The Boeing 747-8 is a wide-body airliner developed by Boeing Commercial Airplanes, the latest and largest variant of the 747. After introducing the 747-400, Boeing considered larger 747 versions as alternatives to Airbus' A3XX. The stretched 747 Advanced was launched as the 747-8 on November 14, 2005, for a market forecast of 300 aircraft. The first 747-8F Freighter performed its maiden flight on February 8, 2010, and the passenger 747-8I Intercontinental followed suit on March 20, 2011. The cargo version was first delivered in October 2011 and the airliner began commercial service in June 2012.
|The stretched 747-8F has a wider wing with raked wingtips and GEnx turbofans in nacelles with chevrons|
|Role||Wide-body jet airliner|
|National origin||United States|
|Manufacturer||Boeing Commercial Airplanes|
|First flight||747-8F: February 8, 2010 |
747-8I: March 20, 2011
|Introduction||747-8F: October 12, 2011, with Cargolux |
747-8I: June 1, 2012, with Lufthansa
|Status||In production, in service|
Cathay Pacific Cargo
|Number built||137 as of May 2020|
|Developed from||Boeing 747-400|
Its fuselage is stretched by 18 ft (5.6 m) to 250 ft (76.3 m), the longest airliner until the 777X-9, first flown in 2020. While keeping its basic structure and sweep, the wing is thicker and deeper, holding more fuel, and wider with raked wingtips. Powered by the more efficient General Electric GEnx turbofan of the 787 Dreamliner, its maximum take-off weight (MTOW) grew to 975,000 lb (442 t), the heaviest Boeing airliner. The Freighter version has a shorter upper deck and it can haul 137 t (302,000 lb) over 4,120 nmi (7,630 km). The airliner version can carry 467 passengers in a typical three-class configuration over 7,790 nmi (14,430 km). As of August 2019[update], it has 154 confirmed orders: 107 freighters, and 47 passenger airliners.
Boeing had considered larger-capacity versions of the 747 several times during the 1990s and 2000s (Boeing New Large Airplane). The 747-500X and -600X, proposed at the 1996 Farnborough Airshow, would have stretched the 747 and used a 777-derived wing, but it did not attract enough interest to enter development. In 2000, Boeing offered the 747X and 747X Stretch derivatives as alternatives to the Airbus A3XX. This was a more modest proposal than the previous −500X and −600X. The 747X would increase the 747's wingspan to 229 ft (69.8 m) by adding a segment at the root. The 747X was to carry 430 passengers up to 8,700 nmi (16,100 km). The 747X Stretch would be extended to 263 ft (80.2 m) long, allowing it to carry 500 passengers up to 7,800 nmi (14,400 km). However, the 747X family was unable to attract enough interest to enter production. Some of the ideas developed for the 747X were used on the 747-400ER.
After the 747X program, Boeing continued to study improvements to the 747. The 747-400XQLR (Quiet Long Range) was meant to have an increased range of 8,056 nmi (14,920 km), with better fuel efficiency and reduced noise. Changes studied included raked wingtips similar to those used on the 767-400ER and a 'sawtooth' engine nacelle for noise reduction. Although the 747-400XQLR did not move to production, many of its features were used for the 747 Advanced.
In early 2004, Boeing announced tentative plans for the 747 Advanced that were eventually adopted. Similar in nature to the 747X, the stretched 747 Advanced used technology from the Boeing 787 Dreamliner to modernize the design and its systems. In 2005, Boeing forecast a market for 300 aircraft, split evenly between freighters and passenger variants. On November 14, Boeing announced that it was launching the 747 Advanced as the "Boeing 747-8".
The 747-8 was the first lengthened 747 to go into production and the second 747 version with a fuselage of modified length after the shortened 747SP. The 747-8 was intended to use the same engine and cockpit technology as that of the 787, including the General Electric GEnx turbofan and partial fly-by-wire. In 2006, Boeing said that the new design would be quieter, more economical, and more environmentally friendly than previous versions of the 747. As a derivative of the already-common 747-400, the 747-8 has the economic benefit of similar training and interchangeable parts. Boeing firmed the 747-8 Freighter's configuration in October 2006.
The 747-8, as the current new development of Boeing's largest airliner, is notably in direct competition on long-haul routes with the Airbus A380, a full-length double-deck aircraft introduced in 2007. For airlines seeking very large passenger airliners, the two have been pitched as competitors on various occasions. Boeing states that the 747-8 is more than 10 percent lighter per seat and consumes 11 percent less fuel per passenger than the A380, translating into a trip-cost reduction of 21 percent and a seat-mile cost reduction of over 6 percent.
Production of the first 747-8 Freighter began in Everett in early August 2008. On November 14, 2008, Boeing announced a delay to the 747-8 program, citing limited availability of engineering resources within Boeing, design changes, and the recent strike by factory workers. In February 2009, only one airline customer (Lufthansa) had ordered the 747-8I passenger model, and Boeing announced it was reassessing the 747-8 project. Chief executive Jim McNerney stated that continuation of the project was not a foregone conclusion, and that the company was assessing various options.
On July 21, 2009, Boeing released a photograph of the first cargo airplane, its fuselage and main wing assembled. In October 2009, Boeing announced that it had delayed the first flight on the 747-8 until the first quarter of 2010 and delayed 747-8I delivery. The company took a US$1-billion charge against its earnings for this delay. In response, launch customer Cargolux stated it still intended to take delivery of the thirteen freighters it had ordered; Lufthansa confirmed its commitment to the passenger version. On November 12, 2009, Boeing announced that Cargolux's first airplane was fully assembled and entering the Everett plant's paint shop. It was to undergo flight testing prior to delivery.
On December 4, 2009, Korean Air became the second airline customer for the −8I passenger model, with an order for five airliners. On January 8, 2010, Guggenheim Aviation Partners (GAP) announced the reduction of its −8F order from four to two aircraft. In March 2011, Korean Air converted options into a firm order for two additional −8 freighters. It received its first -8I in late August 2015.
Flight testing and certificationEdit
The 747-8's first engine runs were completed in December 2009. Boeing announced the new model had successfully completed high-speed taxi tests on February 7, 2010. On February 8, 2010, after a 2.5-hour weather delay, the 747-8 Freighter made its maiden flight, taking off from Paine Field, Washington at 12:39 PST, and landed at 4:18 pm PST. Boeing estimated that more than 1,600 flight hours would be needed in order to certify the 747-8. The second test flight in late February, a ferry flight to Moses Lake, Washington, tested new navigation equipment. Further flight testing was to take place in Moses Lake, conducting initial airworthiness and flutter tests, before moving to Palmdale, California, for the majority of flight tests, so as to not interfere with 787 flight tests based out of Boeing Field in Seattle.
By March 11, 2010, the 747-8F had flown thirteen flights covering a total of 33 hours. On March 15, 2010, the second 747-8F first flew from Paine Field to Boeing Field, where it was briefly based before moving to Palmdale to continue flight testing with the first −8F. On March 17 the third −8F made its first flight and joined the test program.
During the flight tests, Boeing discovered a buffet problem with the aircraft, involving turbulence coming off the landing gear doors interfering with the inboard flaps. Boeing undertook an evaluation of the issue, which included devoting the third test aircraft to investigating the problem. The issue was resolved by a design change to the outboard main landing gear doors. In early April 2010, Boeing identified a possible defect in one of the upper longerons, a main component of the fuselage. According to Boeing, the parts, manufactured by subcontractor Vought Aircraft Industries, were, under certain loads, susceptible to cracking. Boeing said that the issue would not affect flight testing, but other sources stated that the problem could impact the operating envelope of the aircraft until it was fully repaired. Two other issues found during testing were oscillation in the inboard aileron and a structural flutter, which had not been resolved as of 2010. Combined, these problems slowed flight testing and used up almost all the margin in Boeing's development schedule.
On April 19, 2010, the second flight-test aircraft was moved from Moses Lake to Palmdale to conduct tests on the aircraft's engines in preparation for obtaining a type certification for the aircraft. The remaining aircraft in the test fleet were scheduled to move to Palmdale during May. It was reported on June 3, 2010, that an engine on the second 747-8F was struck by a tug during a ground move. The engine cowling was damaged, but there was no damage to the engine itself. After repairs, the aircraft moved into fuel efficiency testing. It was announced on June 14, 2010, that the 747-8 had completed the initial phase of flight-worthiness testing and that the Federal Aviation Administration had given Boeing an expanded type inspection authorization for the aircraft.
By the end of June 2010, the three 747-8Fs that composed the flight-test program had flown a total of over 500 hours and had completed hot-weather testing in Arizona. In June 2010, Boeing determined that a fourth −8F aircraft was needed to help complete flight testing. It was decided to use the second production aircraft, RC503, to conduct the non-instrumented or minimally-instrumented tests, such as HIRF and Water Spray Certifications. The aircraft, painted in delivery customer Cargolux's new livery, first flew on July 23, 2010.
On August 21, 2010, a 747-8F proved the variant's capability by taking off from the runway at Victorville, California, weighing 1,005,000 pounds (455,860 kg). Its design maximum take-off weight (MTOW) is 975,000 pounds (442,253 kg). The fifth 747-8F joined the flight-test effort with its first flight on February 3, 2011. On September 30, 2010, Boeing announced a further postponement, with the delivery of the first freighter to Cargolux planned for mid-2011.
The 747-8 passenger version took to the skies over Everett, Washington, for the first time on March 20, 2011. The second 747-8I flew on April 26, 2011. Three 747-8 Intercontinentals had taken part in flight testing by December 2011.
The 747-8F received its amended type certificate jointly from the Federal Aviation Administration (FAA) and European Aviation Safety Agency (EASA) on August 19, 2011. Freighter deliveries were to begin on September 19, 2011. Then on September 17, 2011, Cargolux announced that it would not accept the first two 747-8Fs scheduled for delivery on September 19 and 21, 2011, due to "unresolved contractual issues between Boeing and Cargolux" with the aircraft. It entered service in October 2011.
On October 25, 2011, a 747-8 flew to Grantley Adams International Airport in Barbados to begin flight testing in the tropical climate of the Caribbean to determine its effects on the aircraft. One test −8I was used for an evaluation by Lufthansa in early December 2011 before first delivery in early 2012. On December 14, 2011, the 747-8I received its type certificate from the FAA. The aircraft noise from the 747-8 has earned it a Quota Count of 2 for takeoff and 1 for landing at London's three major airports, a significant improvement over the 747-400.
Into service and further developmentEdit
On April 21, 2010, Boeing chief executive officer Jim McNerney announced that the company would be accelerating the production of both the Boeing 747 and 777 to support increasing customer demand.
Boeing handed over the first 747-8F to Cargolux in Everett, Washington, on October 12, 2011. The first 747-8 Intercontinental was delivered to Lufthansa on May 5, 2012, and began operating the version on flights from Frankfurt to Washington, D.C., on June 1, 2012.
In 2014, Boeing embarked on an improvement program for the 747-8 named "Project Ozark", with the goal of improved range and lower fuel burn. With all improvements implemented, the resulting aircraft would have a maximum takeoff weight of greater than 1,000,000 lb (450 t). The company slowly introduced aspects of Ozark over time. An engine Performance Improvement Package resulted in a 2% lower fuel burn. Boeing also improved the tail fuel tank's function and improved the flight management software. Aircraft produced beginning in 2014 weigh 9,000 lb (4.1 t) less than the first 747-8 coming off the production line and burns 3.5% less fuel.
Other improvements include revised fairings next to the tail and wing-to-body-fairings. The chevrons on the trailing edge of the GEnx-2B nacelle were made thinner. Boeing hoped that these improvements, which benefit both the passenger and freighter version, would help improve sales. Boeing has since updated the incremental improvements planned for the 747-8, of which include; increasing the maximum takeoff weight to 472 t (1,041,000 lb), strengthening the main landing gear, and increasing the aircraft's full-payload range to 8,200 nmi (15,200 km).
In early 2014, the director-general of the International Air Transport Association noted that slower economic growth, following the Great Recession, had led to lower demand for air freighters. The world's air cargo fleet in 2012 was smaller than it was in 2003. However, the proportion of very large freighters in that fleet has increased, and Boeing's dominant position in large, fuel-efficient freighters has offered the company an opportunity to protect its market share and its product line despite the market weakness.
Demand has been chiefly for the 747-8F, which accounts for the majority of 747-8 aircraft ordered. The large capacity of the 747-8 is an advantage for the freighter version, not the passenger version. Moreover, the freighter has no direct competitor, as Airbus' competing A380 freighter version was canceled during development.
Airlines including Emirates and British Airways considered ordering the passenger version, but opted to purchase the Airbus A380 instead. In 2013, Arik Air converted its order for two 747-8s to two 777-300ERs. At the 2013 Paris Air Show, Korean Air agreed to order five 747-8 passenger versions, in addition to five ordered in 2009. Korean Air and Boeing finalized the new -8 order in October 2013.
The overall demand for the 747-8 turned out to be below Boeing's initial projections as well, which led to several reductions in production rate. Production was initially decreased from 2 to 1.75 aircraft per month in April 2013 and then reduced further to 1.5 aircraft per month in October 2013. On June 25, 2015, the Wall Street Journal reported that the order backlog was down to 32 and Boeing had decided to reduce production to one aircraft per month in 2016. In January 2016, Boeing confirmed that it was reducing 747-8 production to 0.5 per month beginning in September 2016, incurring a $569 million post-tax charge against its fourth-quarter 2015 profits. The chief reason given was that the recovery of the air cargo market had stalled, resulting in slowed demand for the 747 freighter.
Boeing cited the 747-8F as the main driver behind potential future 747-8 orders. To help reduce production costs in the meantime and maintain the 747 production line's viability, the company plans to integrate the 747 and 767 production lines more closely with each other. Boeing expected the cargo market to improve by mid-2019 and were planning to increase the 747's production rate back to 1/month from then on. However, in July 2016, this production rate increase was cancelled, i.e. 747 production remained at 0.5 per month. At the same time, the company announced another after tax charge of $814 million, reflecting a lower estimation of frames to be produced and revenue realised. In an SEC filing submitted at the same time, Boeing stated that if they were "unable to obtain sufficient orders and/or market, production and other risks cannot be mitigated, [...] it is reasonably possible that we could decide to end production of the 747."
The Boeing 747-8I was intended to fill a niche between the Airbus A380 and the Boeing 777-300ER. The future for the 747-8 passenger version appears limited. Airlines bought the original 747 primarily for its range, not its capacity. The advent of long-range twin-engine jets, notably Boeing's own 777, took away the 747's range advantage. Compared to the 747-8I, the upcoming 777-9X "mini-jumbo jet" is projected to have a lower fuel cost per seat mile and greater cargo capacity, though it has a lower passenger capacity and higher list price; consequently, the 777-9X has totaled more orders than the 747-8I due to airlines placing a high value on fuel efficiency.
For operators who require high capacity on routes such as Emirates Airlines, most have preferred the Airbus A380 as it is an all-new design while the 747-8's lineage is 40 years old, although some have criticized the A380's looks and complimented the 747-8I's appearance. Analysts do not see bright prospects for VLA (very large aircraft - those with more than 400 seats) whose orders have slowed in the mid-2010s, since there are widebody twinjets with similar range and greater fuel efficiency, giving airlines more flexibility at a lower upfront cost.
Volga-Dnepr Airlines signed a memorandum of understanding (MoU) with Boeing for the purchase of 20 more 747-8Fs at the 2015 Paris Air Show. This acquisition was finalized at the 2016 Farnborough Airshow.
On October 27, 2016, UPS Airlines announced an order for 14 747-8Fs with options for an additional 14. The 14 options were then converted to official orders on February 1, 2018. Deliveries are scheduled from 2017 through 2022. On September 7, 2017, it was reported that Turkish Airlines is in negotiations with Boeing for purchasing 8 747-8Is to strengthen its widebody fleet.
On July 2, 2020, media reports state that Boeing intends to end of 747 production in 2022 after the 16 outstanding orders are built and delivered. The demand for four-engine airliners has been flat for several years with most orders going to the freighter version.
The 747-8 is a development of the Boeing 747 that takes advantage of improvements in technology and aerodynamics. The two 747-8 variants feature a fuselage stretch of 18.3 ft (5.6 m) over the 747-400, bringing the total length to 250 ft 2 in (76.25 m). The 747-8 is the world's longest currently operational passenger airliner, surpassing the Airbus A340-600 by 3.1 ft (0.95 m). With a maximum take-off weight of 975,000 lb (442 t), the 747-8 is the heaviest aircraft, commercial or military, manufactured in the U.S.
Compared to the 747-400, the main changes have been to the wings, which have undergone a complete design overhaul. The sweep and basic structure has been kept to contain costs, but the wing is thicker and deeper, with the aerodynamics recalculated. The pressure distribution and bending moments are different, and the new wing for the passenger version holds 64,225 US gal (243 m3) of jet fuel, and the cargo aircraft 60,925 US gal (231 m3). The increased wing span makes the 747-8 a Category F size airplane rather than Category E size, similar to the Airbus A380. The new wing features single-slotted outboard flaps and double-slotted inboard flaps.
Raked wingtips, similar to the ones used on the 777-200LR, 777-300ER, and 787 aircraft, are used on the new 747 variant instead of winglets used on the 747-400. These wingtip structures help reduce the wingtip vortices at the lateral edges of the wings, decreasing wake turbulence and drag, and thereby improving fuel efficiency. Another effort to reduce weight is the introduction of fly-by-wire technology for the majority of the lateral controls.
The extra fuel capacity in the redesigned wing compared to the 747-400 eliminates the need to significantly change the horizontal tail unit to accommodate auxiliary tanks, further saving costs. The 747-8's vertical tail unit is largely unchanged with a height of 63 ft 6 in (19.35 m). The wing's trailing edge and raked tip are made of carbon-fiber composites.
The General Electric GEnx is the only engine available for the 747-8. The 747 engine variant has been adapted to provide bleed air for conventional airplane systems and feature a smaller diameter to fit on the 747 wing.
The 747-400 and earlier versions had proven to be a very popular freighter, carrying around half of the world's air freight. To maintain this position, Boeing designed a freight variant of the 747-8, named the 747-8 Freighter or 747-8F. The company launched the freighter version on November 14, 2005. The 747-8F is the initial model to enter service. As on the 747-400F, the upper deck is shorter than passenger models; the 18-foot-3 1⁄2-inch (5.575 m) stretch is just before and just aft of the wing. 747-8 Freighter was designed with a 975,000 lb (442 t) maximum take-off weight with a payload capability of 308,000 lb (140 t) and a range of 4,390 nmi (8,130 km). Four extra pallet spaces were created on the main deck, with either two extra containers and two extra pallets, or three extra pallets, on the lower deck. The 747-8F is expected to have a 16% lower ton-mile operating cost than the 747-400F and offer a slightly greater range.
Cargolux and Nippon Cargo Airlines were the first customers for the 747-8, placing orders for the freighter variant in November 2005. The firm configuration of the aircraft was finalized in October 2006. Major assembly of the aircraft began on August 8, 2008, and the aircraft first left Boeing's Everett factory on November 12, 2009. The first aircraft was delivered on October 12, 2011, to Cargolux. At its six-month service mark, Boeing announced that initial 747-8F operators had achieved a 1-percent reduction in fuel burn over projections.
In June 2015, Boeing predicted new orders for the 747-8F based on its projections of a 4.7% annual increase in air cargo demand.
The passenger version, named 747-8 Intercontinental or 747-8I was formally launched on November 14, 2005, by Boeing. It can carry up to 467 passengers in a typical three-class configuration over a range of 8,000 nmi (15,000 km) at Mach 0.855. The 747-8I can carry 51 more passengers and two more freight pallets with 26% more cargo volume than the 747-400. Despite initial plans for a shorter stretch than the freighter model, the two variants were designed with the same length, increasing passenger capacity. New engine technology and aerodynamic modifications allow longer range. Boeing has stated that compared to the 747-400, the -8I is to be 30% quieter, 16% more fuel-efficient, and have 13% lower seat-mile costs with nearly the same cost per trip. Boeing states that the 747-8I is the world's fastest commercial jet.
For the 747-8, Boeing proposed some changes to the interior layout of the aircraft. The -8I's upper deck is lengthened compared to the 747-400. Most noticeable is the curved stairway to the upper deck and a more spacious main passenger entrance. The 747-8's main cabin uses an interior similar to that of the 787. Overhead bins are curved, and the center row is designed to look as though it is attached to the curved ceiling, rather than integrated into the ceiling's curve like on the 777. The windows are also of similar size to the type used on the 777, which are 8% larger than those on the current 747-400s. The 747-8 features a new solid-state light-emitting diode (LED) lighting system, which can create mood lighting.
During the initial 747-8 marketing phase, Boeing also proposed creating a revenue-generating "SkyLoft" passenger facility in the crown space above the cabin. This facility would include "SkySuites", small individual compartments with sliding doors or curtains, featuring beds, seating, and entertainment or business equipment. A common lounge area could also be provided. Boeing also proposed smaller, more modest "SkyBunks". Access to the crown area would be via a separate stairway at the rear of the aircraft. Passengers using the SkySuites, sold at a premium price, would sit in regular economy class seats for take-off and landing, and move to the crown area during flight. However, pricing feasibility studies found the SkyLoft concept difficult to justify. In 2007, Boeing dropped the SkyLoft concept in favor of upper-deck galley storage options, which were favored by the airlines. Outfitting the crown space for sleeping remains an option on VIP aircraft, and the first 747-8 BBJ with AeroLoft was produced in 2012.
The first order for the 747-8 Intercontinental was placed by an undisclosed VIP customer in May 2006. Lufthansa became the first airline to order the 747-8 Intercontinental on December 6, 2006. In December 2009, Korean Air announced the order of five 747-8Is. Boeing stated firm configuration for the −8 was reached in November 2007.
Major assembly of the first 747-8 Intercontinental began on May 8, 2010. Assembly of first 747-8I was completed in February 2011, before being unveiled at a rollout ceremony in Everett, Washington, on February 13, 2011. At the time, deliveries were planned to begin in late 2011.
Following gauntlet ground testing the 747-8 Intercontinental's first flight occurred on March 20, 2011 from Paine Field in Everett, Washington. The second 747-8I first flew the following month. After the flight test program the 747-8I was FAA certified on December 14, 2011. At that time, −8I deliveries were planned to begin in early 2012.
During development testing aeroelastic flutter was observed during a test that measured how the aircraft performed if its wing-to-strut join fitting fails at the same time the fuel tanks in the horizontal stabilizer were filled at over 15% of their capacity. To meet FAA regulations, Boeing reported in January 2012 that the 747-8's fuel tanks in the horizontal stabilizers would be closed off to prevent their use until the flutter condition can be resolved; this reduced range by 300–500 nmi (550–930 km). On December 18, 2013, Boeing announced that a series of new performance packages will allow for the reactivation of the tail fuel tanks by early 2014. Earlier 747-8s can also be retrofitted with them.
The first 747-8 Intercontinental was delivered to a VIP customer on February 28, 2012. It was to be outfitted with a VIP interior before beginning service in 2014. The first 747-8I was delivered in May and began commercial service on June 1, 2012, with Lufthansa.
U.S. Presidential aircraftEdit
In 2007, the United States Air Force was seeking to upgrade Air Force One by replacing the VC-25A (two heavily modified Boeing 747-200Bs acquired in the late 1980s). In 2009, Boeing was reported to be exploring a 747-8 proposal, along with a Boeing 787 Dreamliner variant. In January 2015, the Air Force announced the selection of the 747-8 to replace the aging VC-25A for presidential transport. U.S. Air Force Secretary Deborah Lee James said, "The Boeing 747-8 is the only aircraft manufactured in the United States (that) when fully missionized meets the necessary capabilities established to execute the presidential support mission..." In July 2016, Boeing received a second contract for pre-engineering and manufacturing development (EMD) risk-reduction to address "system specification, the environmental control system, the aircraft interior, the electrical and power system and sustainment and maintenance approaches."
On August 1, 2017, Defense One reported that to pay less for the replacement program, the U.S. Air Force purchased two undelivered 747-8I ordered by a bankrupt Russian firm (Transaero); the aircraft had been stored in the Mojave Desert to prevent corrosion. Boeing and the Air Force will retrofit these aircraft with telecommunications and advanced security equipment for the required security level needed by presidential aircraft.
In July 2018, there were 110 Boeing 747-8 aircraft in airline service with Lufthansa (19), Korean Air (17), Cargolux (14), Cathay Pacific Cargo (14), AirBridgeCargo Airlines (11), UPS Airlines (7), Polar Air Cargo (7), Air China (7), Silk Way West Airlines (5), Atlas Air (3), Qatar Airways Cargo (2), Saudia Cargo (2), Nippon Cargo Airlines (1), and CargoLogicAir (1). Previous operators include Global Supply Systems, a contractor of British Airways.
Boeing 747-8I aircraft in special VIP configuration for state leaders have also been ordered. The Qatar Amiri Flight received three VIP Boeing 747-8Is. The State of Kuwait received one VIP 747-8 in 2012. The Royal Flight of Oman received one VIP 747-8 in 2012. The Brunei Government received a VIP 747-8I in 2016. The Morocco Government received one VIP 747-8I in 2017. Worldwide Aircraft Holding operated one VIP 747-8 that was sold to the Government of Turkey. One VIP 747-8I was received by the government of Saudi Arabia, and is used by Crown Prince Mohammed bin Salman.
By early 2019, the backlog and production rates were sufficient to sustain production until late 2022.
Orders and deliveriesEdit
|Nov 15, 2005||Cargolux||–||14||14||–|
|Nov 15, 2005||Nippon Cargo Airlines||–||8||8||–|
|May 30, 2006||Business Jet / VIP||8||–||8||–|
|Sep 11, 2006||Atlas Air||–||10||10||–|
|Nov 30, 2006||Volga-Dnepr Airlines||–||9||6||3|
|Dec 6, 2006||Lufthansa||19||–||19||–|
|Nov 8, 2007||Cathay Pacific||–||14||14||–|
|Dec 7, 2009||Korean Air||10||7||17||–|
|Sep 11, 2012||Air China||7||–||7||–|
|Nov 27, 2012||Unidentified customer(s)||–||4||4||–|
|Jul 9, 2013||Silk Way Airlines||–||5||5||–|
|Oct 10, 2014||AirBridgeCargo||–||7||7||–|
|Oct 27, 2016||UPS Airlines||–||28||15||13|
|Mar 2, 2017||Unidentified customer(s)||1||–||1||–|
|Aug 31, 2017||U.S. Air Force (Boeing VC-25B "Air Force One")||2||–||2||–|
Boeing 747-8 orders and deliveries (cumulative, by year):
Data as of December 31, 2019.
On September 11, 2012, an Airbridge Cargo 747-8F experienced a major engine malfunction that spread a significant amount of metallic debris on the runway. Like in a similar event during pre-flight taxi tests, the low-pressure turbine shaft separated and moved the low-pressure turbine backward braking on surrounding hardware (by design to avoid turbine overspeed). The NTSB issued urgent safety recommendations to the FAA to require ultrasonic scans for midshaft fractures before use of GEnx engines and require repetitive on-wing inspections of the engine to detect cracks before it could reach a critical length.[importance?]
On July 31, 2013, an Airbridge Cargo 747-8F experienced core engine icing that caused engine malfunctions and damage to three engines near Chengdu, China, while en route to Hong Kong; the aircraft landed safely at its destination. Boeing and General Electric are working on software changes to mitigate the effects of core engine icing.
|Seat/cargo capacity||467 in 3-class||303,700 lb / 137.7 t|
|Cargo volume||6,225 cu ft (176 m3)||30,288 cu ft (858 m3)|
|Length||250 ft 2 in / 76.3 m|
|Height||63 ft 6 in / 19.4 m|
|Wingspan||224 ft 7 in / 68.4 m|
|Wing||554 m2 (5,960 sq ft), sweep 37.5°, 8.45 AR|
|Cabin width||20 ft (6.1 m):17|
|MTOW:7–8||987,000 lb / 447.7 t|
|OEW:7–8||485,300 lb / 220.1 t||434,600 lb / 197.1 t|
|Max. payload:7–8||167,700 lb / 76.1 t||292,400 lb / 132.6 t|
|Fuel capacity:7–8||63,034 USgal / 238.6 m³
426,109 lb / 193.3 t
|59,734 USgal / 226.1 m³|
400,218 lb / 181.5 t
|Cruise speed||Mach 0.86 (493 kn; 914 km/h)||Mach 0.85 (488 kn; 903 km/h)|
|MMo||Mach 0.9 (516 kn; 956 km/h)|
|Range||7,730 nmi (14,320 km)[a]||4,120 nmi (7,630 km)|
|Ceiling||43,100 ft (13,100 m)|
|Engines (4×)||66,500 lbf (296 kN) GEnx-2B67|
- Boeing 747 – American wide-body long–range commercial jet aircraft
- Boeing 747-400 – Wide-body airliner, improved production series of the 747
- Boeing Business Jet – Executive transport variants of several Boeing airliners
- Boeing New Large Airplane – 1990s concept for an all-new quadjet airliner in the 500+ seat market
- Boeing VC-25B – Presidential Airlift aircraft under development based on the 747-8 Intercontinental
Aircraft of comparable role, configuration and era
- Airbus A380 – Wide-body double deck aircraft
- BBJ: 8,875 nmi (16,436 km)
- "747 Model Orders and Deliveries summary". Boeing, December 2019. Retrieved January 27, 2020.
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|Wikimedia Commons has media related to Boeing 747-8.|
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