(CNN) – The Largest Passenger Airplane the world made its debut this spring – but we will not see the Boeing 777X go to the sky by the end of the year.
The jetliner uses GE Aviation's new GE9X engine, the world's largest commercial engine, which was presented to the public at the Paris Air Show this week.
However, GE Aviation CEO David Joyce confirmed during a press conference at Paris Airport on Monday that due to an anomaly in the GE9X compressors, a redesign and further testing would be required.
This means that the first flight of the Boeing 777X, originally expected this summer, has been pushed forward until late autumn.
On March 13, the first Boeing 777X was presented to the company's employees inside the mainframe unit of the aircraft at Everett, Washington.
The scheduled festival festival was canceled due to the crash that occurred earlier that month of Ethiopian Air Flight 302, a Boeing 737 MAX 8, and the second ship involved in the disaster.
At 252 feet, the 777X is longer than its predecessor, the 777-300ER, and the extremely stretched Airbus A340-600.
It will be even farther from the nose than the current record holder, in 747-8, the latest edition of Boeing's "Queen of Heaven", whose ancestor changed the aviation flew 50 years ago.
The 777-9 is the largest of the 777X models of Boeing's jet aircraft program.
With this huge length, the airplane is designed to accommodate between 400 and 425 passengers in two categories and to fly 7,600 nautical miles, more than 14,000 kilometers.
The number of seats will vary according to what each airline chooses for the interior but promises to be the largest dual-engine plane of all time when it starts to fly passengers next year.
A second, no less impressive but smaller model will follow. The 777-8 will accommodate 350 to 375 passengers and will have a durability of more than 17 hours. Covering 8,700 nautical miles, or more than 16,000 kilometers, the plane is a Boeing challenger at the top of the Airbus A350ULR as the world's largest airliner.
What will passengers get into the last large body that Boeing will build?
Although the outer diameter of the new aircraft's shaft is the same as that of the 25-year-old 777, Boeing has redesigned the inside of the barrel to be able to update the interior.
By changing the design of the cab sides and rear structures, the cabin will be about four inches wider than the heritage level. This may not sound great, but could be translated into almost half an inch of additional seat width compared to there are currently 10 passengers of economy class sitting in each row in most 777 people.
But even with this extra space, they can not change much, according to travel analyst Henry Harteveldt of the Atmosphere Research Group.
"The new design of the cabin wall has the potential to allow wider seats, especially in the economy, and it is great if airlines choose to take advantage of it." My expectation is that from the desire to keep things cohesive and reduce costs, airlines will probably place the same economy positions at 777X as they have in 777 heritage, "says Harteveldt on CNN Travel.
The upper bins of the new aircraft are larger so that passengers can better store the ever-increasing amount of carry-on luggage that brings most flights.
Changes in the structure of the hidden shaft will give the 777X larger windows than the current version of the airplane, and airlines will have the option of installing electronically distorted window shades (EDWs), such as those found in Boeing's 787 Dreamliner.
EDW Gentex Corporation reports that these latest EDW technologies will block 99.999% of visible light and operate at twice the speed of current.
According to Boeing, the new interior architecture of the 777X, lighting, comfort and comfort will be inspired by 787. Like the Dreamliner, the cabin will be pressed at a low, 6,000 ft, making a long flight easier on the body.
The innovative folding fin of the 777X.
The wing is the thing
Boeing has invested more than $ 1 billion in a new factory to build the advanced 777X carbon fiber wing, located at the Everett aircraft factory with twin-aisle aircraft.
The new wing is surprisingly huge, with a wing over 235 feet. With the new wing, the 777X will fly more efficiently and deliver fuel savings to airlines. But the huge wings come with some challenges.
Airlines want to operate 777X at airports currently serving 777 jets, which have a smaller opening of 213 ft. Fins.
To solve this problem, Boeing's engineers have created a unique wing-wing mechanism, the first for a civilian aircraft.
On the ground, the outer 12 feet of each wing will be folded vertically, with special hardware and locking software to simplify the process of folding and unfolding the pilots and ensuring that the plane will always fly with the flaps extensively.
The folding flap system allows the 777X to fit into the existing gates that handle the older 777.
Greater than before
The powerful Boeing 777X engine.
A super-stretched shaft and huge fins also need two turbocharged engines.
Imagine this – you fly into a single Boeing 737 corridor, the most jetled passenger jet. Look around the plane of the airplane's spindle.
You could sit in the middle of a General Electric GE9X engine. In fact, the GE9X is even larger than the 737 fuselage.
Two of these massive turbofans with a diameter of 134 inches will feed 777X, each of which produces 105,000 pounds of thrust.
These are less than 10,000 pounds from the slightly smaller but stronger GE90 driving the current 777-300 – a result of 25 years of engine development and improvements in the aerodynamics of the shaft.
A brand new airplane?
With new wings, new engines and improved cabin and embedded systems, perhaps the 777X is more than an improved 777 and is worth a new name.
When Airbus decided to upgrade its large body A330, it eventually changed so many things on the plane that was renamed A350.
"Naming a plane is a bit arbitrary and there is the argument that the 777X is indeed a development of the original 777 but quite different to justify here the identity of" X ", says Harteveldt." Of course, there is also high consumer awareness and fairness in the name of 777 aircraft ".
So, in 2020, when you see a huge jetliner ranking in your gate with its fins folded like a fighter on the deck of an airplane, you'll be ready to fly into Boeing's new flagship.