Deliveries will begin in The engine has accumulated more than 1. More than 1, GEnx-1B engines have been sold to more than 50 customers. The GEnx's innovative twin-annular pre-swirl TAPS combustor dramatically reduces NOx gases as much as 55 percent below today's regulatory limits and other regulated gases as much as 90 percent. Based on the ratio of decibels to pounds of thrust, the GEnx is the quietest engine GE produces due to the large, more efficient fan blades that operate at slower tip speed, resulting in about 40 percent lower noise levels.
The GEnx is part of GE's "ecomagination" product portfolio - GE's business strategy to develop new, cost-effective technologies that enhance customers' environmental and operating performance. The Qantas Group is already operating the GEnx-powered Boeing that entered service at its subsidiary airline Jetstar in October GE Aviation, an operating unit of GE NYSE: GEis a world-leading provider of jet and turboprop engines, components and integrated systems for commercial, military, business and general aviation aircraft.
GE Aviation has a global service network to support these offerings. If you are a member of the press and have additional questions, please contact us by e-mail. GE Aviation is a world-leading provider of commercial, military and business and general aviation jet and turboprop engines and components as well as avionics, electrical power and mechanical systems for aircraft. GE has a global service network to support these offerings.
GE and its customers are also working together to unlock new opportunities to grow and deliver more productivity beyond traditional services. GE Aviation is becoming a digital industrial business with its ability to harness large streams of data that are providing incredible insights and in turn, real operational value for customers. Contact Information If you are a member of the press and have additional questions, please contact us by e-mail.
GE Aviation GE Aviation is a world-leading provider of commercial, military and business and general aviation jet and turboprop engines and components as well as avionics, electrical power and mechanical systems for aircraft.Uae database directory free download
Contact Information How can we help you? Customer Support Contact Us.After dropping its Sonic Cruiser project, Boeing announced the conventional 7E7 on January 29,focused on efficiency. On July 8,the prototype was rolled-out without major systems, and experienced multiple delays until its maiden flight on December 15, Type certification was received in August and the first was delivered in September before entering commercial service on October 26,with ANA.
Powered by twin General Electric GEnx or Rolls-Royce Trent high-bypass turbofans, it is the first airliner with an airframe primarily made of composite materialsand makes extensive use of electrical systems. Externally, it is recognizable by its four-window cockpit, raked wingtipsand 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.
The initial, ft 57 m long typically seats passengers over a range of 7, nmi 13, kmwith alb t MTOW compared tolb t for later variants. The stretchedft 63 m long, can fly 7, nmi 14, km with passengers; it entered service on August 7,with ANA. The further stretchedft 68 m long, seating over 6, nmi 11, kmentered service with Singapore Airlines on April 3, Early operations encountered several problems caused by its lithium-ion batteriesculminating in fires on board.
During the late s, Boeing considered replacement aircraft programs as sales of the and slowed. Two new aircraft were proposed. 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, On January 29, Boeing announced an alternative product, the 7E7, using Sonic Cruiser technology in a more conventional configuration.
Ina recent addition to the Boeing board of directors, James McNerney who would become Boeing's Chairman and CEO insupported the need for a new aircraft to regain market share from Airbus. 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 ULTIMATE 787 ENGINE SOUND COMPARISON!! Choose your favourite!!
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. On April 26,Japanese airline All Nippon Airways ANA became the launch customer for theannouncing a firm order for 50 aircraft with deliveries to begin in late The 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, fasteners used on existing aircraft.
The final styling was more conservative than earlier proposals, with the fin, nose, and cockpit windows changed to a more conventional form.
Bycustomer-announced orders and commitments for the reached aircraft. On December 16,Boeing announced that the would be assembled in its factory in Everett, Washington.
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. To speed up deliveries, Boeing modified four used s into Dreamlifters to transport wings, fuselage sections, and other smaller parts. Japanese industrial participation was key on the project. Boeing planned a first flight by the end of August and premiered the first registered NBA at a rollout ceremony on July 8, In SeptemberBoeing announced a three-month delay, blaming a shortage of fasteners as well as incomplete software.
On April 9,a fourth delay was announced, shifting the maiden flight to the fourth quarter ofand delaying initial deliveries by around 15 months to the third quarter of The variant was postponed to and the variant was to follow at a later date. As Boeing worked with its suppliers towards production, the design proceeded through a series of test goals. On May 3,the first test 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 June 15,during the Paris Air ShowBoeing said that the would make its first flight within two weeks. However, on June 23,the first flight was postponed due to structural reasons.Discover what goes into creating the industry-leading technology of the Dreamliner family using the navigation below. Choose by interest or by topic. The Boeing Dreamliner is an all-new, super-efficient family of commercial airplanes that brings big-jet ranges and speed to the middle of the market.
In response to airlines' overwhelming preference, Boeing designed the family with superior efficiency, which allows airlines to profitably open new routes to fly people directly where they'd like to go in exceptional comfort. The is an all-new design with no legacy constraints, and it achieves many firsts in commercial aviation.
The makes the best use of available new technologies. Materials, aerodynamics, systems, and engines have been chosen and designed with the overall, integrated design at the forefront. Design choices never optimize one area at the expense of overall performance, economics, maintenance costs, or airplane availability. The Dreamliner features a state-of-the-art flight deck that balances commonality with the latest enhancements. New technologies are integrated while still maintaining a significant amount of commonality with other Boeing airplanes, particularly the Familiar Boeing controls, displays and procedures all support shorter transition periods to the from other Boeing family members, enabling efficient Mixed Fleet Flying.
The flight deck is furnished with a full suite of navigation and communication radios and avionics. The wide-format displays provide a larger map and enhance access to information about the flight and navigation.
Also, the new displays are programmable, which means future advancements can be easily incorporated without having to replace or upgrade the display hardware.
Conventional Pneumatic Architecture On conventional airplanes, pneumatic systems divert hot, high-pressure air from the engines to power other systems.
Not only does this require a complex system of manifolds, valves and ducts, it requires constant monitoring and frequent maintenance. It also tends to be inefficient because of the weight of the system and because air is "bled" off the engines, which then have to work harder. The electric system improves efficiency by extracting only the power actually needed during each phase of flight.
The 's electrical system also is monitored automatically by the Airplane Health Management system, improving airplane availability and productivity. Airflow The 's simple pivot trailing edge flaps allow for much smaller flap track fairings than on conventional aircraft.
This gives the airplane highly efficient lift-to-drag characteristics that reduce fuel consumption and costs. In addition, the 's simple pivot trailing edge has fewer parts for reduced maintenance and provides a lighter and simpler high-lift system without sacrificing performance.Tamed owlina quest
Structure The use of composite materials in the wing structure allows the wing to have a higher aspect ratio the square of the wing span divided by the wing area than previous aircraft. This high aspect ratio wing design combined with efficiency enhancing raked wing tips allow the to be one of the fastest commercial aircraft Mach 0. The Dreamliner family features an advanced fly-by-wire flight control system.
Instead of a mechanical system of cables and pulleys that move the control surfaces on the wing and tail, fly-by-wire systems translate pilot inputs into electrical signals. Computer processors translate these signals and move the control surfaces accordingly to move the airplane. Used on commercial airplanes for decades, fly-by-wire systems are highly reliable and feature multiple independent backup systems in case of a failure.
The 's fly-by-wire control system is so advanced that it optimizes the shape or "camber" of the wing automatically to save the most fuel. During cruise, the wing trailing edge automatically adjusts upward and downward to continually optimize the camber for maximum efficiency.
Normally used to dip the wing up or down to turn in flight, ailerons on the also adjust automatically to help optimize the wing during takeoff and cruise. This advanced fly-by-wire system also is the key to Smoother Ride Technology — unique to the family -- which senses turbulence and adjusts control surfaces automatically to dampen its effects before it reaches the passengers.
The nacelle was designed to maintain laminar flow over a longer portion of the nacelle than ever before. The associated reduction in drag reduces fuel consumption. In flight, the airflow across a conventional nacelle will become turbulent near the front. This turbulence or rough air increases the power required by the engine, increasing fuel consumption. When designing an airplane, engineers aim to create surfaces over which air flows smoothly. At the high speeds of commercial flight, this "laminar" flow is key because it reduces friction, which reduces drag, fuel consumption and emissions.
New technology in the nacelle is designed to maintain laminar flow over a longer portion of the surface than ever before, saving more fuel and emissions.
The next-generation engine technology of the is provided by Boeing's engine partners, General Electric and Rolls-Royce.The GEnx is the fastest-selling, high-thrust jet engine in GE Aviation history with more than 2,plus engines in-service and on order. GEnx is the best-selling engine on the Dreamliner in addition to powering the four-engine Boeing The GEnx engine represents a giant leap forward in propulsion technology, using the latest materials and design processes to reduce weight, improve performance and deliver a more fuel-efficient commercial aircraft engine.
With the highest pressure ratio compressor in commercial service today, the GEnx has the best fuel efficiency in its thrust class, enabling it to power many of the longest routes. These leading-edge technologies and the engine's elegant architecture bring in high operational reliability, excellent utilization rate and route flexibility for more flights per year and more revenue for airlines.
The carbon-fiber composite fan blades on the GEnx engine feature a new, more efficient design, a reduced blade count from 22 to 18 fan blades and a composite fan case for further weight reduction. The GEnx low-pressure turbine LPT is lighter and more efficient than its predecessor and incorporates next-generation 3D aerodynamics. It also introduces Titanium Aluminide blades to stages 6 and 7, reducing engine weight by approximately lbs.
Download GEnx-1B data sheet. Optimized for the Boeing airplane, the GEnx-2B engine features a smaller fan, de-staged booster and de-staged low-pressure turbine. Download GEnx-2B data sheet. GE Aviation is a world-leading provider of commercial, military and business and general aviation jet and turboprop engines and components as well as avionics, electrical power and mechanical systems for aircraft.
GE has a global service network to support these offerings. GE and its customers are also working together to unlock new opportunities to grow and deliver more productivity beyond traditional services.
Rolls-Royce Trent 1000
GE Aviation is becoming a digital industrial business with its ability to harness large streams of data that are providing incredible insights and in turn, real operational value for customers. Carbon-fiber composite fan blades After introducing composite fan blades on the GE90 engine inGE Aviation is taking the technology to a new level with the GEnx. GEnx-2B Engine Optimized for the Boeing airplane, the GEnx-2B engine features a smaller fan, de-staged booster and de-staged low-pressure turbine.
GEnx Engine Model Comparison. GE Aviation GE Aviation is a world-leading provider of commercial, military and business and general aviation jet and turboprop engines and components as well as avionics, electrical power and mechanical systems for aircraft. Contact Information How can we help you? Customer Support Contact Us.Post a Comment. Saturday, 29 December Review New. As part of the family, the Boeing Dreamliner utilizes proven technology, long range range, and selected passenger experience, with fuel efficiency and 10 percent emissions.
Boeing received its production certificate on February It was first sent to launch Singapore Airlines customers on March 25 Equipped with seats, 36 in business and in economy, the Boeing Dreamliner starts commercial services on April 3, Shipment of the first Boeing Dreamliner first The biggest advantage of the new Boeing Dreamliner is its fuel efficiency. The aircraft uses 25 percent less fuel per passenger compared to aircraft of the same size and 10 percent more fuel efficient than competitors.
The Boeing Dreamliner was built with a sophisticated one barrel composite fuselage and strong design, all Dreamliner aircraft cut operating costs by 15 percent and maintenance costs by 30 percent. Fewer scheduled improvements mean more airtime and ultimately more revenue.
Length m. Wingspan m. Height m.
General Electric GEnx
Wing area m 2. Maximum take-off weight kg. Maximum landing weight kg. Maximum zero fuel weight kg. Standard fuel capacity L. Range with max payload km. Maximum operating altitude m. Cabin Data.
Boeing 787-10 Dreamliner Specs, Interior, Engine, Seats, and Price
Passengers 1-class. Passengers 2-class. Cabin width m. No comments:. Newer Post Older Post Home. Subscribe to: Post Comments Atom. Recent recentposts. Random randomposts.The GEnx and the Rolls-Royce Trent were selected by Boeing following a run-off between the three big engine manufacturers.
The GEnx uses some technology from the GE90 turbofan,  including composite fan blades, and the smaller core featured in earlier variants of the engine. The engine carries composite technology  into the fan case. Both engines enable the move towards the More Electric Aircraftthat is, the concept of replacing previously hydraulic and pneumatic systems with electrical ones to reduce weight, increase efficiency, and reduce maintenance requirements.
Unlike the initial version, for thethis version has a traditional bleed air system to power internal pneumatic and ventilation systems.Reactstrap form example
It will also have a smaller overall diameter than the initial model to accommodate installation on the General Electric began initial test runs of the bleedless GEnx variant on 19 March By FallGeneral Electric was offering the GEnx-2B, developed for thefor the revised XF variant based on the ER, but needed enough volume to cover the new product certification.
Introduced in late on a freighter, Cargolux surpassed one million flight hours in early One failure was caused by an assembly problem, which led to inspections of all other engines then in service. During the spring and summer ofGE learned of four F freighters that suffered icing in their engines at altitudes of 40, feet and above.
The most serious incident involved an AirBridgeCargo freighter; on July 31, while at an altitude of 41, feet over Chinathe flight crew noted two engines surging while a third lost substantial power.Does bamboo attract snakes
The pilots were able to land the plane safely but the engines were found to have sustained damage. Among the possible factors cited was "'unique convective weather systems' such as unusually large thunderstorms reaching high altitudes.
In Marcha GEnx-powered Boeing had its first in-flight shut down in operation when a JAL flight had to divert to Honolulu after an oil pressure alert, bringing its in-flight shut down rate to 1 perhours. In earlyof orders for the Bselected the GEnx The GEnx is derived from the GE90 with a fan diameter of To reduce weight, it features 18 composite fan blades, a composite fan case and titanium aluminide stage 6 and 7 low-pressure turbine blades.
It has a 10 stage high-pressure compressor and is quieter, helped by larger, more efficient fan blades. Fan blades have steel alloy leading edges and the composite fan case reduces thermal expansion.
To reduce fuel burn, the pressure ratio high-pressure compressor is based on the GEBshrouded guide vanes reduce secondary flows and counter-rotating spools for the reaction turbines reduce load on guide vanes.
To reduce maintenance cost and increase engine life, spools with lower parts count are achieved by using blisks in some stages, low blade counts in other stages and by using fewer stages; internal engine temperatures are reduced due to more efficient cooling techniques and debris extraction within the low-pressure compressor protects the high-pressure compressor.
From Wikipedia, the free encyclopedia. Aviation portal. GE Aviation. September 20, June 19, June 17, Retrieved 18 October Aviation Week. Aviation Week Network. Retrieved 6 October Wall Street Journal. Retrieved June 10, The first run of the Trent was on 14 February On 2 Augusta Trent suffered an uncontained engine failure of the intermediate turbine on a test stand. The engine first ran in mid It first flew on a Boeing on 7 December The Trent is a high bypass turbofan with three independent, coaxial shafts and a single annular combustor with 18 spray nozzles.
The Low Pressure shaft with a swept-bladed, 2. The Intermediate Pressure spool with 8 axial compressors is turned by a single turbine stage. The six-stage High Pressure Compressor is driven by a single turbine stage, turning in the opposite direction of the two others shafts.
The engine is controlled by an EEC.Svm dataset
Initially, Boeing toyed with the idea of sole sourcing the powerplant for thewith GE Aviation being the most likely candidate. However, potential customers demanded choices and Boeing relented.
For the first time in commercial aviation, both engine types will have a standard interface with the aircraft, allowing any to be fitted with either a GE or Rolls-Royce engine at any time as long as the pylon is also modified. The cost of such a change would require a significant operating cost difference between the two engine types to make it economical - a difference that does not exist with the engines today.
As with earlier variants of the Trent family, Rolls partnered with risk and revenue sharing partners on the Trent program. This time there were six partners: Kawasaki Heavy Industries intermediate compressor moduleMitsubishi Heavy Industries combustor and low pressure turbine bladesIndustria de Turbo Propulsores low pressure turbineCarlton Forge Works fan caseHamilton Sundstrand gearbox and Goodrich Corporation engine control system. Altogether, these partners have a 35 percent stake in the program.4 social styles test
The Trent family makes extensive use of technology derived from the Trent demonstrator. In order to fulfill Boeing's requirement for a "more-electric" engine, the Trent is a bleedless design, with power take-off from the intermediate-pressure IP spool instead of the high-pressure HP spool found in other members of the Trent family. The bypass ratio has been increased over previous variants by suitable adjustments to the core flow. A high pressure ratio along with contra-rotating the IP and HP spools improves efficiency.
A tiled combustor is featured. Corrosion -related fatigue cracking of intermediate-pressure turbine IPT blades was discovered at All Nippon Airways in early Engines showing excessive corrosion were pulled from service and repaired in a shop visit, more corrosion-resistant blades were developed and rolled-out.
HPT blades fatigue was checked and IPC rotor seals inspected but several airlines had to ground s. This condition, if not detected and corrected, could lead to in-flight blade release, possibly resulting in reduced control of the aeroplane.
Boeing dispatched MAX head VP Keith Leverkuhn to help Rolls-Royce overcome the problems, showing their importance as 34 aircraft are grounded and this number could rise in coming months as the affected engines power a quarter of the fleet. Rolls-Royce assigned people to solve the issue and installs a revised IP compressor blade for early June testing, accelerating a permanent fix development to have parts available for overhaul from late Laboratory testing of the newer turbine is satisfactory and the turbine lifetime should be proved by in-service inspections, with some engines already having completed 1,—1, cycles.
A materials test program was verified with UK and European universities: low-cycle fatigue tests showed the agent diffusion into the main material was prevented, avoiding microcrack formation. A model predicts the corrosive agents exposure to avoid inspections and to sequence the retrofits. The failure mechanism was not clearly understood when the issue was discovered in March, after four compressor blades on the first IP rotor and one on the second failed in a high-time engine.
This caused wear and tear leading to microcracks in the blades roots, growing to proper cracks failing after around 1, cycles and resulting in an inflight shutdown.
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