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#361
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Why don't voice radio communications use FM?
Mxsmanic wrote:
Perhaps, but I don't plan to fly an actual plane. I'd prefer a full-motion simulator if given the choice. Simulators don't crash. Then obviously you are on the wrong newsgroup... Perhaps you should go to comp.pc.ibm.pc.games.flight-sim or rec.aviation.simulators and leave this group for real pilots... |
#362
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Why don't voice radio communications use FM?
Emily wrote:
Whatever. I'm done with you. I can only hope everyone else gives up as well. That line about not trying to teach a pig to sing comes to mind... |
#363
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Why don't voice radio communications use FM?
Thomas Borchert writes:
How in the world would you know? Many pilots who use it have told me so. -- Transpose mxsmanic and gmail to reach me by e-mail. |
#364
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Why don't voice radio communications use FM?
RK Henry writes:
In one common exercise, referred to as Recovery from Unusual Attitudes, the instructor, or eventually a FAA-designated pilot examiner, will ask the hooded student to look down or conceal his eyes. With the student unable to see what is going on, the instructor will take the airplane through a series of maneuvers calculated to disrupt the student's inner ear equilibrium. Once that has been accomplished, the student is asked to look at the instruments and take over control the airplane. Immediately, the student will notice that the airplane's attitude is seriously out of whack. He has to recognize what's wrong and fix it. The challenge is complicated by the fact that the previous maneuvering has given rise to inner ear equilibrium sensations that conflict with the instruments. He may level the wings but still have a sensation that the airplane is continuing to roll. He may bring the nose to the horizon but experience a sensation that the airplane is continuing to pitch up or down. But isn't it simply a matter of looking at the instruments and doing what they say? Surely a person should be able to override distracting sensations and trust the instruments, especially when he knows that they are reliable. You just have to learn to ignore the sensation through sheer mental willpower. And you say that there's a lot of variation in this? Does it actually prevent some people from becoming pilots? It seems straightforward, even if it requires willpower. The thing is, the instruments should be trusted over the sensations of the inner ear, but they can't be trusted completely. Another facet of instrument training is understanding the limitations of the instruments. One example is precession errors. All gyroscopic instruments exhibit this behavior to some extent. You may roll into an intensive series of maneuvers and after rolling level may discover that the attitude gyro no longer indicates "up." It's slightly tilted. From the other instruments, you deduce that it's the AI that is wrong and that the airplane is actually level. Which other instruments will tell you this? Similarly, most of us fly airplanes in which we have to reset the directional gyro regularly to keep it in agreement with the magnetic whiskey compass. Otherwise it eventually drifts off to indicate some heading that has little basis in reality. But doesn't the compass drift as well? And then sometimes the instruments perversely decide to fail. During instrument training, expect the instructor to pull out a piece of paper, or a suction cup thingy, to cover one, or more, or maybe even all of the instruments. Then instead of looking at the attitude gyro, you're deducing the state of your airplane based on what's left, including airspeed, changes in altitude, and maybe even just sound. You'll then be asked to perform some maneuvers to demonstrate your ability to compensate for the lost information. So you are expected to trust instruments, but then not to trust them? If two different instruments indicate two different things, how do you know which one to trust? There isn't always a third instrument to break the tie. I suppose I could deduce that I don't have the wings level from a turn indicator or my changing heading, but how do I know that it's not the heading that is changing inappropriately, or the turn indicator that's broken? Instrument flying doesn't come from the instrument panel, it comes from between the pilot's ears. It's a mental process, which is why so many people seem to find it so difficult. It isn't about making the instruments do something, it's about making the airplane do something. It's about challenging the forces of nature and prevailing, and celebrating your triumph with your beverage of choice at some pleasant spot hundreds of miles from where you started. It's about seeing and doing things you've never done before. I don't think instrument flight would pose a problem for me. I think VFR would be more difficult, as I have virtually no experience with looking out the window and none with motion, and I'm not very coordinated. -- Transpose mxsmanic and gmail to reach me by e-mail. |
#365
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Why don't voice radio communications use FM?
Mxsmanic,
Your comments show utter cluelessness about instrument flying, I'm afraid. It would help you if you understood how little you know about IFR flying. But isn't it simply a matter of looking at the instruments and doing what they say? Surely a person should be able to override distracting sensations and trust the instruments, especially when he knows that they are reliable. "Knowing" is not all a human reacts to. "Surely" persons are NOT able to override those sensations without ample training. This fundamental difference between simulation and the real thing has been pointed out to you many times before in this thread. So far, you chose to ignore that. You just have to learn to ignore the sensation through sheer mental willpower. And you say that there's a lot of variation in this? Does it actually prevent some people from becoming pilots? It seems straightforward, even if it requires willpower. Go try it. Which other instruments will tell you this? Turn and bank indicator, DG, compass. But doesn't the compass drift as well? No. Why would it? So you are expected to trust instruments, but then not to trust them? You're expected to corroborate one instrument's indications against the others. If two different instruments indicate two different things, how do you know which one to trust? There isn't always a third instrument to break the tie. Yes, there is. Read a book on instrument flying. I suppose I could deduce that I don't have the wings level from a turn indicator or my changing heading, but how do I know that it's not the heading that is changing inappropriately, or the turn indicator that's broken? Understand failure modes - and then it will all be easy. I don't think instrument flight would pose a problem for me. Your hubris is simply amazing! All that you have written before this sentence shows a total lack of the essentials of instrument flight! Have you really come here to learn something or just to annoy others by showing your ignorance? How old are you? -- Thomas Borchert (EDDH) |
#366
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Why don't voice radio communications use FM?
On Mon, 11 Sep 2006 21:08:48 +0200, Mxsmanic
wrote: RK Henry writes: The thing is, the instruments should be trusted over the sensations of the inner ear, but they can't be trusted completely. Another facet of instrument training is understanding the limitations of the instruments. One example is precession errors. All gyroscopic instruments exhibit this behavior to some extent. You may roll into an intensive series of maneuvers and after rolling level may discover that the attitude gyro no longer indicates "up." It's slightly tilted. From the other instruments, you deduce that it's the AI that is wrong and that the airplane is actually level. Which other instruments will tell you this? If you're honestly interested in learning, I think the best book I could recommend is the FAA's publication "Instrument Flying Handbook." Some may disagree with me, but I think it's an excellent text. I bought mine years ago from the Government Printing Office, but I notice that it can now be downloaded in PDF format. http://www.faa.gov/library/manuals/a...ying_handbook/ This weighty tome covers most of the questions you've been asking and even the armchair aviator ought to find it interesting reading. It might even stimulate interest in investigating the subject further. I don't think instrument flight would pose a problem for me. I think VFR would be more difficult, as I have virtually no experience with looking out the window and none with motion, and I'm not very coordinated. There's really only one way to find out for sure. You might surprise yourself. Challenging one's preconceptions often does that. RK Henry |
#367
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Why don't voice radio communications use FM?
Grumman-581 wrote:
Then obviously you are on the wrong newsgroup... Perhaps you should go to comp.pc.ibm.pc.games.flight-sim or rec.aviation.simulators and leave this group for real pilots... He's already there, too. -- Peter |
#368
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Why don't voice radio communications use FM?
Peter R. wrote:
Grumman-581 wrote: Then obviously you are on the wrong newsgroup... Perhaps you should go to comp.pc.ibm.pc.games.flight-sim or rec.aviation.simulators and leave this group for real pilots... He's already there, too. Can he stay there? |
#369
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Why don't voice radio communications use FM?
Thomas Borchert writes:
No. Why would it? Because of the way a compass is mounted, it will briefly tend to continue moving after a turn. -- Transpose mxsmanic and gmail to reach me by e-mail. |
#370
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Why don't voice radio communications use FM?
Emily wrote:
Can he stay there? Ha! 'fraid not. We are all in a Wild West of sorts here and the sheriff doesn't have much authority. -- Peter |
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