> However, for sure this crash should have never happened but it only happened because they were testing the limits of both the train and the track.
No. It happened because they were under-prepared and disorganized, and thereby didn't respect the speed restrictions for the segment of track they were on.
They crashed entering a 175 km/h segment at 265 km/h, which is well above the 10% overspeed they were theoretically testing that day.
FedEx did and they retired them in the last 5 years because they had reached the end of their economical service lifetime and not because of any major flaw.
Correct. And you could pay for the MCAS to use both sensors which all US airlines did.
Edit: I was misremembering. Both sensors were enabled on all planes and MCAS only used one at a time on all planes.
What was disabled, unless paid for, was software which displayed to the pilots that the 2 sensors were disagreeing, which would immediately have alerted them to what may have been wrong.
> According to Bjorn Fehrm, Aeronautical and Economic Analyst at Leeham News and Analysis, "A major contributor to the ultimate loss of JT610 is the missing AoA DISAGREE display on the pilots' displays."[109]
> The software depended on the presence of the visual indicator software, a paid option that was not selected by most airlines.[110] For example, Air Canada, American Airlines and Westjet had purchased the disagree alert, while Air Canada and American Airlines also purchased, in addition, the AoA value indicator, and Lion Air had neither.[111][112] Boeing had determined that the defect was not critical to aircraft safety or operation, and an internal safety review board (SRB) corroborated Boeing's prior assessment and its initial plan to update the aircraft in 2020. Boeing did not disclose the defect to the FAA until November 2018, in the wake of the Lion Air crash.[113][114][115][116] Consequently, Southwest had informed pilots that its entire fleet of MAX 8 aircraft will receive the optional upgrades.[117][118] In March 2019, after the second accident of Ethiopian Airlines Flight 302, a Boeing representative told Inc. magazine, "Customers have been informed that AoA Disagree alert will become a standard feature on the 737 MAX. It can be retrofitted on previously delivered airplanes."[119]
Boeing: Do you want a two line code which triggers a potentially life-saving warning when your flying sausage with wings has an important sensor malfunction?
Customer: Of course!
Boeing: That'll be $25K, thanks.
Also, no-smoking light toggle labeled Off - Auto - On is being relabeled and rewired to On - On - On is hilarious.
Airlines don't negotiate prices based on the exact options selected, they select a list of options and then negotiate on price from there. This particular option does not appear to have a price associated with it, it just increases the cost of training and documentation for pilots and some airlines would opt out of using it.
People talking about MCAS seem to simultaneously pound the line that everything on the aircraft the pilots encounter should be trained for and forget that adding new stuff to the flight displays will incur additional training that an airline may not want to deal with.
Such a terrible business decision considering the crashes and their impact on Boeing's reputation. If you think a feature will keep the product from catastrophic failure, it should be standard on every unit you sell.
This kind of thing is not new. In 1998 I worked for a large corporation (I think they were an F100 at the time) that built machines with a feature that could only be enabled if the customer paid an extra fee and had a field technician come out to "install" it.
Unknown to the customer was that all machines were identical. The technician's "installation procedure" was to enter the Service Mode password, select the feature enable option, and exit Service Mode then run a test to make sure it worked.
This is pretty common in commercial/industrial manufacturing. The exception cost to omit certain hardware subsystems when building a product is often higher than the cost of the hardware itself, so it makes more sense to build everything identically and enable/disable features in software.
> That does not however answer the question of whether they just got lucky, or were more skilled, though there are some indications that it may have been skill.
What a load of bullcrap. Full stop.
The crews of the two crashed 737Max were also well trained, skilled professionals.
That the US-based crews decided to re-engage the auto-pilot, and with that action, by sheer luck, managed to bypass the fatal MCAS issues, shows you exactly what it was: sheer luck.
These pilots reacted to a system malfunction of a system they hardly knew existed (thanks to Boeing's lies), that changed the aircraft subsystems behaviour in fundamental, undocumented ways compared to the previous generation of 737s, and that they were therefore not trained to handle. So skill differences did not enter the equation, luck did.
The choice was between doing the manual procedures they were trained to do to try to regain control, and the hail mary approach of re-engaging the autopilot wtith the hope the problem went away. With no time to do both. The crashed crews chose option 1, the US crews option 2.
I am with you, this is just BS. The whole point of 737Max what that experience with 737 was enough, with maybe some small adjustments. Now claiming that you need to be some kind of super-pilot to keep the 737Max in the air when the thing tries to kill you is total bullshit.
This is like Tesla claiming that all crashes due to autopilot failures are driver faults because they are not properly trained... it is supposed to be a car driveable with a regular car license! If you need extra train to drive it properly, be explicit.
DuckDuckGo has also been my goto for years, but it is also getting swamped with SEO-rigged spam sites.
2 days ago I was making multiple searches looking for the websites of specific hotels and spa facilities, and none of them showed up in the first 4 pages of results, even when searching by exact name.
Out of desperation I switched back to Google, and, surprisingly, it was willing to give me what I was looking for on the first page. (But not as first result, of course..)
> DuckDuckGo has also been my goto for years, but it is also getting swamped with SEO-rigged spam sites.
True, but DDG seems, at the very least, no more afflicted than other engines. If I'm supposed to pay for a search engine, I expect something better than DDG.
Just out of curiosity as I don't own a vacuum robot: do yo loose any key functionality by rooting your device with Valetudo, compared to what the manufacturer offers?
Yes, they put that on their website. That if you are looking for features, stick with the original firmware. Valetudo is for privacy. That being said, they still support most of the features and honestly I don't miss anything.
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