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Boeing 777-9 vs. Boeing 787-8

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777-9

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787-8

Price (USD)
$442 Million$224 Million
First Flight
20202009
Body Type
Wide-bodyWide-body
Length
76 m251 ft
56 m186 ft
Wingspan
71 m235 ft
60 m197 ft
Wing Area
516 m²5,561 ft²
377 m²4,058 ft²
Fuselage Width
6 m20 ft
5 m18 ft
Height
19 m64 ft
16 m55 ft
Max Takeoff Weight
351,500 kg774,925 lbs
227,900 kg502,433 lbs
Number of Engines
22
Engine Options
General Electric GE9XGeneral Electric GEnx / Rolls-Royce Trent 1000
Max Thrust Per Engine
489 kN110,000 lbf
280 kN64,000 lbf
Max Total Thrust
978 kN220,000 lbf
560 kN128,000 lbf
Fuel Capacity
158,900 l41,977 gal
126,200 l33,339 gal
Range
13,500 km7,289 nm
13,620 km7,354 nm
Cruise Speed
905 km/h562 mph
903 km/h561 mph
Typical Seating
426 pax242 pax
Max Seating
475 pax381 pax

What Are the Differences Between the Boeing 777-9 and Boeing 787-8

Boeing 777-9 vs Boeing 787-8 Size Comparison

  • At 76.70 meters, the Boeing 777-9 is 20 meters longer than the Boeing 787-8.
  • With a wingspan of 71.80 meters, the Boeing 777-9 is 11.70 meters wider from wingtip to wingtip.
  • The Boeing 777-9 and Boeing 787-8 have heights of 19.70 meters and 16.90 meters respectively - making the Boeing 777-9 2.80 meters taller.

Boeing 777-9 vs Boeing 787-8 Range

  • Boeing 787-8’s range of 13,620 kilometers is greater than Boeing 777-9’s range of 13,500 kilometers. Therefore, the Boeing 787-8 can fly nonstop approximately 120 kilometers further.
  • The Boeing 777-9 can hold 41,977 gallons of fuel, which is 8,638 gallons more than the Boeing 787-8’s tank capacity of 33,339 gallons.

Boeing 777-9 vs Boeing 787-8 Seating

  • In a typical seating configuration, the Boeing 777-9 can accommodate 426 passengers, which is about 184 passengers more than Boeing 787-8’s seating capacity.
  • The Boeing 777-9’s max seating capacity is 475 passengers, compared to 381 passengers of the Boeing 787-8.

About the Boeing 777-9

The Boeing 777-9, commonly referred to as the 777X, represents a significant leap in wide-body aircraft design and technology. Launched in 2020, this aircraft is the latest and largest variant in the renowned 777 series, incorporating state-of-the-art advancements to set new standards in aviation.

Spanning 76.7 meters (251.7 feet) in length, the 777-9 is distinguished by its impressive dimensions, making it the world's longest commercial aircraft. Its wingspan of 71.8 meters (235.4 feet) features innovative folding wingtips – a first for commercial aviation. This design allows the aircraft to maintain airport compatibility while offering enhanced aerodynamic efficiency. Boeing equipped the 777-9 with all new, massive GE9X engines. These powerplants are capable of delivering a total maximum thrust of 978.0 kN (220,000 lbf). These engines, combined with the aircraft's refined aerodynamics, enable a range of approximately 13,500 kilometers (7,289 nautical miles), positioning the 777-9 as a top contender for long-haul routes.

In terms of passenger capacity, the 777-9 is designed to accommodate up to 426 passengers in a typical three-class configuration, with a maximum capacity of 475 passengers. Economy has a 10 abreast (3-4-3) seating configuration. This setup reflects Boeing's focus on passenger comfort and efficiency, incorporating features like wider cabins, larger windows, and enhanced cabin pressurization. The introduction of the Boeing 777-9 was a response to market demands for larger and more efficient aircraft. It competes directly with the Airbus A350-1000 for the king of modern, efficient large, wide-body long-haul aircraft.

The 777-9's advanced features, including improved fuel efficiency, reduced noise footprint, and cutting-edge cabin amenities, make it a highly attractive option for airlines looking to modernize their fleets. Airlines that have already submitted orders for the 777-9 includes Emirates, Qatar Airways, Lufthansa, Cathay Pacific, Air India, and Etihad Airways. Notable for its production journey, the Boeing 777-9's development involved extensive use of new technologies and materials, setting a precedent in aircraft manufacturing. The use of composite materials, advanced systems integration, and groundbreaking wing design are among the factors that highlight Boeing's innovation.

In conclusion, the Boeing 777-9 (777X) marks a new era in commercial aviation, offering airlines unparalleled efficiency, range, and passenger experience. As the largest twin-engine jet in the world, it is poised to become a pivotal player in the future of long-haul travel, reflecting the culmination of Boeing's expertise in aircraft design and technology. Introduction of the 777X is currently set for 2025.

About the Boeing 787-8

The Boeing 787-8, as the first variant of the revolutionary 787 Dreamliner series, marked a new chapter in commercial aviation when it took to the skies in 2009. This modern wide-body twinjet made its introduction into commercial aviation in 2011 with All Nippon Airways. Since then, the entire Dreamliner family has been pivotal for efficient, point-to-point routes.

Spanning 56.7 meters (186.1 feet) in length with a wingspan of 60.1 meters (197.2 feet), the 787-8 is distinguished by its sleek and aerodynamic design. The aircraft boasts a wing area of 377.0 square meters (4058.0 square feet), which plays a critical role in its fuel-efficient performance. One of the most notable features of the 787-8 is its extensive use of composite materials, including carbon fiber reinforced polymer, accounting for a significant portion of its primary structure. This use of advanced materials results in a lighter airframe, leading to reductions in fuel consumption and operational costs, while also enhancing structural strength and durability. From the outside, 787s are discernible by their rounded noses, raked wingtips, and engine chevrons (serrated edges).

Equipped with either General Electric GEnx or Rolls-Royce Trent 1000 engines, the 787-8 offers a total maximum thrust of 560.0 kN (128,000 lbf). These engines, combined with the aircraft's optimized aerodynamics, enable it to achieve a range of approximately 13,620 kilometers (7,354 nautical miles). This extended range, coupled with its fuel efficiency, makes the 787-8 a viable option for airlines to operate long-haul flights with lower environmental impact.

Inside, the Boeing 787-8 typically seats 242 passengers in a standard three-class configuration, but it can accommodate up to 381 passengers in a high-density setup. The cabin of the 787-8 has been designed with passenger comfort at its core, featuring larger windows that are electronically dimmable, higher humidity levels, and a lower cabin altitude pressure. These features significantly enhance the passenger experience, particularly on long-duration flights, by reducing fatigue and improving overall comfort.

The 787-8 competes in the commercial aviation market with aircraft such as the Airbus A330-900neo. Its introduction was a strategic move by Boeing to provide airlines with an aircraft that combines operational efficiency with advanced passenger comfort amenities. The aircraft's innovative design and environmental considerations have made it a preferred choice for various airlines, including All Nippon Airways, United Airlines, Air Canada, Etihad Airways, and LATAM Chile. These carriers have utilized the 787-8's capabilities to effectively serve a broad range of international and transcontinental routes.

The development and deployment of the Boeing 787-8 have been characterized by a shift towards more sustainable and efficient air travel. Its use of cutting-edge materials, coupled with state-of-the-art systems, represents a significant advancement in aircraft design. As a result, the 787-8 has set new standards in terms of operational efficiency, reduced carbon emissions, and enhanced passenger comfort, thereby playing a pivotal role in the evolution of modern long-haul aviation.

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Values shown may not be 100% accurate, as some metrics are averages or only represent certain production years and configurations. Engine specs are based on the best options available.

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