shuyung wrote:
Similar licenses for similar usages should be similarly rigorous. If they are not, then perhaps they fail a similarity check.
Gee, you think? Tautology isn't much of an argument.
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If we posit that the main reason for both a driver's license and a pilot's license is to validate the capacity for safe operation, then both of these licenses should be tested similarly. A pilot's license requires much more in the way of proof of competence than a driver's license. The hours of flight observed by a certified instructor, takeoff and landing in daytime and nighttime conditions, instrumentation flight, etc., all indicate that the criteria for a pilot's license is in place to test the competence of a pilot for safe flight. A driver's license, meanwhile, does not test for generally prevalent road conditions. There is no requirement for nighttime driving, highway driving, gridlock driving, etc. I seem to recall from stories told to me by pilots in the past that recovering a stall was something they had to learn. I do not recall any practice on recovering a skid for driving. The most common plane in the air is the Cessna 172. It has a max takeoff weight of 2,450 lbs. The most common vehicle on the road through mid-2008 was the full-size pickup. The curb weight of a Ford F-series, as an example, is 4,743 lbs. The max payload is higher. Since mid-2008, the most common vehicle on the road is the Toyota Camry, with a curb weight of 3,373 lbs. Your claim that flying is more intrinsically difficult than driving would need some corroboration. The motor skills involved are similar. Basically, there is a control yoke, throttle, and some instrumentation in both cases. Further, from a plane, it is much more likely to crash where nothing is, than where something is.
You've got to be kidding me. You think that the weight of the most common aircraft and most common car somehow demonstrate that flight and driving are similar?
Ok, first, the motor skills needed for flight are greater simply by virtue of its 3 dimensional nature (and no, the fact that the ground is not perfectly flat does not disprove this; there is no freedom of moement in the 3rd dimension while drivng on the ground). Then there's navigation, which is more complex and requires different skills since you ren't confined to strips of pavement and don't ahve nice aids like road signs. Then there's the fact that the instrumentation of even a simple plane like a Cessna is significantly more complex than that of a car:
Cessna 172 dashboardToyota Camry dashboardYeah, those are completely similar! Where did I ever get the idea that one was more complex than the other?
Then of course there's the significantly greater effect of weather and visibility on flight, especially for a VFR airplane like a Cessna, and of course the little matter of airplanes setting off NORAD warnings as opposed to simply the local police department when they start doing things they shouldn't, and NORAD sends jet fighters carrying missiles and cannons as opposed to cops carrying pistols and rifles. I needn't remind you why either; there was an incident about 8 years ago I'm sure you're aware of, and there have been incidents since, such as the kid flying the Cessna 172 that wanted to get shot down as a way to commit suicide and almost did. How much do you suppose it cost to intercept him? The incident is on the Cessna 172 page at Wikipedia.
Then there's all this nonsense about weight. You completely ignored speed, of course, and not just the difference in speed between a Cessna which flies around 100-120 mph versus that Ford F150 that cruises at 60-70 mph (need I remind you that E=mv^2), but alsot he fact that the fastest vehicles on the road have a maximum possible speed of around 190mph, or less than 3 times that of a Ford F-150, and reaching that speed is very rare, while Cessnas are often in the air and sharing airports with aircraft that cruise at more than 4 times their speed, and can mass as much as 900,000 pounds for a 747, or over 360 times that of a Cessna. How much does a tractor trailer outweigh a Ford F150? Even a smaller jetliner like a 737 can weigh in at about 180,000 pounds at takeoff, or about 70 times what a Cessna does. How frequently do we find trucks outweighing a Cessna by 70 times? Not frequently; even if it's hauling a main battle tank, and oh by the way that 737 can easily exceed the Cessna's speed by a factor of 3-4, and while Cessnas may be the most common airplane owned, small recreational aircraft are not necessarily operated int he same proportion to airliners as passanger cars and trucks are to tractor trailors, since few people fly to work every day but huge numebrs drive, while both the truck and the airliner must operte to make profit.
As to skids, stalls and accidents, a skid in a car may or may not result in an accident and that accident may or may not be serious, but a stall uncorrected in an aircraft will definitely result in an accident, and it will almost always be serious. Indeed, stalls and accidents in aviation in general occur most frequently during takeoff and landing where the pilot has little altitude and therefore time to recover, and where other aircraft and hazardous materials are very likely to be present.
Seriously, the argument that flight is similar to driving and should ahve similar license requirements is spurious, and based only on the most trivial similarities which you cited. It's patently absurd, as is your assertion that a commercial truck driver could just as easily land an airplance. He might be equally able to learn basic VFR landing, but backing up a trailer is completely different from landing an airplane.
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Also, I do not intend to target my writing to the lowest common denominator. If this causes you a problem, there are worse things that can happen to you than needing to refer to a dictionary.
Interesting that you define making your paragraph clear and giving it an understandable point "writing to the lowest common denominator".
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So if an accident is only that which causes damage to one or more people, what is the ratio of reported accidents causing damage to 1 person vs. multiple people? And are your accident numbers from police reports or insurance claims?
Since it isn't pertinent to my argument, I don't intend to go looking. Wh don't you find it for yourself?
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And your knowledge of computer accidents comes from?
Gee, maybe from the fact that I use a computer daily and the worst accident I ever had was a raid wipe? Maybe the fact that I never see reports about computer accidents on the news, or hear about them anecdotally? Come on, people have accidents all the time where they click the wrong thing. They aren't serious enough to be newsworthy, much less merit regulation.
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http://en.wikipedia.org/wiki/Slashdot_effectWhat it boils down to is that there are many sites on the internet that are knocked offline or seriously degraded by a sudden influx of traffic resulting from a popular site directing traffic to it. This traffic direction is unforeseen by the owners of the target site, because much like you they have no idea that the Slashdot Effect exists. This influx can cause financial harm, for instance when the site is relying on sales through it, or perhaps when the service provider bills at increased rates for the traffic.
Allowing for the fact that links don't get created accidentally (although vertainly someone might link without understanding the issues involved with this effect) now it'd be nice to see how this accident is in any way comparable to vehicle accidents.
A little over 41,000 traffic fatalities in 2007, and just under 2.5 million injuries injuries. How many fatalities and injuries fromt he slashdot effect? Ever?
Really, I have no idea where you're going with any of this. Are you trying to show that computers are as dangerous vehicles? That vehicles are as dangerous as airplanes? That all are equally dangerous? That driver's license requirements are too easy or too hard? Or that pilots' licenses are? Or that computers should require the same licensing as airplanes?
I don't know what you're trying to show, but since it appears to have something to do with airplanes and/or computers and vehicles being somehow similar in terms of danger, I'm not seeing much evidence for it. You've made spurious assertions and guesses about stalls, weights, controls, and the difficulty of alnding but they don't hold up to much scrutiny.