Search found 44 matches

by oOfredOo
Tue Dec 17, 2019 7:46 am
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q4 2019, Production suspended
Replies: 5670
Views: 759749

Re: Boeing 737MAX Grounded Worldwide Q4 2019, Production suspended

I'm getting tired of the uninformed "We can surely just waive the stick feel requirement" posts in this thread. Please read what Nasa has written about the wind up turn test, what its objectives are, and why it is required: https://www.scribd.com/document/53095046/NASA-Information-Summarie...

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by oOfredOo
Sat Dec 14, 2019 8:13 am
Forum: Civil Aviation
Topic: Something wrong with Boeing's safety culture?
Replies: 369
Views: 51546

Re: Something wrong with Boeing's safety culture?

I understand the military is particularly cautious, but facts don't care about your feelings, and this is getting ridiculous. The FAA is silent, EASA is intruding where they never have before, Boeing is communicating left and right, and you don't see this is one big political game? Well, Boeing sho...

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by oOfredOo
Tue Nov 26, 2019 10:01 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q4 2019, Production suspended
Replies: 5670
Views: 759749

Re: Boeing 737MAX Grounded Worldwide Q4 2019

You may be right - we can't know for sure. However, I'm pretty sure though there has never been a stall that led to a fatal crash in an FBW aircraft that had back driven or at least linked controls. At the risk of responding to an off-topic remark again, but this just begs for a correction. Asiana ...

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by oOfredOo
Sun Oct 06, 2019 7:06 am
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q4 2019, Production suspended
Replies: 5670
Views: 759749

Re: Boeing 737MAX Grounded Worldwide Q4 2019

In the incident covered by the "60 Minutes Australia" piece (I forget if it was JT or ET,7 I can dig up my post), I showed it was two minutes from take off till MCAS kicked in. One would hope the "immediate" reaction to stick shaker would be to do the above, no? Yes, nothing in ...

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by oOfredOo
Thu Aug 08, 2019 2:00 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 4380
Views: 684878

Re: Boeing 737MAX Grounded Worldwide Q3 2019

I just have no clue how you recover in the case I mentioned. Maybe having 2 machines running makes the probability so low that that solves the problem? I dunno....but thanks anyway. There is still something like a watchdog timer to reset the CPU to a known state and start executing again after any ...

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by oOfredOo
Wed Aug 07, 2019 12:18 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 4380
Views: 684878

Re: Boeing 737MAX Grounded Worldwide Q3 2019

https://www.wired.com/story/boeing-737- ... and-downs/
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Wired reports the 737-7 flight yesterday as an "engineering flight" gathering data at the request of the FAA.

https://www.wired.com/story/boeing-737- ... and-downs/

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by oOfredOo
Wed Aug 07, 2019 5:33 am
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 4380
Views: 684878

Re: Boeing 737MAX Grounded Worldwide Q3 2019

When the 737 Max hopefully resume flying again in Nov/Dec and after all its modifications and FAA and EASA approvals, it will be one of the safest plane as it would have gone through very thorough and exhautsive tests and scrutiny by the regulators. If only half of the articles about the FAA delega...

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by oOfredOo
Sun Aug 04, 2019 5:27 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 4380
Views: 684878

Re: Boeing 737MAX Grounded Worldwide Q3 2019

Thorkel, thanks for the VxWorks overview. What’s your guess on an OS for the computers aboard the MAX? I personally doubt there is one. I concur. This website lists the Boeing 737 software as written in Ada. https://www2.seas.gwu.edu/~mfeldman/ada-project-summary.html If it's correct, at least we k...

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by oOfredOo
Fri Aug 02, 2019 5:44 am
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 4380
Views: 684878

Re: Boeing 737MAX Grounded Worldwide Q3 2019

I’ve read the article and as another embedded software engineer I find it plausible as well. I also think that the probability of this specific combination of bit flips occurring is very low h Cosmic rays is nonsense. It should be obvious that whatever problem the FAA identified and Boeing is fixin...

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by oOfredOo
Fri Aug 02, 2019 12:25 am
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 4380
Views: 684878

Re: Boeing 737MAX Grounded Worldwide Q3 2019

I’ve read the article and as another embedded software engineer I find it plausible as well. I also think that the probability of this specific combination of bit flips occurring is very low. 1Kbit of memory already puts this in 10^-14 territory. 5 bit flips due to cosmic rays is in itself already e...

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by oOfredOo
Sat Jul 27, 2019 5:20 am
Forum: Technical/Operations
Topic: Aircraft Brakes
Replies: 41
Views: 4906

Re: Aircraft Brakes

Future braking will be electric at low speeds. Taxi under your own power, no pushback, delayed engine starts, fuel savings and regenerative braking similar to your Tesla. No way steel brakes will return. https://www.safran-landing-systems.com/systems-equipment/electric-taxiing-0 https://www.flightgl...

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by oOfredOo
Mon May 13, 2019 4:08 pm
Forum: Non-Aviation
Topic: China threats Boeing to punish for Trump policy
Replies: 139
Views: 17914

Re: China threats Boeing to punish for Trump policy

Or how about addressing a MASSIVE trade deficit? But then, if you don't live in the US, why would you care? While the tech-transfer requirements should absolutely be attacked, tariffs to go after a trade deficit are assinine. Every other country in the world does tariffs. Why must the United States...

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by oOfredOo
Mon May 06, 2019 6:03 pm
Forum: Civil Aviation
Topic: NORDSTAR 737 slides off runway
Replies: 13
Views: 4151

Re: NORDSTAR 737 slides off runway

They could just lower the engines on the Max again. The scraping engine nacelles would provide a nice decrease in landing distance and remove the need for MCAS at the same time...

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by oOfredOo
Fri Mar 29, 2019 5:55 am
Forum: Civil Aviation
Topic: European Aviation Market: Total Disaster
Replies: 112
Views: 16489

Re: European Aviation Market: Total Disaster

Cost of capital too low due to a decade of zero interest rates. This fuels purchase of too much hardware based on ever increasing projections of a market that is not there. There will be blood in other sectors as well.

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by oOfredOo
Mon Mar 25, 2019 8:15 pm
Forum: Civil Aviation
Topic: Ethiopian Airlines 737MAX crashes enroute to Nairobi Q1 2019
Replies: 5479
Views: 763207

Re: Ethiopian Airlines 737MAX crashes enroute to Nairobi

ABSOLUTE LIES AND BS. Mcas is required for the aircraft to achieve the same type rating for how it handles near a certain stall condition. MCAS IS NOT A SAFETY REQUIREMENT. THE AIRCRAFT IS PERFECTLY FLYABLE WITHOUT IT. It would require an additional training module and different stall procedures fr...

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by oOfredOo
Sun Jan 20, 2019 3:00 pm
Forum: Civil Aviation
Topic: Lion Air 737MAX8 Crashed Jakarta to Pangkal Pinang
Replies: 3187
Views: 622192

Re: Lion Air 737MAX8 Crashed Jakarta to Pangkal Pinang

https://www.jawapos.com/humaniora/15/01 ... -ditemukan

and from Av Herald:

http://avherald.com/h?article=4bf90724/0009&opt=0

Looks like the CVR to me.
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Five minutes of googling should put the no photo conspiracies to rest. From a newspaper:

https://www.jawapos.com/humaniora/15/01 ... -ditemukan

and from Av Herald:

http://avherald.com/h?article=4bf90724/0009&opt=0

Looks like the CVR to me.

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by oOfredOo
Sun Feb 04, 2018 8:19 am
Forum: Civil Aviation
Topic: February 3rd: DHL 767 circling west of Orlando at 1100ft - why?
Replies: 17
Views: 4850

Re: February 3rd: DHL 767 circling west of Orlando at 1100ft - why?

Airdrops? Guess it was a delivery flight...

I’ll see myself out.

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by oOfredOo
Thu Nov 02, 2017 1:00 am
Forum: Civil Aviation
Topic: No deal brexit effect on Heathrow
Replies: 18
Views: 2597

Re: No deal brexit effect on Heathrow

I always thought that IAG / BA had a similar structure like KLM / AF where economic majority ownership is within the holding but voting rights are national majorities. The voting rights count for the Chicago convention and many bilaterals, hence e.g. why KLM and BA get to keep their landing rights....

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by oOfredOo
Wed Nov 01, 2017 9:09 pm
Forum: Civil Aviation
Topic: No deal brexit effect on Heathrow
Replies: 18
Views: 2597

Re: No deal brexit effect on Heathrow

It ought to be possible for fellow IAG airlines Aer Lingus and BA to exchange rotations on LHR-BHD for ones on LHR-DUB if necessary to comply with whatever rules apply from 2019. You are not counting the fact that IAG is actually a Spanish company, which could be forced to sell 51% of BA if the UK ...

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by oOfredOo
Sun Oct 29, 2017 10:14 am
Forum: Civil Aviation
Topic: Boeing Has a Secret Weapon for Competing With the Airbus A321
Replies: 83
Views: 23347

Re: Boeing Has a Secret Weapon for Competing With the Airbus A321

Something does not add up. List price of an A320 neo now is more than $11m higher than it was back then. Unless AA got a below market average discount for an 260 aircraft order, and Boeing is now dumping the Max 10 at 60% discounts, the math does not add up. I’d say it’s more wishful thinking than t...

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by oOfredOo
Tue Oct 24, 2017 9:50 pm
Forum: Civil Aviation
Topic: Airbus seeks to cut repayments to government from controversial 'launch investment' for new jets
Replies: 101
Views: 15764

Re: Airbus seeks to cut repayments to government from controversial 'launch investment' for new jets

Nice of them to use the 40% figure to sound impressive, but no sensible investor would be happy with 40% return over 17 years, especially for loans that are said to be so risky no commercial entity would provide them. Currently Airbus turns over EUR 65B per year so they can afford to repay their lo...

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by oOfredOo
Tue Oct 03, 2017 11:40 pm
Forum: Civil Aviation
Topic: Princess Juliana Airport set to reopen October 6th
Replies: 153
Views: 29024

Re: Princess Juliana Airport set to reopen October 6th

I am a little surprised at the level of damage to the terminal. Wouldn't one expect a major civic and modern facility to hold up better under hurricane conditions? I hope they replace the roof with something more resilient. This will have anmajor impact on some of the neighboring islands also, some...

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by oOfredOo
Tue Sep 19, 2017 6:08 pm
Forum: Civil Aviation
Topic: What happened to KL 1208 during end of approach at Schiphol?
Replies: 2
Views: 1092

Re: What happened to KL 1208 during end of approach at Schiphol?

https://www.liveatc.net/archive.php

Mp3 recording of EHAM Tower at 11:30Z:

http://archive-server.liveatc.net/eham/ ... -1130Z.mp3

KLM10M was too close to a 777 in front and was told by the controller to go around.
-->

There is an audio archive on liveatc.net: https://www.liveatc.net/archive.php

Mp3 recording of EHAM Tower at 11:30Z:

http://archive-server.liveatc.net/eham/ ... -1130Z.mp3

KLM10M was too close to a 777 in front and was told by the controller to go around.

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by oOfredOo
Tue Aug 01, 2017 6:50 am
Forum: Civil Aviation
Topic: What *should* Airbus have invested in (year 2000)
Replies: 89
Views: 9036

Re: What *should* Airbus have invested in (year 2000)

Amazon stock. It went from 15.56 to 987.78 USD, so those 20B EUR would be worth around 1,200B EUR or enough money to buy Boeing (plus many politicians), close shop and still be awfully rich. This is a fantasy thread, so the fact that those 20B EUR would have bought more Amazon shares than ever exis...

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by oOfredOo
Sat May 27, 2017 5:29 pm
Forum: Civil Aviation
Topic: BA experiencing computer problems.
Replies: 200
Views: 30041

Re: BA experiencing computer problems.

I wonder are they able to rebook passengers onto other airlines? Because this procedure relies on the IT system too? Problem is that they can't verify the bookings. Anyone can show up at their desk and claim they have a booking to a certain destination. BA can't check if that's true or not, so befo...

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by oOfredOo
Sun May 21, 2017 8:55 pm
Forum: Technical/Operations
Topic: How was this diversion better?
Replies: 7
Views: 1802

Re: How was this diversion better?

viewtopic.php?t=1363019
-->

Probably so they could name the baby boy Cyprus. Turkey would have sounded awful....

On a more serious note, I think it has already been answered.. viewtopic.php?t=1363019

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by oOfredOo
Wed May 17, 2017 8:22 pm
Forum: Civil Aviation
Topic: "Welcome on board, this is your king speaking ... "
Replies: 79
Views: 12423

Re: "Welcome on board, this is your king speaking ... "

I'm wondering who gets to be king for two days a month then? Do the FOs take turns?

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by oOfredOo
Wed May 17, 2017 6:37 pm
Forum: Civil Aviation
Topic: "Welcome on board, this is your king speaking ... "
Replies: 79
Views: 12423

Re: "Welcome on board, this is your king speaking ... "

Eisenhower and both Bushes held licenses but I don't think they were CPL. . Edit: well this site says they do: http://pilothub.blogspot.nl/2007/12/famous-people-with-pilots-licenses.html The Bushes were actually fighter pilots. 41 in WW2 with the Navy, and 43 in Vietnam (Era) with the Texas ANG. I ...

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by oOfredOo
Wed May 17, 2017 6:09 pm
Forum: Civil Aviation
Topic: "Welcome on board, this is your king speaking ... "
Replies: 79
Views: 12423

Re: "Welcome on board, this is your king speaking ... "

http://pilothub.blogspot.nl/2007/12/fam ... enses.html
-->

Eisenhower and both Bushes held licenses but I don't think they were CPL.

Edit: well this site says they do: http://pilothub.blogspot.nl/2007/12/fam ... enses.html

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by oOfredOo
Thu May 04, 2017 7:44 pm
Forum: Civil Aviation
Topic: AMS can't grow because of safety concerns - Dutch safety board
Replies: 82
Views: 15316

Re: AMS can't grow because of safety concerns - Dutch safety board

http://slotcoordination.nl/slot-allocat ... -capacity/
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110 an hour peak. Avarages differ based on time of day and season: http://slotcoordination.nl/slot-allocat ... -capacity/

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by oOfredOo
Thu May 04, 2017 4:31 pm
Forum: Civil Aviation
Topic: AMS can't grow because of safety concerns - Dutch safety board
Replies: 82
Views: 15316

Re: AMS can't grow because of safety concerns - Dutch safety board

As long as rail is taxed and aircraft fuel is tax free, people will take a plane. Plus we only have one dedicated high speed track, which is partly on existing tracks. High speed rail in NL is only quicker because there are less stops. Plan now is to expand Lelystad airport, and move charters from S...

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by oOfredOo
Wed May 03, 2017 10:42 pm
Forum: Civil Aviation
Topic: Updated ITA/Alitalia News and Discussion Thread
Replies: 1647
Views: 388520

Re: Alitalia Files For Bankruptcy

The whole situation reminds me of a story a colleague once told me over a few drinks that while he was working as a consultant stationed at an airline two decades ago, their favourite pastime would be roaming the hallways of other floors of the building looking for offices with only a single occupan...

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by oOfredOo
Wed May 03, 2017 9:49 pm
Forum: Civil Aviation
Topic: AMS can't grow because of safety concerns - Dutch safety board
Replies: 82
Views: 15316

Re: AMS can't grow because of safety concerns - Dutch safety board

The study indicates surface wind data sourced from weather stations. At 2000 ft. there won't be any difference indeed.

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by oOfredOo
Wed May 03, 2017 1:12 pm
Forum: Civil Aviation
Topic: AMS can't grow because of safety concerns - Dutch safety board
Replies: 82
Views: 15316

Re: AMS can't grow because of safety concerns - Dutch safety board

Schiphol is located about 15km inland and winds are dampened by the dunes and the towns of Haarlem and Hoofddorp. During winter storms winds at the shoreline sometimes can reach close to hurricane strength. While that would lead to a total shutdown and significant damage to an airport located in th...

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by oOfredOo
Wed May 03, 2017 6:27 am
Forum: Civil Aviation
Topic: Updated ITA/Alitalia News and Discussion Thread
Replies: 1647
Views: 388520

Re: Alitalia Files For Bankruptcy

So what happens now, does anyone know. Could we see a shutdown soon? If so, do you think AA or UA would add an additional seasonal flight from ORD. How about MIA, JFK, LAX and BOS? AA and DL have some real opportunities to fill a void... but do they have the slack in their fleet? Alitalia is in adm...

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by oOfredOo
Tue May 02, 2017 9:21 pm
Forum: Civil Aviation
Topic: AMS can't grow because of safety concerns - Dutch safety board
Replies: 82
Views: 15316

Re: AMS can't grow because of safety concerns - Dutch safety board

I get the occasional approach over my house. Approaches aren't that loud. A transatlantic widebody taking off at MTOW on a NADP2 profile right above sounds a bit like thunder though. However, I'm not complaining, small price to pay for being able to drive 15 minutes and then fly directly to more tha...

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by oOfredOo
Tue May 02, 2017 6:32 pm
Forum: Civil Aviation
Topic: AMS can't grow because of safety concerns - Dutch safety board
Replies: 82
Views: 15316

Re: AMS can't grow because of safety concerns - Dutch safety board

Come to think of it, 36 times 6 runway designations times ILS/RNAV etc. would be a lot of pages in the box.

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by oOfredOo
Tue May 02, 2017 4:57 pm
Forum: Civil Aviation
Topic: AMS can't grow because of safety concerns - Dutch safety board
Replies: 82
Views: 15316

Re: AMS can't grow because of safety concerns - Dutch safety board

From a pilot's point of view, an airport located in the North Sea is just far too dangerous. The artist impressions shown in the link above proves these guys have no clue what they are talking about. Six parallel runways in the open sea. Sure. This airport would be completely closed due to strong w...

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by oOfredOo
Tue May 02, 2017 7:02 am
Forum: Civil Aviation
Topic: AMS can't grow because of safety concerns - Dutch safety board
Replies: 82
Views: 15316

Re: AMS can't grow because of safety concerns - Dutch safety board

The south sea has been the ijsselmeer since 1932, when the afsluitdijk was ready. It's small, and partly restricted airspace for the military, which makes it even smaller. Prevailing winds in NL are from the west, so landings over the North sea are usually not possible. Taking off into the wind happ...

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by oOfredOo
Tue May 02, 2017 5:28 am
Forum: Technical/Operations
Topic: The A320-200ceo and its Ancient CPU's
Replies: 43
Views: 8710

Re: The A320-200ceo and its Ancient CPU's

http://www.nxp.com/products/microcontro ... 00:MC68000
-->

You can still buy the 68000: http://www.nxp.com/products/microcontro ... 00:MC68000

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by oOfredOo
Mon Apr 17, 2017 6:59 pm
Forum: Civil Aviation
Topic: Will Airbus reduce sub-contracting work to British companies following BREXIT?
Replies: 101
Views: 10618

Re: Will Airbus reduce sub-contracting work to British companies following BREXIT?

The U.K, as well as France, Germany, and many other E.U. Countries already signed a W.T.O. Agreement in the 80's on trade in civil aircraft (and parts) eliminating import duties. Post Brexit I'd say this agreement is still in effect.

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by oOfredOo
Fri Apr 07, 2017 9:36 pm
Forum: Civil Aviation
Topic: AMS can't grow because of safety concerns - Dutch safety board
Replies: 82
Views: 15316

Re: AMS can't grow because of safety concerns - Dutch safety board

If AMS was allowed to handle as much air traffic as they wanted to (using the runway configuration they have now) what would it be? Even though AMS is maxed out at 500,000 aircraft movements per year, I'm sure they could handle much more than 500,000. In conclusion, what is the maximum aircraft mov...

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by oOfredOo
Thu Mar 16, 2017 9:34 pm
Forum: Technical/Operations
Topic: Why does aviation use AM radio instead of superior FM?
Replies: 12
Views: 29618

Re: Why does aviation use AM radio instead of superior FM?

Because a stronger FM signal completely supresses a weaker signal. It's called the capture effect. With AM you just receive both.

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