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by PixelFlight
Tue Aug 20, 2019 4:40 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 2550
Views: 331365

Re: Boeing 737MAX Grounded Worldwide Q3 2019

So let us go through this for the event of the ET crash: [cleaver and very detailed description of ET302 cockpit] :checkmark: :thumbsup: Superb work, many thanks ! Your description show very well the complexity of the situation. This dramatically contrast with some other theories where the pilots o...

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by PixelFlight
Tue Aug 20, 2019 1:11 am
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 2550
Views: 331365

Re: Boeing 737MAX Grounded Worldwide Q3 2019

Since it has been published that the expected reaction time to a runaway stabilizer is 4 seconds, it did not matter that MCAS was intermittent. MCAS activated for ten seconds which is six seconds longer than the expected recognition of a runaway stabilizer. Any MCAS action longer than 4 second is t...

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by PixelFlight
Mon Aug 19, 2019 11:53 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 2550
Views: 331365

Re: Boeing 737MAX Grounded Worldwide Q3 2019

Since it has been published that the expected reaction time to a runaway stabilizer is 4 seconds, it did not matter that MCAS was intermittent. MCAS activated for ten seconds which is six seconds longer than the expected recognition of a runaway stabilizer. Any MCAS action longer than 4 second is t...

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by PixelFlight
Mon Aug 19, 2019 9:12 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 2550
Views: 331365

Re: Boeing 737MAX Grounded Worldwide Q3 2019

PStechPaul wrote:
Just a few quick questions/comments:

1. I have seen reference to a Boeing 738? Is that actually a 737-8?

738 = 737-800 , a 737 NG.
https://en.wikipedia.org/wiki/List_of_aircraft_type_designators
https://www.icao.int/publications/DOC8643/Pages/Search.aspx

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by PixelFlight
Mon Aug 19, 2019 9:01 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 2550
Views: 331365

Re: Boeing 737MAX Grounded Worldwide Q3 2019

Just as Boeing is going to be drastically improving the safety of the 737MAX as a result of the crashes, why can't we also use lessons learned to improve training for the pilots that fly the 737? That way, if there is ever a case of a runaway stabilizer (not caused by MCAS) on a 737 concurrent with...

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by PixelFlight
Mon Aug 19, 2019 4:12 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 2550
Views: 331365

Re: Boeing 737MAX Grounded Worldwide Q3 2019

Airlines are guilty of playing A vs B and going for the cheap, quick and easy solutions and discarding any competition in place for collusion. A and B know this so they will cut corners as well and B far more so and they actually sell it as features not faults . 737 MAX with misfiting engine was th...

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by PixelFlight
Mon Aug 19, 2019 2:45 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 2550
Views: 331365

Re: Boeing 737MAX Grounded Worldwide Q3 2019

Counter point: The WSJ article from last week got a lot of play in this thread last week, and there was no complaints about going over old ground, but that's exactly what it did. The only part that could have said to be different was the way the article's authors worked the four seconds of terror a...

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by PixelFlight
Mon Aug 19, 2019 2:23 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 2550
Views: 331365

Re: Boeing 737MAX Grounded Worldwide Q3 2019

We had two Lion MAXs. One crashed. One survivded the same situation that caused the other to crash. Edit add: What's the difference between the two? Answer: What the fight crew did or did not do. Wny should that not be part of the discussion? How can you say it should not be part of the discussion ...

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by PixelFlight
Mon Aug 19, 2019 2:01 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 2550
Views: 331365

Re: Boeing 737MAX Grounded Worldwide Q3 2019

Fixing MCAS doesn't fix the fact that we have pilots that ignore stick shakers, put flaps up with stick shaker on, continue to destination with stick shaker on, use full throttle to solve problems that are only made worse with full throttle , etc. Is that specific to the 737-8/9 MAX ? No. [logic vs...

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by PixelFlight
Mon Aug 19, 2019 8:47 am
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 2550
Views: 331365

Re: Boeing 737MAX Grounded Worldwide Q3 2019

Fixing MCAS doesn't fix the fact that we have pilots that ignore stick shakers, put flaps up with stick shaker on, continue to destination with stick shaker on, use full throttle to solve problems that are only made worse with full throttle , etc. Is that specific to the 737-8/9 MAX ? No. [logic vs...

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by PixelFlight
Sun Aug 18, 2019 11:35 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 2550
Views: 331365

Re: Boeing 737MAX Grounded Worldwide Q3 2019

My understanding is that: ⋅  The MCAS v0 was designed for high speed turn with 2 sensors (AoA + accelerometer) and trim the stab for 0.6 degree max. ⋅  The MCAS v1 was extended for low speed pitch up with 1 sensor (AoA, no accelerometer because it's not usable at low speed) and ...

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by PixelFlight
Sun Aug 18, 2019 9:11 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 2550
Views: 331365

Re: Boeing 737MAX Grounded Worldwide Q3 2019

The bigger software design issue is that it didn't limit it's own authority based on airspeed (which MCAS 2.0 will do) Well a flight control system Required by regulation To assist the pilots in ensuring the appropiate stick feeling Because this is a must to ensure a safe flight This stick feeling ...

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by PixelFlight
Sun Aug 18, 2019 5:24 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 2550
Views: 331365

Re: Boeing 737MAX Grounded Worldwide Q3 2019

Fixing MCAS doesn't fix the fact that we have pilots that ignore stick shakers, put flaps up with stick shaker on, continue to destination with stick shaker on, use full throttle to solve problems that are only made worse with full throttle , etc. Is that specific to the 737-8/9 MAX ? No. [logic vs...

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by PixelFlight
Sun Aug 18, 2019 11:13 am
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 2550
Views: 331365

Re: Boeing 737MAX Grounded Worldwide Q3 2019

All inputs generated by the AIDRU on both channels are available, and always were available, on the bus as far as I understand it. The fact that STS and MCAS use either or both data sets is purely incidental to the design intent, just requires the code to select the data it requires. Do you have a ...

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by PixelFlight
Sat Aug 17, 2019 6:17 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 2550
Views: 331365

Re: Boeing 737MAX Grounded Worldwide Q3 2019

I think most of us would agree that by the time MCAS 2.0 is fully tested and certified we should be back to the case where the "minimum competency level of an airline pilot" is sufficient. Part of that "minimum competency level of an airline pilot" includes correct reaction to s...

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by PixelFlight
Sat Aug 17, 2019 3:10 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 2550
Views: 331365

Re: Boeing 737MAX Grounded Worldwide Q3 2019

I think most of us would agree that by the time MCAS 2.0 is fully tested and certified we should be back to the case where the "minimum competency level of an airline pilot" is sufficient. Part of that "minimum competency level of an airline pilot" includes correct reaction to s...

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by PixelFlight
Sat Aug 17, 2019 1:15 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 2550
Views: 331365

Re: Boeing 737MAX Grounded Worldwide Q3 2019

1) We are told the 767 tanker has MCAS, not sure why since it has the same engines/nacelles as older 767s The 767 tanker is the Boeing KC-46 Pegasus. It have a MCAS to compensate the fuel displacement due to in air refueling. That KC-46 MCAS is similar to the 737-8/9 MCAS only because both trim the...

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by PixelFlight
Fri Aug 16, 2019 1:46 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 2550
Views: 331365

Re: Boeing 737MAX Grounded Worldwide Q3 2019

I continue to be appalled that there is nothing between an iPod and a $15 million simulator. :checkmark: Exactly. A documentation will never allow the brain to learn a complex situation (multiple alarms, low altitude, fast speed, multiple reading disagree, repetitive erratic nose down trim) that re...

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by PixelFlight
Thu Aug 15, 2019 11:31 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 2550
Views: 331365

Re: Boeing 737MAX Grounded Worldwide Q3 2019

Some actual grounding/ungrounding news/rumours from Bloomberg: FAA Poised to Say Pilots Don’t Need Fresh 737 Max Simulator Training : [...] It seems that there is a steady stream of news that says FAA will not require sim training once the MCAS fix is released. I can't understand how the decision t...

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by PixelFlight
Thu Aug 15, 2019 6:21 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 2550
Views: 331365

Re: Boeing 737MAX Grounded Worldwide Q3 2019

In conclusion, Boeing 100% created the emergency situations that wouldn't have otherwise existed if not for their terrible design logic. However, those situations were not "unrecoverable." This is proven by Lion Air 043 and the fact that the failure chronology was extremely similar betwee...

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by PixelFlight
Wed Aug 14, 2019 5:51 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 2550
Views: 331365

Re: Boeing 737MAX Grounded Worldwide Q3 2019

Boeing says it put more workload on pilots than they could handle. This means there was a disconnect between the level of training Boeing thought the pilots had vs the level they actually had. Airbus also stated the worldwide standard of training is uneven. It is all on topic when we want to discus...

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by PixelFlight
Wed Aug 14, 2019 1:03 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 2550
Views: 331365

Re: Boeing 737MAX Grounded Worldwide Q3 2019

Forbes article has a few pointers to what may be going on and perhaps of interest to those posters interested in continuing maintenance of grounded aircraft. https://www.forbes.com/sites/jeremybogaisky/2019/08/12/boeing-737-max-desert-storage/#2ad50151e619 :checkmark: Thanks, this was a good read f...

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by PixelFlight
Tue Aug 13, 2019 3:59 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 2550
Views: 331365

Re: Boeing 737MAX Grounded Worldwide Q3 2019

Norwegian «discontinues all Trans-Atlantic routes with the 737MAX» according to Norwegian newspaper VG. Impending cancellation of their order? Last Saturday I spotted airstairs attached to two Norwegian's 737-8/9 MAX grounded at the Helsinki Airport, wondering what there have to do with them... htt...

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by PixelFlight
Tue Aug 13, 2019 3:29 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 2550
Views: 331365

Re: Boeing 737MAX Grounded Worldwide Q3 2019

* The 737 Max does not currently hold a Certificate of Airworthiness AFAIK the 737-8/9 MAX only have prohibition / suspended / banned (depending on the country) flight operation. I.e. for USA https://www.faa.gov/news/updates/media/Emergency_Order.pdf I did not remember reading a change regarding th...

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by PixelFlight
Tue Aug 13, 2019 1:33 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 2550
Views: 331365

Re: Boeing 737MAX Grounded Worldwide Q3 2019

* The 737 Max does not currently hold a Certificate of Airworthiness AFAIK the 737-8/9 MAX only have prohibition / suspended / banned (depending on the country) flight operation. I.e. for USA https://www.faa.gov/news/updates/media/Emergency_Order.pdf I did not remember reading a change regarding th...

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by PixelFlight
Fri Jul 26, 2019 4:34 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 2550
Views: 331365

Re: Boeing 737MAX Grounded Worldwide Q3 2019

Don't they ferry them with special pilots only and flaps out to prevent MCAS from activating? Company pilots: yes. Flaps out: There are plenty of flight tracks showing ferry flights at max altitude and speed, I posted one earlier to this thread. So, not a "death trap". Very unlikely that ...

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by PixelFlight
Fri Jul 26, 2019 9:54 am
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 2550
Views: 331365

Re: Boeing 737MAX Grounded Worldwide Q3 2019

The "standard" for measuring "aircraft safety" is total hull losses per one million flights. And while the NG had a very good safety record the MAX did not. Would you play the lottery if you knew it could kill you? Aircraft safety is set by the design and by the quality. Safety ...

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by PixelFlight
Thu Jul 25, 2019 11:08 am
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 2550
Views: 331365

Re: Boeing 737MAX Grounded Worldwide Q3 2019

About https://www.bbc.co.uk/news/business-49108807 I have heard that Boeing may shut down production of the 737 Max after massive losses and this could bring an end to the production of the 737 as a whole Nothing in the article supports the second part of your assertion whatsoever. The article say: ...

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by PixelFlight
Wed Jul 24, 2019 3:33 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 2550
Views: 331365

Re: Boeing 737MAX Grounded Worldwide Q3 2019

. Boeing warns of production reduction, complete shut down of MAX if return to service delayed beyond 4th quarter https://leehamnews.com/2019/07/24/boeing-warns-of-production-reduction-complete-shut-down-of-max-return-to-service-delayed-beyond-4th-quarter/ Reality is kicking in. You can't keep buil...

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by PixelFlight
Tue Jul 23, 2019 10:19 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 2550
Views: 331365

Re: Boeing 737MAX Grounded Worldwide Q3 2019

Munoz said a few months ago that any passenger not willing to fly on a UA MAX would be rebooked (presumably without penalty, but I have to go back and find the article). I'm curious to see whether he will keep his promise, and for how long. there will not be any UA MAX there will be UA 737-8 or -9 ...

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by PixelFlight
Mon Jul 22, 2019 8:18 am
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 2550
Views: 331365

Re: Boeing 737MAX Grounded Worldwide Q3 2019

scbriml wrote:
With the backlog it’s got, there’s no way Boeing can just shrug their shoulders and not get TPFKAM* back in the air.
*The Plane Formerly Known As MAX. :wink2:

In all officials documents this is the 737-8/9

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by PixelFlight
Thu Jul 18, 2019 11:43 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 2550
Views: 331365

Re: Boeing 737MAX Grounded Worldwide Q3 2019

At that time (Mar 12th 2019) Boeing was confident hat it could provide the fixes en close the story quickly. There did not realized that the required actions was not only the fixes the deliveries but to analyse and fix how a such failure could happen in the first place . There did not realized how ...

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by PixelFlight
Thu Jul 18, 2019 3:04 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 2550
Views: 331365

Re: Boeing 737MAX Grounded Worldwide Q3 2019

3. allow the crew to disable automatic trim systems without disabling manual electric trim that sounds tricky.... maybe someone with knowledge of the 737 system design can elaborate how this could be achieved The "STABILIZER TRIM MOTOR" assembly have a single motor but two controller inpu...

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by PixelFlight
Thu Jul 18, 2019 1:02 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 2550
Views: 331365

Re: Boeing 737MAX Grounded Worldwide Q3 2019

There is no separation there. Once you decide how to handle things implementation might be easy (which is a universal statement, btw), but getting to that stage is hard. These are not two levels though. Why do you think Boeing could not come up with a fix for MCAS in almost half a year between Lion...

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by PixelFlight
Wed Jul 17, 2019 10:32 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 2550
Views: 331365

Re: Boeing 737MAX Grounded Worldwide Q3 2019

Without all the drama, it still is just a piece of faulty software. And the process how it was developed and how it was accepted for the MAX, has no influence on the correction of the error. Depend on the level you look at. It's probably true at some implementation level. But the fact that this dra...

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by PixelFlight
Wed Jul 17, 2019 12:23 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 2550
Views: 331365

Re: Boeing 737MAX Grounded Worldwide Q3 2019

A small software issue would be buggy code that is acting in unintended ways, but MCAS is a fundamentally subpar solution to the problem of rushing out a new model but not wanting to spend the money to certificate a new model nor spend the money developing it. It can not just be 'solved' by Boeing'...

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by PixelFlight
Sun Jul 14, 2019 6:46 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 2550
Views: 331365

Re: Boeing 737MAX Grounded Worldwide Q3 2019

LDRA wrote:
How is Boeing going to fix manual trim wheel? Mandate pilot training and physical strength test?

One solution could be to use a separate second electric motor powered from a backup power source (as the A350 do). On the cockpit this only require to find a place for the backup trim switch.

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by PixelFlight
Sun Jul 14, 2019 12:34 am
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 2550
Views: 331365

Re: Boeing 737MAX Grounded Worldwide Q3 2019

I find it rather strange that BOEING has only publicly stated they have set aside 1 billion for this fiasco... it will be in the several billions https://knowherenews.com/event/5eec0ef1-0375-4cb2-b48b-76833c889863 It will probably be in the several billions after adding all the costs no included in...

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by PixelFlight
Sat Jul 13, 2019 1:29 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 2550
Views: 331365

Re: Boeing 737MAX Grounded Worldwide Q3 2019

I like the impartiality of reporting here: "Boeing is the only U.S. maker of jetliners left. There was a time two generations ago when several U.S. companies competed to build commercial transports. Not just Boeing, but Douglas, Lockheed, Martin and others. The end of the Cold War and four dec...

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by PixelFlight
Thu Jul 11, 2019 7:57 am
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 2550
Views: 331365

Re: Boeing 737MAX Grounded Worldwide Q3 2019

planecane wrote:
The investigative reports said that the single sensor was chosen for dispatch reliability.
Really ? Please give a link on that.
I don't see how a software change could have anything to do with the dispatch reliability of two AoA sensors that are already mounted anyway on the previous model.

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by PixelFlight
Thu Jul 11, 2019 6:56 am
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 2550
Views: 331365

Re: Boeing 737MAX Grounded Worldwide Q3 2019

In fact it looks like the only engineering Boeing did was to reverse engineer the certification process starting with how do we get a MAX certified under a 737 type certificate. LOL, but sadly true to some extend. Well, there did a lot of others engineering, but there should not have do that one. I...

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by PixelFlight
Tue Jul 09, 2019 9:23 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 2550
Views: 331365

Re: Boeing 737MAX Grounded Worldwide Q3 2019

It would open the competition to other players as the duopoly had gotten stale. It would more likely push it closer to a monopoly than a triopoly. The ever higher barriers to entry and shrinking technological gains of the mature industry don't lend itself well to the success of a third company. I a...

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by PixelFlight
Tue Jul 09, 2019 9:20 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 2550
Views: 331365

Re: Boeing 737MAX Grounded Worldwide Q3 2019

You wrote in assembly because every clock cycle mattered This, and the fact that writing in "machine code" (assembly) you have pretty much direct control over the clock cycles. ie it is very clear how many clock cycles each instruction will take - knowing this is often more important than...

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by PixelFlight
Tue Jul 09, 2019 6:35 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 2550
Views: 331365

Re: Boeing 737MAX Grounded Worldwide Q3 2019

High SIL systems (such as Flight Control Systems) have rarely been written in C or C++. C has many problematic characteristics (pointers, no strict separation of data and commands, signals, etc). C++ has plenty of ‘determined at runtime’ behaviours (e.g. polymorphism) which make them difficult to s...

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by PixelFlight
Mon Jul 08, 2019 9:17 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 2550
Views: 331365

Re: Boeing 737MAX Grounded Worldwide Q3 2019

I think now would be the time for Airbus to open a design centre near Seattle. I wonder how many Boeing engineers would jump ship. Not sure Airbus would need the extra hands and brains but I'm sure there are some areas of expertise left where they could add value to the company. Airbus and Boeing b...

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by PixelFlight
Mon Jul 08, 2019 1:26 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 2550
Views: 331365

Re: Boeing 737MAX Grounded Worldwide Q3 2019

I and my friends bought 80186s and 68000s around 1988, so that was already aging when the A320 showed up. Using it for the A320NEO is typical grandfathered design and requirements to reduce costs on certification. Airbus had the chance to prove virtue matters more than euros and cents, they chose e...

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by PixelFlight
Mon Jul 08, 2019 10:28 am
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 2550
Views: 331365

Re: Boeing 737MAX Grounded Worldwide Q3 2019

NO. As the article above describes (one of them) this is a very special hardware. It is nothing wrong with using M68XXX or i286 processor even in modern embedded designs, provided that they satisfy all requirements. Please don't compare these to your android phone or windows PC! They may have limit...

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by PixelFlight
Mon Jul 08, 2019 8:07 am
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 2550
Views: 331365

Re: Boeing 737MAX Grounded Worldwide Q3 2019

However, to move to that is what BA should have done. You don’t upgrade; you build a new plane. It was AB until now, but ABC is expected soon and C have full IMA (CCS+ADFX+FBW) for it C919. https://leehamnews.com/2018/01/03/united-aircraft-comac-goes-flying/ Why are we even talking about this? It i...

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by PixelFlight
Mon Jul 08, 2019 1:01 am
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 2550
Views: 331365

Re: Boeing 737MAX Grounded Worldwide Q3 2019

Also found this document about the Am2900 familly: https://en.wikichip.org/w/images/c/c4/The_Am2900_Family_Data_Book_With_Related_Support_Circuits_%281979%29.pdf I will not be surprised that the SDP-175/185 is based on a typical 16-bits micocomputer design like the one on the page 265 This is pre-1...

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by PixelFlight
Sun Jul 07, 2019 10:54 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q3 2019
Replies: 2550
Views: 331365

Re: Boeing 737MAX Grounded Worldwide Q3 2019

Also found this document about the Am2900 familly: https://en.wikichip.org/w/images/c/c4/The_Am2900_Family_Data_Book_With_Related_Support_Circuits_%281979%29.pdf I will not be surprised that the SDP-175/185 is based on a typical 16-bits micocomputer design like the one on the page 265 This is pre-19...

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