Search found 18195 matches

by Revelation
Sat Jul 21, 2018 8:58 pm
Forum: Civil Aviation
Topic: Reuters: Airbus is studying A321XLR with extended range over LR
Replies: 348
Views: 47752

Re: Reuters: Airbus is studying A321XLR with extended range over LR

Finding underutilized space in the center wing box is great for all the family members, as pointed out by Astuteman. Problem is no-one has been able to show us where there might be under-utilised space in the wing box that could be used for additional tankage. Seems a bit implausible given the natu...

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by Revelation
Sat Jul 21, 2018 5:10 pm
Forum: Civil Aviation
Topic: Reuters: Airbus is studying A321XLR with extended range over LR
Replies: 348
Views: 47752

Re: Reuters: Airbus is studying A321XLR with extended range over LR

No one from Airbus has mentioned using the carbon fiber wingbox for A321XLR yet, but if using it provided more fuel volume and less structural weight at the same time this would of course be fabulous. The down side of that is the cost of certifying that cfrp wingbox, and introducing it into product...

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by Revelation
Sat Jul 21, 2018 3:19 pm
Forum: Civil Aviation
Topic: A350 gets Chinese CAAC type certification
Replies: 11
Views: 2762

Re: A350 gets Chinese CAAC type certification

ikolkyo wrote:
Can’t believe it took this long, ridiculous.

Makes me wonder how many apartments in London and Paris Airbus had to buy...

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by Revelation
Sat Jul 21, 2018 3:13 pm
Forum: Civil Aviation
Topic: Reuters: Airbus is studying A321XLR with extended range over LR
Replies: 348
Views: 47752

Re: Reuters: Airbus is studying A321XLR with extended range over LR

..... an expansion of the current centre tank. replacing a set of 3 ACTs with a single contiguous tank that uses the full x-section available should save quite a bit of weight and leverage significant volume efficiencies. sole downside: unremovable. Also this might not be viewed as an enhancement f...

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by Revelation
Sat Jul 21, 2018 3:05 pm
Forum: Civil Aviation
Topic: A380 - Two VERY Different Views of the Future
Replies: 107
Views: 14615

Re: A380 - Two VERY Different Views of the Future

Like with the Dreamliner where Boeing sold the B787 as a point to point aircraft instead of a B767 replacement that it really was, Boeing is now trying to sell a NMA for more than it is, ie a B757 replacement. Do you honestly think the actual 787 customers, the airlines, paid even the slightest att...

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by Revelation
Sat Jul 21, 2018 2:23 pm
Forum: Civil Aviation
Topic: Reuters: Airbus is studying A321XLR with extended range over LR
Replies: 348
Views: 47752

Re: Reuters: Airbus is studying A321XLR with extended range over LR

Thanks as always for a very well reasoned post. You've mentioned A32x's relatively smaller wing fuel capacity in the past. It'll be interesting to see where they find room for c. 2t (your working figure) to 4t (mentioned in Seattle Times report above) more fuel. And indeed it is interesting to consi...

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by Revelation
Sat Jul 21, 2018 1:21 am
Forum: Civil Aviation
Topic: Did DL's order for the A-220 signal the end of the 717?
Replies: 43
Views: 9060

Re: Did DL's order for the A-220 signal the end of the 717?

CarlosSi wrote:
Shorter range/lower MTOW version of the a220, one of the two if IIRC, so it would be a good replacement for those short MD88 routes out of ATL alongside the a321s to take the denser routes.

As per one of our threads here, DL is already taking software de-rated versions of A220 to save $$$.

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by Revelation
Fri Jul 20, 2018 6:07 pm
Forum: Military Aviation & Space Flight
Topic: Best Replacement Engines for the B52
Replies: 113
Views: 17292

Re: Best Replacement Engines for the B52

The only potential snagup is the Air Force's love for PW engines. Hopefully not going too off topic but does anyone have some justification for the depth of the USAF/P&W relationship, is there a watershed moment when this relationship cemented? P&W is the one engine maker that predates the ...

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by Revelation
Fri Jul 20, 2018 4:35 pm
Forum: Civil Aviation
Topic: Reuters: Airbus is studying A321XLR with extended range over LR
Replies: 348
Views: 47752

Re: Reuters: Airbus is studying A321XLR with extended range over LR

... I see current A321 more as a 797 market spoiler rather than true competitor. A market spoiler most definitely is a competitor. see 748. I see it differently. A competitor is something with a lot more overlap of capabilities, a spoiler is an alternate that can only be used with noticeable compro...

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by Revelation
Fri Jul 20, 2018 12:37 pm
Forum: Civil Aviation
Topic: Crunching numbers of Chinese governmental subsidies on international routes: A sneak peek
Replies: 11
Views: 1923

Re: Crunching numbers of Chinese governmental subsidies on international routes: A sneak peek

Given this is China, we don't know if city government X funding subsidy for route Y actually means that funding ends up underwriting the route. It could very well end up buying apartments in London, etc.

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by Revelation
Fri Jul 20, 2018 12:21 pm
Forum: Civil Aviation
Topic: Airbus And Boeing 2018 Orders
Replies: 328
Views: 78383

Re: Airbus And Boeing 2018 Orders

Momo1435 wrote:
Revealed:

Excellent Revelations! ;)

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by Revelation
Fri Jul 20, 2018 12:09 pm
Forum: Civil Aviation
Topic: Boeing 797 Discussion Thread - 2018
Replies: 2578
Views: 318604

Re: Boeing 797 Discussion Thread - 2018

Seems Boeing's sales guy is emphasizing that a CFRP fuse is still getting very strong consideration. “We are committed to continuing looking at a composite structure,” said Boeing sales chief Ihssane Mounir. “The production system continues to benefit from the composite technology and what we learne...

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by Revelation
Fri Jul 20, 2018 11:53 am
Forum: Civil Aviation
Topic: Boeing looks to FedEx to expand NMA business case
Replies: 84
Views: 8768

Re: Boeing looks to FedEx to expand NMA business case

They have also decided to delay the launch decision till end of 2019 No, they didn't. https://www.flightglobal.com/news/articles/farnborough-nma-development-window-narrows-to-six-y-450239/ says: Boeing now plans to make a launch decision on the New Mid-market Airplane (NMA) in 2019 but remains comm...

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by Revelation
Thu Jul 19, 2018 12:58 pm
Forum: Civil Aviation
Topic: Hawaiian Airlines firms order for 10 787-9's plus 10 options
Replies: 47
Views: 8823

Re: Hawaiian Airlines firms order for 10 787-9's plus 10 options

That means they are unhappy with their current longhaul fleet of A 330 and plan to phase them out? AFAIK these frames are still rather new.... No. At the time they made their A330 order they felt the A330 was the best match to their needs. At the time they made their B789 order they felt the B789 w...

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by Revelation
Thu Jul 19, 2018 12:13 pm
Forum: Civil Aviation
Topic: Reuters: Airbus is studying A321XLR with extended range over LR
Replies: 348
Views: 47752

Re: Reuters: Airbus is studying A321XLR with extended range over LR

This seems like a smart incremental step...picking the low hanging fruit first. With Boeing pushing the launch, (and the final design), of the 797 further out, there really isn't any pressing need for Airbus to radially modify the 321. I have no doubt that stretches and new wings have their own off...

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by Revelation
Thu Jul 19, 2018 12:06 pm
Forum: Civil Aviation
Topic: A380 - Two VERY Different Views of the Future
Replies: 107
Views: 14615

Re: A380 - Two VERY Different Views of the Future

Boeing should be more concerned with the Hunchback that had it last passenger unit delivered a year ago and has a backlog of 0 than the A380 with over 100 aircraft left to deliver. Maybe Boeing will keep re-announcing every LOI, MOU, commitment, firm with cargo customers two times like they did wit...

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by Revelation
Thu Jul 19, 2018 11:56 am
Forum: Non-Aviation
Topic: KGB Spy Butina arrest = NRA/GOP nightmare
Replies: 43
Views: 1602

Re: KGB Spy Butina arrest = NRA/GOP nightmare

How long before Drumph simply pardons Butina?

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by Revelation
Thu Jul 19, 2018 11:55 am
Forum: Non-Aviation
Topic: Stop being triggered all the time
Replies: 51
Views: 1441

Re: Stop being triggered all the time

Here's something interesting to consider, from Google's Wikipedia page: Early in 1999, Brin and Page decided they wanted to sell Google to Excite. They went to Excite CEO George Bell and offered to sell it to him for $1 million. He rejected the offer. Vinod Khosla, one of Excite's venture capitalis...

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by Revelation
Thu Jul 19, 2018 1:10 am
Forum: Non-Aviation
Topic: A pedantic thread
Replies: 74
Views: 1768

Re: A pedantic thread

Airstud wrote:
seb146 wrote:
In this case, referring to my sentence fragment.

That excuse for a sentence is missing a subject.

He should have diagrammed it first.

That would have been the pedantic thing to do.

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by Revelation
Thu Jul 19, 2018 1:06 am
Forum: Non-Aviation
Topic: Amateur Radio Operators
Replies: 13
Views: 525

Re: Amateur Radio Operators

Did a whole lot with it when I was in high school in the late 1970s. Did message passing in morse code for emergency preparedness. Seems so silly now with internet, texting, etc but you never know. I could do 35 words per minute, the main limit was I could write no faster and I could not type. Longe...

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by Revelation
Thu Jul 19, 2018 12:28 am
Forum: Civil Aviation
Topic: Reuters: Airbus is studying A321XLR with extended range over LR
Replies: 348
Views: 47752

Re: Reuters: Airbus is studying A321XLR with extended range over LR

In https://www.seattletimes.com/business/boeing-aerospace/boeing-may-build-its-797-with-a-metal-fuselage-to-keep-costs-down-and-that-could-favor-everett/ we read: Hazy said the A321XLR will dispense with the separate auxiliary fuel tanks and instead put the extra fuel into an expanded center wing ta...

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by Revelation
Thu Jul 19, 2018 12:28 am
Forum: Civil Aviation
Topic: Boeing 797 Discussion Thread - 2018
Replies: 2578
Views: 318604

Re: Boeing 797 Discussion Thread - 2018

https://www.seattletimes.com/business/boeing-aerospace/boeing-may-build-its-797-with-a-metal-fuselage-to-keep-costs-down-and-that-could-favor-everett/ has more speculation on how the 797 fuse may be metallic instead of CFRP. It also suggests the gossip at the show says the 797 business case seems to...

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by Revelation
Wed Jul 18, 2018 10:03 pm
Forum: Non-Aviation
Topic: Stop being triggered all the time
Replies: 51
Views: 1441

Re: Stop being triggered all the time

Early in the Internet era (early 1990. We also thought subscription based services would be more prevalent, but it took a long time for the payment infrastructure to evolve and by the time that happened advertising was king. We didn't see the way advertising would be the dominant funding mechanism ...

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by Revelation
Wed Jul 18, 2018 9:19 pm
Forum: Civil Aviation
Topic: Airbus and Rolls-Royce to stockpile parts ahead of Brexit
Replies: 57
Views: 5412

Re: Airbus and Rolls-Royce to stockpile parts ahead of Brexit

Even only the customs border instead of the common market, without any added tariffs is expected to add 4% cost. So a soft Brexit adds cost, a hard Brexit without a customs union adds lots of cost. Thanks, I hadn't heard that estimate before. Have you not been paying attention? Ryan air and Easyjet...

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by Revelation
Wed Jul 18, 2018 12:37 pm
Forum: Non-Aviation
Topic: Stop being triggered all the time
Replies: 51
Views: 1441

Re: Stop being triggered all the time

Early in the Internet era (early 1990s) we techies thought the internet would be monetized differently. We thought in terms of micro-payments where you could click on a box and send a few cents to the media provider to show you valued the work. However the financial institutions hated that approach....

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by Revelation
Wed Jul 18, 2018 12:18 pm
Forum: Non-Aviation
Topic: Stop being triggered all the time
Replies: 51
Views: 1441

Re: Stop being triggered all the time

Television is the worst place to get your information. It’s six minute segments with multiple people trying to get the best sound bite. If you really want to be informed, seek out long form conversations. The internet has given us greater access to this format than ever. Yes, it's possible to dive ...

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by Revelation
Wed Jul 18, 2018 12:03 pm
Forum: Technical/Operations
Topic: Airbus A340 Laminar Flow Demonstrator To Fly In 2017
Replies: 160
Views: 21700

Re: Airbus A340 Laminar Flow Demonstrator To Fly In 2017

It has kick the ass of any Airbus wing, old or new. You can't hope to kick the ass of products newer than you for very long if at all. Also, as you know, there is this thing called risk vs reward. At some point you have to decide the cost of including interesting new tech just includes too much ris...

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by Revelation
Wed Jul 18, 2018 11:53 am
Forum: Non-Aviation
Topic: A pedantic thread
Replies: 74
Views: 1768

Re: A pedantic thread

seb146 wrote:
I prefer a good pedamorphic infective myself.

Long live the Oxford comma and two spaces after a period!!

Long live the Oxford comma, and two spaces after a period!

Pedantically yours,
Revelation

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by Revelation
Wed Jul 18, 2018 11:45 am
Forum: Civil Aviation
Topic: Airbus and Rolls-Royce to stockpile parts ahead of Brexit
Replies: 57
Views: 5412

Airbus and Rolls-Royce to stockpile parts ahead of Brexit

https://www.telegraph.co.uk/business/2018/07/17/airbus-rolls-royce-stockpile-parts-amid-claims-criminal-brexit/ says Airbus has already begun hoarding parts and examining its supply chain in a bid to soften the blow of no deal or a hard Brexit, chief operating officer Tom Williams said at the Farnbo...

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by Revelation
Wed Jul 18, 2018 10:44 am
Forum: Civil Aviation
Topic: Boeing 797 Discussion Thread - 2018
Replies: 2578
Views: 318604

Re: Boeing 797 Discussion Thread - 2018

Another NMA piece at https://www.seattletimes.com/business/boeing-aerospace/boeing-working-intensely-to-firm-up-plans-for-proposed-797/ tells us more about the program: Behind the scenes an intense planning phase is underway to ensure Boeing can develop the jet, build it and sell it and get a return...

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by Revelation
Wed Jul 18, 2018 10:31 am
Forum: Technical/Operations
Topic: Airbus A340 Laminar Flow Demonstrator To Fly In 2017
Replies: 160
Views: 21700

Re: Airbus A340 Laminar Flow Demonstrator To Fly In 2017

The article I referred to in the original post, which quotes said CEO, says that the decision is 6 to 18 months away, which I translated to anywhere between early 2019 and early 2020. And 2019 + 6 years development is approximately 2025. So far we all agree, Mr. Muilenberg included. Yes, I see how ...

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by Revelation
Tue Jul 17, 2018 5:04 pm
Forum: Civil Aviation
Topic: Boeing Global Services ponders 777-300ER P2F program
Replies: 15
Views: 2135

Re: Boeing Global Services ponders 777-300ER P2F program

Could some structural people explain the 777 floor problem with moderate technical detail? Why can't the floor as existing be beefed up (which it can't as I read)? In short the 777 pax models used cfrp beams to save weight and they aren't as strong as the metallic ones found on 77F. Not sure why en...

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by Revelation
Tue Jul 17, 2018 1:22 pm
Forum: Technical/Operations
Topic: Airbus A340 Laminar Flow Demonstrator To Fly In 2017
Replies: 160
Views: 21700

Re: Airbus A340 Laminar Flow Demonstrator To Fly In 2017

Boeing has just pushed back a firm decision on the 797 until 2019 - 2020, EIS no earlier than 2025 - 2026. BCA CEO just said launch decision no later than end 2019 and EIS still by end 2015. You're free to put your own spin on that, but it'd be nice if you didn't say Boeing has made such a statemen...

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by Revelation
Tue Jul 17, 2018 1:19 pm
Forum: Civil Aviation
Topic: Reuters: Airbus is studying A321XLR with extended range over LR
Replies: 348
Views: 47752

Re: Reuters: Airbus is studying A321XLR with extended range over LR

More detail on the XLR here. Looking for 4500 NM + range: http://atwonline.com/farnborough-airshow-2018/airbus-pushes-a321lr-upgrade-middle-market I don't see how any A321 with "incremental improvements" can be a true NMA competitor. It will need a stretch and a new wing with updated aero...

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by Revelation
Tue Jul 17, 2018 1:14 pm
Forum: Civil Aviation
Topic: Boeing Global Services ponders 777-300ER P2F program
Replies: 15
Views: 2135

Re: Boeing Global Services ponders 777-300ER P2F program

I think Boeing could solve the floor beam problem with an expensive retrofit. I'm sure this is part of the "pondering" mentioned in the title of the article. Where there's a will there's a way. We saw the first A33x P2F had a lot of exterior lower lobe reinforcement. Not optimal but it wo...

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by Revelation
Tue Jul 17, 2018 12:20 pm
Forum: Civil Aviation
Topic: Boeing Global Services ponders 777-300ER P2F program
Replies: 15
Views: 2135

Re: Boeing Global Services ponders 777-300ER P2F program

I think it suggests that many -200ERs are being run out to the point a P2F doesn't make sense for them. Do we have any data to support that? On the other hand, it seems lots of -300ERs were leased and may not find future homes due to A350/77X coming along during their lifecycles. So it may be that -...

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by Revelation
Tue Jul 17, 2018 12:15 pm
Forum: Civil Aviation
Topic: Boeing 797 Discussion Thread - 2018
Replies: 2578
Views: 318604

Re: Boeing 797 Discussion Thread - 2018

It is not as if RR is desperately searching a plane to hang their Ultrafan on. I agree. Architectural changes have a "gestation period", no doubt. On the other hand, the commercial side has its influences on R&D. If an eager customer with a good application shows up, you accelerate th...

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by Revelation
Tue Jul 17, 2018 11:49 am
Forum: Civil Aviation
Topic: Boeing Global Services ponders 777-300ER P2F program
Replies: 15
Views: 2135

Boeing Global Services ponders 777-300ER P2F program

https://leehamnews.com/2018/07/17/farnborough-boeing-global-services-ponders-777-300er-p2f-program says: (BGS president Stan) Deal said the studies “just make sense. If you think about the life cycles of the 777, the -300 is starting to come out [of passenger service].” With the 777X due to enter se...

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by Revelation
Tue Jul 17, 2018 11:36 am
Forum: Civil Aviation
Topic: Boeing 797 Discussion Thread - 2018
Replies: 2578
Views: 318604

Re: Boeing 797 Discussion Thread - 2018

RR can be quite relaxed with the Ultrafan, If things work perfectly they can hang it on the 797, if not maybe on the Airbus response and if not that then maybe on an A380NEO and if not that surely on the A350/787 by 2030-35. It's far from optimal to be doing demonstrators 2015-20, engine in ground ...

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by Revelation
Mon Jul 16, 2018 4:52 pm
Forum: Civil Aviation
Topic: Airbus nma?
Replies: 22
Views: 4249

Re: Airbus nma?

Maybe we'll get a more direct assault in the 2025+ time frame. AvWeek's article on developments at Rolls Royce suggests the UltraFan engine could find an application on an unnamed future Airbus twin aisle design. Seeing that Airbus is doing pylon, nacelle and inlet work to hang it on the RR 747 test...

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by Revelation
Mon Jul 16, 2018 4:44 pm
Forum: Civil Aviation
Topic: Boeing 797 Discussion Thread - 2018
Replies: 2578
Views: 318604

Re: Boeing 797 Discussion Thread - 2018

What on earth are you talking about? Only in the fever swamp of A.net could a program that will probably finish 2018 with 5,000 firm orders and a backlog of six or so years be described as "things getting pretty ugly." :boggled: Please don't feed the troll. As Matt said earlier and I whol...

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by Revelation
Mon Jul 16, 2018 4:37 pm
Forum: Non-Aviation
Topic: Does "Papa John" Schnatter really deserve this fallout?
Replies: 80
Views: 2205

Re: Does "Papa John" Schnatter really deserve this fallout?

Super80Fan wrote:
Revelation wrote:

Chic-Fil-A goes down next.


Keep dreaming. Not going to happen.

Enjoy eating KFC where the founder is still in the name/logo yet casually threw around the "N" word.

I don't eat at either place, that shit is bad for you.

Super80Fan wrote:
Hypocrite.

Name caller.

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by Revelation
Mon Jul 16, 2018 12:41 pm
Forum: Civil Aviation
Topic: Boeing 797 Discussion Thread - 2018
Replies: 2578
Views: 318604

Re: Boeing 797 Discussion Thread - 2018

Looks like Boeing still faces some interesting challenges... https://leehamnews.com/2018/07/16/farnborough-boeing-reconsiders-metal-fuselage-for-nma-as-cost-remains-major-challenge/ We just had a discussion of composites vs metallics here, so we scooped the scoop! The skepticism around the EIS date...

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by Revelation
Mon Jul 16, 2018 12:21 pm
Forum: Civil Aviation
Topic: Boeing 797 Discussion Thread - 2018
Replies: 2578
Views: 318604

Re: Boeing 797 Discussion Thread - 2018

I think the text is not clear enough. Advance runs at Trent XWB thrust levels and the current test engine Ultrafan will do so too. (initial Ultrafan demonstrators are designed to run at 80.000 lbs) And they achieved to finish the stage 1 design for that demonstrator engine. Sure the idea (or to be ...

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by Revelation
Mon Jul 16, 2018 12:14 pm
Forum: Civil Aviation
Topic: United Airlines announces order for 25 E-175 and 4 787-9's
Replies: 54
Views: 11010

Re: United Airlines announces order for 25 E-175 and 4 787-9's

Only 4 x B787-9's? Is this indicative that this completes their current needs for this type,and that a different type will also be ordered? UA has been willing to be an opportunistic buyer, grabbing a few frames from various sources as needs evolve. For instance, they grabbed end-of-line 77Ws when ...

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by Revelation
Mon Jul 16, 2018 11:53 am
Forum: Civil Aviation
Topic: Boeing 797 Discussion Thread - 2018
Replies: 2578
Views: 318604

Re: Boeing 797 Discussion Thread - 2018

Too add to my point earlier, the reason the decision is “pushed back” until next year is, in my opinion based on the way things tend to work with launches, is that now that Boeing have final engine specs they will be presenting the two engines and two sizes to airlines during the airshow and afterw...

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by Revelation
Mon Jul 16, 2018 11:38 am
Forum: Technical/Operations
Topic: RR Builds Next-Gen "Advance 3" Demo Engine
Replies: 44
Views: 18613

Re: RR Builds Next-Gen "Advance 3" Demo Engine

http://aviationweek.com/propulsion/ultrafan-concept-frozen-rolls-throttles-new-core says: “The Advance3 is doing really well . The technology is performing as we thought it would, and it has now run at full take-off power,” says Andy Geer, project director for the UltraFan demonstrator program. Alth...

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by Revelation
Sun Jul 15, 2018 6:25 pm
Forum: Civil Aviation
Topic: JetBlue Orders 60 Airbus A220-300
Replies: 354
Views: 46853

Re: JetBlue Orders 60 Airbus A220-300

lightsaber wrote:
Thank you for pointing out an item you knew I would be interested in. :praise:

No problem. I always enjoy your posts here so I'm glad to return the favor.

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by Revelation
Sun Jul 15, 2018 3:51 pm
Forum: Civil Aviation
Topic: Boeing 797 Discussion Thread - 2018
Replies: 2578
Views: 318604

Re: Boeing 797 Discussion Thread - 2018

A single aisle over 200 passengers begins to be the definition of torture. Give me a wide A321 seat / armrest / aisle with enough knee room over the cramped 10 abreast 777 economy seat / aisle / armrest I had yesterday.. High profile aviation guy like you can't swing business or first class? :scrat...

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by Revelation
Sun Jul 15, 2018 2:58 pm
Forum: Civil Aviation
Topic: Boeing 797 Discussion Thread - 2018
Replies: 2578
Views: 318604

Re: Boeing 797 Discussion Thread - 2018

I think a combined message on how strong the NMA segment is and delaying the decision, is keeping Boeing marketing department up at night. People will ask why tomorrow & the "deliberate decision" and "talking to 60 airline" "fully understanding airline needs" state...

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