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#11
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"Malcolm Teas" wrote in message
om... Both sides are necessary. Single surface winds, only found in Ultralights now I think, are much less effective in creating life, and they create more drag too. There's basically two theories about life creation, both of which describe part of what's happening. 42. The answer to Life, the Universe and Everything. All you need to know about Life Creation. Taking out the typos, I can't say I've ever seen a single surface wing. Every one I've seen has a top and bottom to it. Paul |
#12
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Malcolm Teas wrote:
Both sides are necessary. Single surface winds,(wings?) only found in Ultralights now I think, are much less effective in creating life, and they create more drag too. They definitely create more life. They also create more lift at lower airspeeds. I fly a Tierra TA that is quite happy at an indicated Hall airspeed of 18 mph. My Sunburst with the same wing area and a double surface wing needs about 28 to maintain flight. They both create a LOT of life for me. Really low and slow I take the TA, for a slightly quicker tour I use the Sunburst. AHHh, life at 40(mph). |
#14
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Paul Sengupta wrote: Taking out the typos, I can't say I've ever seen a single surface wing. Every one I've seen has a top and bottom to it. You've never seen a Mobius wing? George Patterson Great discoveries are not announced with "Eureka!". What's usually said is "Hummmmm... That's interesting...." |
#15
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This has got to be the funniest post I have ever seen. If these typos were
really unintentional, this is hilarious. If they were intentional, then you are one funny guy!! "Malcolm Teas" wrote in message om... Both sides are necessary. Single surface winds, only found in Ultralights now I think, are much less effective in creating life, and they create more drag too. There's basically two theories about life creation, both of which describe part of what's happening. Bernoulli's theory .... Yes, I'm simplifying Simplifying!? You are discussing the very essence of us all. You are explaining the fundamentals of life giving wind and the creation of life. These theories are of great importance to us all. At their simplest, they have confounded man for eons! Of course, since Bernoulli's theory describes creating life, that explains why the mile-high club is so popular. This is a topic which comes up regularly in this group. Most are tired of it and simply refer you to other sources .... -Malcolm Teas Regularly? I have never known this group to get deeply philosophical about anything but airplanes. (arguing about which uninformed news caster is more wrong doesn't count). -- ------------------------------- Travis |
#16
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mark wrote in message ...
does anybody know which side of the wing gets the lift. *** Sent via http://www.automationtools.com *** Add a newsgroup interface to your website today. By turning the airflow the wing at an Angle of Attack create Lift, wingtipvortices and downwash! http://www.lerc.nasa.gov/www/K-12/airplane/right2.html http://www.aa.washington.edu/faculty/eberhardt/lift.htm Jan-Olov Newborg |
#17
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"G.R. Patterson III" wrote in message
... Paul Sengupta wrote: Taking out the typos, I can't say I've ever seen a single surface wing. Every one I've seen has a top and bottom to it. You've never seen a Mobius wing? Can't say I've ever landed at a Mobius strip either. Paul |
#18
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"Travis Marlatte" wrote in message hlink.net...
This has got to be the funniest post I have ever seen. If these typos were really unintentional, this is hilarious. If they were intentional, then you are one funny guy!! Man I wish I'd thought of it. But no, this was just a lucky unintentional typo because I'm a lousy proofreader. Subconciously I suppose I think that we're not really living unless we're up there generating lift. Well, in my feeble defense, at least I spelled things correctly, got the grammar correct, and the case of the words too. Now to work on the content! -Malcolm Teas |
#19
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(Gene Seibel) wrote in message om...
Creation of life is a whole 'nother newsgroup. -- Gene Seibel Hangar 131 - http://pad39a.com/gene/plane.html Because I fly, I envy no one. (Malcolm Teas) wrote in message . com... mark wrote in message ... does anybody know which side of the wing gets the lift. Mark, Both sides are necessary. Single surface winds, only found in Ultralights now I think, are much less effective in creating life, and they create more drag too. There's basically two theories about life creation, both of which describe part of what's happening. Bernoulli's theory says that air speeded up lowers it's pressure. I.e. there's a fixed amount of energy at any given time. It either goes into speed or pressure. The low pressure air is on the top of the wing. Yes, I'm simplifying greatly, there are much more detailed analysis available online and in aeronautical engineering books. The air from the top also is accelerated down after the wing passes due to the shape of the wing and the air following it. The other theory is that the air bounces off the bottom of the wing to push the wing up. (I'm cringing as I write this as I'm simplifying and dropping out so much). The air also follows this surface and also can be accelerated down as above. Basically, the wing works by having a shape that pushes air down, and thus the wing up. It does this with both the bottom and the top of the wing. Both surfaces are necessary and have different shapes for different speed airplanes. There's a picture I remember of a small jet flying just above a cloud layer in clear air. The air pushed downward was very visible as it caused an airplane-width trough in the cloud layer below. This is a topic which comes up regularly in this group. Most are tired of it and simply refer you to other sources as there's plent of information out there. One source I like is: http://www.av8n.com/how/. Libraries are useful too. -Malcolm Teas Here is a new article written by a CFD expert: http://ej.iop.org/links/q42/RBzslMel.../pe3_6_001.pdf Jan-Olov Newborg |
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