Messages in AirborneWindEnergy group.                          AWES2333to2382 Page 27 of 79.

Group: AirborneWindEnergy Message: 2333 From: Hardensoft International Limited Date: 10/12/2010
Subject: News Release: Russia AWEIA Team Leader

Group: AirborneWindEnergy Message: 2334 From: Dan Date: 10/12/2010
Subject: Re: News Release: Russia AWEIA Team Leader

Group: AirborneWindEnergy Message: 2335 From: Joe Faust Date: 10/12/2010
Subject: Our online group composing tools

Group: AirborneWindEnergy Message: 2336 From: snapscan_snapscan Date: 10/12/2010
Subject: Re: Flying a hang-glider like a kite - manned kites?

Group: AirborneWindEnergy Message: 2337 From: Uwe Fechner Date: 10/12/2010
Subject: AWECs Conference Presentations now online

Group: AirborneWindEnergy Message: 2338 From: Joe Faust Date: 10/12/2010
Subject: Opportunity in AWE Glossary !

Group: AirborneWindEnergy Message: 2339 From: Joe Faust Date: 10/13/2010
Subject: Jun Zhang's open lab

Group: AirborneWindEnergy Message: 2340 From: Doug Date: 10/13/2010
Subject: Re: Flying a hang-glider like a kite - manned kites?

Group: AirborneWindEnergy Message: 2341 From: Grant Calverley Date: 10/13/2010
Subject: Re: Flying a hang-glider like a kite - manned kites?

Group: AirborneWindEnergy Message: 2342 From: dave santos Date: 10/13/2010
Subject: Re: Flying a hang-glider like a kite - manned kites?

Group: AirborneWindEnergy Message: 2343 From: Joe Faust Date: 10/14/2010
Subject: Today's AWE-some Gem: ___(gem)____

Group: AirborneWindEnergy Message: 2344 From: Doug Date: 10/14/2010
Subject: Re: Flying a hang-glider like a kite - manned kites?

Group: AirborneWindEnergy Message: 2345 From: dave santos Date: 10/14/2010
Subject: Re: Flying a hang-glider like a kite - manned kites?

Group: AirborneWindEnergy Message: 2346 From: Bob Stuart Date: 10/14/2010
Subject: Re: Flying a hang-glider like a kite - manned kites?

Group: AirborneWindEnergy Message: 2347 From: Joe Faust Date: 10/14/2010
Subject: Tail Turbines

Group: AirborneWindEnergy Message: 2348 From: dave santos Date: 10/14/2010
Subject: Re: Flying a hang-glider like a kite

Group: AirborneWindEnergy Message: 2349 From: Joe Faust Date: 10/14/2010
Subject: The RAT is so close ...

Group: AirborneWindEnergy Message: 2350 From: Hardensoft International Limited Date: 10/15/2010
Subject: Press Release: Wayne German Award for Contributions to Airborne Wind

Group: AirborneWindEnergy Message: 2351 From: Dan Parker Date: 10/15/2010
Subject: Re: Press Release: Wayne German Award for Contributions to Airborne

Group: AirborneWindEnergy Message: 2352 From: Joe Faust Date: 10/15/2010
Subject: Speech! Speech! : )

Group: AirborneWindEnergy Message: 2353 From: Pierre BENHAIEM Date: 10/15/2010
Subject: Re: Press Release: Wayne German Award for Contributions to Airborne

Group: AirborneWindEnergy Message: 2354 From: Muzhichkov Date: 10/15/2010
Subject: Re: Press Release: Wayne German Award for Contributions to Airborne

Group: AirborneWindEnergy Message: 2355 From: Pierre Benhaiem Date: 10/16/2010
Subject: Manual Flygen,more explicit video

Group: AirborneWindEnergy Message: 2356 From: dimitri.cherny Date: 10/16/2010
Subject: Re: Manual Flygen,more explicit video

Group: AirborneWindEnergy Message: 2357 From: dave santos Date: 10/17/2010
Subject: High School Used Toy Kites for Kite Altitude Record

Group: AirborneWindEnergy Message: 2358 From: Doug Date: 10/17/2010
Subject: Re: Manual Flygen,more explicit video

Group: AirborneWindEnergy Message: 2359 From: Doug Date: 10/18/2010
Subject: Re: High School Used Toy Kites for Kite Altitude Record

Group: AirborneWindEnergy Message: 2360 From: dave santos Date: 10/18/2010
Subject: Re: High School Used Toy Kites for Kite Altitude Record

Group: AirborneWindEnergy Message: 2361 From: Joe Faust Date: 10/18/2010
Subject: Dynamic free-flight tether segment with kite at each end

Group: AirborneWindEnergy Message: 2362 From: Muzhichkov Date: 10/19/2010
Subject: Presentations

Group: AirborneWindEnergy Message: 2363 From: Joe Faust Date: 10/19/2010
Subject: Re: Presentations

Group: AirborneWindEnergy Message: 2364 From: Joe Faust Date: 10/19/2010
Subject: Re: Presentations

Group: AirborneWindEnergy Message: 2365 From: Joe Faust Date: 10/20/2010
Subject: Franklin FK Chen of Oakland, California

Group: AirborneWindEnergy Message: 2366 From: Joe Faust Date: 10/21/2010
Subject: Yes utility scale, but kiteskaters are people too!

Group: AirborneWindEnergy Message: 2367 From: Joe Faust Date: 10/21/2010
Subject: Re: a variable pitch H-Darrieus design

Group: AirborneWindEnergy Message: 2368 From: dave santos Date: 10/21/2010
Subject: Low Flying-Angle Mitigation

Group: AirborneWindEnergy Message: 2369 From: dave santos Date: 10/22/2010
Subject: Unsteady Aerodynamics as a Basis for AWE

Group: AirborneWindEnergy Message: 2370 From: dave santos Date: 10/22/2010
Subject: Fw: Re: Latest Tailed Wing-Mill Video

Group: AirborneWindEnergy Message: 2371 From: dimitri.cherny Date: 10/22/2010
Subject: Re: Low Flying-Angle Mitigation

Group: AirborneWindEnergy Message: 2372 From: dave santos Date: 10/22/2010
Subject: Re: Low Flying-Angle Mitigation

Group: AirborneWindEnergy Message: 2373 From: Joe Faust Date: 10/23/2010
Subject: Use liquids aloft interestingly in AWECS

Group: AirborneWindEnergy Message: 2374 From: Dan Parker Date: 10/23/2010
Subject: Re: Use liquids aloft interestingly in AWECS

Group: AirborneWindEnergy Message: 2375 From: Joe Faust Date: 10/23/2010
Subject: Re: Use liquids aloft interestingly in AWECS

Group: AirborneWindEnergy Message: 2376 From: Joe Faust Date: 10/23/2010
Subject: Re: Use liquids aloft interestingly in AWECS

Group: AirborneWindEnergy Message: 2377 From: Doug Date: 10/24/2010
Subject: Re: Use liquids aloft interestingly in AWECS

Group: AirborneWindEnergy Message: 2378 From: dave santos Date: 10/24/2010
Subject: The "Lost Thesis" Discovered

Group: AirborneWindEnergy Message: 2379 From: Joe Faust Date: 10/24/2010
Subject: Re: Use liquids aloft interestingly in AWECS

Group: AirborneWindEnergy Message: 2380 From: Joe Faust Date: 10/25/2010
Subject: Re: Use liquids aloft interestingly in AWECS

Group: AirborneWindEnergy Message: 2381 From: Joe Faust Date: 10/25/2010
Subject: Re: Use liquids aloft interestingly in AWECS

Group: AirborneWindEnergy Message: 2382 From: Joe Faust Date: 10/25/2010
Subject: Project HIGHWIND




Group: AirborneWindEnergy Message: 2333 From: Hardensoft International Limited Date: 10/12/2010
Subject: News Release: Russia AWEIA Team Leader

News Release  

Russia AWEIA team leader

Airborne Wind Energy Industry Association (AWEIA) International now has a team leader for Russia. We await other leaders in each nation to state their progress and leadership position.


Signed
John Oyebanji
President-protem, AWEIA - International
www.aweia.org


Group: AirborneWindEnergy Message: 2334 From: Dan Date: 10/12/2010
Subject: Re: News Release: Russia AWEIA Team Leader
Hi John,


Very nice'n simple.

Dan'l

Group: AirborneWindEnergy Message: 2335 From: Joe Faust Date: 10/12/2010
Subject: Our online group composing tools

 

About the following, a caution:  I recommend always composing in one's local files. Do checks. Then copy and paste into online compose tool, if wanted. The online tool can fail sometimes to reach Yahoo in a moment and the work to compose will be lost, as the form will time out sometimes or connection may be lost; and backing to former use of the form will not show one's good work.  So, having a local copy of one's work is a good things .   ")
 
Now to the online tool.
When a member is logged into the group AirborneWind Energy, the all the folders and tools are available.
Steps:
1. See on the left menu of a group page. See the link:   Post    Click it.
 
2. A page should open that allows composing a message.  However, near the top of the page one should see the following:
===========
 
    New! Compose your message with Rich-Text Editor.
To:   airbornewindenergy@yahoogroups.com
 
===========
3.
The text link:  Rich-Text Editor       is an option.  Click that before doing any composing (as the compositng in the first screen is plain-text composing).
 
4. Now we have the rich-text editor version open. This has tools that may change format.   A computer that does not operate with javascript would proably be prevented from using some of the tools, not sure.       Assuming one's computer allows use of the rich-text editor, we go now further.
 
5. Type ordinarily. But then one can format the text.   One of the icon tools allows forming hyperlink for text; a helper tiny window open where one puts a full URL for a web page to be reached by the link.
 
6. Now further on the page.     The composing field has a lefthand corner. Beneath that corner is a little checkbox.   [ ] View HTML source.
    Checked forces a view of the HTML source code for the message.     Unchecked returns the readers' view of the message.    Practice toggling that little box.  Work in the view wanted.
    When in the HTML source code view, one may cause insertion of phtographs (if host of photograph permits calling the photo ... our terms with Yahoo has us respect copyright). The source code tag to show a permitted phtograph:
<img src=""
Between the two quotation marks, put the absolute URL of the file that is the drawing or image wanted. Example:
<img src="http://www.wired.com/news/images/full/kitegen1_f.jpg"
<img src="http://EnergyKiteSystems.net/KiteGen/KiteGenCarousel333.jpg"
 
7. There is a preview button on the composing page.
8. Then finally there is the Send button.
 
9. 
Differently, without showing a copyrighted photo or drawing, one may place simply in the reader's view a full absolute URL
E.g., this cartoon:
 
Lift,
JoeF
The online Italian-language Yahoo! group  dedicated to KiteGen is open for free membership. Today they have 143 members and 1,050 posts, so far.  Join:  http://tech.groups.yahoo.com/group/kitegen/
Their files hold some items that may be roughly translated using Google Translate.    Exciting group, as KiteGen moves fast to large installation.
 
Group: AirborneWindEnergy Message: 2336 From: snapscan_snapscan Date: 10/12/2010
Subject: Re: Flying a hang-glider like a kite - manned kites?
Group: AirborneWindEnergy Message: 2337 From: Uwe Fechner Date: 10/12/2010
Subject: AWECs Conference Presentations now online
Hello,

you can find all of the presentations of the AWECs conference 2010 now here:

http://awec2010.com/public/presentations/

Of course I want to put special attention on our presentation:

http://awec2010.com/public/presentations/schmehl_roland.pdf

It is quite big (about 100 MB), but contains a lot of videos.
(Current acrobat reader needed to view them.)

Best regards:

Uwe Fechner
TU Delft

PS:
The team of Prof. Moritz Diehl (Leuven, Belgium) just received a grant
of more
than one million EUR for research on High Altitude Wind Power
control.
Group: AirborneWindEnergy Message: 2338 From: Joe Faust Date: 10/12/2010
Subject: Opportunity in AWE Glossary !

Over 400 AWE-interested persons have opportunity to add their interests through terms and paragraphs and links to the AWE Community glosssary.      One may add, correct, extend, illustrate, link ... on terms that best support your AWE tack.   For instance, what might you add to this entry (or correct it):

balanced kites      In AWECS, the having of more than one kite with an initial trunk tether while branched tether permit a variety of branching of working kite units stay in balance so that destructive interference does not occur during production of energy for useful works. The balance may be simplistic or very complex.  Scores of fighter kites have been balanced even though they have highly erratic motions.  The Roto-kite or Rotokite has soft balanced kites in rotational balance for yo-yo energy-production method.  Also, two kites balanced in timing for one going out while other depowered coming in are balanced smartly by controllers and kite-control units.  Rigid kiteplanes may be controlled for balance rotation branched from a single tether with turbines on the kiteplanes.  A doctoral student is revisiting in 2010 the challenges of AWE balanced kites: Reinhart Paelinck

That is on the page:    B             What terms and text have you added to our AWE Community Glossary?  

Group: AirborneWindEnergy Message: 2339 From: Joe Faust Date: 10/13/2010
Subject: Jun Zhang's open lab

http://physics.nyu.edu/jz11/gallery6.html

at Zhang's Lab

at NYU.

Germinal AWECS scientists?

Group: AirborneWindEnergy Message: 2340 From: Doug Date: 10/13/2010
Subject: Re: Flying a hang-glider like a kite - manned kites?
Thanks, but towing with cars or winches is not what I mean.
Let me ask again:
What about flying a hang-glider like a kite?
As in AWE? Like the hang-glider lifts a turbine?

What about lifting a person using a hang-glider in kite mode?
By this I mean a stationary anchor point.
Any info?
Doug Selsam
Doug@Selsam.com

Group: AirborneWindEnergy Message: 2341 From: Grant Calverley Date: 10/13/2010
Subject: Re: Flying a hang-glider like a kite - manned kites?
Hi Doug,
Tethered (off the shelf) hang gliders sounds like a bad idea to me.  I think the standard frames do not have the strength needed to counter the tow rope or tether pull as it is much greater then the 1 g environment they are designed for. 
 
They used to launch this way allot in the 70's.  A friend of mines brother died when his hanglider folded in half because of the strain from the tether.  Be careful. It would need to be an extra strong frame and wing.
Grant Calverley
360-378-6186



Group: AirborneWindEnergy Message: 2342 From: dave santos Date: 10/13/2010
Subject: Re: Flying a hang-glider like a kite - manned kites?
A Hang Glider can be adapted as a kite, but there are details. The weight-shift control input is not the same as a multiline kite. Without a pilot's pendulum mass the wing would be far less stable, but a generator could replace the mass. Any wing over about 8 L/D (all modern HGs) really needs to sweep to earn its keep, & high-speed crash is a probable experience without great control. Operating a HG as a kite in the turbulent surface layer would be particularly risky.
 
Still, one can compete with JE & MP's fancy custom wings by fooling with salvage. There are a lot of obsolete HGs stashed away in garages that can be bought for almost nothing. Suspending them from cables fixed to terrain to catch wind has long been a KiteLab suggestion.
 
=========================
 
Note- a drive-shaft/torsion-tube IS a high-compression structure that presses hard on its core under load. Most of the weight is solely to fight this compression, either by a solid core, or by a rigid tube section. Buckling failure is more likely given the vagaries of service, but a torsion-tube can actually implode under load.
 



Group: AirborneWindEnergy Message: 2343 From: Joe Faust Date: 10/14/2010
Subject: Today's AWE-some Gem: ___(gem)____

Did you notice the little new feature on the frontpage of AWE Community's web at EnergyKiteSystems ?

"Today's AWE-some Gem: ___(gem)______" 

And the feature associates with its gentle archive:

http://www.energykitesystems.net/TodaysAWEgems/1AWEgems.html

Recommendations for such gems are ever invited.

Today's gem is someone taking a neat glance at AWECS; he comes from other arenas.

Group: AirborneWindEnergy Message: 2344 From: Doug Date: 10/14/2010
Subject: Re: Flying a hang-glider like a kite - manned kites?
Thanks Grant:
Folding hang gliders - not good when they fold during flight...
I had a hang glider in the early 1970's, with a 4:1 glide ratio.
The guy I sold it to went into some power lines, but was OK.
My dad crashed it and broke the central bar with his head - my fault - I told him to "go" when the wind was not enough.
Luckily everybody was OK.

OK here's the next question:
Let's say we want to lift a wind turbine, or at least part of a wind turbine. Let's say at first we just want to get it up there in a stable mode, without a lot of sweeping back & forth (necessarily), but just something that will reliably fly, lift some weight, and not fall or crash to the side etc.
Assuming we have a way handle things when the wind dies down, what brands/models of kite might we be looking at for stable lifting platforms?

I'd really like to hear ALL opinions on this if you know, or HAVE an opinion.
Thanks
:)
Doug Selsam

Group: AirborneWindEnergy Message: 2345 From: dave santos Date: 10/14/2010
Subject: Re: Flying a hang-glider like a kite - manned kites?
A good pilot kite all around for normal winds is Peter Lynn's basic Pilot Parafoil. It will fly well at half the windspeed of any converted hang-glider & crashing is not a threat. If you must choose a hang-glider, a Super-Floater type would be better than a faster wing.
 
Peter is now offering a 16m2 pilot with valve/flaps [drool].
 
 

Group: AirborneWindEnergy Message: 2346 From: Bob Stuart Date: 10/14/2010
Subject: Re: Flying a hang-glider like a kite - manned kites?
It should not be hard to arrange a weak link on the kite string that will snap before overloading the glider frame, with the next link arranged to re-trim the kite for less pull.

Bob

Group: AirborneWindEnergy Message: 2347 From: Joe Faust Date: 10/14/2010
Subject: Tail Turbines

AWECS category:   Tail Turbines

Choices:

  • Crosswinding or not
  • Scale: tiny, sport, village, large, huge
  • Several choices of launch/land devices (water, feathering, high-wire, torus rig, kytoon support, ...)

 

Group: AirborneWindEnergy Message: 2348 From: dave santos Date: 10/14/2010
Subject: Re: Flying a hang-glider like a kite
Weak-links a good idea in key places for predictable manageable fail-soft. Elastic aft-bridling also programmably depowers excess surge.
 
To keep a light rigid wing from folding (usually fatigued) one must span-load it, with risers all along the span.
 
Its still going to crack-up in crashes.



Group: AirborneWindEnergy Message: 2349 From: Joe Faust Date: 10/14/2010
Subject: The RAT is so close ...

The RAT is so close ...

http://www.skywalk.info/News/article/2415/?set=yes

RAT (Ram-air turbine):  R

Group: AirborneWindEnergy Message: 2350 From: Hardensoft International Limited Date: 10/15/2010
Subject: Press Release: Wayne German Award for Contributions to Airborne Wind

Wayne German has chosen Joe Faust  to receive the  2010 "Germy" award [ Wayne German Award for Contributions to Airborne Wind Energy (AWE) ] .

Wayne notes:

 "Joe deserves it a thousand times over.
My enthusiasm for Joe and his work has not "Wayned". No, if Joe dies before I do I think that I am going to get him bronzed and installed on a high over-looking promitory somewhere where he can continually watch kites pass by."
 
The Airborne Wind Energy Industry Association (AWEIA International) warmly congratulates Joe on this well-deserved honor.
 
Signed
John Adeoye Oyebanji
President protem, Airborne Wind Energy Industry Association -
AWEIA International



Group: AirborneWindEnergy Message: 2351 From: Dan Parker Date: 10/15/2010
Subject: Re: Press Release: Wayne German Award for Contributions to Airborne
Absaluttle, wonderful.
 
                                       Dan'l
 

To: AirborneWindEnergy@yahoogroups.com
From: hardensoftintl@yahoo.com
Date: Fri, 15 Oct 2010 07:01:22 -0700
Subject: [AWECS] Press Release: Wayne German Award for Contributions to Airborne Wind Energy 2010

 

Wayne German has chosen Joe Faust  to receive the  2010 "Germy" award [ Wayne German Award for Contributions to Airborne Wind Energy (AWE) ] .

Wayne notes:

 "Joe deserves it a thousand times over.
My enthusiasm for Joe and his work has not "Wayned". No, if Joe dies before I do I think that I am going to get him bronzed and installed on a high over-looking promitory somewhere where he can continually watch kites pass by."
 
The Airborne Wind Energy Industry Association (AWEIA International) warmly congratulates Joe on this well-deserved honor.
 
Signed
John Adeoye Oyebanji
President protem, Airborne Wind Energy Industry Association -
AWEIA International




Group: AirborneWindEnergy Message: 2352 From: Joe Faust Date: 10/15/2010
Subject: Speech! Speech! : )

 

Many thanks to John Oyebanji for carrying Wayne's blessing.

 
User avatar 
1972 photo by Neil Larson in a time of transition that reminds me of BobK's good works.
 
http://www.energykitesystems.net/hgh/NeilLarson/FaustAndTaras1972byNeilLarson.jpg

Photo by :) Neil Larson, first official historian of the mid-20th-centurymovement.
Shown left is Joe Faust, meeting moderator, and right: teen Taras Kiceniuk, Jr.
1972.  Both today are advancing wing things that affect the world of hang gliding.
Recalling those early meetings gives me a sense of validation for the good works that BobK has been doing for hang gliding.

On October 15, 2010, AWEIA International gave "Press Release." [[The appreciation by Mr. Wayne German is one of my most treasured colors of my wings. :D Thank you, Wayne! ]]
Reprint from USHawks.org 

I happily reported to my three adult children that they have been the pillars to my energy kite services as I proudly told them of Wayne German's nod to their dad.      Thank you, Wayne; all LIFT to you and yours.  

Very happy to be inked on the sheet:
http://energykitesystems.net/WayneGermanAWEaward

 

Group: AirborneWindEnergy Message: 2353 From: Pierre BENHAIEM Date: 10/15/2010
Subject: Re: Press Release: Wayne German Award for Contributions to Airborne
Congratulations to Joe Faust

PierreB




Group: AirborneWindEnergy Message: 2354 From: Muzhichkov Date: 10/15/2010
Subject: Re: Press Release: Wayne German Award for Contributions to Airborne
Mycongratulations and many thanks to Joe!
Group: AirborneWindEnergy Message: 2355 From: Pierre Benhaiem Date: 10/16/2010
Subject: Manual Flygen,more explicit video
Group: AirborneWindEnergy Message: 2356 From: dimitri.cherny Date: 10/16/2010
Subject: Re: Manual Flygen,more explicit video
Very Cool.

Group: AirborneWindEnergy Message: 2357 From: dave santos Date: 10/17/2010
Subject: High School Used Toy Kites for Kite Altitude Record
History consistently proves important work in kites hardly requires vast resources & advanced degrees. Many a first comes from modest educational & economic situations.
 
George Pocock, an elementary school principal, pioneered power kiting as a hobby, with his own children as test pilots. Harry Osborne's community college students sewed the largest wing ever created, a 17,000ft parafoil. Miles Loyd & his high school age son did seminal AWE experiments as a father-son team, with almost no budget.
 
Here is yet another inspirational gem on this theme-
 
Steve Lyman writes-
 
 I was part of the team of Gary, Indiana high school students that set the Guinness record for kite flying altitude in 1969. The record was set using a train of 19 Gayla kites of various wingspans (3-5 feet) on several weights of Shakespeare monofilament fishing line. Gayla Industries (Houston, TX) and Shakespeare Sporting Goods Company (Columbia, SC) provided the kites and line while we manufactured our own winch and brake system to handle the factory aluminum spools of fishing line (2,000-4,000 yards per spool depending on line test weight). The record was witnessed by the local TV reporter from NBC in Chicago and a newspaper reporter from the Gary Post-Tribune. Our observations and calculations were verified by a certified mathematics teacher and submitted to the Guinness Record people (I have a copy of the 1974 edition which credits our attempt). We had to use telescopic triangulation with walkie talkie communication and a US Navy sextant between the two observation sites along the catenary plane, backed up by elastic catenary calculation (half of an inverse hyperbolic cosine function) using the total length of line deployed (verified by recording the length of line of each spool fully deployed and recording the mass of the line on the remaining partially deployed spool using precision balance scales) to calculate the final position of our top kite since there was no GPS in those days. To achieve the altitude of 35,531 feet, 56,457 feet of line was deployed during the final record attempt which lasted over 7 hours. We calculated a combined line elasticity of 7%, a very conservative elongation value for monofilament fishing line. We used a range of fishing line weights from 20-50 lb test. We had to receive written permission from the FAA ATC center in Chicago to make the attempt. From early test flights, we determined a single kite of manageable size could not beat the record held since 1919 by German meteorologists (using large box kites). We finally went with Gayla as their delta wing kites demonstrated consistently the ability to fly at high angles of attack, making the most efficient use of the line deployed (and reducing line weight). We emulated the successful German record technique of joining kites in a train to support the line weight and provide greater total system lift. Over the years, the students on our team went on with their lives and we did not notice that Guinness had removed our record from print at some point. Perhaps we should look into this with Guinness. As a footnote, several of the kites from the record attempt were eventually returned to us from places over 100 miles from our launch location and put on display in our trophy case at Wirt High School.

We used two 11" Celestron telescopes for our observations. They still work well for spotting 100m asteroids 200,000 miles from Earth so we had no issues following the train during the flight at medium magnifications. Wind speed,heading, and temperature aloft were monitored from NOAA and FAA data every 2 hours up to 30K feet.Wind speeds varied from 18-25 mph at 5K feet to 40-55 mph at 30K feet.During the flight we experienced small wind shears of 10-20 degrees at the various altitudes, generally on a heading of 090 degrees, which added to the challenge of tracking the train. The Gayla Giant Bat kite displayed at our high school was number 1 at the top of the train. The sail material experienced some wind damage along the edges, but the frame and sail panel bonding held up fine.
 
 
NOTE- KiteLab Ilwaco (KiteLab Group) intensively relies on toy & sport kites for rapid low-cost prototyping & development of major new concepts. 

Group: AirborneWindEnergy Message: 2358 From: Doug Date: 10/17/2010
Subject: Re: Manual Flygen,more explicit video
Nice!

Group: AirborneWindEnergy Message: 2359 From: Doug Date: 10/18/2010
Subject: Re: High School Used Toy Kites for Kite Altitude Record
All the logic that went into this record sounds just like the logic of Superturbine(R) - a stack of small, lightweight working members, essentially off the shelf.
Doug Selsam
http://www.selsam.com

Group: AirborneWindEnergy Message: 2360 From: dave santos Date: 10/18/2010
Subject: Re: High School Used Toy Kites for Kite Altitude Record
So sixty dollars worth of kites & maybe a couple of hundred worth of line is what it took kids to reach the stratosphere. This is Classic Kiting. Classic methods are predicted by KiteLab to dominate early AWE.
 
Its easily to get a toy kite to about two thousand feet before line drag overtakes climb. A train like this spaces the kites out about every couple of thousand feet. It would be interesting to know exactly how it was rigged, but toy kites start to loop as wind overwhelms stability at about 20knts. Looping sweep actually increases pull, but a single kite would slowly loop down. What happens with a train of looping kites is that aggregate stability emerges, residual marginal stability of each kite sums back into overall stability (with help from a spring-boost up each loop from the main tether). This is the stability mechanism KiteLab found for passive control to beat painful active control by the numbers (MTBF & cost).
 
The secondary mechanism of the looping kite self-stabilizing as it is brought back down into slower air for landing is a great self-depower effect for many AWECS variants.
 
A glorified toy kite designed to give a few years of duty is likely the "Wind Cell" equivalent of the crystal silicon Solar Cell; which is only the few cm dia. of the parent crystal boule, yet aggregates into farm arrays. Such a Wind Cell would likely be a convenient size, around 20 sq m, for one or two humans to handle as hundreds launch-from-a-box.
 
Take away the rotating tower, push aside the telescope, & it does kinda resemble a SuperTurbine, except the part about the stratosphere ;^)
 

 

Group: AirborneWindEnergy Message: 2361 From: Joe Faust Date: 10/18/2010
Subject: Dynamic free-flight tether segment with kite at each end

There are extant practiced free-flight tether-segments that have kites at both ends.

Kite hang gliders are in the category; the kite line is short; at one end is a large kite wing; at the other end is a body-of-pilot kite.

Jumping powerkiters are in the category; the long line has a kite above and a human-body kite below.

Going further allowing two fluids with paravane as kite, then the water hulls in traction by kite power are in this category.

A release kite with long line has the very dragging-flagging-serpentine tether as the summary lower kite; thus such may fit in the category.

Notice that paragliding is a two-kite system with the hung pilot being the lower (most of the time) kite; here the kiteline set has many members. The lift/drag of the pilot-as-lower-kite is important to competition pilots.  Some PG pilots work their body-harness kite with care as part of the control system of the free-flight system.

 

Free-flight bi-kite dynamic soaring systems:  (Richard Miller, Joe Faust, Wayne German, Dale C. Kramer, Dave Santos, ...)  However, consider also the human pilot as a lower kite connected to a traction upper kite in a dynamic system of a set of lines ended at both ends thus with a kite.

  1. Brighton Kite Jumping EXTREME
  2. 35 COUPE ICARE 2008, fly with an eagle, vliegen met een adelaar 

Future AWECS in this FF-AWE category will vary the design of the upper kite and that of the lower kite; mining of energy will occur for various niche applications.  There will be systems with upper kite in jet-stream and lower kite of the kiteline segment out of the jet-stream; the integrated system will control aspects of the upper and lower kite to  bring on profitable mining of energy for immediate uses or delayed uses.

Group: AirborneWindEnergy Message: 2362 From: Muzhichkov Date: 10/19/2010
Subject: Presentations
Dear collegs, it's a wonderfull resourse with a lot of info that we have with help of Joe Faus and other collegs, but all this information is too unorganized.
Therefor I present a wonderfull possibility to make an online presentation where earch of us can put his model in special place and in that way we can systematize all types of AWECS.
Main advantage of it is a possibility to scale a presentation list, so on one list can be puted a lot of info and it will be very presentable.
http://prezi.com/presentation/aweia_presentations@yahoo.com/ibfjmoq/

Good wind!

Alexander
AWEnergy.ru
Group: AirborneWindEnergy Message: 2363 From: Joe Faust Date: 10/19/2010
Subject: Re: Presentations
 
Taking my first step into your neat initiative.
Group: AirborneWindEnergy Message: 2364 From: Joe Faust Date: 10/19/2010
Subject: Re: Presentations
Alexander,
             Sorry. I think my effort might have deleted the two images you had. Sorry!
I placed an arrow; then in dragging the arrow off the screen, then something happened.
It seems that any visiting editor might accidentally erase all the efforts of others; that would be troublesome, say after 30 editors put up some images and text, etc.    Now I am shy to place things on that form.  
 
JoeF

Group: AirborneWindEnergy Message: 2365 From: Joe Faust Date: 10/20/2010
Subject: Franklin FK Chen of Oakland, California

http://EnergyKiteSystems.net/KitePatents/US2010260592A1.pdf

Franklin FK Chen of Oakland, California

Guided wind kite for increased wind turbine power output
 Publication info: US2010260592 (A1) 

===================================

My comment:

Applicant Franklin FK Chen  intends to fly kites in a manner to bring upper wind flow to ground-towered turbines.  The generator is essentially on the ground while the kite diverts flow to the towered turbine. Long tall kites could divert upper wind down to the ground-towered turbine.    First thought: heat of compression, ground dust, challenge of turbulence aft of the kite dynamic for feed to the ground-towered turbines.  Recall that drawings are less important than the text claims for capturing the fullness of intended functions.   Notice the correspondence address, not far from KiteLab, Ilwaco.         JoeF

Group: AirborneWindEnergy Message: 2366 From: Joe Faust Date: 10/21/2010
Subject: Yes utility scale, but kiteskaters are people too!

Just as utilityAWE thinks of pulling railroad cars with generators at the axles, we have a consideration in sportAWE with kiteskating.

Wheels of kiteskaters could feature a micro generator for generating electricity for use for communication devices, energizing advertising pixels set in the skater's clothes, and much more. Up to inventors and designers to use the energy gained from the sport-scale AWECS.
http://www.kiteskating.com/

Group: AirborneWindEnergy Message: 2367 From: Joe Faust Date: 10/21/2010
Subject: Re: a variable pitch H-Darrieus design
Group: AirborneWindEnergy Message: 2368 From: dave santos Date: 10/21/2010
Subject: Low Flying-Angle Mitigation
Low flying-angle is a discouraging reality of most kite-based AWE. Flying higher requires ever more excessive tether-scope, weight, drag, & negative lift.
 
KiteLab's meshed AWE array concepts mitigate this problem. Only the upwind margin of such an array need use low angled tethers. All subsequent cells of the elevated mesh can enjoy short vertical tethers or even tilt tethers windward for lift & reduced drag. The wider downwind a meshed array is proportioned, the more low flying-angle penalties are avoided.
 
Notes:
 
Vertical tethers are ideal for membrane wingmills to passively accept wind from all quarters. Surface work-cells can be turret-less.
 
A meshed array can have its entire margin consist of low angled tethers, independent of wind direction. Such an array need not rotate if its lifters all swivel on leaders.
 
A thin upwind "whiskey-line" can tilt a single element AWECS vertical or upwind. A thick conductor cable located downwind is rendered far more supportable.
 
Putting wings all along tethers also fights low flying angle & maximizes airspace by higher frontal solidity.
 
Meshes, lattices, arches, trains & other array configurations maximize footprint & airspace. An upcoming report summarizes the topic.
 
coolip

Group: AirborneWindEnergy Message: 2369 From: dave santos Date: 10/22/2010
Subject: Unsteady Aerodynamics as a Basis for AWE
Overview:
 
Unsteady aerodynamics is the messy real-world reality of all kite flight. As oscillation fundamentals are understood & mastered, the conceptual basis for AWE greatly expands. 
 
Review:
 
Mechanical power typically involves a drive-train of rolling stress-wave wave-guides called wheels, with only a fraction of embodied structure actively loaded. Just as a cyclist pedals a bicycle, oscillating power converts to continuous rotation by cranking levers. A lever does the work of a far larger wheel with just a fraction of full wheel structure, but over a limited, reversing, rotation range. Ancient lever variants confer design flexibility, for example, a bell-crank re-vectors force orthogonally. 
 
Levers make lower fundamental harmonic operating modes practical, without giant wheels. In bio-locomotion, this means flapping wings driven by tendons. In AWE, wind-driven bio-mimetic foils, string, & levers can drive generators.
 
The standard wind turbine is an expensive & massive object. To fly far fancier specialized turbines at larger & larger scales means weight & cost soon become critical, then hopeless. Flygens hardly help. Desperate chasing of high-performance by the forced trading-away of inherent-stability grows dependence on active flight-automation.*
 
Like basic turbines, practical oscillating wings are passive-controlled, self-regulated by tuned coupled aero, inertial, & elastic forces. The challenge is to optimize every phase of oscillation. Special lift mechanisms in unsteady aerodynamics are a plus, offsetting discontinuous trade-offs.
 
All in all, tensile mechanical-advantage driven by short-period kite-wing oscillation is a major AWE scaling & cost solution.
 
Case Study: The Wing-Mill
 
Long reeling-cycles are a popular oscillation mode in many pioneering AWE concepts. The recovery phase gap in generation is awkward. Short-period loops & figure-of-eights, with brief embedded recovery phases at the upper turns, are an effective alternative.
 
Self-oscillation is simple for a flapping-wing membrane wing-mill. A tip-hung kite-wing is naturally sensitive to disturbance & tends to self-oscillate in wind like a flag by a mix of pendulum & unsteady-aerodynamic forces. Dutch-Roll oscillation, a major short-period dynamic mode for conventional kites, traces frontal figure-of-eights. Suspended wing-mill fly oblique eights. Characteristic motion of various wings can range from a tight waggle suitable for close formations to wide-swept lazy-eights.
 
A wingmill's flapping cycle outputs strong sinusoidal or sawtooth power pulses. A high-amplitude-spike occurs by an air-hammer effect, as a low-stretch wingmill "pops" on each tack. Optimal pre-tension of hung wingmill is low static tension, with no slack in the relaxation/recovery phase. 
 
Current membrane wingmills are not too high in aspect ratio or the flapping breaks up into subharmonics; there is easy usable power in a broad working wing of L/D of ~5-15.
 
The right sort of tail on a hung wing-mill acts is a tuned oscillation promoter & regulator. Flag motion is mostly unsteady-aerodynamic, with some inertial action. Whip-lashing is the inertial component. [see links below] Of all the world's country flags, Nepal's is uniquely shape-optimized to flap in thin air & survive storms.
 
The critical speed for reliable flapping onset is set by the design. Early onset can be triggered by a control nudge. Flapping frequency is dependent on the wing's characteristic-length harmonics (span & chord), windspeed, & line tension. An added kite-tail hosts a parade of aero-inertial transverse waves, with back-reflected longitudinal waves promoting regular self-tacking of the forebody wingmill. Quality flapping is a resonance between a fundamental oscillation mode of the leading-edge wing & coupled oscillations of the tail-flag.
 
Useful power is fundamental mode vibration; higher modes are parasitic. Local short-period harmonics are damped out of the forewing by battens or membrane stiffness, but tolerated toward the tapered tailend as a minor stability cost.
 
Unsteady-Aero Operational Constraints:
 
Long-period reeling-cycles wear on kiteline. Short period cycling can avoid reeling wear altogether or rely on small sections of ruggedized line at pulleys or capstans.
 
Flogging, as destructive sail flapping is called, is a manageable wingmill design issue. The British Admiralty's vast experience flogging flags offers lessons: Re-hem flags as they fray; premature fraying is mostly high-wind damage; a flag brought down when gale threatens lasts many years. Passive flogging mitigation is workable: Ease halyard tension or add a "cut-out" mechanism like the simple self-furling of an elastic lower corner attachment. KiteLab has flown membrane wingmills for thousands of hours from trees, thru many storms, & long hours under kites, without wear as a problem.
 
High-wind flags are made smaller & thicker. This characterizes scaling limits to membrane wing-mills, which with current materials can grow to nicely to 1000m scale, but not much more; after which populous arrays offer ultimate scalability.
 
In sailing, non-prepreg carbon fiber sandwiched between mylar membrane is reputed flog-damage resistant. Cuben fiber, based on UHMWPE, is also considered robust. Its practical to make fairly large "solid" wing-mills of foams like EPP, but even low-tech materials like bamboo & cardboard can comprise an unsteady wing to power home or village. 
 
There is an art to designing & tuning unsteady short-period systems for utmost performance across wide wind ranges.
 
Conclusion:
 
Unsteady aero-to-mechanical dynamics is a fundamental basis for AWE. Optimized unsteady aerodynamic performance is a key to success.
 
==================
 
* Toy-kite drag-stability & aerospace-UAV actuation-overhead are roughly comparable control performance v. cost trades. Its as if a bulk communications-theoretic thermodynamic burden is placed on intensive aircraft control of any kind. Still, the kite trumps by safety, simplicity, & scalability.
 
coolIP 
 
LINKS
 
Previous work on flag physics is lead by-
 
Whip physics as studied by another lab-
 

Group: AirborneWindEnergy Message: 2370 From: dave santos Date: 10/22/2010
Subject: Fw: Re: Latest Tailed Wing-Mill Video
This clip shows the tail dynamics which regulate the firing of the new wing-mills, The meter-long 7gr wing is shown flying in about 2m-per-second breeze. Camera was rotated sideways-
 

 
Thanks to JoeF for hosting AWE media.
 
Next will be video of-

Group: AirborneWindEnergy Message: 2371 From: dimitri.cherny Date: 10/22/2010
Subject: Re: Low Flying-Angle Mitigation
Images please.

Group: AirborneWindEnergy Message: 2372 From: dave santos Date: 10/22/2010
Subject: Re: Low Flying-Angle Mitigation
"Images please."

OK Dimitri, but forgive the old-school CGI-

 
       Pilot Kites --2000ft ASL--
         <        Leaders      /   /    /    /      /    /
  _/--------------------------- <= Trot Line
         =   = _/ | | | | | |
Tilted Tether _/ | | | | | | <= Vertical Tethers ==============J==========*===*====*====*=====*=====*=====
SURFACE \ \
Workcells

===== Dense AWE Array with one-to-many low-to-high-angle tethers ====
(partial slice view)


cool IP
Group: AirborneWindEnergy Message: 2373 From: Joe Faust Date: 10/23/2010
Subject: Use liquids aloft interestingly in AWECS

AWE Community exercise

All  are welcome to advance:
"using liquids aloft interestingly in AWECS "

What have we?

Group: AirborneWindEnergy Message: 2374 From: Dan Parker Date: 10/23/2010
Subject: Re: Use liquids aloft interestingly in AWECS
Joe, Brings the party hats and I'll supply the bublely? Jeez Joe, yah got me on this one, wondering just where your going with this. Hmmmmm!

To: AirborneWindEnergy@yahoogroups.com
From: joefaust333@gmail.com
Date: Sat, 23 Oct 2010 17:42:56 +0000
Subject: [AWECS] Use liquids aloft interestingly in AWECS

 

AWE Community exercise
All  are welcome to advance:
"using liquids aloft interestingly in AWECS "
What have we?

Group: AirborneWindEnergy Message: 2375 From: Joe Faust Date: 10/23/2010
Subject: Re: Use liquids aloft interestingly in AWECS

Nice start, Dan. This is open-ended. But the topic was in my waking notes, so I trust it.
I dream AWECS matters.   Your "bubbly" was not in my first fervor fun, but your bubbly
sure does have high potential aloft.  

Giving now a moment toward your offer:

1. Bubbly liquids that are of the party type remind me that AWECS can indeed--as shown in an earlier post--
can have double purposes including homes, resorts, tours, sight-seeing, celebrations, etc. aloft even
while the whole system generates electricity  for others. 

2. Mix two or more chemicals to get a bubbly gas-giving situation to alter the dynamics of a lifting kytoon. The mixing might be timed or triggered by circumstances. Such might be part of an aloft repair effort.  Or an aloft recharge effort programmed when certain parameters are reached.

3. Liquid that releases bubbles of gas at cetain temperatures to be part of a control system.

4. Liquids that let off bubbles aloft for display, advertertising, entertainment, dispersion of seeds, etc.

...I am sure there will be more bubbly suggestion.    So, neat, you have started the thread with the bubbly aspect potential of liquids aloft in AWECS.   Thanks, Dan.

Lifting liquics for interesting developments in AWECS,

JoeF

 

 

 

=======================


Group: AirborneWindEnergy Message: 2376 From: Joe Faust Date: 10/23/2010
Subject: Re: Use liquids aloft interestingly in AWECS

============================

Imagine Kite-Irrigation systems sprinkling water from aloft
on parched soil/farm.
The water could be from some distant stream or underground.
What do you think?
JohnO

=============

Time to design and try it!     Perhaps save on mounting pipes
over the land and through private properties.  Pump the water  up the
hollow tether in some instances. Other instances swoop AWECS
and grab water and lift it aloft; and then fly it over needed spots
for spray or drop or let through hose.
Much to think about here.    Great!
JoeF

Group: AirborneWindEnergy Message: 2377 From: Doug Date: 10/24/2010
Subject: Re: Use liquids aloft interestingly in AWECS
Pumping water for irrigation had long been the first and main use for wind energy before electricity cam along, and continues to be a major use of wind energy.
Doug S.

Group: AirborneWindEnergy Message: 2378 From: dave santos Date: 10/24/2010
Subject: The "Lost Thesis" Discovered
Here is a nice window into early aerospace-robotics AWE culture (2007)... one can see the explosive-complexity issue in play & connections between some of the founding heroes-


Group: AirborneWindEnergy Message: 2379 From: Joe Faust Date: 10/24/2010
Subject: Re: Use liquids aloft interestingly in AWECS
And now in the unfolding AWE era
there will be niche uses of
"aerial aqueducts"
brought by tethered aviation.
 
Group: AirborneWindEnergy Message: 2380 From: Joe Faust Date: 10/25/2010
Subject: Re: Use liquids aloft interestingly in AWECS

 Alistair K. Chan, Roderick A. Hyde, Nathan P. Myhrvold, Clarence T. Tegreene, Lowell L. Wood, JR.  intend changing the atmosphere using liquids aloft in AWECS:
(click image for full instruction)

 

Group: AirborneWindEnergy Message: 2381 From: Joe Faust Date: 10/25/2010
Subject: Re: Use liquids aloft interestingly in AWECS

Passive control of lifting body in AWECS using liquids?   ;;)

What might be done with slosh of liquid mercury for giving resultant dynamics useful for mining energy from the winds at altitude in an AWECS ? 

  • Triggers?
  • Switches?
  • Mass-balance changes?
  • Situational logic pumping mercury or water to alternate region of kite?
  • Mercury switch 
  • Night illumination  of AWECS using liquid-based switch?

JoeF

 

 

Group: AirborneWindEnergy Message: 2382 From: Joe Faust Date: 10/25/2010
Subject: Project HIGHWIND
OPTEC's Principal Investigator Moritz Diehl was awarded an ERC Starting Grant for his project HIGHWIND - Simulation, Optimization and Control of High-Altitude Wind Power Generators. The European Research Council (ERC) selects individual scientists with high risk, high gain projects, in a highly selective procedure, and awards more than 1 MEuro to each selected project. The ERC funding is synergetic with OPTEC's kite power project and will strongly reinforce its activities in the coming 5 years.