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#1
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CNN article on problems in Air Travel, as seen by FAA
http://us.cnn.com/2007/US/09/11/airl...ing/index.html
"He blamed resistance from environmentalists for the government's failure to move more quickly toward a satellite-based technology that's been 10 years in the making. "'Residents that have homes that would be in that flight path are saying no,' Castelveter said." I'm not sure how using GPS would change airport flight paths. "She called for airlines and the government to make the transition from 1960s radar-based air traffic control systems to satellite-based technology, 'a solution that will cut delays by 20 percent and reduces noise for 600,000 people.'" I don't see how GPS replaces radar coverage, nor do I see how it would reduce delays. I guess those magic satellites are somehow going to make it all better. From what I understand of the reality, the real bottleneck is the number of runways and the number of planes that want to use them. The airports are where all the planes meet, and so that's where the conflicts and delays occur (or at least that's their ultimate origin). Airlines also seem to be scheduling too many flights. Everyone is buying 737s and A320s and running tiny flights every hour instead of 747 flights twice a day, wasting fuel and polluting the environment and overcrowding the air traffic system. Not only that, but with so many operators flying similar routes, there are even more small jets going to and fro, wasting more resources. I'm surprised that with airlines wailing about how difficult business is they nevertheless resort to practices that are so manifestly wasteful and inefficient. "The Air Transport Association's Castelveter also focused on corporate aviation. "The guys who fly around in private jets" make up about 40 percent of the air traffic in the Northeast, he said. "One would think it's not just airlines that would be asked to reduce capacity," he said. Is this number correct? |
#2
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CNN article on problems in Air Travel, as seen by FAA
"Martin" wrote in message
... On Wed, 12 Sep 2007 07:29:44 +0200, Mxsmanic wrote: http://us.cnn.com/2007/US/09/11/airl...ing/index.html "He blamed resistance from environmentalists for the government's failure to move more quickly toward a satellite-based technology that's been 10 years in the making. "'Residents that have homes that would be in that flight path are saying no,' Castelveter said." I'm not sure how using GPS would change airport flight paths. "She called for airlines and the government to make the transition from 1960s radar-based air traffic control systems to satellite-based technology, 'a solution that will cut delays by 20 percent and reduces noise for 600,000 people.'" I don't see how GPS replaces radar coverage, nor do I see how it would reduce delays. I admit to not being overwhelmed with surprise. I guess those magic satellites are somehow going to make it all better. From what I understand of the reality, the real bottleneck is the number of runways and the number of planes that want to use them. The airports are where all the planes meet, and so that's where the conflicts and delays occur (or at least that's their ultimate origin). Airlines also seem to be scheduling too many flights. Everyone is buying 737s and A320s Try to keep up at the back. and running tiny flights every hour instead of 747 flights twice a day, wasting fuel and polluting the environment and overcrowding the air traffic system. Not only that, but with so many operators flying similar routes, there are even more small jets going to and fro, wasting more resources. I'm surprised that with airlines wailing about how difficult business is they nevertheless resort to practices that are so manifestly wasteful and inefficient. Time you did some in depth research, the answers to all your uncertainties are on the web, in the meantime don't give up you day job. -- What day job? -- JohnT |
#3
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CNN article on problems in Air Travel, as seen by FAA
On Sep 12, 1:29 am, Mxsmanic wrote:
http://us.cnn.com/2007/US/09/11/airl...ing/index.html "He blamed resistance from environmentalists for the government's failure to move more quickly toward a satellite-based technology that's been 10 years in the making. "'Residents that have homes that would be in that flight path are saying no,' Castelveter said." I'm not sure how using GPS would change airport flight paths. Not necessarily airport flight paths, but the general "corridors" in which they fly. My understanding of this GPS based system is that it planes will generate their own flight paths and to a great degree "control" themselves. The result will be more direct paths between airports. Paths which are not currently used much or at all. "She called for airlines and the government to make the transition from 1960s radar-based air traffic control systems to satellite-based technology, 'a solution that will cut delays by 20 percent and reduces noise for 600,000 people.'" I don't see how GPS replaces radar coverage, nor do I see how it would reduce delays. The system being proposed is that each plane "broadcast" to other planes their location, based upon GPS coordinates. Possibly also their flight plans. It gets ATC "out of the loop" to a great degree and merely puts them in more of a "monitoring" mode. I'm sure each airport will still have a tower controlling take-offs and landings. I guess those magic satellites are somehow going to make it all better. From what I understand of the reality, the real bottleneck is the number of runways and the number of planes that want to use them. The airports are where all the planes meet, and so that's where the conflicts and delays occur (or at least that's their ultimate origin). That's one, but not the only one. Airlines also seem to be scheduling too many flights. Everyone is buying 737s and A320s and running tiny flights every hour instead of 747 flights twice a day, wasting fuel and polluting the environment and overcrowding the air traffic system. Not only that, but with so many operators flying similar routes, there are even more small jets going to and fro, wasting more resources. There is plenty of airport capacity out there. There are a few that are all jammed up, but plenty more that have little crowding at all. I'm surprised that with airlines wailing about how difficult business is they nevertheless resort to practices that are so manifestly wasteful and inefficient. Their margins are low and they are trying to increase profits through volume. "The Air Transport Association's Castelveter also focused on corporate aviation. "The guys who fly around in private jets" make up about 40 percent of the air traffic in the Northeast, he said. "One would think it's not just airlines that would be asked to reduce capacity," he said. Is this number correct? I dunno. Probably depends upon how you think "traffic" should be measured. Take-offs? Passengers? Miles? Hours? Not to mention what is meant by "private". |
#4
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CNN article on problems in Air Travel, as seen by FAA
On Wed, 12 Sep 2007 07:29:44 +0200, Mxsmanic
wrote: http://us.cnn.com/2007/US/09/11/airl...ing/index.html "He blamed resistance from environmentalists for the government's failure to move more quickly toward a satellite-based technology that's been 10 years in the making. "'Residents that have homes that would be in that flight path are saying no,' Castelveter said." I'm not sure how using GPS would change airport flight paths. They're two different things, both of which can improve delays. The changed flight paths allow for more efficient TOs and landings, while GPS allows closer flying. "She called for airlines and the government to make the transition from 1960s radar-based air traffic control systems to satellite-based technology, 'a solution that will cut delays by 20 percent and reduces noise for 600,000 people.'" I don't see how GPS replaces radar coverage, nor do I see how it would reduce delays. That's exactly what it does. GPS is much more precise than radar allowing closer spacing and straighter flight paths. I guess those magic satellites are somehow going to make it all better. From what I understand of the reality, the real bottleneck is the number of runways and the number of planes that want to use them. The airports are where all the planes meet, and so that's where the conflicts and delays occur (or at least that's their ultimate origin). Part of the problem but certainly not all. And seasonal as well, being worse in summer and less in the off months. Airlines also seem to be scheduling too many flights. Everyone is buying 737s and A320s and running tiny flights every hour instead of 747 flights twice a day, wasting fuel and polluting the environment and overcrowding the air traffic system. Not only that, but with so many operators flying similar routes, there are even more small jets going to and fro, wasting more resources. Uuh, it's better service. You can hardly fly large planes to small regional airports which is what the smaller planes service. What do you want to do? Restrict the number of operators so the fares will be less competitive and go up? I'm surprised that with airlines wailing about how difficult business is they nevertheless resort to practices that are so manifestly wasteful and inefficient. They don't. It's just the opposite and seat loads are at historical heights. "The Air Transport Association's Castelveter also focused on corporate aviation. "The guys who fly around in private jets" make up about 40 percent of the air traffic in the Northeast, he said. "One would think it's not just airlines that would be asked to reduce capacity," he said. Is this number correct? Yes, and they don't pay anywhere near their fair share of fees either. |
#5
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CNN article on problems in Air Travel, as seen by FAA
TMOliver wrote:
I don't know if the 40% is correct, but "executive jet a/c" certainly receive a "free ride" from the current system. Well a Citation CJ3 burns about 111 GPH at a tax rate of $0.219 that works out to about $24.31 per hour. While not not outrageous it isn't free. |
#6
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CNN article on problems in Air Travel, as seen by FAA
On Wed, 12 Sep 2007 10:19:31 -0400, NotPC
wrote: Is this number correct? Failure of leadership at the FAA by politically correct appointees(WOMEN and BLACKS) who are clueless and incompetent That is the problem at the FAA. The culture is ****ed up The Civil rights staff is bigger than the Safety and Technical Staff "Kissing the Black Ass" supersedes safety and innovation at the FAA. It's HUD and FEMA not the FAA any longer A big Guvment Cluster **** Yeah, get rid of all the women and blacks. And take the stupid bigots with them at the same time. |
#7
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CNN article on problems in Air Travel, as seen by FAA
me writes:
Not necessarily airport flight paths, but the general "corridors" in which they fly. My understanding of this GPS based system is that it planes will generate their own flight paths and to a great degree "control" themselves. The result will be more direct paths between airports. Paths which are not currently used much or at all. But the only residents exposed to noise from aircraft regularly are those directly adjacent to airports. How would GPS navigation diminish this noise, as the article implies? The system being proposed is that each plane "broadcast" to other planes their location, based upon GPS coordinates. Possibly also their flight plans. It gets ATC "out of the loop" to a great degree and merely puts them in more of a "monitoring" mode. I'm sure each airport will still have a tower controlling take-offs and landings. Sounds like a terrorist's fondest dream. And each failure endangers aircraft for miles around, and when there are lots of aircraft aloft, it's not fail-safe, it's fail-for-sure. There is plenty of airport capacity out there. There are a few that are all jammed up, but plenty more that have little crowding at all. Then apply quotas to commercial airline traffic, so that it is forced to distribute the load over many different airports (or make fewer flights with larger aircraft, which would be more efficient, anyway). Their margins are low and they are trying to increase profits through volume. But they are not serving the public interest in doing so. Perhaps it's time to re-regulate. |
#8
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CNN article on problems in Air Travel, as seen by FAA
John Kulp writes:
They're two different things, both of which can improve delays. The changed flight paths allow for more efficient TOs and landings, while GPS allows closer flying. How does this diminish noise to residents adjacent to airports (the only ones affected by noise)? That's exactly what it does. GPS is much more precise than radar allowing closer spacing and straighter flight paths. GPS does not track aircraft; radar does. Uuh, it's better service. You can hardly fly large planes to small regional airports which is what the smaller planes service. What do you want to do? Fly larger aircraft less often to the major airports, reducing fuel consumption, pollution, stress on the environment, and noise. Restrict the number of operators so the fares will be less competitive and go up? Regulate the nature and amount of commercial airline traffic, which is almost the same thing. They don't. It's just the opposite and seat loads are at historical heights. Flying multiple flights with smaller aircraft is much less efficient than flying once with a larger aircraft. |
#9
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CNN article on problems in Air Travel, as seen by FAA
TMOliver writes:
Currently, radar ATC is structured so that all a/c follow charted "corridors" enroute to destinations. It is assumed that a GPS-based system will allow direct flight paths, saving substantial time and distance. Because of the possibility of inoperative GPS systems in individual a/c, the radar system will have to remain in place and be maintained. What provision is made for failing GPS systems aboard aircraft? One aircraft misreporting its position could cause serious trouble for an entire region. One aircraft or transmitter deliberately sending out false information could be a terrorist's dream. Your compehension of reality is pretty limited, then. There are plenty of runways and no real overload of a/c. The problem occurs with too many flights coming and going from the same destinations at peak times. And why isn't that correlated with the number of available runways? Twice the runways means roughly twice the capacity. A 737 with 150 aboard is several magnitues chaper to operate that 1 747 with 300+. Several orders of magnitude? Meaning _at least_ 100 times cheaper? What are the exact costs, and where did you find them? Airlines chose equipment and flight schedules to attempt to meet customer demand. Obviously, any improved system based on hub/spoke operations, the "norm" for US domestic service, will likely mean longer layovers as flight "blocks" are speced to reduce crowding. Smaller a/c are however here to stay and are the mainstay of furure planning by airlines. That's just what they said about 747s. "Jumbos" are suitable only for limited routes requiring consistent passenger levels and types of service. There suitable for all sorts of service, if you don't need a departure every 15 minutes. Woulkd you care to describe those..... Flying many small planes instead of fewer large ones. I look forward to your details on operating costs. |
#10
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CNN article on problems in Air Travel, as seen by FAA
On Wed, 12 Sep 2007 19:16:07 +0200, Mxsmanic
wrote: John Kulp writes: They're two different things, both of which can improve delays. The changed flight paths allow for more efficient TOs and landings, while GPS allows closer flying. How does this diminish noise to residents adjacent to airports (the only ones affected by noise)? By flying different paths than now. That's exactly what it does. GPS is much more precise than radar allowing closer spacing and straighter flight paths. GPS does not track aircraft; radar does. Funny, GPS can place a smart bomb right on a target it tracks, but it can't track aircraft. I have news for you. I was on an international flight a while back and was talking to the relief pilot. He said the US was the only country NOT using GPS and was totally outdated. So how, then, do the flights get to where they're going? Uuh, it's better service. You can hardly fly large planes to small regional airports which is what the smaller planes service. What do you want to do? Fly larger aircraft less often to the major airports, reducing fuel consumption, pollution, stress on the environment, and noise. Ah, so you reduce shedules making them less convenient for the public, force aircraft to buy and sell aircraft they don't want, etc. etc. Brilliant. Restrict the number of operators so the fares will be less competitive and go up? Regulate the nature and amount of commercial airline traffic, which is almost the same thing. Sure. Regulation does wonder. Deregulation did nothing for the industry. Brilliant once again. They don't. It's just the opposite and seat loads are at historical heights. Flying multiple flights with smaller aircraft is much less efficient than flying once with a larger aircraft. You can babble this all you want. It hardly makes it true. And it's not. |
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