Search found 17178 matches

by zeke
Sun Mar 06, 2022 4:10 pm
Forum: Civil Aviation
Topic: Ethiopian Signing MoU for 777-8 Freighter
Replies: 53
Views: 12000

Re: Ethiopian Signing MoU for 777-8 Freighter

MrHMSH wrote:
Would anyone be able to estimate how close to MTOW an A35K could get out of ADD, if the QF Project Sunrise variant is selected?


Easiest thing to do would be to go into the ACAPS at 80 deg C at sea level.

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by zeke
Sun Mar 06, 2022 4:00 pm
Forum: Civil Aviation
Topic: Ethiopian Signing MoU for 777-8 Freighter
Replies: 53
Views: 12000

Re: Ethiopian Signing MoU for 777-8 Freighter

Ok Zeke, whatever, have your own opinion but is the 77X not tailored, specifically to EK’s requirements (meaning capable of MTOW operation at max temps in Dubai in the summer?) I Max temp out of DXB is like a density altitude half of that of ADD. It’s a totally unsupported comment to state that the...

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by zeke
Sun Mar 06, 2022 3:44 pm
Forum: Civil Aviation
Topic: Ethiopian Signing MoU for 777-8 Freighter
Replies: 53
Views: 12000

Re: Ethiopian Signing MoU for 777-8 Freighter

There were only two freighters in this competition: The A350F and 778F. Both have two engines. Talk about what is better optimized is clearly relative to competition, not some mythical new 4 engined freighter that does not exist for ET to buy. The comment I replied to stated the 77X is optimised to...

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by zeke
Sun Mar 06, 2022 3:41 pm
Forum: Technical/Operations
Topic: Installing/ Uninstalling ETOPS On An Aircraft
Replies: 48
Views: 6505

Re: Installing/ Uninstalling ETOPS On An Aircraft

hongkongflyer wrote:
One of the most common equipments for ETOPS is those related to over water safety equipments.


EDTO has nothing to do with flying over water. You can be required to carry rafts etc when flying non EDTO. Likewise you can be in an EDTO segment over land (common over Africa).

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by zeke
Sun Mar 06, 2022 12:42 pm
Forum: Civil Aviation
Topic: Ethiopian Signing MoU for 777-8 Freighter
Replies: 53
Views: 12000

Re: Ethiopian Signing MoU for 777-8 Freighter

I think it was clear from my post that the 77X was more or less over-engineered/given more thrust at hot/high for the ME3 appeal (basically more MTOW takeoff margin) not that the altitude/temperature at DXB is identical with ADD. I think some of that capability is a net minus for some operators wit...

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by zeke
Sun Mar 06, 2022 12:19 pm
Forum: Technical/Operations
Topic: Installing/ Uninstalling ETOPS On An Aircraft
Replies: 48
Views: 6505

Re: Installing/ Uninstalling ETOPS On An Aircraft

There is no such thing as an EDTO installation for an aircraft, EDTO requirements depend on the regulator overseeing the operator. Please stop posting misinformation. ETDO is an operational approval that is granted to an operator. What the operator needs to have in place to exercise that approval is...

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by zeke
Sun Mar 06, 2022 12:58 am
Forum: Civil Aviation
Topic: Updated: Aeroflot resumes International services with SSJ fleet
Replies: 133
Views: 39038

Re: Aeroflot cancels all international flights except to Belarus

Is there any chance they're having Jet A supply issues? I read something the other day that hinted at that. I realize they have plenty of oil, but that doesn't necessarily translate to refinery capacity. If they source Jet A from abroad and that supply has been cut off, that could create some obvio...

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by zeke
Sun Mar 06, 2022 12:21 am
Forum: Civil Aviation
Topic: Ethiopian Signing MoU for 777-8 Freighter
Replies: 53
Views: 12000

Re: Ethiopian Signing MoU for 777-8 Freighter

The 77X was basically engineered for hot/high specifically as I understand it (EK/ME3), so I’d guess the heaviest of the type (freighter) would have an advantage for Addis Ababa as well. This is not true, you would need to have a temperature of 80 deg.C/176 deg.F at DXB to have the equivalent densi...

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by zeke
Sat Mar 05, 2022 10:03 am
Forum: Technical/Operations
Topic: Installing/ Uninstalling ETOPS On An Aircraft
Replies: 48
Views: 6505

Re: Installing/ Uninstalling ETOPS On An Aircraft

No, it’s an operational approval.

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by zeke
Sat Mar 05, 2022 7:08 am
Forum: Technical/Operations
Topic: Installing/ Uninstalling ETOPS On An Aircraft
Replies: 48
Views: 6505

Re: Installing/ Uninstalling ETOPS On An Aircraft

Hello All: I am curious as to what the process is with regards to installing and uninstalling ETOPS on an aircraft. Particularly a 737. Can it be done overnight or is it typically done in a check? Also aside from safety equipment, what else is involved in making an aircraft an “ETOPS” aircraft? EDT...

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by zeke
Thu Mar 03, 2022 7:52 am
Forum: Technical/Operations
Topic: Flying a G-II with full reverse thrust? (Shuttle Training Aircraft)
Replies: 3
Views: 1662

Re: Flying a G-II with full reverse thrust? (Shuttle Training Aircraft)

Wow, excellent history. Fascinating the engineering that went into the preparation for those flights.

Hope he passes on more stories like that, and you can update us further.

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by zeke
Wed Mar 02, 2022 1:44 pm
Forum: Civil Aviation
Topic: Airbus / Qatar A350 dispute - Airbus filed defence and counter-claim
Replies: 285
Views: 69972

Re: Airbus / Qatar A350 dispute - Airbus launched counter-claim

EK have specifically mentioned about their concern regarding 350’s print issues, which proved that the problem will not be QR specific. That was before the Airbus rebutted was made public. I would bet EK have had their technical manager review the rebuttal to see how reasonable it is. Throughout th...

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by zeke
Wed Mar 02, 2022 8:17 am
Forum: Civil Aviation
Topic: Airbus / Qatar A350 dispute - Airbus filed defence and counter-claim
Replies: 285
Views: 69972

Re: Airbus / Qatar A350 dispute - Airbus launched counter-claim

I guess we have to be careful here, it may be that the problems airlines are facing are the same, but at the moment this is not established and only alleged by one party in a legal dispute. The main difference with paint peel and what QR has claimed is the timing. Paint peel tends to present itself...

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by zeke
Wed Mar 02, 2022 7:59 am
Forum: Civil Aviation
Topic: Airbus / Qatar A350 dispute - Airbus filed defence and counter-claim
Replies: 285
Views: 69972

Re: Airbus / Qatar A350 dispute - Airbus launched counter-claim

According to this article , Finnair, Cathay Pacific, Etihad, Lufthansa and Air France have noted issues as well; but it seems they have worked it out with Airbus. The article is incorrect, the other airlines had suffered paint peel which is not an issue QR has raised. Paint peel normally starts fro...

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by zeke
Wed Mar 02, 2022 12:15 am
Forum: Technical/Operations
Topic: Right and left-handed pilots and side sticks?
Replies: 21
Views: 4212

Re: Right and left-handed pilots and side sticks?

I'm right-handed. When driving, I grip the steering wheel with my left hand 90% of the time. Do you drive with your dominant hand all the time? That very much depends on what country you are talking about, this is an international forum. Those people that drive on the correct side would drive mainl...

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by zeke
Tue Mar 01, 2022 9:21 pm
Forum: Civil Aviation
Topic: Airbus / Qatar A350 dispute - Airbus filed defence and counter-claim
Replies: 285
Views: 69972

Re: Airbus / Qatar A350 dispute - Airbus launched counter-claim

What QR want, is for the court to rule the airline can delay A350 deliveries because of 'issues' (or cancel if the 'issues' can't be resolved) with no impact on retrospective credits accruing on the A350 order, so accrue as if all 80 had been delivered, AND for the linked retrospective credits on t...

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by zeke
Tue Mar 01, 2022 9:16 pm
Forum: Civil Aviation
Topic: Airbus / Qatar A350 dispute - Airbus filed defence and counter-claim
Replies: 285
Views: 69972

Re: Airbus / Qatar A350 dispute - Airbus launched counter-claim

1) I have not read the Airbus court filing but I assume they submitted the supporting documentation such as root cause analysis, engineering reports, communication with QR engineering and management etc. I can't imagine they would list of all of those and then not add support to their claims. There...

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by zeke
Tue Mar 01, 2022 2:44 pm
Forum: Civil Aviation
Topic: Airbus / Qatar A350 dispute - Airbus filed defence and counter-claim
Replies: 285
Views: 69972

Re: Airbus / Qatar A350 dispute - Airbus launched counter-claim

The new allowed damage limit is 25x as large as the old. Old: 0.2m X 0.2m equals 0.04 sq m New: 1m X 1m equals 1 sq m 1 divided by 0.04 equals 25 Incorrect, it’s 200 sq.mm, not 200mmx200mm which is 40,000 sq.mm. 200 sq.mm is a circle of just under 8mm in radius, smaller than an adult human finger c...

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by zeke
Tue Mar 01, 2022 2:33 pm
Forum: Civil Aviation
Topic: Airbus / Qatar A350 dispute - Airbus filed defence and counter-claim
Replies: 285
Views: 69972

Re: Airbus / Qatar A350 dispute - Airbus launched counter-claim

I don't see the excitement here. Counter-suing is what firms do when sued. Airbus' claims are just that - CLAIMS - which (if this goes to trial) will be evaluated by the Court against the claims of Qatar. Airbus' claims are not immediately accepted as objective fact, in contrast to the treatment re...

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by zeke
Tue Mar 01, 2022 2:18 pm
Forum: Civil Aviation
Topic: Airbus / Qatar A350 dispute - Airbus filed defence and counter-claim
Replies: 285
Views: 69972

Re: Airbus / Qatar A350 dispute - Airbus launched counter-claim

Regarding relaxation of the "allowable damage limits" from 200mm squared to 1000mm squared, is this a fudge or a normal change reflecting operational experience on a new technology frame? This sort of thing is very common, when new aircraft enter service they tend to have very conservativ...

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by zeke
Tue Mar 01, 2022 11:39 am
Forum: Civil Aviation
Topic: Airbus / Qatar A350 dispute - Airbus filed defence and counter-claim
Replies: 285
Views: 69972

Re: Airbus / Qatar A350 dispute - Airbus launched counter-claim

reidar76 wrote:
In other words, Shannon didn't follow the OEM approved process.


That theme has been repeated over and over again in the document.

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by zeke
Sat Feb 26, 2022 7:21 am
Forum: Civil Aviation
Topic: Qantas to firm up A350-1000’s for Project Sunrise by mid year
Replies: 84
Views: 22720

Re: Qantas to firm up A350-1000’s for Project Sunrise by mid year

At today’s half year results Qantas says it will firm up an order for A350-1000’s for Project Sunrise by the middle of this year with deliveries in 2025. Previously Qantas had announced their plan to buy A350-1000’s to operate flights such as SYD-JFK and SYD/MEL-LHR however due to the pandemic the ...

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by zeke
Fri Feb 25, 2022 4:28 am
Forum: Technical/Operations
Topic: Do some jetliners need to level off after takeoff climb to build speed for flap retraction?
Replies: 20
Views: 4900

Re: Do some jetliners need to level off after takeoff climb to build speed for flap retraction?

A retired TWA captain told me that at heavy weights he would have to level off at 1500 feet above field level in order to build up speed for flap retraction or sometimes just barely climb. I think he flew 747-100s. Just wondering if now a days jetliners have trouble both climbing and building up sp...

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by zeke
Fri Feb 25, 2022 3:09 am
Forum: Civil Aviation
Topic: Emirates Fleet and Network Discussions thread - 2022
Replies: 205
Views: 45041

Re: EK threatens to cancel B777X and delay 350s

hongkongflyer wrote:

He means the 779 that will be restarted as A6-EZA.


What do you mean by restarted ? rebuilt ?

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by zeke
Fri Feb 25, 2022 1:02 am
Forum: Civil Aviation
Topic: Emirates Fleet and Network Discussions thread - 2022
Replies: 205
Views: 45041

Re: EK threatens to cancel B777X and delay 350s

xwb777 wrote:
Emirates B779, A6-EZA, will be in Dubai (June and July) for hot weather testings.


Impossible with that registration

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by zeke
Sun Feb 20, 2022 11:10 pm
Forum: Civil Aviation
Topic: China Southern Airlines will retire all five Airbus A380s before the end of 2022
Replies: 40
Views: 9304

Re: China Southern Airlines will retire all five Airbus A380s before the end of 2022

I see no reason to question the general conclusion of which Aircraft is most economical where. Nor the conclusion that fuel price does not change that conclusion (fuel price is only a part of the overall cost of operation, and every aircraft is effected the same). This is simply not true, when fuel...

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by zeke
Sun Feb 20, 2022 10:57 pm
Forum: Civil Aviation
Topic: China Southern Airlines will retire all five Airbus A380s before the end of 2022
Replies: 40
Views: 9304

Re: China Southern Airlines will retire all five Airbus A380s before the end of 2022

I guess the assumption was made based on B77W takes 380 pax and A380 takes 460 pax (standard seat option, hence figure 12a, 13a or 14a), with distance of 6,000 miles (14 hours). EK A380 3 Class (long-range) - 517 seats 3 Class (ultra long-range) - 489 seats 2 Class (long-range) - 615 seats 460 seat...

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by zeke
Sun Feb 20, 2022 8:36 pm
Forum: Civil Aviation
Topic: China Southern Airlines will retire all five Airbus A380s before the end of 2022
Replies: 40
Views: 9304

Re: China Southern Airlines will retire all five Airbus A380s before the end of 2022

I saw a recent article that said on a 14 hour flight an A380 cost approximately $390,000 to operate. The 77W costs $179,000 to make the same flight. Unless you can fly the A380 absolutely full you are likely losing money relative to the 787, A350, or 777. https://www.sciencedirect.com/science/artic...

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by zeke
Fri Feb 18, 2022 9:16 pm
Forum: Civil Aviation
Topic: Qantas A330 Replacement
Replies: 151
Views: 25003

Re: Qantas A330 Replacement

Which are attached to the floor… http://www.hypercoat.com.my/image/Pic-Floor%20Panel.JPG https://www.avdec.com/img/products/sealing-systems/floorboard-sealing-system/floorboard-sealing-system-product-001-v001.jpg Typically the floor is comprised of honeycomb panels, the tracks are not attached to t...

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by zeke
Fri Feb 18, 2022 7:31 pm
Forum: Technical/Operations
Topic: Pre-Departure Walkaround Top of Fuselage
Replies: 20
Views: 4050

Re: Pre-Departure Walkaround Top of Fuselage

If catering trucks and baggage carts could impact the top of the fuselage we would inspect them more often

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by zeke
Fri Feb 18, 2022 7:24 pm
Forum: Civil Aviation
Topic: Qantas A330 Replacement
Replies: 151
Views: 25003

Re: Qantas A330 Replacement

I was intrigued by the cargo conversions of 2 x -200s. I have a dim memory that QF specified these with relatively light floors, which caused some difficulties when fitting business class seating. If that memory is correct, would that also impact the convertibility for cargo use? Floors are replace...

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by zeke
Tue Feb 15, 2022 8:51 am
Forum: Civil Aviation
Topic: Why do most airlines lease aircraft instead of buying it?
Replies: 34
Views: 6069

Re: Why do most airlines lease aircraft instead of buying it?

SYD330 wrote:
Is it true that Qatar leases most of its A350's?


Not just the A350s, most of their fleet are sale and lease back

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by zeke
Mon Feb 14, 2022 9:51 pm
Forum: Civil Aviation
Topic: Feel Good ATC Story Out Of California - C152 Student With Stuck Full Throttle
Replies: 21
Views: 4145

Re: Feel Good ATC Story Out Of California - C152 Student With Stuck Full Throttle

Theoretical question for the CFI's and other professional pilots out there: The student pilots decision to land at WVI obviously worked out, so kudos to the pilot and everyone who helped him get down. I am not trying to second guess anyone, but I am curious about one option that appeared to not com...

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by zeke
Mon Feb 14, 2022 8:48 pm
Forum: Technical/Operations
Topic: Fly-by-wire project help
Replies: 18
Views: 2102

Re: Fly-by-wire project help

Boeings approach to that problem is better. You always physically see that the autothrottles do. You always physically see what the autopilot does. You always physically see what the other pilot does. Just my 2ct That is purely your opinion, I can point to half a dozen recent accidents where having...

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by zeke
Mon Feb 14, 2022 7:08 pm
Forum: Technical/Operations
Topic: Fly-by-wire project help
Replies: 18
Views: 2102

Re: Fly-by-wire project help

Imo, the sticks not being linked - something that could be so easy to engineer - is the dumbest, most unsafe thing in commercial aviation outside of Boeing. I sometimes wonder who in the world thought that was a good idea and certified it. Have you actually used them ? If they are so unsafe, where ...

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by zeke
Mon Feb 14, 2022 6:42 pm
Forum: Civil Aviation
Topic: Why do most airlines lease aircraft instead of buying it?
Replies: 34
Views: 6069

Re: Why do most airlines lease aircraft instead of buying it?

Most airline majors owning maintenance infrastructure actually buy planes, and lease planes only for short term capacity addition. Whole fleet leasing is mostly done by low cost, fly by night operators who are unsure of their future. Owning aircraft actually makes more sense in the long run. It hel...

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by zeke
Mon Feb 14, 2022 6:32 pm
Forum: Civil Aviation
Topic: Feel Good ATC Story Out Of California - C152 Student With Stuck Full Throttle
Replies: 21
Views: 4145

Re: Feel Good ATC Story Out Of California - C152 Student With Stuck Full Throttle

It was a good outcome, having that time available to compose himself and work out a plan really helped with the execution. Nice job.

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by zeke
Sun Feb 13, 2022 11:42 pm
Forum: Civil Aviation
Topic: FedEx Eyes New Freighter Order per Reuters
Replies: 180
Views: 34397

Re: FedEx Eyes New Freighter Order per Reuters

Correct

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by zeke
Sun Feb 13, 2022 9:36 pm
Forum: Civil Aviation
Topic: FedEx Eyes New Freighter Order per Reuters
Replies: 180
Views: 34397

Re: FedEx Eyes New Freighter Order per Reuters

Lets cover the certification question 1st. A key advantage that the 764 has is that it's passenger variant was certified with the more advanced 777 cockpit. I see lines like this being thrown around a.net from time to time, fundamentally the 764 is just another 767, they have updated the displays h...

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by zeke
Sun Feb 13, 2022 8:09 pm
Forum: Civil Aviation
Topic: Emirates serious incident on takeoff on EK231 DXB-IAD on 20 December 2021
Replies: 284
Views: 74332

Re: Emirates serious incident on takeoff on EK231 DXB-IAD on 20 December 2021

The only way to train that spare capacity needed to operate safely while flying manual, is by flying manual regularly. That mental capacity comes in handy when dealing with situations on board (routing issues, nnc, cabin issues,…) I disagree, simulator time can do that. Someone suggested there was ...

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by zeke
Sun Feb 13, 2022 2:30 pm
Forum: Technical/Operations
Topic: FAA Draft AC on Flight Path Management
Replies: 13
Views: 2322

Re: FAA Draft AC on Flight Path Management

3.2.2.1 An air carrier’s line operations policy should permit and encourage MFO and should incorporate the following: 1. Encouragement to manually fly the aircraft when conditions permit, including, at least periodically, the entire departure and arrival phases and potentially the entire flight, if...

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by zeke
Sun Feb 13, 2022 2:16 pm
Forum: Technical/Operations
Topic: Why is it that after professional engineering that some aircraft do not meet performance guarantees?
Replies: 3
Views: 1709

Re: Why is it that after professional engineering that some aircraft do not meet performance guarantees?

Some aircraft are modified after flight testing to attempt or succeed at meeting customer performance guarantees or expectations. Don't know much about the history of Airbus and Boeing airliners, but McDonnell Douglas introduced PIPs to remedy or attempt to remedy performance shortcomings in the DC...

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by zeke
Sun Feb 13, 2022 2:11 pm
Forum: Technical/Operations
Topic: How to become a flight inspector?
Replies: 7
Views: 1383

Re: How to become a flight inspector?

That is, he can teach to fly on different aircraft, give permission for the aircraft? Just how do inspectors give permission for the MiG-17 fighter? Do they know how to fly on their own? That is part of the FAA Vintage & Experimental Aircraft Program, how the practically go about doing that you...

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by zeke
Sun Feb 13, 2022 1:38 pm
Forum: Civil Aviation
Topic: Emirates serious incident on takeoff on EK231 DXB-IAD on 20 December 2021
Replies: 284
Views: 74332

Re: Emirates serious incident on takeoff on EK231 DXB-IAD on 20 December 2021

Not so fast - you're talking about disparate bell curves running in parallel. Here, we're talking about the automation vs. hand flying skill degradation curve. Fundamentally he is correct. Whenever hand flying either back then or today the amount of spare capacity any pilot has is less than if you ...

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by zeke
Sun Feb 13, 2022 9:51 am
Forum: Civil Aviation
Topic: Qatar Airways News and Discussion Thread - 2022
Replies: 109
Views: 25697

Re: Qatar Airways News and Discussion Thread - 2022

https://twitter.com/cliper31/status/149 ... 44388?s=21


Actually really like that livery, IMHO better than their current one.

Thanks for sharing.
-->

qf789 wrote:
Qatar Airways 77W A7-BAC has been repainted in retro livery

Image

https://twitter.com/cliper31/status/149 ... 44388?s=21


Actually really like that livery, IMHO better than their current one.

Thanks for sharing.

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by zeke
Sat Feb 12, 2022 9:07 pm
Forum: Civil Aviation
Topic: Airbus cancels two A350-1000 for Qatar Airways
Replies: 76
Views: 17381

Re: Airbus cancels two A350-1000 for Qatar Airways

I remember that time when Boeing purchased all of SQ's A340, as a partial exchange for their purchase of 777s, including airplanes not yet delivered, if memory serves. I guess AAB would love to be offered a similar deal… But I doubt Boeing could pull that one, this time… They purchased the entire A...

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by zeke
Sat Feb 12, 2022 7:08 am
Forum: Technical/Operations
Topic: Do any jetliners sometimes require packs-off approaches?
Replies: 9
Views: 2530

Re: Do any jetliners sometimes require packs-off approaches?

I know that some jetliners perform packs-off or one-pack off takeoffs in certain circumstances, but do any perform packs-off landings? I would think that since LGW is much lower than TGW, that even if go-around thrust were required that there would be no need to not use the packs but perhaps I am a...

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by zeke
Sat Feb 12, 2022 1:34 am
Forum: Civil Aviation
Topic: Australian Aviation Thread - February 2022
Replies: 374
Views: 62809

Re: Australian Aviation Thread - February 2022

rtav wrote:
Problem is, Perth has no such hangar to support an A330. Recently one of the engines was also removed so not sure what’s going on there with that.


The big blue one will be just fine

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by zeke
Fri Feb 11, 2022 8:21 pm
Forum: Technical/Operations
Topic: What Is the Minimum Runway Width for Airline Service?
Replies: 16
Views: 3127

Re: What Is the Minimum Runway Width for Airline Service?

It seems like airports with scheduled airline service have 150' runway width. Is that required for Part 121? Can it be 100'? FAA and ICAO have tables based upon runway geometry, wing span and main gear distance as to the minimum runway width required 100 ft width runways are allowable for certain t...

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