and deliveries

In September 2011, the 787 was first officially delivered to launch customer All Nippon Airways. As of December 2018, the top four identified 787 customers are All Nippon Airways with 83 orders (36 -8s, 44 -9s and three -10s), ILFC (an aircraft leasing company) with 74 orders (23 -8s and 51 -9s), Etihad Airways with 71 orders (41 -9s, 30 -10s) and American Airlines with 70 orders (22 -8s and 48 -9s).

On December 13, 2018, the 787th Boeing 787 was delivered to AerCap. By then the 787 had flown 300 million passengers on 1.5 million flights and opened 210 new nonstop routes. The 1000th Dreamliner, a 787-10 for Singapore Airlines, made its maiden flight on April 3, 2020.

Boeing 787 orders and deliveries (cumulative, by year):

Orders

Deliveries

Orders and deliveries through January 2021.

Accidents and notable incidents

Three 787s of All Nippon Airways sit grounded at Tokyo Haneda International Airport in late January 2013.

The Boeing 787 has been involved in five aviation accidents and incidents as of April 2020.

Operational problems

A Japan Airlines (JAL) 787 experienced a fuel leak on January 8, 2013, and its flight from Boston was canceled. On January 9, United Airlines reported a problem in one of its six 787s with the wiring near the main batteries. After these incidents, the U.S. National Transportation Safety Board subsequently opened a safety probe. Fuel leaks also occurred on January 11, 2013 and on January 13, 2013 at Narita International Airport outside Tokyo. The aircraft reportedly was the same one that had a fuel leak on January 8. Japan's transport ministry also launched an investigation.

On January 11, 2013, the FAA completed a comprehensive review of the 787's critical systems including the design, manufacture, and assembly. The Department of Transportation secretary Ray LaHood stated the administration was "looking for the root causes" behind the recent issues. The head of the FAA, Michael Huerta, said that so far nothing found "suggests [the 787] is not safe."

On July 12, 2013, a fire started on an empty Ethiopian Airlines 787 parked at Heathrow Airport before it was extinguished by the airport fire and rescue service. No injuries were reported. The fire caused extensive heat damage to the aircraft. The FAA and NTSB sent representatives to assist in the investigation. The initial investigation found no direct link with the aircraft's main batteries. Further investigations indicated that the fire was due to lithium-manganese dioxide batteries powering an emergency locator transmitter (ELT). The UK Air Accidents Investigation Branch (AAIB) issued a special bulletin on July 18, 2013, requesting the US FAA ensure that the locator is removed or disconnected in Boeing 787s and to review the safety of lithium battery-powered ELT systems in other aircraft types. On August 19, 2015, the Associated Press reported that the fire was started by a short circuit caused by crossed wires located under the battery. The Air Accidents Investigation Branch's investigators recommended that "the U.S. Federal Aviation Administration, together with similar bodies in Europe and Canada, should conduct a review of equipment powered by lithium metal batteries to ensure they have 'an acceptable level of circuit protection.'"

On July 26, 2013, ANA said it had found wiring damage on two 787 locator beacons. United Airlines also reported that it had found a pinched wire in one 787 locator beacon. On August 14, 2013, the media reported a fire extinguisher fault affecting three ANA airplanes, which caused the fire extinguishers to discharge into the opposite engine from the one requested. The fault was caused by a supplier assembly error.

On September 28, 2013, Norwegian Long Haul decided to take one of its two 787s in its fleet at the time out of service after the two aircraft broke down on more than six occasions in September. The company planned to lease an Airbus A340 for its long-haul operations while the 787 is returned to Boeing for repair.[clarification needed]

On November 22, 2013, Boeing issued an advisory to airlines using General Electric GEnx engines on 787 and 747-8 aircraft to avoid flying near high-level thunderstorms due to an increased risk of icing on the engines. The problem was caused by a buildup of ice crystals just behind the main fan causing a brief loss of thrust on six occasions.

On January 21, 2014, a Norwegian Air Shuttle 787 experienced a fuel leak which caused a 19-hour delay to a flight from Bangkok to Oslo. The leak became known to pilots only after it was pointed out by concerned passengers. It was found later that a faulty valve was responsible. This fuel leak is one of numerous problems experienced by Norwegian Air Shuttle's 787 fleet. Mike Fleming, Boeing's vice president for 787 support and services, subsequently met with executives of Norwegian Air Shuttle and expressed Boeing's commitment to improving the 787's dispatch reliability, "we're not satisfied with where the airplane is today, flying at a fleet average of 98 percent...The 777 today flies at 99.4 percent...and that's the benchmark that the 787 needs to attain.”

In March 2016 the FAA accelerated the release of an airworthiness directive in response to reports indicating that in certain weather conditions "erroneous low airspeed may be displayed..." There was concern "abrupt pilot control inputs in this condition could exceed the structural capability of the airplane." Pilots were told not to apply "large, abrupt control column inputs" in the event of an "unrealistic" drop in displayed airspeed.

On April 22, 2016, the FAA issued an airworthiness directive following a January 29 incident in which a General Electric GEnx-1B PIP2 engine suffered damage and non-restartable power loss while flying at an altitude of 20,000 feet. The damage is thought to have been caused by a fan imbalance resulting from fan ice shedding.

Lithium-ion battery problems

The Aft Electronics Bay that held the JAL 787 battery that caught fire
Japan Airlines 787 battery comparison; Left: typical original battery. Right: damaged battery.

On January 16, 2013, All Nippon Airways Flight NH-692, en route from Yamaguchi Ube Airport to Tokyo Haneda, had a battery problem warning followed by a burning smell while climbing from Ube about 35 nautical miles (65 km) west of Takamatsu, Japan. The aircraft diverted to Takamatsu and was evacuated via the slides; three passengers received minor injuries during the evacuation. Inspection revealed a battery fire. A similar incident in a parked Japan Airlines 787 at Boston's Logan International Airport within the same week led the Federal Aviation Administration to ground all 787s. On January 16, 2013, both major Japanese airlines ANA and JAL voluntarily grounded their fleets of 787s after multiple incidents involving different 787s, including emergency landings. At the time, these two carriers operated 24 of the 50 787s delivered. The grounding reportedly cost ANA some 9 billion yen (US$93 million) in lost sales.

On January 16, 2013, the FAA issued an emergency airworthiness directive ordering all American-based airlines to ground their Boeing 787s until yet-to-be-determined modifications were made to the electrical system to reduce the risk of the battery overheating or catching fire. This was the first time that the FAA had grounded an airliner type since 1979. Industry experts disagreed on consequences of the grounding: Airbus was confident that Boeing would resolve the issue and that no airlines will switch plane type, while other experts saw the problem as "costly" and "could take upwards of a year".

The FAA also conducted an extensive review of the 787's critical systems. The focus of the review was on the safety of the lithium-ion batteries made of lithium cobalt oxide (LiCoO2). The 787 battery contract was signed in 2005, when this was the only type of lithium aerospace battery available, but since then newer and safer types (such as LiFePO4), which provide less reaction energy with virtually no cobalt content to avoid cobalt's thermal runaway characteristic, have become available. FAA approved a 787 battery in 2007 with nine "special conditions". A battery approved by FAA (through Mobile Power Solutions) was made by Rose Electronics using Kokam cells; the batteries installed in the 787 are made by Yuasa.

On January 20, the NTSB declared that overvoltage was not the cause of the Boston incident, as voltage did not exceed the battery limit of 32 V, and the charging unit passed tests. The battery had signs of short circuiting and thermal runaway. Despite this, by January 24, the NTSB had not yet pinpointed the cause of the Boston fire; the FAA would not allow U.S.-based 787s to fly again until the problem was found and corrected. In a press briefing that day, NTSB Chairwoman Deborah Hersman said that the NTSB had found evidence of failure of multiple safety systems designed to prevent these battery problems, and stated that fire must never happen on an airplane.

The Japan Transport Safety Board (JTSB) has said on January 23 that the battery in ANA jets in Japan reached a maximum voltage of 31 V (below the 32 V limit like the Boston JAL 787), but had a sudden unexplained voltage drop to near zero. All cells had signs of thermal damage prior to runaway. ANA and JAL had replaced several 787 batteries before the mishaps. As of January 29, 2013, JTSB approved the Yuasa factory quality control while the NTSB examined the Boston battery for defects. The failure rate, with two major battery thermal runaway events in 100,000 flight hours, was much higher than the rate of one in 10 million flight hours predicted by Boeing.

The only American airline that operated the Dreamliner at the time was United Airlines, which had six. Chile's Directorate General of Civil Aviation (DGAC) grounded LAN Airlines' three 787s. The Indian Directorate General of Civil Aviation (DGCA) directed Air India to ground its six Dreamliners. The Japanese Transport Ministry made the ANA and JAL groundings official and indefinite following the FAA announcement. The European Aviation Safety Agency also followed the FAA's advice and grounded the only two European 787s operated by LOT Polish Airlines. Qatar Airways grounded their five Dreamliners. Ethiopian Airlines was the final operator to temporarily ground its four Dreamliners. By January 17, 2013, all 50 of the aircraft delivered to date had been grounded. On January 18, Boeing halted 787 deliveries until the battery problem was resolved.

On February 7, 2013, the FAA gave approval for Boeing to conduct 787 test flights to gather additional data. In February 2013, FAA oversight of the 787's 2007 safety approval and certification was under scrutiny. On March 7, 2013, the NTSB released an interim factual report about the Boston battery fire on January 7, 2013. The investigation stated that "heavy smoke and fire coming from the front of the APU battery case." Firefighters "tried fire extinguishing, but smoke and flame (flame size about 3 inches) did not stop".

Boeing completed its final tests on a revised battery design on April 5, 2013. The FAA approved Boeing's revised battery design with three additional, overlapping protection methods on April 19, 2013. The FAA published a directive on April 25 to provide instructions for retrofitting battery hardware before the 787s could return to flight. The repairs were expected to be completed in weeks. Following the FAA approval in the U.S. effective April 26, Japan approved resumption of Boeing 787 flights in the country on April 26, 2013. On April 27, 2013, Ethiopian Airlines took a 787 on the model's first commercial flight after battery system modifications.

On January 14, 2014, a battery in a JAL 787 emitted smoke from the battery's protection exhaust while the aircraft was undergoing pre-flight maintenance at Tokyo Narita Airport. The battery partially melted in the incident; one of its eight lithium-ion cells had its relief port vent and fluid sprayed inside the battery's container. It was later reported that the battery may have reached a temperature as high as 1,220 °F (660 °C), and that Boeing did not understand the root cause of the failure.

The NTSB has criticized FAA, Boeing, and battery manufacturers for the faults in a 2014 report. It also criticized the GE-made flight data and cockpit voice recorder in the same report. The enclosure Boeing added is 185 lb (84 kg) heavier, negating the lighter battery potential.

Aircraft on display

N787BA, the first prototype aircraft, on display in the "Flight of Dreams" building at Chubu Centrair Airport, Nagoya

All three prototype 787-8s are preserved in museums.

Specifications

Schematic of the Boeing 787-8: side, top, front, cross-section views

See also

An Airbus A350 taking off behind an Air Tahiti Nui Boeing 787-9 at Paris Air Show 2019

Related development

Aircraft of comparable role, configuration, and era

Related lists

References

Bibliography

External links

Uses material from the Wikipedia article Boeing 787 Dreamliner, released under the CC BY-SA 3.0 license.