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Re:Boeing has temporarily stopped making 737 Max airplanes by BitwiseFool on Tuesday January 21, 2020 @11:29AM (#22108367)
According to the article Boeing has halted production, but this leaves the door open to producing them again in the future after design updates. I predict they'll try to rename the model and fly it again after making changes and certifying.

That being said, I never want to fly on a 737 Max or whatever they plan to rebrand it as.

Re:Boeing has temporarily stopped making 737 Max airplanes by missosoup on Tuesday January 21, 2020 @03:25PM (#22111126)
> That being said, I never want to fly on a 737 Max or whatever they plan to rebrand it as.

Yeah you will. Good luck selectively avoiding the most popular international route plane. Historically, people have been very quick to forget mishaps with particular airframes and revert to flying the most convenient/economical routes.

And by the time it's flying again, it will be hands down the safest plane that's being operated because every minute detail of it will have been checked with far more scrutiny than any other newly launched platform.

Re:Boeing has temporarily stopped making 737 Max airplanes by JaRail on Tuesday January 21, 2020 @04:12PM (#22111624)
You can check it all you want. That won't change the physics of its dynamically unstable design.
Re:Boeing has temporarily stopped making 737 Max airplanes by kayfox on Tuesday January 21, 2020 @04:49PM (#22112028)
Its a stable design.

The force MCAS is correcting is a lightening of control forces near a stall. This is not allowed per FARs, so they added MCAS to force some extra force.

It will fly just fine with the computers turned off.

Re:Boeing has temporarily stopped making 737 Max airplanes by missosoup on Tuesday January 21, 2020 @04:46PM (#22111994)
The max 8 doesn't have an inherently unstable design. This meme now only lives in the minds of the most ignorant out-of-the-loop individuals who wilfully consume FUD and ignore expert evidence.

If the airframe is truly unsafe, then it'll never fly again. But everyone knows it will. Because it isn't.

The only thing that'll happen is the max 8 will probably require a new type rating which will hurt airline economy a bit. Other than that, you'll be flying in it a year from now and have forgotten all about this.

Re:Boeing has temporarily stopped making 737 Max airplanes by jacquesm on Tuesday January 21, 2020 @05:26PM (#22112362)
It's a stable design. Barely so in some edge cases, but it is stable across the whole flight envelope.
Re:Boeing has temporarily stopped making 737 Max airplanes by cameldrv on Tuesday January 21, 2020 @04:09PM (#22111589)
The 737NG is out of production, and Airbus currently has something like a 5 year backlog of A320 orders. The only other direct competitor is the Comac C919. Boeing has already made about 1000 737MAXes. The 737MAX is going to be a significant part of the global airline fleet whether you like it or not. There will be many routes where the 737MAX is the only aircraft flying that route.

I think it's fairly unlikely that there's some other massively dangerous failure mode of the 737MAX, because the fleet has flown enough hours, and the only crashes have been the result of the MCAS. When that's fixed, it's quite possible that there are other gremlins that cause crashes, but they probably will be much less severe/likely than the MCAS problem.

Re:Boeing has temporarily stopped making 737 Max airplanes by phkahler on Tuesday January 21, 2020 @04:34PM (#22111872)
MCAS is not the fundamental problem. The new CEO has said they may require training for this 737 variant after all. Given a failure to simply drop MCAS, do extra pilot training and move on, we can conclude the plane isn't safe without additional computer control - of the quality MCAS was not. I hope I'm wrong about that, but the longer it drags on the more it looks like that may be the case.
Re:Boeing has temporarily stopped making 737 Max airplanes by cameldrv on Tuesday January 21, 2020 @05:58PM (#22112679)
I'm not directly involved, but my understanding is that to some degree the entire computer system is now involved. The problem is that the design philosophy of the instruments and computers on the 737 is the idea of having two "sides" to many sensors and instruments, a left and right. If the captain's airspeed readout differs from the FO's readout, the pilots are supposed to decide which one to trust.

Crucially, in order for this concept to work, the two sides are supposed to be totally independent -- the computers are different, the displays are different, and the sensors are different. However, at any one time, only one FCC is active, in that it is actually controlling the plane. Comparing the two sides AoA now violates this assumption and so many of the other engineering and certification assumptions may be violated since now the two FCCs are sharing AoA inputs.

Furthermore, my understanding is that now that everything is being looked at more closely, the FAA is having a change of heart about the idea of having one FCC active at a time being acceptable. If there is a hardware fault in the FCC, it has a lot of authority to cause problems, possibly faster than the crew can resolve them. My understanding is that now the FAA wants the FCCs to cross-check each other. Making this happen will require a lot of engineering and testing, and I think that this is the big reason for the delay. The MCAS fix itself was flight tested way back in April and May of last year.

All of that said, I don't believe an FCC fault has ever been implicated in an accident, so this IMO doesn't really present a safety issue big enough to be relevant to say, my decision of whether to fly on a 737MAX, but it looks like the FAA is deeming it not adequate for certification.

Airbus of course uses a different philosophy and uses multiple FCCs that continuously compare their output and vote.

Re:Boeing has temporarily stopped making 737 Max airplanes by ohnope on Tuesday January 21, 2020 @07:15PM (#22113242)
Thank you for elaborating on the deeper issues surrounding MCAS. Where can I read more about Boeing's design philosophy around FCC redundancy, or more about Boeing vs Airbus philosophies?
Re:Boeing has temporarily stopped making 737 Max airplanes by cameldrv on Tuesday January 21, 2020 @09:54PM (#22114148)
For intense technical detail I recommend the satcom.guru blog.
Re:Boeing has temporarily stopped making 737 Max airplanes by dingaling on Wednesday January 22, 2020 @03:53PM (#22121911)
> The 737NG is out of production

No they're still rolling off the line for the military Poseidon and Wedgetail programs

Re:Boeing has temporarily stopped making 737 Max airplanes by heavymark on Tuesday January 21, 2020 @11:35AM (#22108437)
Yes, I imagine the rebranding will be as ineffective as Comcast rebranding as Xfinity, where everyone knows they are the same.
Re:Boeing has temporarily stopped making 737 Max airplanes by codegeek on Tuesday January 21, 2020 @12:42PM (#22109224)
Yea it is hilarious how Comcast thinks rebranding to xfinity etc is going to help. To be fair to them, the internet service mostly has been excellent where I live. The issue is the predatory pricing/cost and ever decreasing TV channels for existing customers.
Re:Boeing has temporarily stopped making 737 Max airplanes by wayoutthere on Tuesday January 21, 2020 @01:31PM (#22109865)
Having worked there during the rebranding, a big part of it was more to drive clarity around the business units (think Alphabet vs Google, only in reverse). "Comcast" refers to the overall holding company over the cable business, media business and stadium / real estate holdings.

They referred to the cable business as "Comcast Cable" for a while before rebranding it to Xfinity. The public rebranding was definitely intentional, but it wasn't the only reason behind it.

Re:Boeing has temporarily stopped making 737 Max airplanes by linsomniac on Tuesday January 21, 2020 @12:46PM (#22109299)
I don't know what you're talking about, Comcast has had amazing support the last few months in my area. We even had a rep come to our house, and leave a handwritten note on the door when we didn't answer, asking if we had any questions or concerns and to give them a call if there was anything they could do for us.

... I'm sure this has nothing to do with the city fiber to the home buildout that is going on in our neighborhood... ;-)

Re:Boeing has temporarily stopped making 737 Max airplanes by Treblemaker on Tuesday January 21, 2020 @02:17PM (#22110368)
I just got comcast installed in a new home, and the experience was completely different from what I've experienced in the past -- think "apple store", rather than "we're the phone company; we don't have to care". The customer service rep that helped me said they just finished six months of training, and even they were surprised that the system "just worked" when I went in to pick up the gear (my choice to pick it up two hours after calling them rather than waiting for delivery). I won't go into detail about all the other things that "went right" to avoid sounding like a marketing bird, but from what I heard it is a corporate initiative and not just for the fiber buildout.
Re:Boeing has temporarily stopped making 737 Max airplanes by techsupporter on Tuesday January 21, 2020 @05:16PM (#22112269)
My kid recently moved apartments from one served only by Comcast to one not served by Comcast. He filed the cancel request online and took his cable modem to a Comcast office in a nearby mall. The cancel process took about six minutes total; nobody called to beg for him to stay or stall him on the phone for over an hour.

My view is that the indication is how a company treats you when you leave versus when you arrive and, at least this once, Comcast did well on both.

Re:Boeing has temporarily stopped making 737 Max airplanes by briffle on Tuesday January 21, 2020 @01:38PM (#22109940)
My Comcast connection is rock solid. Except when it rains. And I live in Oregon.
Re:Boeing has temporarily stopped making 737 Max airplanes by linsomniac on Tuesday January 21, 2020 @03:14PM (#22111011)
FYI: I had that problem a decade ago, and the problem ended up being a nick in the coax sheathing on the run from the house to the neighborhood box. Water would get in and ruin the signal, but it was fine when it was dry.
Re:Boeing has temporarily stopped making 737 Max airplanes by smolder on Tuesday January 21, 2020 @04:41PM (#22111934)
It took 4 of Comcasts contractor technician visits to my house to fix a bad coax running to the building. The first tech identified the problem and said another would come to fix it, and no one did. The next two were completely useless beyond checking that the modem connected, and wasting my time.

Aside from that my 300Mbps service frequently tops out at 30Mbps, seemingly whenever I want to download something large. The upstream bandwidth they offer is also abysmal.

Re:Boeing has temporarily stopped making 737 Max airplanes by tyingq on Tuesday January 21, 2020 @11:43AM (#22108530)
Their stock price certainly has a much better slope post rebrand. Though I don't know all the factors.
Re:Boeing has temporarily stopped making 737 Max airplanes by benhurmarcel on Tuesday January 21, 2020 @02:02PM (#22110179)
It doesn't matter that everyone knows they're the same, rebranding often works.
Re:Boeing has temporarily stopped making 737 Max airplanes by Retric on Tuesday January 21, 2020 @02:24PM (#22110457)
Rebranding works when it’s paired with significant changes.

Without that people tend to keep using the old name for a long time. People still call the Willis tower the sears tower and that change happened 11 years ago.

Re:Boeing has temporarily stopped making 737 Max airplanes by jsight on Tuesday January 21, 2020 @03:31PM (#22111186)
As much as I dislike Comcat/Xfinity, I don't think they are hurting at all.
Re:Boeing has temporarily stopped making 737 Max airplanes by thereare5lights on Tuesday January 21, 2020 @03:28PM (#22111158)
I've never understood the comcast hate. I've been using Xfinity for years and it's been very reliable and fast. My only gripe is the price.
Re:Boeing has temporarily stopped making 737 Max airplanes by breischl on Tuesday January 21, 2020 @03:36PM (#22111237)
It's not so much the service itself as the crappy customer support, shady billing processes (eg, accidentally overcharging on a regular basis...) and things like that.
Re:Boeing has temporarily stopped making 737 Max airplanes by jaywalk on Tuesday January 21, 2020 @03:33PM (#22111203)
Comcast used to do some pretty bad stuff, but they've definitely cleaned up their act. I've been a customer for 10+ years, and have had zero significant issues with my service.
Re:Boeing has temporarily stopped making 737 Max airplanes by mabey on Tuesday January 21, 2020 @03:46PM (#22111353)
they enforce data caps on home internet
Re:Boeing has temporarily stopped making 737 Max airplanes by Brave-Steak on Tuesday January 21, 2020 @11:46AM (#22108563)
I'd assume this is only temporary. How many orders for the Max do they still have unfulfilled? That'd be a significant loss if they intended to not fill them sometime in the future.

Edit: It says in the article

> The assembly line in Renton, Washington, has stopped building Boeing's bestselling plane, the company confirmed late Monday. Boeing announced plans to temporarily halt production for an undetermined period in December, but it had not previously announced a precise day for the shutdown.

Re:Boeing has temporarily stopped making 737 Max airplanes by stopads on Tuesday January 21, 2020 @12:08PM (#22108806)
I'm almost there, after reading about how much Boeing has spent on stock buybacks (5x all of R&D over the past six years) I think I'm going to start looking into which model typically services a route and avoid all modern Boeing planes.

Boeing made a lot of executives super rich with buybacks and equity compensation, this led directly to the shoddy engineering choices.

Re:Boeing has temporarily stopped making 737 Max airplanes by rapsey on Tuesday January 21, 2020 @12:38PM (#22109187)
Just like every other major public company. If that is your criteria you will be left with little to buy.
Re:Boeing has temporarily stopped making 737 Max airplanes by stopads on Tuesday January 21, 2020 @12:42PM (#22109222)
No, the current buyback madness (at least at these levels) is a very recent invention of the past decade and quite abnormal. We can go back to reinvesting in companies and employees and research tomorrow if we want to.

But this would require boards and executives who didn't want to just grant themselves huge amounts of equity while buying back stock. So far not many boards are standing up for this.

Re:Boeing has temporarily stopped making 737 Max airplanes by rapsey on Tuesday January 21, 2020 @01:02PM (#22109492)
Yeah recent like you said for boening last six years. They are doing what everyone else is doing so it is pretty strange to single them out on this issue.
Re:Boeing has temporarily stopped making 737 Max airplanes by stopads on Tuesday January 21, 2020 @01:06PM (#22109537)
I've complained about many companies that are devoting even more resources to buybacks on this very forum, including Chevron, Texas Instruments, Google and Oracle. Google in particular has been the trendsetter, everyone else is trying to keep up with their buybacks.

This news story is about Boeing, so yes I'm going to talk about Boeing here.

Do you work in defense or aerospace? You seem to be taking this personally for some reason.

Re:Boeing has temporarily stopped making 737 Max airplanes by rapsey on Tuesday January 21, 2020 @01:11PM (#22109602)
Nope and neither am I taking it personally
Re:Boeing has temporarily stopped making 737 Max airplanes by pdonis on Tuesday January 21, 2020 @01:01PM (#22109476)
> avoid all modern Boeing planes

First, if you think Airbus is any better, you should think again.

Second, what do you mean by "all modern Boeing planes"? If you just mean "planes designed after the merger with McDonnell Douglas", that's just the 787 and the 737 Max. The latter is grounded and the former only flies select long haul routes. For the average US business traveler they're a non-issue.

Re:Boeing has temporarily stopped making 737 Max airplanes by IfOnlyYouKnew on Tuesday January 21, 2020 @03:33PM (#22111204)
They don't "leave the door open" to restarting production. It's the official plan to do so.
Re:Boeing has temporarily stopped making 737 Max airplanes by fred_is_fred on Tuesday January 21, 2020 @02:28PM (#22110526)
They could rebrand it as the 737 Cargo since I think a lot of potential passengers feel just like you.
Re:Boeing has temporarily stopped making 737 Max airplanes by asah on Tuesday January 21, 2020 @11:47AM (#22108569)
that's fine - but 99% of everybody else will fly a 737 Max for $x less and after 1-3 months of no reported incidents.
Re:Boeing has temporarily stopped making 737 Max airplanes by hatchnyc on Tuesday January 21, 2020 @01:50PM (#22110045)
How many people even check what kind of equipment they are flying on before booking a ticket? I know a lot of people who are not even vaguely aware which manufacturer the plane they are flying on was made by.
Re:Boeing has temporarily stopped making 737 Max airplanes by kawfey on Tuesday January 21, 2020 @02:46PM (#22110748)
I'm willing to bet airliners are going to remove any indication of what aircraft submodel is planned for the flight prior to ticketing, if not aggressively debating that move.
Re:Boeing has temporarily stopped making 737 Max airplanes by toomuchtodo on Tuesday January 21, 2020 @02:56PM (#22110831)
Great opportunity for a "SkySafe" app; filter out known flight/tail numbers based on the equipment (with data from public FAA feed). Can't lie about your equipment in flight plans to the FAA.
Re:Boeing has temporarily stopped making 737 Max airplanes by nnd on Tuesday January 21, 2020 @07:45PM (#22113432)
What metrics would you consider when it comes to aircraft safety?
Re:Boeing has temporarily stopped making 737 Max airplanes by toomuchtodo on Tuesday January 21, 2020 @08:18PM (#22113616)
Flying on airframes that have been sufficiently validated by regulatory bodies and have a history of not killing passengers.
Re:Boeing has temporarily stopped making 737 Max airplanes by blaser-waffle on Wednesday January 22, 2020 @10:15AM (#22118185)
Plenty of aircraft have a history of crashing. There need to be more metrics, like recent crash history, maintenance routines, even things like financial performance.

Even the best airframe will go down if poorly maintained or their pilots aren't experienced and properly rotated.

Re:Boeing has temporarily stopped making 737 Max airplanes by ohiovr on Tuesday January 21, 2020 @04:47PM (#22112005)
Safety is a good brand differentiator.
Re:Boeing has temporarily stopped making 737 Max airplanes by ttcbj on Tuesday January 21, 2020 @03:27PM (#22111149)
I agree that I don't want to fly them. The DC-10 had a similarly bad safety record:

https://en.wikipedia.org/wiki/McDonnell_Douglas_DC-10#Cargo_...

It seems to have continued on for several years, though ultimate its poor safety record seems to have been a factor in its discontinuation.

Re:Boeing has temporarily stopped making 737 Max airplanes by freepor on Tuesday January 21, 2020 @12:06PM (#22108778)
I think you’re underestimating how much fear people have of flying. If there’s a plane that is considered “dangerous” then people are going to avoid it. It’s not like airlines losing your luggage which people just put up with.
Re:Boeing has temporarily stopped making 737 Max airplanes by l33tman on Tuesday January 21, 2020 @12:13PM (#22108872)
I have many friends who fly a lot more than me, and I've never heard any of them mention the type of airplane as an issue. Most of them don't know the exact model or even brand of "that plane that was grounded"..

I guess people in general rely on the government agencies to do this decision for us..

Re:Boeing has temporarily stopped making 737 Max airplanes by ghaff on Tuesday January 21, 2020 @12:24PM (#22109009)
I don’t think I’ve ever made a flight decision based on the safety of a particular airline type. I prefer certain types for long hauls as well as caring about seat configuration and schedule/price. But I figure getting back and forth to the airport is more dangerous.
Re:Boeing has temporarily stopped making 737 Max airplanes by sidr on Tuesday January 21, 2020 @03:04PM (#22110921)
> I don’t think I’ve ever made a flight decision based on the safety of a particular airline type.

Neither had I, until I took a Tupolev jet between Moscow and India. I then decided I would never fly another aircraft that wasn't certified to fly in American and European airspaces. The reason for this was that I had trust in the FAA's and European aviation authory's standards and integrity. That trust has been greatly eroded (particularly with the FAA) for me.

Re:Boeing has temporarily stopped making 737 Max airplanes by ohashi on Tuesday January 21, 2020 @12:48PM (#22109316)
I've definitely looked up plane models, I've looked at airline records. Just this month I re-booked to asia via South Korea instead of Qatar because my flight went over Iran or near the border on the flight maps and the assassination was <24 hours old. I ended up in a middle seat trans pacific instead, but I don't regret that decision in hindsight at all.
Re:Boeing has temporarily stopped making 737 Max airplanes by mopsi on Tuesday January 21, 2020 @02:08PM (#22110280)
Most people I know look up the aircraft type on sites like SeatGuru to choose the best seats, or at least to avoid the worst. They also have a preference in aircraft, e.g. couples prefer 2+2 seating over 3+3, or jet over turboprop.
Re:Boeing has temporarily stopped making 737 Max airplanes by ta999999171 on Tuesday January 21, 2020 @10:45PM (#22114410)
They probably don't know the scanners radiate you, as well as the sun.

Having money/status to travel doesn't == intelligence, unfortunately.

Re:Boeing has temporarily stopped making 737 Max airplanes by DougN7 on Tuesday January 21, 2020 @12:12PM (#22108849)
I’m the opposite. I figure the safest time to fly is when all the problems are foremost in everyone’s mind. Not worried/haven’t checked if I’m flying one today.
Re:Boeing has temporarily stopped making 737 Max airplanes by xiphias2 on Tuesday January 21, 2020 @11:50AM (#22108616)
Aftee a few years I may fly them again, I just need to wait until the statistics are conviencing enough.
Re:Boeing has temporarily stopped making 737 Max airplanes by Gibbon1 on Tuesday January 21, 2020 @03:04PM (#22110922)
50/50 prediction. Existing 737 Max aircraft will never fly passenger service again.
Re:Boeing has temporarily stopped making 737 Max airplanes by nodesocket on Tuesday January 21, 2020 @02:06PM (#22110229)
Agree the title should be changed as it’s misleading. CNBC reporting June or July[1].

[1] https://www.cnbc.com/2020/01/21/boeing-doesnt-expect-regulat...

Re:Boeing has temporarily stopped making 737 Max airplanes by at-fates-hands on Tuesday January 21, 2020 @12:21PM (#22108977)
> That being said, I never want to fly on a 737 Max or whatever they plan to rebrand it as.

Self admittedly, I don't fly as frequently as I used to, but do they still put the model of plane you're flying on anywhere on the ticket?

How can someone go about making sure you're not flying on this specific model?

Re:Boeing has temporarily stopped making 737 Max airplanes by eropple on Tuesday January 21, 2020 @12:31PM (#22109091)
Just look on FlightAware or similar. They've all got the historical record for a given route (though of course it's possible an airline might substitute after you've bought the ticket, it's unlikely; most flights fit a specific profile and most airlines have only a couple of models to fit that profile).

The major users from North American airlines are Southwest (34 planes), Air Canada (24), American (24), United (14), and Aeromexico (6), so it's not super common here at least.

Re:Boeing has temporarily stopped making 737 Max airplanes by paulmd on Tuesday January 21, 2020 @12:57PM (#22109430)
I strongly doubt the overwhelming majority of consumers are going to cross reference booking details against an external site to avoid a specific plane unless there are planes falling out of the air on a daily basis. People may say they will, but in practice they'll look up the cheapest flight and book that, as usual.
Re:Boeing has temporarily stopped making 737 Max airplanes by nickserv on Tuesday January 21, 2020 @01:43PM (#22109986)
Depends on how prominently the information is displayed, and the price difference.

If I can see the plane type in the list of available flights, and the difference is $15 on a $250 ticket I would choose the non Max flight, all else being equal.

Re:Boeing has temporarily stopped making 737 Max airplanes by paulmd on Tuesday January 21, 2020 @04:47PM (#22112003)
Fair, and someone mentioned that Kayak does display that, but I think you will probably have to move to a different airline to get a different aircraft type (airlines use one common type for most flights on a given route) and the price differences are often steep and/or there are other sacrifices to be made (frequent flyer miles, more expensive bag checkins, etc).
Re:Boeing has temporarily stopped making 737 Max airplanes by eropple on Tuesday January 21, 2020 @03:36PM (#22111228)
I don't disagree at all. The information's there, though.
Re:Boeing has temporarily stopped making 737 Max airplanes by jlmorton on Tuesday January 21, 2020 @12:44PM (#22109257)
Aircraft type is even a filter option on some travel sites, like Kayak.
Re:Boeing has temporarily stopped making 737 Max airplanes by npo9 on Tuesday January 21, 2020 @12:33PM (#22109127)
It’s listed on several UIs for purchasing tickets, but usually it takes several clicks to identify the model of airplane.
Re:Boeing has temporarily stopped making 737 Max airplanes by pdonis on Tuesday January 21, 2020 @01:02PM (#22109489)
During the reservation process you should be able to see the equipment type (that's airline-speak for "model of plane").
Re:Boeing has temporarily stopped making 737 Max airplanes by elygre on Tuesday January 21, 2020 @01:32PM (#22109874)
It might turn out to be a competitive advantage for the booking site, who might then highlight "not a max" in the process.
Re:Boeing has temporarily stopped making 737 Max airplanes by linsomniac on Tuesday January 21, 2020 @12:43PM (#22109246)
I've heard that the "Max" name doesn't appear on FAA filings and the like, they use the name "737-8". I'm guessing that they'll be switching to using that name once the issues are ironed out.
Re:Boeing has temporarily stopped making 737 Max airplanes by yeezul on Tuesday January 21, 2020 @01:29PM (#22109844)
I hope not. That's going to be confusing with the 737-800 model.
Re:Boeing has temporarily stopped making 737 Max airplanes by m463 on Tuesday January 21, 2020 @05:32PM (#22112436)
Diebold -> Premier Election Solutions

Blackwater -> Xe -> Academi

737 Max -> ?

Re:Boeing has temporarily stopped making 737 Max airplanes by ohnope on Tuesday January 21, 2020 @07:00PM (#22113147)
737 Max -> 737 TruFlight® OneSky™
Re:Boeing has temporarily stopped making 737 Max airplanes by stanferder on Tuesday January 21, 2020 @12:36PM (#22109150)
I've completely stopped buying tickets on airlines that own or ordered 737 MAX's, so I don't even have to check if they've been un-grounded.
Re:Boeing has temporarily stopped making 737 Max airplanes by madengr on Tuesday January 21, 2020 @12:46PM (#22109289)
This will probably be the safest plane to fly on, considering the amount of scrutiny the FAA is now applying.
Re:Boeing has temporarily stopped making 737 Max airplanes by mrtksn on Tuesday January 21, 2020 @12:51PM (#22109356)
Would restarting Chernobyl make it the safest NPP considering the amount of scrutiny that it would be put through?

Maybe we should look into re-introducing Windows Vista, considering the scrutiny that it would require it must be the safest and most stable OS ever.

Re:Boeing has temporarily stopped making 737 Max airplanes by coolspot on Tuesday January 21, 2020 @01:46PM (#22110021)
Fun fact:

> Most of the flaws in the design of RBMK-1000 reactors were corrected after the Chernobyl accident and a dozen reactors have since been operating without any serious incidents for over twenty years. [99]

Including 3 remaining reactors of Chernobyl Power Plant itself.

[99] - https://en.wikipedia.org/wiki/RBMK

Re:Boeing has temporarily stopped making 737 Max airplanes by TJSomething on Tuesday January 21, 2020 @01:15PM (#22109659)
But Windows 7 was just Windows Vista with some relatively minor changes and it was fine.

The problem with the 737 MAX is that Boeing tried to make a plane with a completely different airframe and added a bunch of software to try to make it fly exactly like second generation 737s so that pilots didn't need to retrain. But the abstraction was leaky and it turns out that when you have a different airframe, you have to retrain your pilots.

That said, Boeing did some janky stuff to get this nonsense certified by the FAA and the whole design probably needs to be recertified, which will take years.

Re:Boeing has temporarily stopped making 737 Max airplanes by jaywalk on Tuesday January 21, 2020 @03:40PM (#22111275)
> The problem with the 737 MAX is that Boeing tried to make a plane with a completely different airframe

You've got it backwards. The problem was that they used the same airframe with larger engines that had to be mounted differently due to ground clearance issues.

Re:Boeing has temporarily stopped making 737 Max airplanes by mrtksn on Tuesday January 21, 2020 @01:25PM (#22109779)
Windows Me was probably a better example but not everyone will remember it.

Anyhow, the point is that scrutinizing a bad architecture doesn't make it any better. Scrutinizing a chicken won't make it an eagle.

Re:Boeing has temporarily stopped making 737 Max airplanes by mumblemumble on Tuesday January 21, 2020 @01:43PM (#22109993)
I worked at a help desk when Windows ME came out. As I recall, the most salient difference I found between it and XP was that they removed a bunch of tools that I had come to rely on for diagnosis, troubleshooting, and just generally understanding what was going on under the hood. I guess it was ostensibly better, but I never did feel as comfortable working with an ME box.

With that in mind, yeah, Windows ME sounds like a pretty great analogy.

Re:Boeing has temporarily stopped making 737 Max airplanes by edifus on Tuesday January 21, 2020 @02:06PM (#22110232)
But ME came out before Windows XP..
Re:Boeing has temporarily stopped making 737 Max airplanes by mumblemumble on Thursday January 23, 2020 @08:54AM (#22127507)
Yeah, brain fart. I was thinking 98.
Re:Boeing has temporarily stopped making 737 Max airplanes by madengr on Tuesday January 21, 2020 @01:24PM (#22109771)
No, that reactor had an inherent instability that could not be fixed.

The MCAS has an issue with redundant AOA sensors; that specifically needs to be fixed. The MCAS caused problems on other flights, but the pilots knew to disable it by flipping the circuit breaker. The pilots on the crashed planes did not know to disable it. That is a training issue.

Fix the redundant AOA and provide training to disable the MCAS, and it will be fine.

Re:Boeing has temporarily stopped making 737 Max airplanes by ajross on Tuesday January 21, 2020 @04:00PM (#22111502)
The positive void coefficient problem[1] was intractable (without putting the whole reactor vessel inside a pressurized tank), but it was the combination of that and the control rod design that caused the explosion. The control rods were modified trivially. The reactor is basically safe, though you wouldn't repeat the design choices.

[1] An IMHO stupidly obfuscated way of saying that the cooling water around the reactor was an unpressurized pool that would boil if it got hot. Low-density bubbles of steam absorb fewer neutrons than liquid water, so when it boils the core gets hotter, not cooler.

Re:Boeing has temporarily stopped making 737 Max airplanes by coolspot on Tuesday January 21, 2020 @01:44PM (#22110000)
> No, that reactor had an inherent instability that could not be fixed.

There are many exactly same reactors as was in Chernobyl fixed and running still:

> Most of the flaws in the design of RBMK-1000 reactors were corrected after the Chernobyl accident and a dozen reactors have since been operating without any serious incidents for over twenty years.

Even Chernobyl itself had 3 remaining reactors working for many years after the disaster, last decommissioned in 2000.

Re:Boeing has temporarily stopped making 737 Max airplanes by mrtksn on Tuesday January 21, 2020 @01:27PM (#22109817)
>No, that reactor had an inherent instability that could not be fixed.

Interesting maybe could have been fixed with software. I am thinking of Reactor Characteristics Augmentation System, or RCAS.

Also, Chernobyl exploded because they pressed the halt button at a very bad time. This also sounds like something that can be fixed in software.

Re:Boeing has temporarily stopped making 737 Max airplanes by s1artibartfast on Tuesday January 21, 2020 @01:51PM (#22110053)
Little known fact: Chernobyl was still a functional power plant after the meltdown and the remaining 3 reactors in the building were operated until 91, 96, and 2000.

Ten plants of same design are still operational today.

Re:Boeing has temporarily stopped making 737 Max airplanes by hhas01 on Tuesday January 21, 2020 @02:42PM (#22110699)
MAX is Defective by Design. Leave the aerodynamically unstable designs for the hotshot fighter planes; everyone else just wants to get from A to B without cratering into the ground inbetween.
Re:Boeing has temporarily stopped making 737 Max airplanes by kawfey on Tuesday January 21, 2020 @02:55PM (#22110816)
It's not aerodynamically unstable. It's aerodynamically different than the 737-800 but Boeing decided instead of new pilot training and possibly re-certification, they would address the difference in it's flight characteristics by automatically adjusting the elevator trim when the aircraft is in a specific off-nominal situation such that the 737 MAX 8 feels and behaves just like the 737-800 (MCAS). That's not a bad engineering design decision IMO, but the follow-on decisions (or mistakes) made by Boeing (one AoA truth source instead of two, no extra training, zero indications, basically don't tell anyone about it) is the problem. Once those problems are fixed, no 737 MAX 8 will ever fail due to MCAS again. In fact it's going to be one of the - if not the - most scrutinized (and thereby safer) aircraft ever made.
Re:Boeing has temporarily stopped making 737 Max airplanes by hhas01 on Tuesday January 21, 2020 @03:47PM (#22111378)
I exaggerate slightly for [black] humor, but the point is hanging those huge engines so far forward puts its center of thrust uncomfortably ahead of its center of gravity, making it naturally want to pitch nose-up in flight.

All the rest—dodgy sensors, crappy software kludge, no pilot retraining—is hacks laid on top of that initial flaw just to pretend it isn’t there. A lot of us here build complex systems for a living; if that isn’t a “smell”, what is?

(Aerodynamically unstable design is a thing, btw, e.g. Typhoon. But that’s Military, which can afford fly-by-wire software that works.)

A stable design might’ve lifted the airframe further from the ground to give those huge engines the clearance they need under the wing, keeping them to the COG and thus ensuring the plane continues to fly naturally level as per its original design. (Any air geeks want to check me on that?)

But obviously that would’ve cost more, and now Boeing’s run by short-term profit chasers, not adult engineers, the attitude is “What can we get away with?”, not “What do we need to build?” That alone’s reason not to trust their bloody product any more. Not least cos what else might they be tempted to cut corners on?

I mean, a shitty iPhone will screw up your day; a shitty Boeing will screw up the rest of your life.

This is why Corporate Manslaughter laws should include hanging the Board by its heels.

Re:Boeing has temporarily stopped making 737 Max airplanes by wang_li on Tuesday January 21, 2020 @02:57PM (#22110842)
Is it unstable? I thought the problem was that they didn't want to require retraining so they built in a flight control system that made it seem like the previous generation plane from a flight dynamics pov. That system would only take inputs from a single sensor on any given flight. If that sensor had issues then the flight control system would misbehave. If they had gone the retraining route and not included MCAS, then the plane would be fine. At least that was my understanding.
Re:Boeing has temporarily stopped making 737 Max airplanes by hhas01 on Tuesday January 21, 2020 @04:07PM (#22111577)
I suspect they’d need to teach those pilots to add a lot of trim. Putting those big engines well ahead of the CoG makes them throw its nose up; it’s basic Newtonian levers.

Not that any plane flies perfectly level at all speeds, which is why they need trim in the first place. But presumably there’s a “sweet spot” which the original 737 was designed to nail in normal flight, which subsequent revisions have moved further and further away from.

At some point you really need an adult in the room to stand up and declare “no more”. But by accounts McDonnell-Douglas already showed all the grown-ups the door. That’s the nice thing about responsibility: just disseminate it enough, and no-one’s to blame.

Re:Boeing has temporarily stopped making 737 Max airplanes by Gibbon1 on Tuesday January 21, 2020 @03:19PM (#22111066)
I think most aircraft are unstable or have quirks outside their approved flight envelope. For passenger aircraft you want it to be docile and predictable inside that. The MAX far as I've gleaned naturally wants to pitch up at high angles of attack. And that the problem is more severe than they expected when they initially designed the thing.

The MCAS might have been okay if the behavior matched initial expectations.

Re:Boeing has temporarily stopped making 737 Max airplanes by julienfr112 on Tuesday January 21, 2020 @03:46PM (#22111355)
Are you sure ? I though it wanted to pitch up when engines where at full throttle, not because of angles of attack.
Re:Boeing has temporarily stopped making 737 Max airplanes by Gibbon1 on Tuesday January 21, 2020 @03:55PM (#22111446)
I think what I've read is the engine nacelles create lift at higher angles of attack. Because the nacelles are larger and located more forward than in older models. That's the source of the extra lift. Might also be the engines also contribute.

On the other hand I'm just a bystander in all this.

Re:Boeing has temporarily stopped making 737 Max airplanes by hhas01 on Tuesday January 21, 2020 @04:22PM (#22111738)
Also consider the position of the thrust point relative to the plane’s center of gravity. Being positioned below and ahead of the CoG, the engines naturally try to push the plane around it, i.e. nose-up.

Mind you, my physics ed stopped after high school (though even that much is enough to do a double-take at MAX). This looks like a much better explanation:

https://www.quora.com/Where-should-the-center-of-mass-lift-a...

Re:Boeing has temporarily stopped making 737 Max airplanes by jaywalk on Tuesday January 21, 2020 @03:48PM (#22111384)
It pitches up with throttle, due to the position of the engines. Angle of attack sensors feed MCAS, so it can detect the pitching up and adjust the elevator trim to counteract it.