Talk:Boeing 777X

Seating capacity

In the Boeing 777 page, seating in a 3-class configuration for the Boeing 777-300ER is listed as 365 (8F + 70J + 273Y) and in the Boeing 777X page, the Boeing 777-9 is listed as 349 (8F + 49J + 292Y). Considering that the Boeing 777-9 is 2.84m longer than the Boeing 777-300ER with the same cabin width across the two, the Boeing 777-9's seating capacity should be larger than the Boeing 777-300ER and not the other way around. — Preceding unsigned comment added by 196.8.123.36 (talk) 15:10, 10 December 2018 (UTC)

See the refs: ACAP for 777-2LR 3ER (p.24) and 777-9 (p.15). LoPas have different assumptions: for the -9, the 349 seat layout is with 8F at 4-abreast beds, 49J at 7-abreast 85", 292Y at 10-abreast 32", while the 300ER have 12F at 6-ab 87" + 42J 7-ab 50" + 316Y 9-ab 32". -9 J seats have as much space as -300ER F. If the -9 had the 300ER premium seat density, it would have 12F + 83J +316Y = 411 seats, while if the -300ER had the -9 premium seat density, it would have 8F+ 25J +292Y = 325 seats.--Marc Lacoste (talk) 15:36, 10 December 2018 (UTC)

Engine selection

This section is very unclear. Different parameters and different units are quoted for the various engine choices, which makes comparison difficult.Nigelrg (talk) 20:23, 19 January 2019 (UTC)

The engine diameter, bypass ratio, pressure ratios, and fuel burn reductions are listed in the same order for each engine option, though some measures are not listed for every engine option. I tried to make the info more consistent but there's not much else that can be done. Reread it and see if it is makes any more sense now. -Fnlayson (talk) 23:33, 19 January 2019 (UTC)

Order

Lufthansa changed their 777X order. They converted 14 of their actual orders to 14 options. So just 6 of the 20 ordered 777-9X remain for the fleet delivery. MaverickMitchell777 (talk) 07:35, 22 January 2020 (UTC)

Fuel cost per seat of the 777x

It is simply not known as of yet, since there is not real flight data. The first paragraph of WP:CRYSTALBALL Starts with: Wikipedia is not a collection of unverifiable speculation or presumptions. Wikipedia does not predict the future. Why is it so hard to understand that? --Rabenkind (talk) 21:57, 27 January 2020 (UTC)

The source is Willie Walsh stating "This aircraft will provide [...] fuel cost per seat improvements of 30 per cent compared to the 747". Walsh is reasonably informed on the predicted performance of the airplane he is buying. He has performance guarantees, and updated aircraft more often beat the brochure specs. This is not a prediction like tomorrow's lottery. In CRYSTALBALL, this falls not within points 1, 2, 3, 4, or 5. CRYSTALBALL does not forbid anticipation, it forbids unreferenced anticipation.--Marc Lacoste (talk) 22:31, 27 January 2020 (UTC) Per Wikipedia:BOLD, revert, discuss cycle, you should be leaving the article as it was before (this was added 11 months ago!), and gain consensus in talk.

Not even Boeing themselves will know as of yet if it's 29%, 30%, 31% or something else in the end. Those "guarantees" only make sure if it's not the promised amount a penalty must be paid. And how does point 5 not apply here, leave alone the very first words - which I already quoted - of that section? I don't think it is too much to ask to wait until actually verifiable data is in. In the end Wikipedia is trying to be an encyclopedia. --Rabenkind (talk) 23:27, 27 January 2020 (UTC)

And nobody can pinpoint it within 1%, it's the margin of error, or the difference between a dirty or clean airplane. Exact fuel burn is hard to source, and having an order of magnitude is useful: here, it underline the 2-3 generations improvement from the 744. There won't be more precise figures once the aircraft is certified. To reply point by point :

not a collection of unverifiable speculation or presumptions. not the case : it is verifiable through the ref.

5. not a collection of product announcements and rumors the goal is to avoid stubs. Not the case here, the 777X coverage is enough to have a dense, sourced article.

Remember, the goal of CRYSTALBALL is to avoid wildly unverifiable sci-fi, while allowing forecasts and theories stated by reliable, expert sources. Input from other editors would be welcome!--Marc Lacoste (talk) 06:34, 28 January 2020 (UTC)

Tenses inconsistent

I’m not sure of proper etiquette regarding articles that were written years ago with references to future dates. Are they to be corrected when the future date becomes current or past? I found this article hard to read due to inconsistent tenses. Past dates are written in future tense (eg. the wings will be designed in 2015) and in the next paragraph past tense is used (eg. the testing was done in 2018). I have noticed this, to a lesser extent, in other articles, but this one us full of incorrect tenses. — Preceding unsigned comment added by Sjones5922 (talk • contribs) 04:02, 28 January 2020 (UTC)

Indeed that's the case with an in-progress article. Go ahead, be WP:Bold and correct it!--Marc Lacoste (talk) 06:44, 28 January 2020 (UTC)

Cargo Capacity values

The cargo capacity for the 777-9 is listed as 8,131 cu ft (230.2 m3) while the cargo capacity of the 777-8F is listed as 27,056 cu ft (66.1 m3) - this doesn't seem right? 211.30.150.6 (talk) 09:53, 6 July 2023 (UTC)

The 777-9's cargo is only below the floor since it is a passenger version. The 777-8F is a freighter version and has cargo space both below and above the floor. -Fnlayson (talk) 14:10, 6 July 2023 (UTC)

Requesting a change from 66.1 m^3 to 776.1 m^3 for the the 777-8F cargo capacity. The cubic feet (cu ft) are correct, but the conversion to cubic meters (m^3) is missing a "7". Davidenjoyslearning (talk) 23:00, 11 July 2023 (UTC)

• Typo/error corrected. Thanks -Fnlayson (talk) 15:05, 12 July 2023 (UTC)

Add the freighter version off the 777X

There is a announced freighter version of 777X called 777XF (not released yet), which literally only consists of the 777-8F Emrys382 (talk) 14:25, 13 July 2023 (UTC)

The freighter is already mentioned in the § Variants section of the article. Rosbif73 (talk) 14:41, 13 July 2023 (UTC)

777-8 Passenger version changes

With the changes to the 777-8F, Boeing made changes to the passenger version of the 777-8. The length of the revised 777-8 passenger version is the same as the 777-8F. This has increased the two-class passenger capacity. Boeing also revised the stated range of the 777-8.

More information can be found here: https://www.boeing.com/commercial/777x/#/technical-specs Meh130 (talk) 22:58, 18 July 2023 (UTC)

Semi-protected edit request on 25 August 2023

In the specification section, the fuel capacity is correctly mentioned except in ton. There is no way that 197,360 l of jet fuel could weigh 197.2 t. The correct figure in my opinion is 154.94 t. Umbra55 (talk) 10:01, 25 August 2023 (UTC)

 Already done The unsourced content was removed. M.Bitton (talk) 22:59, 25 August 2023 (UTC)

Incorrect detail about stress test

In the development > production > 2019 section, the September stress test of the Boeing plane is mentioned. It says that the cargo door blew off, but it was actually the passenger door which blew off (correctly stated a few sentences later).

The mistake is probably due to outdated news sources that were later corrected as per the Seattle Times (the source referenced by the article section in question, anyway). Seattle Times article 50.29.227.93 (talk) 07:43, 5 October 2023 (UTC)

No need. This is already clarified later the same paragraph. -Fnlayson (talk) 13:32, 5 October 2023 (UTC)

Launch Customer

"Launch" says Lufthansa, "Orders" says Emirates (although almost a year later)? 2003:DC:F71A:E200:E96E:822:1E67:CA2F (talk) 21:02, 13 February 2024 (UTC)

The launch customer is the first one to order the airliner type, not necessarily the customer with the most orders. -Fnlayson (talk) 21:09, 13 February 2024 (UTC)

Semi-protected edit request on 5 March 2024

Change Orders Table to include all models 777X (777-8, 777-9, 777-8F)

Adjust "Boeing 777X orders (without ASC 606 adjustment)" from the format of: "Initial Date" "Customer" "777-8" "777-9" "777-8F" "Total"

 [Unchanged]    Lufthansa                  20          7       27 [1]
 [Unchanged]      Etihad                   25                  25
 [Unchanged]      Cathay                   21                  21 
 [Unchanged]     Emirates       35        170                 205 [2]
 [Unchanged]       Qatar                   40         34       74 [3]
 [Unchanged]        ANA                    18          2       20 [4]
 [Unchanged]  Unidentified                                     10*
 [Unchanged]    Singapore                  31                  31
 [Unchanged]     British                   18                  18
 [Unchanged]    Cargolux                              10       10
 [Unchanged]    Air India                  10                  10
 [Unchanged]    Silk Way                               2        2
March 5, 2023   Ethiopian                   8                   8 [5]
              "Totals"          35        361         55      461

Note customer Tabs are to remain unchanged from their actual titles "*" indicates no known selected variant

[1] https://boeing.mediaroom.com/2022-05-09-Lufthansa-Group-Selects-New-777-8-Freighter,-Orders-Additional-787s [2] https://www.emirates.com/media-centre/emirates-places-us-52-billion-wide-body-aircraft-order-at-dubai-airshow-2023/#:~:text=11%3A00%20AM-,Emirates%20places%20US%24%2052%20billion%20wide%2Dbody%20aircraft,order%20at%20Dubai%20Airshow%202023&text=55%20additional%20Boeing%20777%2D9s,GE9X%20engines%20to%20460%20units. [3] https://investors.boeing.com/investors/news/press-release-details/2022/Boeing-Launches-777-8-Freighter-to-Serve-Growing-Demand-for-Cargo-Enhanced-Environmental-Performance/default.aspx [4] https://boeing.mediaroom.com/2022-07-18-Boeing-and-ANA-HOLDINGS-Confirm-737-MAX-Order,-Selection-of-777-8F-for-Future-Fleet [5] https://www.reuters.com/business/aerospace-defense/ethiopian-airlines-places-order-eight-boeing-777x-jets-2024-03-05/#:~:text=March%205%20(Reuters)%20%2D%20Ethiopian,in%20a%20statement%20on%20Tuesday. Lamp1009 (talk) 23:51, 5 March 2024 (UTC)

No, the Ethiopian deal is not a firm order yet; see the Order history section. The Orders table itself is only for firm orders. -Fnlayson (talk) 00:29, 6 March 2024 (UTC)

@Lamp1009: Your account is autoconfirmed, so you can edit this and other semiprotected articles. RudolfRed (talk) 02:35, 28 March 2024 (UTC)