What is the difference between 777X and 777 er?

The first big difference between the 777X and the 777-300ER is the wingspan. Both 777X variants have a wingspan of 71.8 meters, roughly 15% bigger than the 777-300ER's wingspan. Because the wingspan is so huge, the wings' actual ends need to fold upwards to allow the plane to use normal gates.



The primary difference between the classic Boeing 777-300ER and the new 777X (777-8 and 777-9) lies in the wings and the engine technology. The 777X features a massive, carbon-fiber composite wing that is so wide it requires "folding wingtips" to fit into standard airport gates—a first for commercial aviation. This wing design allows for much higher aerodynamic efficiency. The 777X is powered by the GE9X engine, which is the largest and most powerful jet engine in the world, offering a 10% reduction in fuel consumption and emissions compared to the GE90 engines on the 777-300ER. Inside, the 777X adopts features from the 787 Dreamliner, such as larger windows, a lower cabin altitude, and higher humidity to reduce jet lag. While the "ER" (Extended Range) was the long-haul workhorse of the 2010s, the 777X is designed to be the ultra-long-haul leader of the 2020s, carrying more passengers (up to 426 in the 777-9) over even greater distances with significantly lower operating costs for the airlines.

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While the 777X offers unrivalled dimensions, advanced materials, and cutting-edge engine technology, the A350 shines with its lightweight composite airframe, advanced aerodynamics, and superior fuel efficiency.

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It is 9.4 ft (2.9 m) longer than the -300ER for a 251 ft 9 in (76.7 m) length. It will seat typically 426 passengers over a range of 7,285 nmi (13,500 km; 8,383 mi).

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For Emirates, which currently maintains a fleet exclusively of Airbus A380 and Boeing 777 aircraft, the future is clearly the 777X. For this reason, the carrier has placed a massive order split between 777-8 jets to replace aging 777s and 777-9s to replace its Airbus Super Jumbos.

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"Emirates is the biggest operator of Boeing 777 aircraft, and today's order cements that position," said HH Sheikh Ahmed bin Saeed Al Maktoum, Chairman and Chief Executive, Emirates Airline and Group. "We've been closely involved in the 777 program since its start up until this latest generation of 777X aircraft.

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As it is a twinjet, the aircraft is more economical to operate than some larger quadjets, like the Airbus A380 or the Boeing 747. The 777-300ER, despite being powered by only two engines, does not necessarily sacrifice capacity. Air Canada, for example, fits as many as 450 passengers onboard some of its 777-300ERs.

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The Boeing 777 is the best-selling long-haul carrier in the history of aviation. It has an exceptional life-span of 30 years, but what's the secret behind this record-breaking longevity? In this film, a 777 is taken apart, inspected, and entirely refurbished.

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In May 2004 Boeing delivered the first 777-300ER, which carries 386 passengers with a range of 7,825 nautical miles (14,490 km).

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The Airbus A380 can reach speeds of more than 1,000 kilometres per hour! Now the Boeing 787 Dreamliner (907 km/h) and Boeing 777 (905 km/h) aren't that fast, but still three times faster than a Formula 1 racing car. See below the speeds of the most common aircraft on Schiphol.

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Haven't flown those on BA, but the A350 is much quieter than the B777 and would be my choice for that reason alone. You're also likely to have a newer cabin, unless BA refurbished the 777s. Our flight between Denver and Heathrow is on an A350.

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However, the 777's primary competitors are the common fuselage A330-A340 series.

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Currently, the world's biggest international airline has on order 50 A350-900s, 30 787-9s and 115 Boeing 777Xs. The airline operates 119 A380s, 123 Boeing 777-300ERs and 10 Boeing 777-200LRs. The 777X aircraft will replace the A380s, while the A350s and 787s will eventually replace the 777s.

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