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#141
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On Jun 22, 3:55 pm, wrote:
And since it is doubtfull you could build an airplane with automated machinery that inputs sheet steel, stamps out parts, and spot welds them together, airplanes will likely always be labor intensive to build. I dunno. When I learned to fly in the 1970s I asked the Cessna dealer how much a new 172 cost. "Way too much," he said. "$21,000." It WAS a lot, considering that I was making maybe $14000 a year, so it would have cost me 1.5 years' salary. Now a 172 costs well over $200k. What happened? $200K is a long way past 1.5 times my salary. Dan |
#142
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On Jun 22, 7:20*pm, Nomen Nescio wrote:
-----BEGIN PGP SIGNED MESSAGE----- From: Le Chaud Lapin Not sure if they did. *I remember there was a lot of interest, but one must not confuse intellectual curiosity with inclination to purchase. The average consumer simply does not have an extra $5000US ($10,000US in France) I'll leave it to others to ponder the question "Why would someone who claims to live in Texas, and also claims NOT to be a "MX sockpuppet", be quoting the price of a Segway in France"? Because Wikipedia states that a Segway in France exceeds $10,000US. -Le Chaud Lapin- |
#143
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#144
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On Jun 22, 9:44*pm, Steve Hix
wrote: In article , wrote: On Jun 22, 3:55 pm, wrote: And since it is doubtfull you could build an airplane with automated machinery that inputs sheet steel, stamps out parts, and spot welds them together, airplanes will likely always be labor intensive to build. * * * * I dunno. When I learned to fly in the 1970s I asked the Cessna dealer how much a new 172 cost. "Way too much," he said. "$21,000." It WAS a lot, considering that I was making maybe $14000 a year, so it would have cost me 1.5 years' salary. * *Now a 172 costs well over $200k. What happened? $200K is a long way past 1.5 times my salary. Back in the early 70s the FBO I worked for bought a new Piper Fliteliner (PA28-140) to use for instruction. $20K. Two years later, they bought a basic new Warrior to help keep up with the growing student load. That one was $107K. I blame the lawyers, and the liability issues that followed in their train. Perhaps indeminfication of the manufacturer could become standard for certain types of aircraft. States life California might not allow it, but some states might. -Le Chaud Lapin- |
#145
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On Jun 22, 8:10*pm, Nomen Nescio wrote:
-----BEGIN PGP SIGNED MESSAGE----- From: Le Chaud Lapin Many of these interested parties are experienced pilots themselves, and some of them are highly-respected aeronautical designers who understand many of the technical problems presented in this thread, yet they still persist. Why then, in this group, is there such a resistance to a PAV? 2) Most of us are aware that, eventually, systems will fail and a human will live or die because of his ability to handle the situation without a machine doing the "thinking". 3) We can imagine what it would be like if the average driver took to the skies. These same statements could have been applied to automobiles at the turn of the century, but eventually, average drivers were allowed drive. Certainly you do not expect the sky to remain off-limits to average drivers forever. It is very likely, eventually, that something will have changed to allow them into the sky. What will have changed? Perhaps we underestimate the ability of humans to adapt to new types of machines. -Le Chaud Lapin- |
#146
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Le Chaud Lapin wrote:
On Jun 22, 8:10 pm, Nomen Nescio wrote: -----BEGIN PGP SIGNED MESSAGE----- From: Le Chaud Lapin Many of these interested parties are experienced pilots themselves, and some of them are highly-respected aeronautical designers who understand many of the technical problems presented in this thread, yet they still persist. Why then, in this group, is there such a resistance to a PAV? 2) Most of us are aware that, eventually, systems will fail and a human will live or die because of his ability to handle the situation without a machine doing the "thinking". 3) We can imagine what it would be like if the average driver took to the skies. These same statements could have been applied to automobiles at the turn of the century, but eventually, average drivers were allowed drive. Certainly you do not expect the sky to remain off-limits to average drivers forever. It is very likely, eventually, that something will have changed to allow them into the sky. What will have changed? Airliners and simulators |
#147
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On Jun 23, 12:13*am, Jim Stewart wrote:
Le Chaud Lapin wrote: On Jun 22, 8:10 pm, Nomen Nescio wrote: -----BEGIN PGP SIGNED MESSAGE----- From: Le Chaud Lapin Many of these interested parties are experienced pilots themselves, and some of them are highly-respected aeronautical designers who understand many of the technical problems presented in this thread, yet they still persist. Why then, in this group, is there such a resistance to a PAV? 2) Most of us are aware that, eventually, systems will fail and a human will live or die because of his ability to handle the situation without a machine doing the "thinking". 3) We can imagine what it would be like if the average driver took to the skies. These same statements could have been applied to automobiles at the turn of the century, but eventually, average drivers were allowed drive. Certainly *you do not expect the sky to remain off-limits to average drivers forever. It is very likely, eventually, that something will have changed to allow them into the sky. What will have changed? Airliners and simulators- Airliners might see a decline in use as a result of PAV's, but simulators might still be useful for training. -Le Chaud Lapin- |
#148
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Le Chaud Lapin wrote:
On Jun 20, 1:47 pm, Gig 601Xl Builder wrote: Le Chaud Lapin wrote: I know you think that there is all this open source software and electronic hardware that is available and cheap. And you have been raised to think that there is not problem that a few silicon chips can't fix. BUT I can pretty much assure you that there are a lot of people a lot smarter than you in the world and some of them work for companies called Lockheed and Boeing and even Cessna and Cirrus. Tell me this. If it could be done cheaper why aren't any of these companies doing it? It isn't like they are making all the money they want and I'm sure any of them would be more than happy to increase the size of the market for aircraft by 1000 fold. I am glad we agree about the desirability of a PAV. As for why it has not been done yet, I think the answer has more to do with managerial dynamics than technology. Ten years from now, someone will invent a system, software or otherwise, that will be herald as a "breakthrough". The fundamental components that are required to build that system most likely exist today, in 2008, especially in the case of software. What changes in 10 years that makes the breakthrough able to occur later than sooner? I don't agree that it is desirable. I said that, don't you think that if the aviation companies would like to increase their market share 1000 fold? Software doesn't make airplanes fly. And as I mentioned I think this is your problem, you think it does. Might something be invented in the next 10 years that makes PAV an option? Sure, I have no idea what might be invented in the next 10 years. Somebody might invent Mr. Fusion. What I can guarantee is that no SOFTWARE is going to be written in the next 10 years or ever that is going to make current hardware able to fulfill your idea of a PAV. There are a lot of very smart software people out there and there are also a lot of folks who build homebuilt aircraft. There is bound to be a subset in there of the two and none of them have done it. I want the flying car I've been promised by "Popular Science" and so do a lot of other people and Boeing and Cessna and Cirrus and the other know it. They just don't know how to make it because with technology available today it can't be made. I disagree with this. There is a difference between cannot and has not. If the truth were always "cannot", there would never be any breakthroughs. If you say that there will be breakthroughs, but it will be done by Boeing, Cessna, or Cirrus, then NASA should take the CAFE/PAV award and give it to engineers inside those companies directly. -Le Chaud Lapin- I'll repeat there is no way SOFTWARE could make current technology do what you want to do. If you think I'm wrong prove it. It is up to the person making the wild ass claims to do so. Otherwise your are asking us to prove a negative and we can't do that. |
#149
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Le Chaud Lapin wrote:
On Jun 20, 4:27 pm, "Neil Gould" wrote: GA is a small market. Too small to warrant specialized development of much of anything, which is why most of the components are either used or spin-offs from other areas of aviation. Comparing it to the _general_ automotive market is completely off-base, as even a single model of a single brand in a single year will have more units in the market than all of GA. It's a Catch-22. The FAA, NASA, DARPA, CAFE, and other organizations are trying to make it not a small market, so the assumption is that, if a PAV were created, it would be created for a mass market. You just named three government agencies and a non-profit. By all their very nature they are designed to blow smoke up the publics collective ass. Winning the X-Prize isn't what motivated SpaceShipOne into sub-orbital flight. It was a nice bonus though. The $250,000 prize CAFE is offering won't even buy and fly one copy of what they are trying to replace. So, to think that a body of expert programmers will somehow collaborate on systems that, at best will be less reliable than the pulley and wire that they replace is an unrealistic fantasy. A bit of a stretch. BTW - if you think that "the material costs of software is $0", let me know where you're getting your language compilers and hardware to create and test your code. And, don't tell me about "Open Source" options, either, unless you want to increase your development costs by a factor of 100 or so. Accountants define material cost to be the cost of the components from which the system is synthesized, not from the tools used to design or create the system. For example, the material cost of an iPod would include its hard disk, RAM, ROM, resistors, capacitors, dials, faceplace, battery holder, wires, mounts, shock absorbers, etc. It would not include dehumidifier, blower, oscilloscope, spectral analyzer, or other factor equipment used to manufacture the product. The material cost of software, if sold in a store, would include the cost of manual, the disks, and the packaging. Compilers and hardware do not factor into the material cost of software any more than an oscilloscope factors into the material cost of an iPod. To determine what components are considered "material", move the product over a large distance. Whatever components move with the products, those components are considered material. Those that stay behind are something else. -Le Chaud Lapin- But those things still have to be paid for and are figured into the cost of the software so the cost of software is zero. |
#150
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Le Chaud Lapin wrote:
On Jun 20, 9:55 pm, Steve Hix wrote: In article , wrote: On Jun 20, 12:15 pm, Le Chaud Lapin wrote stuff: Just a gimmick addict, I think you are. If you want to fly, fly. if you want to take pictures or listen to music or do a lot of other things that distract you from paying attention That's my wife's job when we fly. I'm too busy trying to stay ahead of the airplane, avoid traffic, and get to where we're headed. so that you don't collide with other airplanes or get lost on a cross-country, then find some other means of travel, like in an airliner. When she gets her license, then I can take pictures. I have heard a lot of pilots complain that they cannot enjoy the scenery when they are PIC. The pilot I flew with said he liked for me to take the controls because he could enjoy the scenery for a change. Then you really need to be more careful with whom you are flying. There is no reason a competent pilot shouldn't be able to enjoy the view during the en-route portion of the flight. It should be possible to have it both ways - "flying" as Dan calls it, or sitting back and relaxing and enjoying the scenery, with more advanced form of auto-pilot, with multiple cameras streaming entire flight to 1TB hard disk, of course. The technology has been around a long time to take in flight video. But I want it in live 3D NOT on a TV screen after the flight. |
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