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#31
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![]() "Blueskies" wrote in message et... "Bill Daniels" bildan@comcast-dot-net wrote in message . .. 5 hour glider flight off a $5 winch launch? Where are you and how long is the winch line? A winch will launch a glider to about half the length of the winch line. The winch launch gets you high enough to catch thermals. Then, in the western US, you soar to 18,000. 5 hours can be conservative. Some flights last over 10 hours. In Germany, they are winch launching gliders almost a mile straight up so they can practice aerobatics. Beside being cheap, winch launches are a hoot. Think zero to sixty in less than 3 seconds and then a 45 degree climb at 3000 - 5000 FPM. If you want video, http://www.youtube.com/watch?v=wbRBiPuTjYQ (Somewhat nervious passerger.) Girlfriend gets a ride: http://www.youtube.com/watch?v=wttC39IZ9P4 and: http://www.youtube.com/watch?v=wttC39IZ9P4 I'm not German nor do I speak it - they just make the best videos. Bill Daniels I know Torry Pines will (or used to) launch you right over the cliffs so you could ridge soar, but I am now in MI, and it would take a pretty long winch to get high enough to fly around for 5 hours... Torrey Pines still operates a few weekends in the Spring. Michigan would be tough. However, I'm told there are thermals there - sometimes good ones. Today, most winch operations soar with thermals and not ridge lift although nobody would turn down ridge lift. Once you contact thermal lift, you can usually count on several hours of flight. From looking at several aero tow operations, most tows are to less then 2500 feet AGL. Winches can easilly match that at much lower cost. Bill Daniels |
#32
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On Fri, 29 Jun 2007 00:18:07 GMT, "Blueskies"
wrote: "Bill Daniels" bildan@comcast-dot-net wrote in message . .. 5 hour glider flight off a $5 winch launch? Where are you and how long is the winch line? A winch will launch a glider to about half the length of the winch line. The winch launch gets you high enough to catch thermals. Then, in the western US, you soar to 18,000. 5 hours can be conservative. Some flights last over 10 hours. In Germany, they are winch launching gliders almost a mile straight up so they can practice aerobatics. Beside being cheap, winch launches are a hoot. Think zero to sixty in less than 3 seconds and then a 45 degree climb at 3000 - 5000 FPM. If you want video, http://www.youtube.com/watch?v=wbRBiPuTjYQ (Somewhat nervious passerger.) Girlfriend gets a ride: http://www.youtube.com/watch?v=wttC39IZ9P4 and: http://www.youtube.com/watch?v=wttC39IZ9P4 I'm not German nor do I speak it - they just make the best videos. Bill Daniels I know Torry Pines will (or used to) launch you right over the cliffs so you could ridge soar, but I am now in MI, and it would take a pretty long winch to get high enough to fly around for 5 hours... You just need the proper day. Go take a look at the land around MPL. It's flat for miles. They used a truck tow to launch two hand gliders that stayed alonft for something like 10 hours and as I recall they landed some where over in central Ontario. A week ago at 3BS we launched a sail plane (tow to 1000 feet, but 500 would have been suficient) he was up for about 45 minutes, but could have stayed up all afternoon. |
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On Thu, 28 Jun 2007 18:56:46 GMT, cavelamb himself
wrote: snip “Just as the events of 9-11 changed how we guard our cities and protect ourselves, a new generation of ethanol may soon change the way we gas up our cars and protect the earth.” - Dateline NBC "Our plan to expand into ethanol production has the potential to generate significant profits and increased shareholder values," JT Cloud, CEO of Gulf Ethanol. That it does. snip Factors Driving Alternative Energy Investments * FREEDOM FROM FOREIGN OIL: Ethanol could free America from its reluctant dependence on foreign oil. This is not a pipedream, conjured it's doubtful we could make enough alcohol from corn to make more than a small dent.However using all sources we probably could and becoming independent of foreign oil is very important. It's also going to be expensive. up by some pro-U.S. idealists. Not at all. Brazil has turned that vision into reality, where 70% of the vehicles in that country are sustained on They are missing something very important here. Not all alcohol is created equal, or rather at the same cost. The Key is Brazil does not make alcohol from corn. They make it from sugar cane with has a much higher yield than corn and costs far less to produce. Even with the most optimistic approach providing alcohol from corn in the best possible light at the lowest possible price, Brazilian alcohol would still cost only a fraction of what it would cost us to produce corn alcohol. ethanol. Brazil's ethanol plan has successfully replaced imported oil worth an estimated $120 billion. To put it into perspective, this would translate to a savings of about $2 trillion for an economy equivalent in size to the U.S. How would it save anything for the consumer? The only thing it would affect is the balance of payments or trade deficit IOW. Made from corn the alcohol and gas containing it will cost more than straight gas made from crude. Rephrased, moving to E85 or straight alcohol is going to cost more, not less.Given that we are replacing something with something else that costs more there is a problem with some one's math. The bottom line is the true cost of E85 and straight alcohol is more expensive than the most expensive gas we've seen so far. Add to that it only has 60% of the energy available of straight gas. So it costs more and it takes more of it. * INCREASED INCOME TO U.S. FARMERS: In terms of economics, there is no clearer choice for the American public. It would mean higher farm Yes it would mean higher farm income and that is something the smaller farmers really do need. incomes and we would see a steep increase in rural employment. Depends on what they mean by rural employment. It certainly would not translate to much of an increase in the number of farm workers. It would mean more workers in the alcohol industry and fewer in the petroleum industry. I don't see any where it would bring a steep increase in "rural" employment. Switching land from another crop to corn isn't going to require more labor either. * THE TECHNOLOGY’S IN PLACE NOW: The technology to run cars on ethanol already exists. General Motors alone has built more than 1.5 million ethanol-compliant vehicles. The technology to produce the alcohol is in place, but the ability to do so is not, at least as far as alcohol produced by corn in quantities large enough to make much of a difference. Alcohol from corn will have to be supplemented by alcohol from other sources which will probably be capable of producing more alcohol at less cost than that from corn, or at least eventually will be capable of doing so. That means the use of corn for alcohol would not be nearly so attractive unless artificially supported. According to a recent AP story most of those "flex fuel" vehicles are not designed to run long term on E85 or straight alcohol. * IT’S RIDING THE “GREEN WAVE”: And let’s not ignore the fact that ethanol is believed to be much more environmentally friendly than our That is true. current petroleum. Many experts agree that a switch from gasoline to ethanol could significantly reduce our carbon dioxide emissions, some say by as much as 80%. Ethanol’s appeal extends throughout interest It wouldn't really reduce the emissions from the cars, but what it would do is be releasing CO2 than had been taken from the atmosphere during the growing of the crop so it would not be adding *any* new CO2. They are confusing emissions with "additional CO2 to the atmosphere" and that is much more than just semantics. Ethanol is (as far as we currently know) more environmentally friendly to burn than gas. There are some outstanding questions, but in general it is thought to be far better for the environment than gas. groups. The U.S. government, American car manufacturers, environmentalists and the agriculture industry are all strong supporters of this alternative fuel. |
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On Thu, 28 Jun 2007 04:56:04 -0700, Denny wrote:
It is hopeless alright... Not to worry! The coming market correction will render large segments of the population incapable of buying gasohol... That alone will reduce our energy imbalance there is always a silver lining... Man, you're about as pessimistic as my doctor! :-)) You must be related. denny |
#35
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Not only that, but you get Black's Beach at no additional cost.
Jim -- "Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, with chocolate in one hand and wine in the other, loudly proclaiming 'WOO HOO What a Ride!'" --Unknown Blueskies" wrote in message et... I know Torry Pines will (or used to) launch you right over the cliffs so you could ridge soar, but I am now in MI, and it would take a pretty long winch to get high enough to fly around for 5 hours... |
#36
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Roger, an unsolved issue with alcohol is that smog is produced... I
have not done the reading to see what the solution to that is likely some form of catalytic convertor so I'm not going to claim it is a deal breaker, but it is significant... For the ethanol lovers, I am not against ethanol just against muddy thinking... TO get ethanol for vehicles you: *haul seed and supplies *plow *spray pesticides and herbicides *fertilize *plant grow awhile *knife in nitrogen grow a bit more *herbicides / pesticides again grow awhile more *harvest *haul ferment *distill *haul it again mix with gasoline, or whatever hybrid fuel you make *haul it again and finally pump it onto your vehicle Every step that has an asterisk uses fuel or chemicals or fertilizer dependent upon petroleum... The fuel of your grandchildren will be a hydrocarbon product made from coal, not corn... denny |
#37
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On Fri, 29 Jun 2007 04:28:15 -0700, Denny wrote:
Roger, an unsolved issue with alcohol is that smog is produced... I have not done the reading to see what the solution to that is likely some form of catalytic convertor so I'm not going to claim it is a deal breaker, but it is significant... My understanding is it is a great Ozone producer. I'm not sure how that works our chemically...chem 111 and 112 were a long way back. So as with the new energy efficient light bulbs which contain mercury we are exchanging one pollution problem for another. For the ethanol lovers, I am not against ethanol just against muddy thinking... TO get ethanol for vehicles you: *haul seed and supplies *plow Don't forget, disk, pack, and drag *spray pesticides and herbicides *fertilize *plant grow awhile *knife in nitrogen Don't forget cultivating. grow a bit more *herbicides / pesticides again grow awhile more Corn takes a lot out of the land. or rephrased, it's depletes the soil and its success depends on a very narrow range of growing conditions. *harvest *haul ferment Several handling/separation/pumping steps *distill *haul it again mix with gasoline, or whatever hybrid fuel you make *haul it again and finally pump it onto your vehicle Every step that has an asterisk uses fuel or chemicals or fertilizer dependent upon petroleum... The fuel of your grandchildren will be a hydrocarbon product made from coal, not corn... For the optimistic, the current "net energy gain" for corn alcohol _in-a-*good*_growing_year is about 33%. that means for the equivalent of every two gallons invested we get 2.66 gallons out. Or IOW we gained a whole 2/3 of a gallon. So we have a 33% gain, but that doesn't take into account labor. When labor is added in the true price of that corn alcohol is astronomical whether we pay for it directly at the pump, or through subsidies to the grower and processor. denny |
#38
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RST Engineering wrote:
Not only that, but you get Black's Beach at no additional cost. Jim Big Grin You got that right, Jim! |
#39
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Roger,
Most of the corn grown today is no-til. Some areas still plow due to soil type or continuous corn crops, maybe you live in one of those areas. Under no-til, it's fertilize, spray, plant, maybe apply more nitrogen, and harvest. Plowing is very expensive and most farmers avoid it. No-til usually does better anyway. The main fertilizer corn uses is nitrogen and most of that production has shifted to areas where they have natural gas as a by-product of oil production, but no pipe line or LNG to ship it. Otherwise it would have been burned off or in some cases pumped back in the oil well to help maintain pressure. I'm not sure all of that should be counted in the energy equation. As for the labor part, I don't understand your point. The farmer will still be around if he stops producing corn. He could idle his equipment and land, get a desk job saving energy and other energy inputs, but he is still going to use energy to live. I also don't think the farmer's personal energy consumption should be counted in the conversion. One other big energy input you did miss is irrigation, but very little corn is grown under irrigation. wrote in message news ![]() On Fri, 29 Jun 2007 04:28:15 -0700, Denny wrote: Roger, an unsolved issue with alcohol is that smog is produced... I have not done the reading to see what the solution to that is likely some form of catalytic convertor so I'm not going to claim it is a deal breaker, but it is significant... My understanding is it is a great Ozone producer. I'm not sure how that works our chemically...chem 111 and 112 were a long way back. So as with the new energy efficient light bulbs which contain mercury we are exchanging one pollution problem for another. For the ethanol lovers, I am not against ethanol just against muddy thinking... TO get ethanol for vehicles you: *haul seed and supplies *plow Don't forget, disk, pack, and drag *spray pesticides and herbicides *fertilize *plant grow awhile *knife in nitrogen Don't forget cultivating. grow a bit more *herbicides / pesticides again grow awhile more Corn takes a lot out of the land. or rephrased, it's depletes the soil and its success depends on a very narrow range of growing conditions. *harvest *haul ferment Several handling/separation/pumping steps *distill *haul it again mix with gasoline, or whatever hybrid fuel you make *haul it again and finally pump it onto your vehicle Every step that has an asterisk uses fuel or chemicals or fertilizer dependent upon petroleum... The fuel of your grandchildren will be a hydrocarbon product made from coal, not corn... For the optimistic, the current "net energy gain" for corn alcohol _in-a-*good*_growing_year is about 33%. that means for the equivalent of every two gallons invested we get 2.66 gallons out. Or IOW we gained a whole 2/3 of a gallon. So we have a 33% gain, but that doesn't take into account labor. When labor is added in the true price of that corn alcohol is astronomical whether we pay for it directly at the pump, or through subsidies to the grower and processor. denny |
#40
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![]() "Roger (K8RI)" wrote in message ... On Thu, 28 Jun 2007 18:56:46 GMT, cavelamb himself wrote: snip "Just as the events of 9-11 changed how we guard our cities and protect ourselves, a new generation of ethanol may soon change the way we gas up our cars and protect the earth." - Dateline NBC "Our plan to expand into ethanol production has the potential to generate significant profits and increased shareholder values," JT Cloud, CEO of Gulf Ethanol. That it does. snip Factors Driving Alternative Energy Investments * FREEDOM FROM FOREIGN OIL: Ethanol could free America from its reluctant dependence on foreign oil. This is not a pipedream, conjured it's doubtful we could make enough alcohol from corn to make more than a small dent.However using all sources we probably could and becoming independent of foreign oil is very important. It's also going to be expensive. Here is a reply I received back from our Senator here in Michigan: "Thank you . . . . . for contacting me about your opposition to the use of ethanol as fuel. I appreciate hearing your views. I understand your concern that the increased use of corn fuel could contribute to higher corn prices. Corn ethanol is a first step as we transition into cellulosic ethanol technology, which does not use corn, only agricultural waste products, and converts them into fuel. Ethanol is an important piece of the energy puzzle to improve national security; however I recognize that it will not single-handedly replace gasoline. Congress will tackle these energy questions when it works on the new farm bill this year, as well as other energy legislation. I will keep your views in mind when the Senate takes up legislation related to alternative fuels. Again, thank you for contacting me. Please do not hesitate to do so again if I can be of assistance to you or your family. Sincerely, Debbie Stabenow United States Senator DS: il " |
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