Search found 1653 matches

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by RickNRoll
Mon Jul 15, 2019 8:18 am
Forum: Civil Aviation
Topic: Boeing 777X Testing Thread - 2019
Replies: 498
Views: 137270

Re: Boeing 777X Testing Thread - 2019

I thought the GE 9x needed to put out less thrust?

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by RickNRoll
Sun Jul 14, 2019 10:15 pm
Forum: Civil Aviation
Topic: Emirates A380 encounters heavy turbulence
Replies: 24
Views: 9702

Re: Emirates A380 encounters heavy turbulence

Jouhou wrote:
Is there something unusual going on in the Earth's atmosphere right now? There seems to be a dramatic increase in "severe turbulence" incidents lately.
With global warming there is more energy in the atmosphere.

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by RickNRoll
Sun Jul 14, 2019 10:03 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 695
Views: 97190

Re: Boeing 737MAX Grounded Worldwide Q3 2019

I think more likely it means getting the simulators to accurately simulate the required force and enhance training for load alleviation (aka "roller coaster procedure") when in extreme situations. I don't think the changes to the wheel on the NG caused the issue as it was already present ...

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by RickNRoll
Sat Jul 13, 2019 11:48 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 695
Views: 97190

Re: Boeing 737MAX Grounded Worldwide Q3 2019

Firing working level technical staff solves zero issue. They need to look at Boeing corporate management, the ones that are company officers Unless it is shown that corporate management made the call on the MCAS design I disagree. It is most likely engineers and engineering managers that made the c...

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by RickNRoll
Sat Jul 13, 2019 9:13 am
Forum: Civil Aviation
Topic: IAG 737 Max Order Is Prompted by More Than Just Price: CEO
Replies: 130
Views: 18201

Re: IAG 737 Max Order Is Prompted by More Than Just Price: CEO

Indeed. To order such a dubious aircraft would require some serious discounts. The A320NEO is currently flying all over the world. The 737 MAX is just filling up parking lots with lots of angry customers. Not so long ago, Airbus had quite a glider collection piled up at Toulouse themselves, so Airb...

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by RickNRoll
Fri Jul 12, 2019 9:37 pm
Forum: Civil Aviation
Topic: IAG 737 Max Order Is Prompted by More Than Just Price: CEO
Replies: 130
Views: 18201

Re: IAG 737 Max Order Is Prompted by More Than Just Price: CEO

Ironic reasons given the mess with the MAX. Indeed. To order such a dubious aircraft would require some serious discounts. The A320NEO is currently flying all over the world. The 737 MAX is just filling up parking lots with lots of angry customers. The NEO was filling up quite a few parking lots it...

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by RickNRoll
Thu Jul 11, 2019 5:33 am
Forum: Civil Aviation
Topic: Potential Heathrow expansion revealed
Replies: 19
Views: 6949

Re: Potential Heathrow expansion revealed

Third runway will be cancelled when Boris becomes PM.

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by RickNRoll
Mon Jul 08, 2019 10:09 pm
Forum: Civil Aviation
Topic: Why no IAE engine options for A320 NEO?
Replies: 7
Views: 2209

Re: Why no IAE engine options for A320 NEO?

You need to remember International Aero-Engines (IAE) is not an independent engine company, it's an alliance between Pratt & Whitney and Rolls Royce. Pratt makes the PW1000G. RR seems to have no real skin in this market currently. RR sold its part of IAE to PW a while ago. RR now acts as a supp...

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by RickNRoll
Mon Jul 08, 2019 9:19 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 695
Views: 97190

Re: Boeing 737MAX Grounded Worldwide Q3 2019

I think there were some people in the FAA who were not happy with what Boeing were doing and suspected or knew that the flight computers were in danger of being overloaded if a full failure tree was investigated.

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by RickNRoll
Sun Jul 07, 2019 12:55 pm
Forum: Civil Aviation
Topic: Emirates renegotiating 777X order
Replies: 545
Views: 90354

Re: Emirates renegotiating 777X order

In any case, How much lighter is CFRP VS Aluminum alloys? CFRP is best for wings and tail. Aluminum-lithium is best for the fuselage tube. Carbon composite is lighter but you can not detect fatigue cracking. Having a bit of fuel leaking from the wing is a minor problem compared to explosive decompr...

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by RickNRoll
Sun Jul 07, 2019 12:52 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 695
Views: 97190

Re: Boeing 737MAX Grounded Worldwide Q3 2019

I thought I had read that the trim wheels for the 737MAX were smaller than for the NG, thus requiring greater force. But apparently that happened during the changes from the 737-200 Classic to the 737NG. It is not clear if the gearing of the manual actuators was changed to compensate, but in light ...

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by RickNRoll
Sun Jul 07, 2019 2:18 am
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 695
Views: 97190

Re: Boeing 737MAX Grounded Worldwide Q3 2019

Trim wheel issue is likely Max only. Appearantly Max electrical trim " does not have enough authority to completely trim the aircraft longitudinally in certain corners of the flight envelope, e.g. gear up/flaps up, aft center of gravity, near Vmo/Mmo corner, and gear down/flaps up, at speeds a...

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by RickNRoll
Sun Jul 07, 2019 2:12 am
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 695
Views: 97190

Re: Boeing 737MAX Grounded Worldwide Q3 2019

You present Boeing PR fluff as fact to dismiss statements by the EASA Revelation. That's pretty improper if you ask me. Actually it does not dismiss statements by the EASA, that's just the spin you are applying. It's quite possible Boeing fully understands what EASA is requesting and still feels it...

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by RickNRoll
Sat Jul 06, 2019 7:27 am
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 695
Views: 97190

Re: Boeing 737MAX Grounded Worldwide Q3 2019

You keep bringing that statement up but a) "returned to service by September" does not equal worldwide ungrounding. It's pretty likely from multiple statements including that Bloomberg article Europe will likely follow later and China even later still. If there is a worldwide ungrounding,...

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by RickNRoll
Mon Jul 01, 2019 10:07 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 695
Views: 97190

Re: Boeing 737MAX Grounded Worldwide Q3 2019

Personally, I would like to see the test run again with line Max pilots not FAA Pilots. It's not beyond the scope for this to have been an attempt to "see we are being tough" by the FAA. I would not put this past them given their current quandary. There is simply too much of a disconnect ...

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by RickNRoll
Mon Jul 01, 2019 9:54 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 695
Views: 97190

Re: Boeing 737MAX Grounded Worldwide Q3 2019

Reading online it appears the actual failure mode tested is one FCC inop. That configuration requires the second FCC to handle more computation than normal case. It does appear that worst case computation resource analysis is botched so that FCC task overrun and hence electric trim not responding i...

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by RickNRoll
Mon Jul 01, 2019 1:46 pm
Forum: Civil Aviation
Topic: Ten dead after King Air crashes shortly after takeoff
Replies: 59
Views: 14793

Re: Ten dead after King Air crashes shortly after takeoff

Reminds me of this king air accident, crashed into a building adjacent to the airport soon after takeoff with and engine failure. Gear was not retracted following the failure, failed to climb. https://www.atsb.gov.au/publications/investigation_reports/2017/aair/ao-2017-024/ https://www.atsb.gov.au/...

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by RickNRoll
Sun Jun 30, 2019 8:51 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 695
Views: 97190

Re: Boeing 737MAX Grounded Worldwide Q3 2019

So, we see, with these numbers, that we put in a positive 25.6 percent elevator travel going from 10 degrees to 14 degrees AOA, but at the same time MCAS puts in AND negative 71 percent worth of elevator travel MCAS works through the trimmable horizontal stabilizer, not the elevators. Hence why Ste...

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by RickNRoll
Sun Jun 30, 2019 8:49 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 695
Views: 97190

Re: Boeing 737MAX Grounded Worldwide Q3 2019

Hard to believe a few 80286's can't handle MCAS, but a few 68000's and 80186's can keep a spanking new GTF-powered A321LR controllable without a hitch. I don't think it's the hardware - most likely bloated code done by millennials like myself (I.E. Windows 10). The A320 has had some hitches. The mo...

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by RickNRoll
Sat Jun 29, 2019 10:18 pm
Forum: Civil Aviation
Topic: Boeing falsified records for a 787 sold to AC
Replies: 92
Views: 25993

Re: Boeing falsified records for a 787 sold to AC

This is also the site where a noose was hung over an employee's desk. Very real cultural problems there in other ways.

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by RickNRoll
Sat Jun 29, 2019 8:33 am
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3768
Views: 382626

Re: Boeing 737MAX Grounded Worldwide Q2 2019

Or even point out that if all those alerts are going off don't put the flaps up. Follow UAS procedure and land ASAP.

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by RickNRoll
Sat Jun 29, 2019 8:29 am
Forum: Civil Aviation
Topic: Boeing falsified records for a 787 sold to AC
Replies: 92
Views: 25993

Re: Boeing falsified records for a 787 sold to AC

Am I wrong in thinking this is actually not all that uncommon? Not saying it's ok, just that it happens more often than it makes its way to a.net. It’s called pencil whipping. It’s fairly common in the industry. Too many regulations and useless paperwork encourage the practice. Not good when it inv...

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by RickNRoll
Sat Jun 29, 2019 8:27 am
Forum: Civil Aviation
Topic: Boeing falsified records for a 787 sold to AC
Replies: 92
Views: 25993

Re: Boeing falsified records for a 787 sold to AC

How do you know this was a cultural issue rather than individual laziness? Because this sort of stuff is happening way too often, it a corporate culture problem that needs to be addressed from the top down. Sloppy 737MAX MCAS implementation and 'hiding' it from FAA & pilots (plus the other issu...

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by RickNRoll
Sat Jun 29, 2019 3:49 am
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3768
Views: 382626

Re: Boeing 737MAX Grounded Worldwide Q2 2019

According to Bloomberg the flight control computer problems now reach back to the NG, with planes displaying uncontrolled, random behaviour. Pilots are not happy. http://www.theage.com.au/business/companies/pilots-battled-computer-problems-on-other-boeing-jets-besides-the-max-20190628-p5224z.html O...

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by RickNRoll
Sat Jun 29, 2019 1:28 am
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3768
Views: 382626

Re: Boeing 737MAX Grounded Worldwide Q2 2019

http://www.theage.com.au/business/compa ... 5224z.html
-->

According to Bloomberg the flight control computer problems now reach back to the NG, with planes displaying uncontrolled, random behaviour. Pilots are not happy.
http://www.theage.com.au/business/compa ... 5224z.html

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by RickNRoll
Sat Jun 29, 2019 1:05 am
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3768
Views: 382626

Re: Boeing 737MAX Grounded Worldwide Q2 2019

It discusses a seemingly similar situation where a knowingly "broken processor" was used with no issues in Ariane 4, as the flight parameters would never reach the processor-software interaction limitations. The same set-up on Ariane 5 resulted in failure of first flight as flight paramet...

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by RickNRoll
Fri Jun 28, 2019 12:16 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3768
Views: 382626

Re: Boeing 737MAX Grounded Worldwide Q2 2019

They tried to see if the processor could be overloaded and of that happened did it affect control of the plane. They could and it did.

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by RickNRoll
Fri Jun 28, 2019 6:23 am
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3768
Views: 382626

Re: Boeing 737MAX Grounded Worldwide Q2 2019

So this isn't MCAS, it is something in the MAX software, which is different from the NG software. And the manual trim wheel recovery is free and clear for the NG and the MAX, or where does the FAA stand on that right now? I guess the NG is flying, so they must not be too concerned with the safety o...

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by RickNRoll
Thu Jun 27, 2019 9:57 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3768
Views: 382626

Re: Boeing 737MAX Grounded Worldwide Q2 2019

Just imagine for a moment spending a few seconds finding the QRH which then tells you to repond within 3 seconds. No it doesnt, nor does the EID because it is ludicrous. Ray No need to find the QRH as the response to a Stab Trim Runaway is a memory item, as stated many times on this thread.. I don'...

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by RickNRoll
Thu Jun 27, 2019 12:30 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3768
Views: 382626

Re: Boeing 737MAX Grounded Worldwide Q2 2019

According to google the CPU is a Motorola 68040 running at 60 MHz. A fine CPU back in its day but possibly not up to coping with a complex situation such as an MCAS event. Modern CPUs for control systems such as this run at about 2000 MHz. (Give our take). The A320 would have a CPU with a similar vi...

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by RickNRoll
Thu Jun 27, 2019 11:59 am
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3768
Views: 382626

Re: Boeing 737MAX Grounded Worldwide Q2 2019

Basically another potentially fatal fault was discovered unrelated to the MCAS issue that was being tested for and this fault has also been there from the start? Apparently, the bug was in the NEW code, which was developed as a fix for MCAS! https://www.theregister.co.uk/2019/06/27/boeing_737_max_c...

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by RickNRoll
Thu Jun 27, 2019 9:20 am
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3768
Views: 382626

Re: Boeing 737MAX Grounded Worldwide Q2 2019

The problem is that the processor is an old one that does not appear to have enough power to run more complex time critical calculations. The processor cannot be easily changed. The process to do so would take years since they are tested so thoroughly. You change the processor and ask the code has ...

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by RickNRoll
Thu Jun 27, 2019 8:36 am
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3768
Views: 382626

Re: Boeing 737MAX Grounded Worldwide Q2 2019

https://edition.cnn.com/2019/06/26/politics/boeing-737-max-flaw/index.html Havent seen it posted before... it seems a New flaw discovered on Boeing 737 Max. "In simulator tests, government pilots discovered that a microprocessor failure could push the nose of the plane toward the ground. It is...

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by RickNRoll
Thu Jun 27, 2019 8:33 am
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3768
Views: 382626

Re: Boeing 737MAX Grounded Worldwide Q2 2019

I came here to read about the issues recently discovered per various news sites, to see how they might affect return to flight. But what found was continued tirade +1 So based on my understanding of the news reports, the new issue seems to not be directly related to MCAS. It was discovered by a FAA...

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by RickNRoll
Mon Jun 24, 2019 2:29 am
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3768
Views: 382626

Re: Boeing 737MAX Grounded Worldwide Q2 2019

frmrCapCadet wrote:
res FAA: at minimum FAA should appoint the Boeing certifyers, and those appointed people should report to the FAA not Boeing managers.


It's Quality Process 101.

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by RickNRoll
Sun Jun 23, 2019 11:13 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3768
Views: 382626

Re: Boeing 737MAX Grounded Worldwide Q2 2019

There a lot of Boeing internals details on the MCAS, very interesting, a must read. It support the scenario where time and money played a significant role in the process. New to me that the KC-46 MCAS was a very different system that use both AoA sensors. I can't believe changes to the MCAS design ...

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by RickNRoll
Sun Jun 23, 2019 5:07 am
Forum: Travel, Polls & Preferences
Topic: Media: Airbus to challenge IAG, Boeing deal for 200 MAX?
Replies: 124
Views: 16571

Re: Airbus seeks to break Boeing/AIG deal

I would like to believe that what they care about is did IAG secure a deal that will grow the airline's revenues and, by extension, their stock price. If adding the MAX to the A320 is how AIG does that, then I would not be surprised if they are satisfied. It's about following a proper prices when a...

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by RickNRoll
Sun Jun 23, 2019 2:46 am
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3768
Views: 382626

Re: Boeing 737MAX Grounded Worldwide Q2 2019

Sully credentials speak for themselves and is not questioned, however he never flew a MAX much less one that experienced an MCAS event. Now does that mean he has nothing to say, no, but does that mean that on MCAS issues he has more to contribute than the 3 pilots who survived the event? Sully cred...

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by RickNRoll
Thu Jun 20, 2019 11:41 pm
Forum: Travel, Polls & Preferences
Topic: Media: Airbus to challenge IAG, Boeing deal for 200 MAX?
Replies: 124
Views: 16571

Re: Airbus seeks to break Boeing/AIG deal

Surely the IAG shareholders will want to know why a contract this size was awarded with no RFP? even if the intention was to order the Max anyway, shouldn't you at least dot the Is and cross the Ts? I would like to believe that what they care about is did IAG secure a deal that will grow the airlin...

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by RickNRoll
Thu Jun 20, 2019 8:33 am
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3768
Views: 382626

Re: Boeing 737MAX Grounded Worldwide Q2 2019

According to Sully. "I recently experienced all these warnings in a 737 MAX flight simulator during recreations of the accident flights. Even knowing what was going to happen, I could see how crews could have run out of time before they could have solved the problems. Prior to these accidents, ...

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by RickNRoll
Wed Jun 19, 2019 10:03 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3768
Views: 382626

Re: Boeing 737MAX Grounded Worldwide Q2 2019

WSJ has an article discussing the physical requirements of a pilot to control the manual trim at high speeds and sharp angles of attack. https://www.wsj.com/articles/physical-strength-of-pilots-emerges-as-issue-in-returning-737-max-to-flight-11560937879 This shouldn't be a surprise to most of us he...

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by RickNRoll
Wed Jun 19, 2019 9:45 pm
Forum: Civil Aviation
Topic: Updated: AA agrees to order 50 Airbus A321XLR's
Replies: 325
Views: 52790

Re: Updated: AA agrees to order 50 Airbus A321XLR's

A.net is funny. Many here proclamimg the end of the 797 because of upgrades to “warmed over” 1988 A320. Yet on other threads many bash Boeing for making a “warmer over” 1968 737 MAX instead of a new “clean sheet”’737 replacement in response to the NEO back in 2011. So which is it??? More evidence a...

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by RickNRoll
Wed Jun 19, 2019 9:20 am
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3768
Views: 382626

Re: Boeing 737MAX Grounded Worldwide Q2 2019

The public will fly on it if it is cleared. It will be interesting to see the details of just what Boeing had to do to get it airborne again and what it has done to get to where we are.

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by RickNRoll
Tue Jun 18, 2019 12:32 am
Forum: Civil Aviation
Topic: Turbulence: Flight Attendant slammed into ceiling (video)
Replies: 21
Views: 4451

Re: Turbulence: Flight Attendant slammed into ceiling (video)

Why was she serving drinks? It was looking very unsettled already.

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by RickNRoll
Mon Jun 17, 2019 10:26 pm
Forum: Civil Aviation
Topic: Moxy - News and Discussion Thread
Replies: 408
Views: 61584

Re: GE to finance first 9 Moxie aircraft

I doubt the folks at GE Capital care too much about the type of engines an aircraft has... They’re investment guys making money for their business unit and obviously they thought the terms of this deal were good for them. Good luck to Mr. Neeleman on this venture, it’s always fun to watch someone t...

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by RickNRoll
Mon Jun 17, 2019 11:00 am
Forum: Civil Aviation
Topic: United 757-200 hard landing at EWR
Replies: 166
Views: 39249

Re: United 757-200 hard landing at EWR

Is it true that “pilots trained in the US would have successfully been able to control this situation”.

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by RickNRoll
Mon Jun 17, 2019 8:06 am
Forum: Civil Aviation
Topic: Updated: Qantas saying it is almost ready to select Project Sunrise aircraft
Replies: 1327
Views: 228092

Re: Updated: Qantas saying it is almost ready to select Project Sunrise aircraft

Even that story is true it could be Airbus sales ordering them to hand over to QANTAS staff as a gift.

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by RickNRoll
Sun Jun 16, 2019 11:11 pm
Forum: Civil Aviation
Topic: Emirates renegotiating 777X order
Replies: 545
Views: 90354

Re: Emirates renegotiating 777X order

Is it possible that these negotiations were partly triggered by Boeing not seeing a business case for the 778? Hypothetically speaking, that would also have to mean that Boeing doesn’t see Qantas going their way for Sunrise. I’m reluctant to buy this theory, although it certainly did make me think....

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by RickNRoll
Sun Jun 16, 2019 12:56 pm
Forum: Civil Aviation
Topic: Emirates renegotiating 777X order
Replies: 545
Views: 90354

Re: Emirates renegotiating 777X order

I guess that EK has a hub model and the 777-8X is now about long range point to point. The model clashes with the role of the 777-8. Perhaps EK is rethinking how it will fit in and what could better suit EK.

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