Even 25 years after the B777 was first unveiled, it is still a hard act for the Boeing design
team to follow.
When it was revealed to the world in June 1994 it was the first computer-designed airliner,
the first fly-by-wire airliner, and as the aircraft proved itself in service, it has
proved a commercial success, with more than 1,500 delivered to date.
There is a lot of love for the triple-seven, from airlines, crew, and passengers alike.
Want to know about it?
Well, stay tuned to the video And watch the video till the end.
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And in today's video, we are going to talk about “Things You Did Not Know About The
Boeing 777X.”
So without any further ado, Let's begin.
According to Boeing, the 777X will be 10% more fuel-efficient than competing jets of
a similar size.
Considering that fuel is one of the biggest expenses facing commercial airlines, this
could be a huge selling for the American aerospace manufacturing giant.
By touting the 777X’s efficient properties, Boeing shouldn’t have trouble selling the
777X to commercial airlines.
Boeing also claims that the 777X, when finished, will be the world’s largest twin-engine
jet.
With that said, the smallest variant of the 777X measures between 210 and 242 feet long.
Like other families of jets manufactured by Boeing, the 777X will be offered in multiple
variants.
Boeing announced the 777-8 and 777-9 variants in November 2013.
The former supports up to 384 passengers and has a maximum range of 8,730 nautical miles,
whereas the latter supports up to 426 passengers and has a maximum range of 7,285 nautical
miles.
While there has been a lot of hype around the plane's launch, engine issues and caution
over the plane's flight-control system stalled production.
Mike Fleming, a Boeing vice president, told reporters at the Dubai Airshow that the 737
Max crashes in 2018 and 2019 prompted the US Federal Aviation Administration to tell
Boeing to take a closer look at its 777X systems.
"The accidents caused us to reflect on development programs and what we do, and we're taking
those lessons learned on the Max and extending those onto the next development programs,"
Fleming said.
Like Boeing's 787 Dreamliner, the aircraft is made from composite materials and has larger
windows and a redesigned passenger cabin.
Able to carry more people and fly farther than existing 777 models, Boeing says.
The plane's standout feature is the movable wingtips, which will cut the aircraft's enormous
wingspan from 235 feet down to just under 213 feet, letting the 777X fit on existing
airport taxiways and at the terminal gates where older 777s can operate.
The Airbus A380's 261-foot wingspan forced airports to make expensive modifications when
the double-decker plane debuted in 2007, something Boeing wants to avoid.
As Craver explains, “Airlines can also have one ceiling treatment in one part of the aircraft
and a different ceiling treatment in a different part, with a design cohesion that sees the
spaces seamlessly transition from one to the other very elegantly, enabling airlines to
specify different linings packages to differentiate each class, with a holistic design philosophy
that ties it all together, with lighting, linings, bins ceilings, everything working
together as a system.”
In June at the Paris Air Show, it said that excessive wear inside the 777X's General Electric
GE9X engine was delaying its approval.
Built for the 777X, the GE9x is the largest commercial jet engine ever built.
Compared to the GE90-115B (Boeing 777-300ER), the GE9X engines sport fewer blades, fan blades
made out of a lighter composite, use of a lighter ceramic material, and laminar flow
nacelles made out of composites.
Airlines will be very keen to note the vast improvement in operating costs of this Boeing
777 jet.
It will have a range of 8,200nm (15,185km) and a maximum take-off weight of 344t.
The 777-8X has a range of up to 9,300nm (17,220km) and a maximum take-off weight of 315t.
Boeing decided not to design a fuselage made out of CFRP to reduce the development costs.
Etihad has ordered 25, Emirates has 115 and Qatar 60, Singapore Airlines has 60, and Cathay
Pacific has 25.
Middle Eastern and Asian airlines have placed most of the 777X’s orders.
British Airways and Lufthansa’s only customers in Europe, with US airlines waiting in the
wings.
A delay in the first deliveries of its new wide-body 777X plane is costing the company
$6.5 billion.
First, the plane was delayed due to production issues, and then the plane was delayed due
to the pandemic.
For context, the Boeing 777X was supposed to complete its first test flight in mid-2019,
but that ended up being pushed back to early 2020.
This delay was due to issues with the GE9X General Electric engines on the plane.
"Boeing has shifted the certification to July 2023 and we had a contracted delivery position
for June 2020," Emirates' president Tim Clark told reporters at the five-day event.
"It's anybody's guess as to whether or not they will achieve that."The delay has cost
Emirates millions of dollars as they upgrade old aircraft to retain them longer."To restore
our network, we need all our aircraft and we cannot allow manufacturers to slow us down,"
Clark said.
The cabin on display at AIX is incomplete.
While the renderings accompanying this story illustrate what the cabin will eventually
look like, there are no seats at AIX.
Instead, stools are used to allow attendees to preview the experience.
But the lighting, windows, and curved interiors give a sense of what this aircraft might be
like when it's ready and soaring in the skies.
Boeing is also promoting windows that utilize a dimming effect, already in use on its 787
Dreamliners.
On the 777X, lower pressurization will also be implemented to help passengers feel more
comfortable.
The overhead bins on the 777X accommodate bags positioned on their side -- Craver says
this ensures the luggage fits, but also helps the cabin appear spacious.
A similar concept was touted by Airbus at AIX -- the company is encouraging passengers
to load their roll-on suitcases on their sides in its new Airspace XL bins, with the same
aim of creating more space for more bags.
With ETOPS improvements, there are limited areas in that twins cannot fly.
And with engine improvements, larger airframes are achieving higher capacities.
All these features, however, come at a price.
The 777-9 lists at $425.8 million, compared to $361.5 million for the 777-300ER, and $418
million for the 747-8.
It is Boeing's most expensive aircraft to date.
But Airbus takes the top place for the most expensive aircraft, with the A380 list price
of $445.6 million.
More importantly, though, the A350-1000 comes in lower at $366 million.
Of course, most airlines negotiate prices lower than the list price.
The 777 Freighter (777F) is an all-cargo version of the 777-200LR.
With a maximum payload of 226,000 lb (103,000 kg), cargo capacity is similar to the 243,000
lb (110,000 kg) of the 747-200F.
During takeoff, the 777's engines push 2 million cubic feet of air per minute.
That's enough air to keep humans breathing for 44 days.
Any new jet needs certification from the home regulator and other regulators as well, and
for now, Boeing is completing an extensive test program to display to the FAA that the
jet is safe to fly.
Four prototype jets of the 777X have collectively flown over 1,700 hours in over 600 test flights.
This was a part of the update from Mike Fleming as well today.
While he did not indicate how many more hours are needed on the book for the certification,
he did indicate that the 787 Dreamliner went through 3,509 flight hours to secure its FAA
certification.
Fleming did not indicate a timeline for the certification, but he mentioned, “As a result
of what happened with the MAX, the regulators are being, just like Boeing is, more reflective
on how they approach certification.
They’re being more reflective on what they do and how they do it.”
Indeed, cabin size is a major aspect of the B777X, with the aircraft having again in cabin
width over the B777, despite having the same external fuselage cross-section.
By redesigning the sidewalls and fitting thinner insulation, the internal cabin width has been
carved out from 231in (587cm) of the B777-300ER to 235in (597cm).
Four inches may not sound like much, but it represents a significant engineering and design
effort, and that extra width gives airlines more design flexibility and scope for expression
– something that airline customers have indicated to Boeing that they want.
The body of the aircraft will be built of advanced aluminum-lithium alloy.
The Boeing 777X will import a number of the flight deck and flight control systems from
the Boeing 787 Dreamliner.
The 38.3cm flight deck display will be similar to that of the 787.
The cabin of the 777X will be spacious with larger windows, new lighting, and new architecture.
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