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The Boeing 747 begins its final descent

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Re: The Boeing 747 begins its final descent

#291
post #287

Earlier quoted context omitted.

But if $DAYJOB actually keeps you from your dying kid's bedside, is it still there to "sustain" it? Or is it just leeching into your life?

Why do you write '$DAYJOB'?

General nerd slang for "fill in the name of it here" based on coding syntax

so like imagine your day jobs employers name in that part

Re: The Boeing 747 begins its final descent

#292
post #279

Earlier quoted context omitted.

> When I’m in DC I swipe a card, walk on, walk off. Same with New York and Amsterdam. Even Netherlands into France is walk on/walk off What train did you take to France? Everytime I go to Belgium I have to be careful to pick a train that doesn't require me to book a ticket on a specific train. I really like the "I'll get the next train whenever I reach the station" that domestic trains have. For long distance interna…

Eurostar. Buy tickets online, walk up to gate, QR code beeps on a little scanner, walk onto train. That was it. No TSA-like security experience, no person checking anything (except one guy who walked around on the train and scanned one ticket which registered all our tickets at once, pretty uneventful). UK is a notable exception but they’re also kind of insane about government surveillance/security, especially post-b…

The Channel Tunnel has security checks because it's a 30km undersea tunnel, and separates an island country with a different approach to weapons to its neighbour. There are no security checks on any other trains in the UK.

It's also not necessary (in Europe) to buy tickets any differently when crossing borders. Advance-purchase tickets are used for long-distance high-speed trains where they don't want people sitting, or wish to spread the demand throughout the day to avoid crowding — that applies whether or not a border is crossed.

I can buy a ticket (paper or electronic) moments before the train from Copenhagen to Malmö leaves, since it's a medium-distance regional train without reserved seating.

Re: The Boeing 747 begins its final descent

#293

I know less about the airframe differences across the -400 and -8, but I can say the 747-8 represented a major upgrade in Flight Management Software. I re-wrote the Central Maintenance System (portion inside the FMS) in C from scratch because no one had the original detailed design documents. The original -400 code was written in Pascal if I'm remembering correctly. I gleamed what I could from the source and relied o…

> "no one had the original detailed design documents"

Is this normal for a comany like Boeing? It's not my area, but I would have guessed they would keep the documentation for everything on a product as important as a 747.

Re: The Boeing 747 begins its final descent

#294

I know less about the airframe differences across the -400 and -8, but I can say the 747-8 represented a major upgrade in Flight Management Software. I re-wrote the Central Maintenance System (portion inside the FMS) in C from scratch because no one had the original detailed design documents. The original -400 code was written in Pascal if I'm remembering correctly. I gleamed what I could from the source and relied o…

That executive has lost any human decency and should be fired.

Not just human decency. We all know that some CEOs will sacrifice your child for their goal. In fact, many people are ready to sacrifice other people children as long as they are distant enough, war wouldn't be a thing if we didn't.

But saying it out loud is another thing, it is, to me, a terrible blunder in terms of communication, and executives who talk like that should 100% get fired. They are the face of the company, what they say and how they say it matters. Maybe it matters even more than the technical part of their job. If they get a pass for saying things like that, that's even worse, because it means that it is what the shareholders and customers want to hear.

Re: The Boeing 747 begins its final descent

#295

I know less about the airframe differences across the -400 and -8, but I can say the 747-8 represented a major upgrade in Flight Management Software. I re-wrote the Central Maintenance System (portion inside the FMS) in C from scratch because no one had the original detailed design documents. The original -400 code was written in Pascal if I'm remembering correctly. I gleamed what I could from the source and relied o…

I hope you replied something like 'No, meeting this project deadline is more important than YOUR child dying, to me this is a paycheck.' That's what I would've been thinking in the shower 2 days after the conversation, anyway.

I'm shocked people here believe that this was actually said. Or maybe I'm not.

It's laughable, but Hackernews loves a good, "everyone in management is evil" story.

Re: The Boeing 747 begins its final descent

#296
post #294

Earlier quoted context omitted.

That executive has lost any human decency and should be fired.

Not just human decency. We all know that some CEOs will sacrifice your child for their goal. In fact, many people are ready to sacrifice other people children as long as they are distant enough, war wouldn't be a thing if we didn't. But saying it out loud is another thing, it is, to me, a terrible blunder in terms of communication, and executives who talk like that should 100% get fired. They are the face of the comp…

[flagged]

Re: The Boeing 747 begins its final descent

#297

Earlier quoted context omitted.

Transcontinental railroads weren't fighting against physics. There's a reason people are pretty sure it won't work and it's not the difficulty of getting them into space or maintening them space or generally protecting them from space. Of course, those are all considerations as well. No, it's the cooling. https://taranis.ie/datacenters-in-space-are-a-terrible-horri...

> cooling I've seen many confident assertions about that issue. Do you think Musk doesn't know about it? People thought you couldn't reuse rockets, either. Or land them on their tails. Or pluck them out of the air with chopsticks.

Or launch atop an unprotected flat slab of concrete

Re: The Boeing 747 begins its final descent

#298
post #294

Earlier quoted context omitted.

Not just human decency. We all know that some CEOs will sacrifice your child for their goal. In fact, many people are ready to sacrifice other people children as long as they are distant enough, war wouldn't be a thing if we didn't. But saying it out loud is another thing, it is, to me, a terrible blunder in terms of communication, and executives who talk like that should 100% get fired. They are the face of the comp…

[flagged]

Of course there is not zero percent chance executive said it. If you dont believe so, you never listened to what people including executives actually say in practice.

Trying to insult OP does not make an argument.

Re: The Boeing 747 begins its final descent

#299

Earlier quoted context omitted.

Engines became reliable enough for regulators to allow two engine planes to cross large bodies of water. (ETOPS) That's what really killed 4 engine planes.

Twin engines are actually safer than four.

Is this because of something analogous to an expected value calculation? Like the increased probability of failure of a single engine when carrying 4, combined with the lower excess power per engine, means that the safety margin of a 4 engine plane is worse? Or is it something to do with the doubling of the number of critical parts that could fail? I'm struggling to come up with a workable argument why 2 is safer, it seems counterintuitive. I don't have enough of the puzzle.

EDIT: Never mind, I see you wrote more down below about this. It's increased risk of a catastrophic engine failure bringing down the entire plane, not an engine simply dying and forcing a landing. Four engines = twice as many chances for that to happen.

Re: The Boeing 747 begins its final descent

#300
post #294

Earlier quoted context omitted.

Not just human decency. We all know that some CEOs will sacrifice your child for their goal. In fact, many people are ready to sacrifice other people children as long as they are distant enough, war wouldn't be a thing if we didn't. But saying it out loud is another thing, it is, to me, a terrible blunder in terms of communication, and executives who talk like that should 100% get fired. They are the face of the comp…

[flagged]

Do you have any reason to back up your claims?

See the guidelines “Please respond to the strongest plausible interpretation of what someone says, not a weaker one that's easier to criticize. Assume good faith.”

Just because this story points out that one executive many years ago said something very unsavory is not a generalization for all executives.

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