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Re:Air France 447: The ‘Coffin Corner’ and a ‘Mesoscale’ Maw by biohacker42 on Monday June 08, 2009 @03:44PM (#647852)
So while you are napping, eating or watching a movie on that flight to LAX, you should know the plane you are flying is cruising along at the ratty edge of its capabilities. Why? Money. The higher an airliner flies, the better gas mileage it gets.

As libertarian I prefer an airline which will charge me premium for flying more expensive but safer routes.

However, as a realist I realize that the barrier to entry for airlines is very high and competition is sub-optimal.

So I'd settle for a government mandate of how high commercial airlines can fly.

Re:Air France 447: The ‘Coffin Corner’ and a ‘Mesoscale’ Maw by JimmyL on Monday June 08, 2009 @06:06PM (#648105)
>> As libertarian I prefer an airline which will charge me premium for flying more expensive but safer routes.

How would you even know? Saying "I'd pay more for a safer routing" is rather reminiscent of Steve Yegge's Shit's Easy Syndrome - you say you want a safer routing, but what does that mean?

You'd pay an extra ten percent on your ticket to fly ten percent lower? What about other factors - would you demand more reinforcements on the wings of the planes you fly on? How about longer flight times due to having to stop for fuel? What about how this would impact global route scheduling?

I could keep going with that, but the bottom line is that you don't understand what makes a plane safe. I don't understand what makes a plane safe. Few people - unless they're Airbus or Boeing design engineers - on this site know what makes a plane safer, and how much that would cost.

Airlines have a huge interest in making their flights safe - think off all the shitty PR that Air France (one of the world's most respected airlines) and Airbus (one of two real manufacturers of jumbo jets) are getting, and how much it will directly and indirectly cost them. The last people died on an American airline was in February. Before that, it was in August 2006. The last time an American jumbo jet crashed and killed people was in 2001. Flying is an incredibly safe way to get from point A to point B - but like everything, there are some times when nature throws us a curveball, and we get hit by it.

>> So I'd settle for a government mandate of how high commercial airlines can fly.

I wouldn't trust Congress to determine how high an airline can fly. If I want to know how high an Airbus can safely fly, I'd ask Airbus - they know the planes better than anyone, and have a huge vested in interest in keeping them safe.

Re:Air France 447: The ‘Coffin Corner’ and a ‘Mesoscale’ Maw by lutorm on Monday June 08, 2009 @07:16PM (#648206)
Flying lower = flying slower. You can already do that, just pick a plane that flies lower, like a commuter jet...

But in general, when flying it's safer to be higher and faster. By far the most dangerous thing you might encounter when flying is the ground...

Re:Air France 447: The ‘Coffin Corner’ and a ‘Mesoscale’ Maw by stcredzero on Monday June 08, 2009 @08:59PM (#648329)
Instead of flying a lot lower and slower, how about marginally lower and slower? You could give the plane 50 knots leeway in speed and still fly over most of the weather out there.

For conditions like the ones that the Air France flight was going through, this would seem prudent. You can't fly above thunderheads like that. Might as well get yourself into a safer part of the flight envelope in case something bad happens.

Re:Air France 447: The ‘Coffin Corner’ and a ‘Mesoscale’ Maw by lutorm on Monday June 08, 2009 @09:27PM (#648349)
There is a maximum safe speed in turbulence (it's called "design maneuvering speed") and I really doubt they would exceed that in these conditions. (You want the wing to stall in case of severe turbulence, because the alternative is to overstress it. That's why you don't want to fly fast.)
Re:Air France 447: The ‘Coffin Corner’ and a ‘Mesoscale’ Maw by stcredzero on Monday June 08, 2009 @10:13PM (#648399)
Yes, but that depends on the amount of turbulence, yes? Perhaps the margin of safety needs to be bigger for that region of the ocean?
Re:Air France 447: The ‘Coffin Corner’ and a ‘Mesoscale’ Maw by lutorm on Tuesday June 09, 2009 @08:33AM (#648930)
Weakly so. The idea is that you want the wing to stall and lose lift before it generates that design load limit you don't want to overstress. You generate lift by increasing angle of attack, but the idea is that the wing should stall, and thus stop generating lift, before. The amount of lift a wing can generate depends on its airspeed, so if you keep the airspeed down, the only situation in which it could generate a dangerous amount of lift would be if you entered a region of very high horizontal windshear such that the airspeed all of a sudden increases to above maneuvering speed. (So in principle you should be at least the gust speed below maneuvering speed to be safe, so here is where the margin of safety enters. But it's a second order effect.)
Re:Air France 447: The ‘Coffin Corner’ and a ‘Mesoscale’ Maw by biohacker42 on Tuesday June 09, 2009 @10:18AM (#649107)
you don't understand what makes a plane safe

Agreed. Now if the captain Sully (the guy who landed in the Hudson) says flying out of the coffin corer is safer would you believe him?

Airlines have a huge interest in making their flights safe

Yes, they also have a huge interest in being profitable, they are trying to optimize both.

There's nothing wrong with that, but as a consumer I'd like a bit more choice.

But as other in this thread have pointed out the particular nature of the airline business makes it impossible for that kind of market differentiation to happen. That's known as a market failure.

Hence my desire for a government mandate.

Alternatively, do you think we need any of the current government regulations on airlines?

Re:Air France 447: The ‘Coffin Corner’ and a ‘Mesoscale’ Maw by frisco on Monday June 08, 2009 @03:51PM (#647862)
That's a bit of a jump. How'd you go from "As a libertarian..." to "So I'd settle for a government mandate" in 3 lines?
Re:Air France 447: The ‘Coffin Corner’ and a ‘Mesoscale’ Maw by Retric on Monday June 08, 2009 @04:49PM (#647965)
However, as a realist...

I would assume HN would favor people who looked beyond knee jerk responces. Just because you like to use the free market when it's possible does not mean you need to apply it in all cases.

Re:Air France 447: The ‘Coffin Corner’ and a ‘Mesoscale’ Maw by biohacker42 on Monday June 08, 2009 @05:45PM (#648066)
Well simple.

I really do want the market to work, but I know in reality it very often does not work at all. Most often with big industries where the startup costs are high.

Do you prefer to continue to fly in a needle's eye rather then have the government step in?

Ideally at least one airline would offer the safer option as a way to gain customers, but what if no one does?

Is your libertarianism that pure? If so, that's admirable, I guess my ideals are just not quite as strong.

Re:Air France 447: The ‘Coffin Corner’ and a ‘Mesoscale’ Maw by anigbrowl on Monday June 08, 2009 @06:48PM (#648168)
Seems like a rather suicidal market strategy. So you invite people to pay 2x to fly with FlySafe (perhaps an existing airline with n outstanding safety record that rebrands itself), milk the resulting controversy to sell tickets for a while, only to later have every untoward incident, no matter how trivial, spun into a damning indictment of your business philosophy? No thanks.

Furthermore, the first time such a company did have a fatal or obviously dangerous incident, they'd go insolvent immediately. I see the point you're trying to make but it's simply impractical in a mass market like commodity air travel. Uber-expensive executive flying, perhaps.

Re:Air France 447: The ‘Coffin Corner’ and a ‘Mesoscale’ Maw by stcredzero on Monday June 08, 2009 @08:56PM (#648325)
it's simply impractical in a mass market like commodity air travel. Uber-expensive executive flying, perhaps.

If it wasn't for the coverage of this incident, I would never have known of the "coffin corner." How would market forces operate on factors of which the public is not even aware?

Re:Air France 447: The ‘Coffin Corner’ and a ‘Mesoscale’ Maw by anigbrowl on Monday June 08, 2009 @09:56PM (#648377)
And until that pilot landed in the Hudson, I'm betting you never thought too much about birds getting sucked into jet engines (I certainly didn't). Perhaps the conclusion from this is that there isn't really much utility in your being aware of it, since you're not a pilot. That is to say, the knowledge is of little benefit to you as a consumer because the weight of this particular factor in the overall safety of air travel is not that big.

Like say you design software for something critical like medical devices, and one of these fails and somebody famous dies or a bunch of people die in different places. Suddenly everyone is talking about unit testing and software verification as it pertains to your field, someone with a talent marketing starts up safercoding.com and so on. I'm not sure the stock of human knowledge has really gone up.

Re:Air France 447: The ‘Coffin Corner’ and a ‘Mesoscale’ Maw by biohacker42 on Tuesday June 09, 2009 @10:06AM (#649086)
I have to disagree. For one, I think birds flying into plane engines was common knowledge. It's certainly something I've know for as long as I can remember.

And when I got my CS degree we specifically studied accidents where bad software in medical devices killed people. I recall an X-ray machine where the hardware was upgraded and a bunch of software assumptions about when the fuses would blow became wrong. That ended up killing people.

And as someone who has written software for medical instruments I can tell you unit test coverage is part of the contracts we sign.

The coffin corner only played a small part in the accident but that's how accidents always happen. It's always several small things that go wrong together.

A safe airline would not flaunt its safety record, but it's safety practice. Not flying the coffin corner would remove that one part that can go wrong from any future accident scenario.

The safe airline having an accident would not automatically bankrupt it, every other airline has had accident and this one would continue with its safer then average practices.

However, I agree with you this will never happen because as you say the airlines are a crap commodity business. Even Warren Buffet has mentioned how bad a business airlines are for investors.

That's why even though I consider myself a libertarian I want a government mandate to stay out of the coffin corner.

We already have much more complex and difficult to enforce regulations on airlines, this one is simple and would be easy to enforce as we already track all planes on rader closely all of the time.

Re:Air France 447: The ‘Coffin Corner’ and a ‘Mesoscale’ Maw by staunch on Monday June 08, 2009 @04:35PM (#647931)
He's that smart.
Re:Air France 447: The ‘Coffin Corner’ and a ‘Mesoscale’ Maw by anamax on Monday June 08, 2009 @06:36PM (#648148)
> However, as a realist I realize that the barrier to entry for airlines is very high and competition is sub-optimal.

Is the barrier actually high? (I see new airlines every so often.)

What are the actual barriers? If they're govt, why isn't reducing the barriers the right response?

> So I'd settle for a government mandate of how high commercial airlines can fly.

And govt would get it right because that's what they do.

Didn't we just have a nice discussion of regulatory capture? (My favorite comment was by someone who thought that regulatory capture was the act of promotiing govt power grabs.)

Re:Air France 447: The ‘Coffin Corner’ and a ‘Mesoscale’ Maw by dpifke on Monday June 08, 2009 @08:51PM (#648316)
Is the barrier actually high?

Besides the obvious cost of acquiring multi-million dollar jetliners (which, if bought new, typically have to be ordered 5-10 years in advance of delivery) and signing leases for gate space and hiring ground crew at airports and so on?

You also need FAA and TSA approved operations plans, adding for instance the cost of screening all your employees and equipping your planes with things like black boxes and weather radar.

Then you end up like Virgin America, who can't fly to Chicago because the incumbent carriers there claim there are no available gates at O'Hare (despite the number of flights in and out of the airport being down like 10-20% from previous peak).

Doesn't seem that high to me...

Re:Air France 447: The ‘Coffin Corner’ and a ‘Mesoscale’ Maw by ken on Monday June 08, 2009 @09:28PM (#648351)
You don't need to buy new jetliners to run an airline. You can go to ILFC and rent them. Even big guys like American and Continental do this for some of their aircraft.

One webpage I found suggests the lease price for a 737 is between $50,000 - $100,000 per month (which seems reasonable, or maybe a little low). Wikipedia says YouTube's bandwidth costs are estimated at $1M per day, so the hardware cost of a couple aircraft doesn't seem all that expensive.

(Disclaimer: I know almost nothing about commercial aviation.)