The Boeing 787-9 Dreamliner, a stretched variant of the 787-8 aircraft, has a seating capacity suitable for 250 to 290 passengers.
It can travel up to a range of 8,300nm (15,372km). Boeing’s 787-9 offers new passenger-pleasing features and delivers high performance, while also consuming 20% less fuel than any other aircraft in its class.
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The maiden flight of the 787-9 was completed in September 2013. The first aircraft was delivered in June 2014.
Orders and deliveries of Boeing’s aircraft
In September 2012, All Nippon Airlines (ANA) placed an order for 11 additional 787-9 Dreamliners, bringing the total number of 787-9s ordered by ANA to 30.
The JAL Group (JAL) placed an order for 20 787-9 aircraft in January 2012. The order includes ten new purchases as well as the conversion of ten Boeing 787-8s ordered earlier by JAL. Air New Zealand placed an order for two 787-9 aircraft in February 2012.
In December 2011, Boeing received a $2.8bn contract from Etihad Airway for ten 787-9 aircraft and two 777 Freighters. Boeing was also awarded a contract by Air France-KLM Group for 25 787-9 Dreamliners in the same month.
Boeing received an order from Saudi Arabian Airlines for eight 787-9 aircraft in November 2010.
In October 2006, Singapore Airlines placed an order for 20 Boeing 787-9 Dreamliners, plus purchase rights for 20 additional aircraft.
Air Lease received its first 787-9 Dreamliner from Boeing and Hainan Airlines in June 2016 as part of an order that includes delivery of 15 more 787-9 Dreamliners.
Design and features of the 787-9 Dreamliner
The visionary design of the 787-9 incorporates a one-piece fuselage and low-swept back wings. The majority of the primary structure, including the fuselage and wings, comprises composite materials such as carbon sandwich, carbon laminate and a glass/carbon hybrid. These materials make up 50% of the 787-9’s weight.
The composite wing structure provides the aircraft with a higher aspect ratio. Combined with high-efficiency raked wingtips, the high-aspect-ratio wings enhance speed while reducing the consumption of fuel. The simple pivot trailing edge flaps provide the aircraft with high lift-to-drag characteristics without sacrificing performance.
The design and build work of the 787-9 employs new technologies for achieving efficiency in the production process. The use of a one-piece barrel eliminated 1,500 aluminium sheets and approximately 50,000 fixings.
In June 2012, GKN Aerospace was contracted to supply parts for the horizontal stabiliser of the aircraft.
Boeing 787-9 flight deck technology
The 787-9 flight deck is equipped with navigation and communication technology and an avionics suite. The standard instrumentation includes a dual head-up display (HUD), flat panel multi-function displays, dual electronic flight bags (EFB) and an electronic checklist.
The wide 12in x 9.1in displays provide a clear view of the information related to the flight and navigation systems. The reprogrammable displays can be incorporated with future advancements without hardware modifications. The on-board fly-by-wire control system allows the pilot to actuate wing and tail control surfaces.
Cabin of Boeing’s 787-9 Dreamliner
The 787’s cabin features wider aisles and seats, large dimmable windows, spacious stowage and dynamic LED lighting. The typical seating arrangement includes economy (214), business (50) and first-class (16) seats. The aircraft offers a total cargo volume of 153m³. Each passenger is provided with enough space for their baggage.
The overhead compartments can store one large roll-aboard bag. The new stowage bin design integrates touchpoints that allow passengers to easily open, load and close the bins.
The large dimmable windows of 787-9 are 30% bigger than those on similarly sized aircraft on the market. The tint of the window can be changed by actuating an electrochromic window system with the touch of a button. The system also regulates the cabin temperature when the aircraft is on the ground in hot weather.
Engines and landing gear suppliers
The 787-9 Dreamliner is powered by General Electric GEnx or Rolls-Royce Trent 1000 engines.
Each engine type is capable of developing between 55,000lb and 74,000lb of thrust. GEnx, which is a low-risk, high-value, high-bypass turbofan jet engine developed from the GE90 engine, delivers 15% better fuel consumption.
The Trent 1000 is the cleanest and lightest engine developed from the earlier Trent series engines. It is the launch engine for all models in the Boeing 787 family.
The main and nose landing gear are supplied by Messier-Dowty, while landing gear actuation systems are provided by Smiths Aerospace. The electric braking system from Goodrich and Messier-Bugatti delivers advantages over hydraulic brakes.
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