Man vs nature - guess who loses
If there is anything the crash of flight AF447 in the Atlantic proves, it is that even man’s most advanced technology can be overwhelmed by the forces of nature. The Airbus A330 involved was one of the most modern and advanced airliners ever built, with an exemplary safety record. But even that plane was not able to climb high enough into the stratosphere to stay above the thunderstorms of the tropical ‘Black Hole’ where airflows from the northern and southern hemispheres encounter each other. It now seems likely that it could not handle the combination of heavy icing, hail, excessively powerful turbulence and possibly lightning strikes, in whatever order or simultaneously.
This accident also demonstrates the arrogance of man, and what happens if economic considerations and the ‘need’ for speed outweigh safety concerns.
The shortest route between Paris (Europe, basically) and Rio passes right through the ‘Black Hole’, where planes frequently encounter severe thunderstorms. Using their weather radar, the pilots can anticipate those encounters and change course to avoid the most powerful cumulonimbus ‘towers’, where turbulence may be powerful enough to literally rip even a large airliner apart, and where hailstones the size of eggs smash into the cockpit windscreen. But as most people involved in aeronautical weather forecasting know, thunderstorms can rapidly grow ‘children’, and once a plane finds itself surrounded by fast-growing CB towers, it may be trapped. The thunderstorm area encountered by AF447 was particularly large, and the question rises whether its existence, or development, was not known by the time of take-off about six hours earlier, and if it would not have been possible to divert the flight either to the US or along a trajectory south of the storm area, crossing the ocean straight eastward to Africa. In both cases, very likely an intermediate landing would have been needed, or a lot more fuel carried. Of course, the company could even have decided to cancel the flight, or to wait for better weather - which apparently is almost impossible on that route, as the weather is always bad.
So the question rises: do airlines deliberately send planes into known areas with frequent severe weather for economic reasons? Because it shortens the trip and thus saves fuel? Because it enables them to offer a faster direct flight to faraway destinations, and thus to sell more tickets compared to companies who only offer indirect connections?
The answer is probably ‘yes, they do’.
In this particular case there is another disconcerting possibility: that the pilots were forced to cut it a bit too close. Air France/KLM at the time was suffering from extremely high fuel costs compared to other companies - the result of a long-time fuel contract they had signed with their suppliers in late 2008. They thought that fixing the price for kerosene at 80 dollars per barrel was advantageous at the time, but the oil prices kept on collapsing and other companies managed to sign contracts for prices between 60 end 70 dollars per barrel... Did this perhaps cause the company to prohibit the crews from taking on ‘too much’ spare fuel, thus making it impossible for them to take a long trajectory around the thunderstorm area - instead forcing them to cross through the area and zig-zag between the worst cumulonimbus cells? Did they finally get trapped as a result of that?
The long-haul flight Paris-Rio is about 9200 kilometres in a straight line (‘great circle’ distance). The A330-203, the type used for flight AF447, has a maximum range of 12.500 kilometres (likely less with headwind, more with tailwind). Thus with a full fuel load, it could have flown at least 2000 kms around the storms and still kept a 1000-km safety margin. So why did it not take that long way around? Why did it not traverse the Atlantic a safe 500 kilometers or so southward, towards Africa, and then skirted the African coastline towards Europe? It had the range to do that, if it was fully fueled up. Sure, it would have landed one or two hours later, but those 226 people on board would still have been alive.
Being a pilot myself - of hot-air balloons, but still - I can certainly imagine that no captain, no pilot of even the strongest, most powerful plane ever built is happy to fly through a severe-weather area like the ‘black hole’. Given the choice, they would likely prefer to take the long way around. But it seems they are not given that choice by their employers.
And this time, Nature did not play along with the bean counters.
Soft landings.
Wednesday, June 3, 2009
Saturday, May 23, 2009
I blog, therefore I am. Right?
Being a freelance copywriter who has been making a living from writing and editing for a lot longer than the World Wide Web has been in use, there is no escape for me: I will need to blog to keep up with the rest of the world. With the people who live in urban environments and who are connected to the internet, that is. Thus, with you.
The problem for me is that for most of my admittedly very modest career as a writer and editor, I have worked, either as an employee or freelance, for large corporations or ad agencies who paid healthily for specific projects. “Write an article on an ISO 9000 quality project”, “Please make a brochure on this natural gas field exploration project because we can’t explain it to people otherwise - oh, and money is no object.” “Can you write a book on the 100-year history of a major theatre, including most of the research, in three months?”
Things like that. My texts were sold before they had even been written. At least someone wanted to read them - or offer them to other people to read.
Nowadays, everybody and his dog blogs and twitters. Some people apparently can’t turn a street corner without feeling a desperate need to shout about it on the internet. Two years ago almost nobody ever felt that need, but now we must.
I really don’t think it will help us to become more open towards people. I fear that many city dwellers will turn their street corners looking down on their phone screens, thumb-messaging their way to carpal tunnel syndrome, while completely ignoring all sorts of interesting things happening in the real world around them.
Still, it’s the world we live in, so I will leave some musings here from time to time. I have even opened a Twitter account (protected for the moment). Weird.
The only thing I may offer is a slightly different viewpoint on things compared to that of the twittering European or American city-dweller. For two reasons: first, I live in a rural setting where even ordinary mobile phone networks offer no perfect coverage, 3G is all but non-existent, where the density of wifi hotspots is something like one per 100 square kilometres and the fastest ADSL broadband we can get is 2 megabits per second (and up to a year ago, we had no ADSL at all), the nearest fiberoptic node is probably about 50 kms away and any twittering going on is that of the birds. My life does not exist of running through a city looking for the nearest Starbucks where a geotagged friend is just having a Frappucino - a lot of it, when not writing or trying to keep up with the world through the web, is filled with things like shoveling donkey manure, mowing grass, making slow progress in finishing our home, watching real birds nesting around the house...
Secondly, I take to the skies in a hot-air balloon a few dozen times each summer. And even though that balloon now carries a GPS receiver to keep track of where it is and where it is going, and we communicate by radio or mobile phone with out retrieve vehicle, it remains a very oldfashioned way of traveling through the skies: you move with the winds, with very little influence on your track and no way to know where you will end up. It’s the ultimate opposite of the twitter-blogging urban rat race.
Anyway, we live in the era of ‘I blog, therefore I am’, so I’ll blog. A bit. Sometimes.
The problem for me is that for most of my admittedly very modest career as a writer and editor, I have worked, either as an employee or freelance, for large corporations or ad agencies who paid healthily for specific projects. “Write an article on an ISO 9000 quality project”, “Please make a brochure on this natural gas field exploration project because we can’t explain it to people otherwise - oh, and money is no object.” “Can you write a book on the 100-year history of a major theatre, including most of the research, in three months?”
Things like that. My texts were sold before they had even been written. At least someone wanted to read them - or offer them to other people to read.
Nowadays, everybody and his dog blogs and twitters. Some people apparently can’t turn a street corner without feeling a desperate need to shout about it on the internet. Two years ago almost nobody ever felt that need, but now we must.
I really don’t think it will help us to become more open towards people. I fear that many city dwellers will turn their street corners looking down on their phone screens, thumb-messaging their way to carpal tunnel syndrome, while completely ignoring all sorts of interesting things happening in the real world around them.
Still, it’s the world we live in, so I will leave some musings here from time to time. I have even opened a Twitter account (protected for the moment). Weird.
The only thing I may offer is a slightly different viewpoint on things compared to that of the twittering European or American city-dweller. For two reasons: first, I live in a rural setting where even ordinary mobile phone networks offer no perfect coverage, 3G is all but non-existent, where the density of wifi hotspots is something like one per 100 square kilometres and the fastest ADSL broadband we can get is 2 megabits per second (and up to a year ago, we had no ADSL at all), the nearest fiberoptic node is probably about 50 kms away and any twittering going on is that of the birds. My life does not exist of running through a city looking for the nearest Starbucks where a geotagged friend is just having a Frappucino - a lot of it, when not writing or trying to keep up with the world through the web, is filled with things like shoveling donkey manure, mowing grass, making slow progress in finishing our home, watching real birds nesting around the house...
Secondly, I take to the skies in a hot-air balloon a few dozen times each summer. And even though that balloon now carries a GPS receiver to keep track of where it is and where it is going, and we communicate by radio or mobile phone with out retrieve vehicle, it remains a very oldfashioned way of traveling through the skies: you move with the winds, with very little influence on your track and no way to know where you will end up. It’s the ultimate opposite of the twitter-blogging urban rat race.
Anyway, we live in the era of ‘I blog, therefore I am’, so I’ll blog. A bit. Sometimes.
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