Search found 6133 matches

by WIederling
Sun Jun 17, 2018 5:25 pm
Forum: Civil Aviation
Topic: Airbus does not believe in continuing deliveries to Iran
Replies: 66
Views: 11816

Re: Airbus does not believe in continuing deliveries to Iran

The US Banking System is not that necessary. The Swiss banking system can easily step in for international commerce - and is accepted worldwide without any political issues. Currently there is an expansive move by the US to claim any transaction in US-dollars to be bound to US legal constraints.

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by WIederling
Sun Jun 17, 2018 3:35 pm
Forum: Civil Aviation
Topic: Airbus shelves A320neo-plus study
Replies: 296
Views: 37302

Re: Airbus shelves A320neo-plus study

Laser welding seems to be passé. There are still concepts using friction-stir welding to create very large, very thin metal sheets to increase panel size. A318 laser welding was mostly used for attaching stringers to skin, wasn't it? ( not making seamless larger panels ) I expected that if successf...

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by WIederling
Sun Jun 17, 2018 2:33 pm
Forum: Civil Aviation
Topic: Airbus shelves A320neo-plus study
Replies: 296
Views: 37302

Re: Airbus shelves A320neo-plus study

SomebodyInTLS wrote:
Laser welding seems to be passé. There are still concepts using friction-stir welding to create very large, very thin metal sheets to increase panel size.


A318 laser welding was mostly used for attaching stringers to skin, wasn't it?
( not making seamless larger panels )

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by WIederling
Sun Jun 17, 2018 2:27 pm
Forum: Civil Aviation
Topic: Next A330 Neo orders....
Replies: 92
Views: 15206

Re: Next A330 Neo orders....

787 sales were sluggish until Boeing unleashed their offensive. Would Airbus bite the bullet and do the same? When were 787 sales sluggish? from 2008 to 2017 ? https://upload.wikimedia.org/wikipedia/en/timeline/11f3509379c84d12c5a5fa55a7f8f38c.png ref: https://en.wikipedia.org/wiki/List_of_Boeing_7...

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by WIederling
Sun Jun 17, 2018 2:02 pm
Forum: Technical/Operations
Topic: Is fewer fan blades better?
Replies: 16
Views: 1539

Re: Is fewer fan blades better?

Florianopolis wrote:
Balerit wrote:
Just look at how the aspect ratio has changed.


Isn't a high-aspect airfoil better, though?


open ended yes ( wing or propeller blade.)
different for an arrangement that sports some kind of endplate ( here the fan shroud.)

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by WIederling
Sun Jun 17, 2018 9:03 am
Forum: Non-Aviation
Topic: Anyone ever hear of Leonid & Friends from Russia?
Replies: 2
Views: 158

Re: Anyone ever hear of Leonid & Friends from Russia?

https://www.youtube.com/watch?v=XKhbI2XUob4

Local Instruments well known tunes.
-->

Hit the Road Jack" cover:
https://www.youtube.com/watch?v=XKhbI2XUob4

Local Instruments well known tunes.

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by WIederling
Sun Jun 17, 2018 8:44 am
Forum: Civil Aviation
Topic: Airbus does not believe in continuing deliveries to Iran
Replies: 66
Views: 11816

Re: Airbus does not believe in continuing deliveries to Iran

This is exactly why they should do it. Creating the appropriate supply chain would take a while anyways, and would give them independence from US whims. They could use their already established suppliers for what gets built in mobile, and create euro-fied aircraft back in Toulouse. Well, somehow th...

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by WIederling
Thu Jun 14, 2018 7:41 am
Forum: Civil Aviation
Topic: First Airbus A380 parked amid search for new operator
Replies: 266
Views: 95902

Re: First Airbus A380 parked amid search for new operator

...but look at the early 787´s, the first two are already retired if I´m not mistaken! No customer-delivered frame has been retired. There are a few VIP models either undergoing interior fitting or for sale and the Trent 1000-powered fleet is being rotated in and out of service due to engine replac...

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by WIederling
Thu Jun 14, 2018 7:35 am
Forum: Military Aviation & Space Flight
Topic: New Chinese Medium Transport Aircraft
Replies: 8
Views: 246

Re: A400M Update

https://en.wikipedia.org/wiki/Xi%27an_Y ... timated%29

66t max payload ( 220t MTOW )
-->

jupiter2 wrote:
To me it looks a little smaller than an A400, but looks as though the cabin height should be fairly high.


if that really is the fuselage of the y-20 looks appear to be deceptive:
https://en.wikipedia.org/wiki/Xi%27an_Y ... timated%29

66t max payload ( 220t MTOW )

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by WIederling
Wed Jun 13, 2018 7:07 am
Forum: Military Aviation & Space Flight
Topic: A400M Update
Replies: 798
Views: 103839

Re: A400M Update

I guess just in civilian aviation it is up to MoI, LoI and Firm order ;-) How would that pan out? LoI 73 Units, MoI 60 Units, Firm 53? big difference is that with airlines buying less really has a chance to save money. ( you lose a minor bit of rebates from "not buying more". Mengenstaffe...

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by WIederling
Tue Jun 12, 2018 8:06 pm
Forum: Civil Aviation
Topic: How far could an A350-900ULR go with a standard config?
Replies: 95
Views: 17889

Re: How far could an A350-900ULR go with a standard config?

jagraham wrote:
OEW rule of thumb is 1/2% fuel consumption improvement for every 1% weight reduction. 3% fuel consumption reduction is a big hurdle to achieve with weight reduction - especially for a new plane being modified for the longest flights.


The cabin layout choosen should reduce OEW significantly.

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by WIederling
Tue Jun 12, 2018 4:35 pm
Forum: Non-Aviation
Topic: Iran seeks to sue Boeing.
Replies: 109
Views: 6499

Re: Iran seeks to sue Boeing.

Bigstud69 wrote:
The only solution with Iran is regime change. Anything else is unacceptable.


In the US ? most certainly yes!

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by WIederling
Tue Jun 12, 2018 4:28 pm
Forum: Civil Aviation
Topic: How far could an A350-900ULR go with a standard config?
Replies: 95
Views: 17889

Re: How far could an A350-900ULR go with a standard config?

kurtverbose wrote:
5% on a still quite new design seems like fantasy to me.


IMU Zeke attributed this "5%" to the A350-900ULR.
this could come about as:
1+% aero, 1+% engine sfc, couple percent via OEW reductions?

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by WIederling
Tue Jun 12, 2018 7:26 am
Forum: Civil Aviation
Topic: LH A340 damaged by pushback tug fire at FRA
Replies: 168
Views: 29925

Re: LH A340 damaged by pushback tug fire at FRA

Not sure this video has been posted earlier in the thread: https://www.youtube.com/watch?v=cvjHCrop6G0 Obviously judging by the hole and the way framework is hanging down there is no way this aircraft will fly again. doesn't the Airbus way of assembling aircraft provide for fully plugged interconne...

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by WIederling
Tue Jun 12, 2018 7:19 am
Forum: Technical/Operations
Topic: The simplicity of aircraft tires
Replies: 14
Views: 2278

Re: The simplicity of aircraft tires

I meant to say NOT needed as a source of friction for movement. aircraft don't have brakes? ( SCNR ) I was referring to the tires as a source of friction for forward acceleration. In other words the tires do not produce the force to move the aircraft forward. There is no physical difference to rear...

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by WIederling
Mon Jun 11, 2018 12:08 pm
Forum: Civil Aviation
Topic: Could the A350 do the 789's ULH?
Replies: 56
Views: 10713

Re: Could the A350 do the 789's ULH?

zeke wrote:
It is an all premium cabin, their premium economy seat is of the same style that is marketed in North America as first class, and elsewhere as regional business.

They have no 7 kg EY seats installed.


Any idea about their dead weight ( per monument.)?

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by WIederling
Mon Jun 11, 2018 9:03 am
Forum: Military Aviation & Space Flight
Topic: A400M Update
Replies: 798
Views: 103839

Re: A400M Update

Hate? A plane that a huge maintenance problems and an abysmal readiness rate. Luftwaffe has zero bespoke mil stuff that works. ( only aircraft that flies with some reliability is the civil derived Helo they have.) Which is unsurprising. If you are not allowed to order spares with a bit of head way ...

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by WIederling
Sun Jun 10, 2018 5:19 pm
Forum: Military Aviation & Space Flight
Topic: A400M Update
Replies: 798
Views: 103839

Re: A400M Update

https://m.youtube.com/watch?v=PKs3jbLdZ0o Nice french lady manager talking about how long it took to put all the extra protections on the aircraft just to land on an unpaved but otherwise totally prepared runway doesn't build a lot of confidence, does it? Ever seen one of those longwinded commercia...

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by WIederling
Sun Jun 10, 2018 3:46 pm
Forum: Non-Aviation
Topic: US suicide rate up 28% in 20 years
Replies: 51
Views: 1745

Re: US suicide rate up 28% in 20 years

Jouhou wrote:
We don't take care of mental health in the US. It's as simple as that.


Isn't the US the country where everybody and his(her?) pet has a shrink?

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by WIederling
Sun Jun 10, 2018 2:35 pm
Forum: Non-Aviation
Topic: G7 summit ends in disarray as Trump abandons joint statement
Replies: 193
Views: 4318

Re: G7 summit ends in disarray as Trump abandons joint statement

einsteinboricua wrote:
That's why it's called FREE.


And by intention that "FREE" never went beyond unhindered US access to foreign markets.
The reverse was never expected to work out.

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by WIederling
Sun Jun 10, 2018 12:15 pm
Forum: Technical/Operations
Topic: The simplicity of aircraft tires
Replies: 14
Views: 2278

Re: The simplicity of aircraft tires

amishfarmer wrote:
I meant to say NOT needed as a source of friction for movement.


aircraft don't have brakes?
( SCNR )

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by WIederling
Sun Jun 10, 2018 12:11 pm
Forum: Non-Aviation
Topic: G7 summit ends in disarray as Trump abandons joint statement
Replies: 193
Views: 4318

Re: G7 summit ends in disarray as Trump abandons joint statement

MaverickM11 wrote:
If you want to look pretty, stand next to Sarah Huckabee.


"Look pretty" :: So that is how Ms. Merkel does it. ( sit next to Peter Altmaier. :-)

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by WIederling
Sun Jun 10, 2018 9:17 am
Forum: Non-Aviation
Topic: US suicide rate up 28% in 20 years
Replies: 51
Views: 1745

Re: US suicide rate up 28% in 20 years

And I just made an effort to verify the numbers and find myself proven wrong. Hello mouth, insert foot. There is a caveat in that you have to overlay the regional rates with the rise. http://www.worldlifeexpectancy.com/usa/cause-of-death/suicide/by-state/ Looks like the high increase states are als...

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by WIederling
Sun Jun 10, 2018 7:06 am
Forum: Civil Aviation
Topic: Could the A350 do the 789's ULH?
Replies: 56
Views: 10713

Re: Could the A350 do the 789's ULH?

LAX772LR wrote:
Which is rather academic here, considering that this aircraft is already "blocking" by being equipped with 100+ fewer seats than is typical of its capacity.


You are comparing capacity for different seating. 168 business ( lie flat too? ) seats take more room than 300+ economy seats.

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by WIederling
Sat Jun 09, 2018 1:23 pm
Forum: Civil Aviation
Topic: RR 787 Engine retrofit
Replies: 6
Views: 1938

Re: RR 787 Engine retrofit

Tedd wrote:
T-1000-TEN is being supplied as quickly
as possible, ....


Will be interesting to watch if RR ratcheting up T-1000 TEN production doesn't create new issues.
( Look at P&W rather carefully botching up the industrialization process for the GTF.)

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by WIederling
Sat Jun 09, 2018 1:02 pm
Forum: Non-Aviation
Topic: Is "god" a myth?
Replies: 239
Views: 7910

Re: Is "god" a myth?

You do realise that there were religious nut bags running around murdering "non believers of their god" (unfortunately they still do) long before America existed ? continuing to do so doesn't make it any better or elevates its moral quality in any way. Or are you implying that "god&q...

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by WIederling
Sat Jun 09, 2018 9:56 am
Forum: Civil Aviation
Topic: Airbus, Bombardier C-Series Partnership Effective July 1
Replies: 64
Views: 10217

Re: Airbus, Bombardier C-Series Partnership Effective July 1

Kiwirob wrote:
I doubt they will be able to call them the A200 family, Mercedes already own this.


cars ~= airplanes ? i.e. different namespace?

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by WIederling
Fri Jun 08, 2018 7:33 am
Forum: Civil Aviation
Topic: Boeing 777X Production Thread 2018
Replies: 157
Views: 35327

Re: Boeing 777X Production Thread 2018

kanban wrote:
Never seen Boeing join a section missing the crown skin. it's just too wobbly..
any comments?


new idea on how to install the big cabin monuments?
( Junkers F13 and onwards configured as freighters had a big hatch ( full width, near full length )
in the cabin top to load large freight pieces :-)

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by WIederling
Fri Jun 08, 2018 7:15 am
Forum: Civil Aviation
Topic: How far could an A350-900ULR go with a standard config?
Replies: 95
Views: 17889

Re: How far could an A350-900ULR go with a standard config?

LAX772LR wrote:
ap305 wrote:
137t oew (probably even lighter)

Where's that figure from? I thought the OEW for the current A359 was 145T?


Look at the bottom does it say (C) Boeing or (C) Airbus :-)

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by WIederling
Wed Jun 06, 2018 7:05 am
Forum: Technical/Operations
Topic: A350 short runway issue
Replies: 89
Views: 13368

Re: A350 short runway issue

The data has already been published, this is just validation of the certified performance data. ... in which case the mystery around the Astra analysis deepens :shock: see post #73 :-) only in those "icky" cases have I experienced such answers. In all other cases my requests got a reasona...

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by WIederling
Wed Jun 06, 2018 7:03 am
Forum: Non-Aviation
Topic: MH17: The missile belonged to a Russian brigade
Replies: 327
Views: 18268

Re: MH17: The missile belonged to a Russian brigade

I suppose they didn't expect exposure that fast. I expect them that they were going to be fully exposed when they decided to go on live TV to tell all. But that is just a guess. ;) All this "story" is - just imbeciles staging a comedy show. It's just something they do, one of their traits...

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by WIederling
Tue Jun 05, 2018 4:02 pm
Forum: Technical/Operations
Topic: A350 short runway issue
Replies: 89
Views: 13368

Re: A350 short runway issue

tealnz wrote:
Yet the Astra report said the 359 couldn't operate into Wellington at all on a wet runway. Seems strange.


Because Boeing paid for it? I asked the author at the time about the how and why and got
a pretty impolite and forceful brush off.

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by WIederling
Tue Jun 05, 2018 11:37 am
Forum: Non-Aviation
Topic: Trump to ban BMW/Mercedes from US Markets
Replies: 224
Views: 7072

Re: Trump to ban BMW/Mercedes from US Markets

seb146 wrote:
Isn't that what you righties were screaming about under Obama? I notice none of you are screaming about "real unemployment numbers" now.....


The Righties see that the right people are unemployed. ( i.e. not them. SOL )

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by WIederling
Tue Jun 05, 2018 11:34 am
Forum: Non-Aviation
Topic: Trump to ban BMW/Mercedes from US Markets
Replies: 224
Views: 7072

Re: Trump to ban BMW/Mercedes from US Markets

TTIP was not free trade, it was stupid trade. TTIP was designed and negotiated as a contract of EU subjugation. Limiting political decision leeway via investment protection and non public arbitration courts. The product of a corporatist system. Similar stuff goes for the other "cooperation and...

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by WIederling
Tue Jun 05, 2018 7:30 am
Forum: Civil Aviation
Topic: Airbus faces “unprecedented challenge” to hit delivery target
Replies: 104
Views: 13385

Re: Airbus faces “unprecedented challenge” to hit delivery target

Why the comparatively slow final assembly learning curve for the A350? Is it something inherent in the production process? Is Airbus considering a review of their A350 production process along with the A320 review? You talk about production but you enumerate deliveries. Boeing accumulated near fini...

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by WIederling
Mon Jun 04, 2018 5:23 pm
Forum: Civil Aviation
Topic: Airbus is considering A350-1000ULR
Replies: 73
Views: 17264

Re: Airbus is considering A350-1000ULR

MaxiAir wrote:
+125 tons of fuel (max capacity 156.000 liters) (equals about 18+ flying hours, maybe 19)


The 165kl tankage delimit on the A359ULR is available for the full line :: 132t fuel

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by WIederling
Mon Jun 04, 2018 4:40 pm
Forum: Non-Aviation
Topic: MH17: The missile belonged to a Russian brigade
Replies: 327
Views: 18268

Re: MH17: The missile belonged to a Russian brigade

JIT made a press announcement that it was a Russian missile for sure. How hard is that to understand? see: https://www.om.nl/onderwerpen/mh17-crash/@103196/update-criminal-0/ JIT language does not go beyond "convinced". They do not have proof. faint circumstantial evidence perhaps. JIT th...

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by WIederling
Mon Jun 04, 2018 6:49 am
Forum: Civil Aviation
Topic: HAM power outage & all flights cancelled as of now
Replies: 42
Views: 6214

Re: HAM power outage & all flights cancelled as of now

Kilopond wrote:
Glass fibre lines of Vodafone have been targets of anarchist destruction as well.


Got a link to that "anarchist attack" ?

usually the terrorists are hamfisted ( or just insufficiently informed ) excavator operators.

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by WIederling
Mon Jun 04, 2018 6:41 am
Forum: Civil Aviation
Topic: Airbus faces “unprecedented challenge” to hit delivery target
Replies: 104
Views: 13385

Re: Airbus faces “unprecedented challenge” to hit delivery target

As to my other comment, if engines were all on time, are the production lines flowly smoothly or are engine delays covering up traveled work and other supply chain issues? I dont know the answer but these articles imply there are issues supporting current production rates I see your distress. AFAIC...

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by WIederling
Sat Jun 02, 2018 7:41 pm
Forum: Civil Aviation
Topic: Unbearable stench from passenger causes emergency landing
Replies: 56
Views: 11840

Re: Unbearable stench from passenger causes emergency landing

Monty1988 wrote:
Once experienced something like that from an Egyptian passenger he was absolutely rotten!


Let me guess: He also trailed bandages?

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by WIederling
Fri Jun 01, 2018 12:28 pm
Forum: Civil Aviation
Topic: Rolls-Royce: More 787 groundings imminent.
Replies: 66
Views: 17081

Re: Rolls-Royce: More 787 groundings imminent.

Hi WIederling. If you were to replace your sentence "You generate issues all the time." with "Issues are generated all the time", then I would be obliged. The rest of your stuff is a matter of opinion, on which I hold a slightly different view. See my second paragraph. It might ...

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by WIederling
Fri Jun 01, 2018 7:46 am
Forum: Non-Aviation
Topic: MH17: The missile belonged to a Russian brigade
Replies: 327
Views: 18268

Re: MH17: The missile belonged to a Russian brigade

... hehe. Seen the last installment of Russian harassment of poor Ukraine yet? "BAD BAD Russians killed our poor RU critical journalist" all exposed as jsut another fake. I suppose they didn't expect exposure that fast. They should have done a real false flag not just pretend the journo w...

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by WIederling
Fri Jun 01, 2018 7:36 am
Forum: Civil Aviation
Topic: Rolls-Royce: More 787 groundings imminent.
Replies: 66
Views: 17081

Re: Rolls-Royce: More 787 groundings imminent.

As the problems were caused prior to the EIS, that puts these results being caused by the engineers prior to about 7 years ago. It was only in July 2015 that the current CEO got started in the job. About first thing he worked out was that RR had an insane number of folk having the authority to comm...

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by WIederling
Thu May 31, 2018 10:16 am
Forum: Technical/Operations
Topic: (Theoretical) re-engine of An-225
Replies: 29
Views: 3432

Re: (Theoretical) re-engine of An-225

Matt6461 wrote:
So I don't exactly trust your conclusion that the Swet contribution of an engine pylon is minor relative to airflow disruption over the wing.


The lawyer pushing through?
Scientific observation is not dependent on trust but on reason. ( That was the big intellectual step taken at the time. )

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by WIederling
Wed May 30, 2018 6:56 pm
Forum: Technical/Operations
Topic: (Theoretical) re-engine of An-225
Replies: 29
Views: 3432

Re: (Theoretical) re-engine of An-225

why would you do "short pylons" on a high wing aircraft!? Because objects moving through a fluid create drag in rough proportion to their size. https://en.wikipedia.org/wiki/Parasitic_drag probably a minor issue vs. the perfect position relative the wing. you want to optimize on ‰ effects...

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by WIederling
Wed May 30, 2018 5:51 pm
Forum: Technical/Operations
Topic: (Theoretical) re-engine of An-225
Replies: 29
Views: 3432

Re: (Theoretical) re-engine of An-225

I meant that the blast created by in-flight reversal with the An-225's current pylon design goes mostly under the wing. But today's pylons are so much shorter and the engines are up higher which means that now a lot of the blast now goes over the wing. Therefore you will enter an uncontrolled dive ...

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by WIederling
Wed May 30, 2018 12:45 pm
Forum: Civil Aviation
Topic: Rolls-Royce: More 787 groundings imminent.
Replies: 66
Views: 17081

Re: Rolls-Royce: More 787 groundings imminent.

Fact is there hasn't been an icing incident with the GENx for a few years now. Fact is also that the GENx is not subjected to the same restrictions that the RRs are. No icing incidents due to FAA use limitations that avoid such icing. i.e a nonFact ( no bovines no mouth and hoof disease :-) The RR ...

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by WIederling
Wed May 30, 2018 12:40 pm
Forum: Technical/Operations
Topic: (Theoretical) re-engine of An-225
Replies: 29
Views: 3432

Re: (Theoretical) re-engine of An-225

What's your source for D18 SFC? That's a surprisingly good figure for an older Russian engine. caveat: Afair: and unsorted: https://books.google.de/books?id=_5vA_5XK33sC&pg=PA151&lpg=PA151&dq=D-18T+sfc&source=bl&ots=oQTsQaxYr3&sig=MTZixxHdYk6PdAi3ZovIfAP6ZSE&hl=en&sa...

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by WIederling
Wed May 30, 2018 11:26 am
Forum: Civil Aviation
Topic: Rolls-Royce: More 787 groundings imminent.
Replies: 66
Views: 17081

Re: Rolls-Royce: More 787 groundings imminent.

It seems like these issues are a result of pushing the limits of current materials and technology to achieve the efficiency gains being sought. I expect its more a loss of knowledge within the various companies than anything else. I see this occurring ever more frequently. People stop doing somethi...

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by WIederling
Tue May 29, 2018 5:17 pm
Forum: Non-Aviation
Topic: Solo - spoilers!
Replies: 16
Views: 651

Re: Solo - spoilers!

Darth Maul made no sense unless it wasn’t Darth Maul..... You are right, that wasn't Darth Maul you saw. It's Maul without the Darth. The Solo timeline should be somewhere between the animated The Clone Wars and Rebels. After surviving being bisected by Obiwan in TPM, he became a cyborg in the abov...

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