wings

"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

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).

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

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...."

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

mark wrote in message ...
does anybody know which side of the wing gets the lift.

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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

"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

"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

(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