Messages in AirborneWindEnergy group.                           AWES13005to13056 Page 156 of 440.
Group: AirborneWindEnergy Message: 13005 From: dougselsam Date: 6/12/2014
Subject: Re: Reinhart's SS Wing as Ski-Lift Eliminator

Group: AirborneWindEnergy Message: 13006 From: dougselsam Date: 6/12/2014
Subject: Re: Talks between Selsam & GE Wind stall

Group: AirborneWindEnergy Message: 13007 From: Rod Read Date: 6/12/2014
Subject: Re: Reinhart's SS Wing as Ski-Lift Eliminator

Group: AirborneWindEnergy Message: 13008 From: Rod Read Date: 6/12/2014
Subject: Re: Talks between Selsam & GE Wind stall

Group: AirborneWindEnergy Message: 13009 From: dougselsam Date: 6/12/2014
Subject: Re: Reinhart's SS Wing as Ski-Lift Eliminator

Group: AirborneWindEnergy Message: 13010 From: dougselsam Date: 6/12/2014
Subject: Re: Talks between Selsam & GE Wind stall

Group: AirborneWindEnergy Message: 13011 From: dave santos Date: 6/12/2014
Subject: Re: Talks between Selsam & GE Wind stall

Group: AirborneWindEnergy Message: 13012 From: dave santos Date: 6/12/2014
Subject: Looping Foil Demo at UTexas R&D Campus

Group: AirborneWindEnergy Message: 13014 From: Gabor Dobos Date: 6/13/2014
Subject: Re: Necrology: www.dynamic-soaring.de

Group: AirborneWindEnergy Message: 13016 From: Rod Read Date: 6/14/2014
Subject: DECC hosting a kite awe technology

Group: AirborneWindEnergy Message: 13017 From: Hardensoft International Limited Date: 6/14/2014
Subject: Re: Looping Foil Demo at UTexas R&D Campus - Google(X)

Group: AirborneWindEnergy Message: 13018 From: Rod Read Date: 6/19/2014
Subject: airborne soft rotor drives a brake

Group: AirborneWindEnergy Message: 13019 From: dave santos Date: 6/19/2014
Subject: Barnard decries growing support for AWE R&D (Bjorn Lomborg, etc.)

Group: AirborneWindEnergy Message: 13020 From: dave santos Date: 6/19/2014
Subject: Mega-scale AWE Water-borne Similarity-Cases (floating marinas & offs

Group: AirborneWindEnergy Message: 13021 From: dave santos Date: 6/19/2014
Subject: Helical Anchors

Group: AirborneWindEnergy Message: 13022 From: dave santos Date: 6/19/2014
Subject: Re: airborne soft rotor drives a brake

Group: AirborneWindEnergy Message: 13023 From: Rod Read Date: 6/19/2014
Subject: Re: airborne soft rotor drives a brake

Group: AirborneWindEnergy Message: 13024 From: joe_f_90032 Date: 6/19/2014
Subject: Re: Mega-scale AWE Water-borne Similarity-Cases (floating marinas &

Group: AirborneWindEnergy Message: 13025 From: Harry Valentine Date: 6/19/2014
Subject: Re: Barnard decries growing support for AWE R&D (Bjorn Lomborg, etc.

Group: AirborneWindEnergy Message: 13026 From: Rod Read Date: 6/20/2014
Subject: Re: airborne soft rotor drives a brake

Group: AirborneWindEnergy Message: 13027 From: dave santos Date: 6/20/2014
Subject: CNN names Altaeros BAT #1 2014 Top-Ten Invention

Group: AirborneWindEnergy Message: 13028 From: dave santos Date: 6/20/2014
Subject: Boeing "using [upper] wind to save fuel"

Group: AirborneWindEnergy Message: 13029 From: dave santos Date: 6/20/2014
Subject: Discus Launch KitePlane

Group: AirborneWindEnergy Message: 13030 From: edoishi Date: 6/20/2014
Subject: Re: Boeing "using [upper] wind to save fuel"

Group: AirborneWindEnergy Message: 13031 From: joe_f_90032 Date: 6/20/2014
Subject: Re: Discus Launch KitePlane

Group: AirborneWindEnergy Message: 13032 From: dave santos Date: 6/21/2014
Subject: Maximum Safe Values for Offshore VTOL (Makani Case)

Group: AirborneWindEnergy Message: 13033 From: dave santos Date: 6/21/2014
Subject: SS Water-Launch Demo (FlySurfer Peak)

Group: AirborneWindEnergy Message: 13034 From: stephane rousson Date: 6/22/2014
Subject: Superbes coups de Canons pour le Voilier des Airs : l'Aerosail

Group: AirborneWindEnergy Message: 13035 From: dave santos Date: 6/22/2014
Subject: Sparred Parafoils

Group: AirborneWindEnergy Message: 13036 From: dave santos Date: 6/22/2014
Subject: Parachute Clusters and Spin-Chute Arrays

Group: AirborneWindEnergy Message: 13037 From: Rod Read Date: 6/23/2014
Subject: squealing brakes demo

Group: AirborneWindEnergy Message: 13038 From: Rod Read Date: 6/23/2014
Subject: humans in giant 3d rigging and ocean current exploitation

Group: AirborneWindEnergy Message: 13039 From: Baptiste Labat Date: 6/23/2014
Subject: Fwd: TU Delft and Karlsruhe University launch "Kite Power 2.0" and a

Group: AirborneWindEnergy Message: 13040 From: joe_f_90032 Date: 6/23/2014
Subject: Kite-system-held slides

Group: AirborneWindEnergy Message: 13041 From: Rod Read Date: 6/25/2014
Subject: H2 balloon communications

Group: AirborneWindEnergy Message: 13042 From: dave santos Date: 6/25/2014
Subject: FAA Drone FARs in Flux

Group: AirborneWindEnergy Message: 13043 From: dave santos Date: 6/25/2014
Subject: FAA UAS "Roadmap" and Comprehensive Plan

Group: AirborneWindEnergy Message: 13044 From: dave santos Date: 6/25/2014
Subject: Re: humans in giant 3d rigging and ocean current exploitation

Group: AirborneWindEnergy Message: 13045 From: Rod Read Date: 6/26/2014
Subject: Re: squealing brakes demo

Group: AirborneWindEnergy Message: 13046 From: dave santos Date: 6/26/2014
Subject: Star Tower Kytoon

Group: AirborneWindEnergy Message: 13047 From: dave santos Date: 6/27/2014
Subject: Fw: Fwd: Wind Globe

Group: AirborneWindEnergy Message: 13048 From: Rod Read Date: 6/27/2014
Subject: Re: squealing brakes demo

Group: AirborneWindEnergy Message: 13049 From: dave santos Date: 6/27/2014
Subject: KITEnergy completes latest test round

Group: AirborneWindEnergy Message: 13050 From: dave santos Date: 6/27/2014
Subject: Re: squealing brakes demo

Group: AirborneWindEnergy Message: 13051 From: joe_f_90032 Date: 6/27/2014
Subject: Re: Star Tower Kytoon

Group: AirborneWindEnergy Message: 13052 From: dave santos Date: 6/28/2014
Subject: Dutch Direct Investment in AWE (DSM, KLM, TUD, Greentech Fund, Mainp

Group: AirborneWindEnergy Message: 13053 From: Rod Read Date: 6/28/2014
Subject: Re: squealing brakes demo

Group: AirborneWindEnergy Message: 13054 From: dave santos Date: 6/28/2014
Subject: Re: squealing brakes demo

Group: AirborneWindEnergy Message: 13055 From: Rod Read Date: 6/29/2014
Subject: Re: squealing brakes demo

Group: AirborneWindEnergy Message: 13056 From: Rod Read Date: 6/30/2014
Subject: Re: squealing brakes demo



Group: AirborneWindEnergy Message: 13005 From: dougselsam Date: 6/12/2014
Subject: Re: Reinhart's SS Wing as Ski-Lift Eliminator
You are an idiot
Group: AirborneWindEnergy Message: 13006 From: dougselsam Date: 6/12/2014
Subject: Re: Talks between Selsam & GE Wind stall
Dear Douchebag:  Yes I momentarily did not recognize that Joe meant "leading edge", in a single post, a few months ago.  I didn't pick up his meaning from the context, at that moment.  I briefly thought it might stand for, say, "lift envelope" or something.  A minor and temporary oversight.  So I asked what he meant.  And you have not let it go til this day.  Talk about having "too much time on your hands"... Geesh!   You are fixated on irrelevant things way too easily.  Obviously, given our many discussions going back years, I know very well what a leading edge is.  Only a douchebag idiot, or someone sick in the head, would go on for months repeatedly asserting that I somehow did not know what a leading edge is.  You have a problem.  That's not just my opinion.  You know better than to even imply for one second that someone who manufactures wind turbines and makes blades doesn't know what a leading edge is.  Your continued assertions that I don't know what a leading edge is are lame, boring, out-of-place, meaningless, and constitute evidence of your unbalanced mental state, as well as your willingness to lie and misstate facts in attempts to denigrate others on this site.  You've also complained that I have scared people away from this site.  Newsflash: few people would be interested in being on this site after reading your garbage-in/garbage-out.  Certainly nobody with any knowledge of, or interest in, wind energy is here, besides me.  I am the one exception, being more tolerant of idiots than most, since I know when a wise man and a fool interact, the wise man will learn while the fool will not, so even interacting with fools can have value.  That is the only reason I bother to correspond with you.  Thanks for the heads-up on the new family of micro-grid-tie inverters now available.  I should have one here tomorrow to test (burn out).  I'm bored with all the big inverters from Germany around here.  See, I can even learn something from a complete idiot.  Having said that, what I will likely learn next is not to buy power electronics from China (again) because they will quickly fail, leaving the buyer with empty pockets and a box of charred components.  Of course in order to burn out inverters, you first have to make at least some power.  Therefore, I assume your harbor-freight-level micro-inverter is still in perfect, untouched condition.:)
Group: AirborneWindEnergy Message: 13007 From: Rod Read Date: 6/12/2014
Subject: Re: Reinhart's SS Wing as Ski-Lift Eliminator
Achd Doug now,
don't go getting all pantsy on us... Keep some cerebral control over the emotional charge.
The same charge applied to logical thinking brought us your designs.

We all have areas of excellence. We would do well to discover where our personal facets are best applied.

To help recognise how to do this we need to engage our Corpus callosum.

Click that link and check out Jill Taylor.

I reckon AWES designers / designers ... need to engage with as much as they can influence.

So anticipate the engagements whether social or material and make them enjoyable.
peace salut

Rod Read

Windswept and Interesting Limited
15a Aiginis
Isle of Lewis
HS2 0PB

07899057227
01851 870878
Group: AirborneWindEnergy Message: 13008 From: Rod Read Date: 6/12/2014
Subject: Re: Talks between Selsam & GE Wind stall
Hey Doug,
if you were
conceived at GE in Syracuse NY as part of a secret experiment to mate the smartest engineer with the best-looking secretary.
I've seen a film about that: Arnold Schwarzenegger is your twin brother.

Rod Read

Windswept and Interesting Limited
15a Aiginis
Isle of Lewis
HS2 0PB

07899057227
01851 870878
Group: AirborneWindEnergy Message: 13009 From: dougselsam Date: 6/12/2014
Subject: Re: Reinhart's SS Wing as Ski-Lift Eliminator
Hi Roddy and thanks for your concern.  That was from the thinking part of my brain, not the emotional part.  I signed up for an airborne wind energy group.  I didn't sign up for endless accusations and fabrications by a known nutcase.   I'm not a mental health professional.  I'm therefore not qualified for such unwanted interactions.  You may notice that nobody involved with wind energy is on the list.  There may be a reason for that.  :)
Group: AirborneWindEnergy Message: 13010 From: dougselsam Date: 6/12/2014
Subject: Re: Talks between Selsam & GE Wind stall
Yeah they made that movie about the program.  Danny DeVito did a good job.  After that movie, they put Arnold in as governor, so his name would appear on the final report for my research.
Group: AirborneWindEnergy Message: 13011 From: dave santos Date: 6/12/2014
Subject: Re: Talks between Selsam & GE Wind stall
Doug,

Enough crude name-calling, which no one but you needs or wants.

We do have conventional wind expertise on the Forum, but the need in AWE for added aeronautical expertise weeds out the Gipe pack. Chris Carlin, a retired aerospace engineer, for example (whom you have never related to that I know) was a pioneer in the 70's of utility-scale turbine R&D with Boeing/NASA. Like you, I invited him to the Forum, but your trollish netiquette is what is most complained over and drives folks off-forum. I take the heat that you are not banned for your unmatched abusive language, so its my job to balance your biases and factual errors with careful rebuttals.

My family has made wind power for three generations, as another Forum example, from Aermotors and Jacobs to a DIY alternator unit my father recently reminisced about. I have made many small turbines over the decades, some outdoor, others for science education; some with multi-rotors on one shaft, others on tethers with wings and flygen and light/sound show to fly over school groups. My continuing education has included time at the American Wind Power Center (Coy is a cousin) and touring Dutch windmills on a bike, with instruction from certified millers. I also have a small windtower in sporadic use at my Austin base. Compare this low-key disclosure with your shrill self-marketing.

Recall that you could not name small WECS with alu generator casings, and I did, when we matched turbine knowledge by phone. You recently almost got me with "Marshall has two Ls", so I took them off ("Marsha" amps now).

But without a deep aviation background, I would be lost in AWE like you. Note that LE is not used as an aconym for "lift envelope" that I can find- http://www.allacronyms.com/LE/Leading_Edge

Enjoy learning aerospace; its a wonderful life-long study,

daveS

PS Only you and MikeB have ever needed douching on the AWES Forum.
 


On Thursday, June 12, 2014 5:12 PM, "dougselsam@yahoo.com [AirborneWindEnergy]" <AirborneWindEnergy@yahoogroups.com
Group: AirborneWindEnergy Message: 13012 From: dave santos Date: 6/12/2014
Subject: Looping Foil Demo at UTexas R&D Campus
Today Ed Sapir and I, as kPower, met with Dr. Jayant Sirhohi and his grad students at his RotorLab at the UTexas Jake Pickle Research Campus to discuss AWE. We discussed the physics of giant soft rotors and reviewed classic kite methods for key ideas. Ed presented some New Tech Kite samples and a series of videos from kFarm. 

The looping-foils caught Jayant's attention, and he asked us to fly the demo, so we proceeded outdoors. I had flown kites from the cluttered complex of buildings before, and decades before had wandered dazed around this quasi military-base, but never noted the large open field just one block from RotorLab. Lush acres of grass sloped gently down to windward. Eureka; the best kite-field in all Austin.

The wind was fitful and light, but the looping foil rig gamely rose and began to turn. The AE folks were enchanted with the wonderful dynamics, and Jayant declared on the spot that this would be the lab's next research focus, and that he would put in for NSF funding for a full study (as a top UMD and Sikorsky rotor figure, and now at UT, Jayant lands NSF grants regularly). The foil looped as we talked until the wind went away.

As we walked off the field, it came out that one of the PhD's had just inked an NDA with GoogleX to work on the M600, and other secret projects. It turns out GoogleX needs the best aeroelasticians in the world, and many of the best come from UT AE (Prof. Emeritus Stearman was my mentor and father of aeroelastic acoustics, and a Dave Lang peer). The new hired gun from Texas will carry the open-AWE plea for GoogleX AWE R&D diversification deep into the Bay Area enclaves.
Group: AirborneWindEnergy Message: 13014 From: Gabor Dobos Date: 6/13/2014
Subject: Re: Necrology: www.dynamic-soaring.de
DaveL,
 
yes, time domain simulations have been done, and they show a robust energy cycle.

Several researcher agree with this. Take a look please at the video "Raptor force" about Capt. Gordon's research . It is available again on Youtube:
 http://youtu.be/xlPI0AOj5MI

Gordon says:
"„The primary goal of this research was to prove or disprove the viability of dynamic soaring for enhancing a full size aircraft's total energy by using a manned sailplane as a demonstration air vehicle. Through modeling and simulation, flight test, and mathematical analysis, this research provided the first documented proof of the energy benefits realized using dynamic soaring techniques in full size sailplanes.”
http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&ved=0CB0QFjAA&url=http%3A%2F%2Fwww.dtic.mil%2Fcgi-bin%2FGetTRDoc%3FAD%3DADA461327&ei=qAWaU6vLKsfW0QWL04GQAQ&usg=AFQjCNGV66mdSWoQ2wHpeic5oS_o5xEagg&bvm=bv.68911936,d.d2k&cad=rja

"Energy-conserving dynamic soaring orbits from ground level to 120–180 m in wind shear appear possible. Finally, flight under these
conditions requires little pilot workload with only minor pilot inputs required to maintain consistent and
robust high-energy dynamic-soaring orbits over land."
in:Dynamic Soaring of Sailplanes over Open Fields
Pritam P. Sukumar and Michael S. Selig†
http://aerospace.illinois.edu/m-selig/pubs/SukumarSelig-2010-AIAA-2010-4953-DS-OpenFields.pdf
and the list of literature of this paper.


About 5-6 years ago I wrote a simple time domain simulation (just for me). Though it was as simple as possible, it showed surprisingly good agreement with the videos of DSing model-gliders.
It was especially useful in examining and learn  the effects of several parameters (e.g.: Lift to Drag ratio, wind gradient, harvested energy etc.)

I have no doubt that DS is a viable and feasible way of wind-energy harvesting. There are of course a series of details that have to be solved, but all the required technologies are available today. (Perhaps, except of high resolution meteorological data. I have it discussed with Christina Archer 4-5 years ago.)

All the best:

Gabor

Ps, to ignorance: there are no polyhistors today, and I am not one. Though my plan is a multidisciplinary one, I am not ashamed of not knowing every constituent in detail, e.g. simulation. Therefore, I highly appreciate all the help I get.
E.g. : I can imagine that if it was possible in 1940 and one made a frequency-domain simulation with realistic parameters before the resonance catastrophe of the Tacoma bridge, things would have followed a different scenario. Why are you only asking about time-domain simulation regarding dynamic soaring?



On 2014-06-10 02:12, David Lang SeattleDL@comcast.net [AirborneWindEnergy] wrote:
Group: AirborneWindEnergy Message: 13016 From: Rod Read Date: 6/14/2014
Subject: DECC hosting a kite awe technology
Following is an email alert I just read...
Any ideas who is showing?

connect@innovateuk.org

13 Jun (1 day ago)


to me

Dear Colleague,

On Thursday 19 June the Department of Energy and Climate Change (DECC) is hosting an exhibition for 50 innovative low carbon businesses, to showcase their technologies.

About the Event

All the businesses exhibiting have received funding from the department in the past few years to progress the development of their technologies to commercialisation.  The types of businesses showcasing their technologies will be SMEs developing a range of products including LED lighting, solid wall insulation and Kite power generation.

Registration

The event is free to attend and will take place between 10am-12pm & 3-4pm at Emmanuelle Centre, 9-23 Marsham Street, Westminster SW1P 3DW.

To register your interest in attending please email events@decc.gsi.gov.uk

If you are unable to attend but know of a colleague that would benefit from attending please pass this invitation on to them.



--
DECC Innovation & Engineering Expo: Showcasing low carbon energy technology


You can unsubscribe from receiving Announcements by email at any time by logging into _connect and visiting your "Account settings" page at http://connect.innovateuk.org/user/rod.read/~/405026/account-settings.

Rod Read

Windswept and Interesting Limited
15a Aiginis
Isle of Lewis
HS2 0PB

07899057227
01851 870878
Group: AirborneWindEnergy Message: 13017 From: Hardensoft International Limited Date: 6/14/2014
Subject: Re: Looping Foil Demo at UTexas R&D Campus - Google(X)
Thanks for sharing, DaveS.
It will be gladdening to have Google's collaboration on Open AWE efforts.
Further lifts.
JohnO
Airborne Wind Energy Industry Association (AWEIA International)
 
John Adeoye  Oyebanji   B.Sc. MCPN
Managing Consultant & CEO
Hardensoft International Limited
<Technologies Finance
Group: AirborneWindEnergy Message: 13018 From: Rod Read Date: 6/19/2014
Subject: airborne soft rotor drives a brake
Bit of tweaking to do but this was fun.
http://youtu.be/7k4ZoTj61pc


Testing an airborne soft rotor, driving against a brake. A really poor place to test is right outside your house. but George flew it admirably. Pulling harder than necessary in this short clip.

Kite lines need lengthened a fraction compared to how they are currently set against the red panels. Also need to tuck the end of the kite stiffening 2mm mast into a pocket to stop it getting in a fankle in low wind fold overs. tested with back swivel right at top at one point. span ok with a good wind e.g. will be good under a kite and stacked in layers


Rod Read

Windswept and Interesting Limited
15a Aiginis
Isle of Lewis
HS2 0PB

07899057227
01851 870878
Group: AirborneWindEnergy Message: 13019 From: dave santos Date: 6/19/2014
Subject: Barnard decries growing support for AWE R&D (Bjorn Lomborg, etc.)
Commenting on his website, MikeB wrote-
Group: AirborneWindEnergy Message: 13020 From: dave santos Date: 6/19/2014
Subject: Mega-scale AWE Water-borne Similarity-Cases (floating marinas & offs
Large floating marinas and offshore fish farms are similar in scale and max-loadings to proposed mega-scale unit kite farm concepts, with many shared dynamics and rigging methods. These mature cases are rich veins of prior art to study for kite-array design. They build on our initial similarity case-base of suspension bridges, and fishing techniques like long-line, multi-line trolling, trawling, etc.

The following image searches present a quick overview-


offshore fish farming - Google Search


image

offshore fish farming - Google Search
marine.ie Concept for an offshore farm 447 × 368 - 136k - jpg rodale.menshealth.com Offshore fish farms can pose a 320 × 282 - 20k - jpg ens-newswire.c...

View on www.google.com
Preview by Yahoo



floating marinas - Google Search
Group: AirborneWindEnergy Message: 13021 From: dave santos Date: 6/19/2014
Subject: Helical Anchors
In three years of kFarm operational testing of various small soil anchors, the helical dog-stake seems to hold the best overall. In civil engineering, the Screwpile is long established as a superior anchor choice where vertical resistance is critical (subsea moorings, foundations, mast guys, etc.). 

Excepting this Forum, scalable kite anchoring has scarcely been explored, but will be an essential aspect of AWES technology-

http://en.wikipedia.org/wiki/Screwpiles

CC 4.0
Group: AirborneWindEnergy Message: 13022 From: dave santos Date: 6/19/2014
Subject: Re: airborne soft rotor drives a brake
Nice test progress; we are sure to learn new things. "All kite flying is good", as Sensei sez.

Looking forward to seeing how long you can fly the lines without twisting-up, and across how wide a wind range (?).

To go higher, you can rope-drive with the rim-groove to a downwind workcell (include tensioner); and a hollow axle can give you a control-actuation channel to trim and kill... CC 4.0




On Thursday, June 19, 2014 7:05 AM, "Rod Read rod.read@gmail.com [AirborneWindEnergy]" <AirborneWindEnergy@yahoogroups.com
Group: AirborneWindEnergy Message: 13023 From: Rod Read Date: 6/19/2014
Subject: Re: airborne soft rotor drives a brake
Yeah, There is a fair bit of tweaking learned from today's 15 min test (had to get the kids...)

I'm desperate to take it out in more wind... it's so calm for Lewis this week... big high's and some funny glowing orange ball overhead.
This Daisy is built for a lot stronger wind I reckon.

There were some line snags I'm going to sort with a bungee to the back of the driving kites and a pocket smoothing for the batten / mast ends of the driving kites.

The distance of the kite lines from the axis... and the angle the kite lines make with the axis,  makes twisting the tethering quite hard to do... especially under working tension. A good sign was that if I slammed on the brake... The kite rotor stopped within about 15 - 20 degrees.

Another good sign was, one handed flying was easy. ergo a generic following turret design... or even just tying the handles to bags... should allow the device to fly itself.


To go higher, you can rope-drive with the rim-groove to a downwind workcell (include tensioner)
I'm pretty certain that stacking rings will be much easier.

and a hollow axle can give you a control-actuation channel to trim and kill... CC 4.0
Fantastic idea yup ... very much like Clev's controller or a kite bar.

Can't wait for more testing after tweaks... It fleeeking* rocks


*fleeeking = Stornoway rude word replacement

Rod Read

Windswept and Interesting Limited
15a Aiginis
Isle of Lewis
HS2 0PB

07899057227
01851 870878
Group: AirborneWindEnergy Message: 13024 From: joe_f_90032 Date: 6/19/2014
Subject: Re: Mega-scale AWE Water-borne Similarity-Cases (floating marinas &
The following is CC 4.0 BY NC SA :
Combine aquaculture sites with AWES; two types of farming over the same water space; have interplay of AWES forces and energies with the needs of the fish farming activities. 
~ JoeF. 
Group: AirborneWindEnergy Message: 13025 From: Harry Valentine Date: 6/19/2014
Subject: Re: Barnard decries growing support for AWE R&D (Bjorn Lomborg, etc.
With regard to the ice melting at the Antarctic, the melting just happens to be occurring in a region that is directly above undersea volcanoes . . . . that also happen to be very active. A similar situation may be occurring at Greenland . . . . . where a volcanic eruption disrupted international trans-Atlantic air transport a few years ago.


Of interest, a business contact advises me that Mac Brown (formerly of Magenn) is working with Sky Windpower for over a year


Harry

To: AirborneWindEnergy@yahoogroups.com
From: AirborneWindEnergy@yahoogroups.com
Date: Thu, 19 Jun 2014 11:02:33 -0700
Subject: [AWES] Barnard decries growing support for AWE R&D (Bjorn Lomborg, etc.)

 

Commenting on his website, MikeB wrote-
Group: AirborneWindEnergy Message: 13026 From: Rod Read Date: 6/20/2014
Subject: Re: airborne soft rotor drives a brake

Solo launch, fly and land completed.
Used an extra pulley low on the mast. And a camcleat cl261 power grip 1 tied to my belt to set relative tensions.
Wife's phone borked her video. Oh well.
Maybe I can video while flying.

Outer ring still buckling towards wheel at the kite mounts & away at the red panel mounts.
There is rod overlap in the luff tube / cuff of the red panels. This may be the cause as it provides extra stiffness.

Need more wind
Please send some

Roderick Read
15a Aiginish
Isle of Lewis
HS2 0PB
kitepowercoop.org

Group: AirborneWindEnergy Message: 13027 From: dave santos Date: 6/20/2014
Subject: CNN names Altaeros BAT #1 2014 Top-Ten Invention
Yet more high-profile mindshare for AWE, but CNN is no substitute for careful engineering vetting of competing AWES architectures. Altaeros is flying high on aggressive promotion more than on specific technical promise-

http://www.cnn.com/interactive/2014/06/tech/cnn10-inventions/?hpt=te_t1
Group: AirborneWindEnergy Message: 13028 From: dave santos Date: 6/20/2014
Subject: Boeing "using [upper] wind to save fuel"
An aviation practice now in its second century, AWE to save fuel continues to advance in sophistication-

http://www.buildsomethingbetter.com/#!/video/environment/using-wind-to-save-fuel
Group: AirborneWindEnergy Message: 13029 From: dave santos Date: 6/20/2014
Subject: Discus Launch KitePlane
Discus Launch Gliders have evolved greatly in recent years to become a well-recognized model class. Its practitioners learn to spot and hit thermals somewhat like hunting by boomerang. KULueven's AWES launching carousel is a similar method. In the Discus case, the wingspan acts as a throwing stick, effectively extending the lever-arm, for launches far beyond a simple "javelin" glider-throw.

Discus Launch Glider - Wikipedia, the free encyclopedia
Group: AirborneWindEnergy Message: 13030 From: edoishi Date: 6/20/2014
Subject: Re: Boeing "using [upper] wind to save fuel"
Just as interesting, from the same source:

SAVE : Surfing Aircraft Vortices for Energy
Group: AirborneWindEnergy Message: 13031 From: joe_f_90032 Date: 6/20/2014
Subject: Re: Discus Launch KitePlane
Niki Radina DLG in English

 
Group: AirborneWindEnergy Message: 13032 From: dave santos Date: 6/21/2014
Subject: Maximum Safe Values for Offshore VTOL (Makani Case)

UK and Norwegian offshore helicopter operations have adopted numeric limits linked below on wave induced motion for landing on floating offshore helipads. The limits ensure a high level of landing safety, but the bad news for Makani's offshore AWES architecture is the high cost and "poor workability"* imposed, along with increased risk of settling-under-power by Makani's high rotor disc loadings.

Missing from the guidelines is an emerging Wind Severity Index (WSI) for offshore helicopter landings that will quantify air turbulence entrained by heaving seas. High WSI will limit operations even if Makani's spar buoy platforms are scaled for a low Motion Severity Index (MSI).

http://www.helidecks.org/download%20files/FSI%20new%20pitch%20roll%20and%20heave%20limits.pdf


* van den Boom; Marin
Group: AirborneWindEnergy Message: 13033 From: dave santos Date: 6/21/2014
Subject: SS Water-Launch Demo (FlySurfer Peak)
Will giant soft kites someday water-launch (and "land") routinely in any sea-state with smaller characteristic dimensions? This capability is well-validated with small power kites and seems scalable for offshore mega-scale AWES concepts (Beaujean, Benhaiem, Read, Faust, Santos). Lets hope "farm-fish" ideally keep these giant wings picked clean of marine-fouling.

Nice demo of SS kite water-launch (Reinhart's Peak design), without added fuss and higher cost of LEI and valved-parafoil wings-

Peak Waterlaunch
Group: AirborneWindEnergy Message: 13034 From: stephane rousson Date: 6/22/2014
Subject: Superbes coups de Canons pour le Voilier des Airs : l'Aerosail
Attachments :
    bonjour à tous,

    les bonnes nouvelles  :

    -  l’ arrivée de l' ingénieur Polytechnicien Edouard Gazeau qui vient prendre en charge la gestion du projet Aérosail au niveau administratif et commercial;

    -  la logistique se précise avec le soutien du Port de Nice( Conseil Général, Direction des Ports, CCI et Capitainerie, ) 
    -  le soutien logistique des pilotes du port de Nice ( avec leur pilotine et le remorqueur ) afin d’embarquer confortablement les médias et l’assurance de la qualité de leur travail pour effecteur  nos essais en toute sérénité.

    Tout se dirige vers le plaisir et la satisfaction de décoller du Port de Nice en Direction de Monaco afin  de  saluer du large des eaux niçoises,   un des pères de l’aéronautique Monsieur Santos Dumont qui réalisa un  vol maritime le 13 février 1902 sur Monaco.

    Je tiens à remercier l’ensemble des partenaires, ainsi que les administrations, pour ce projet hors du commun qui nécessite une collaboration conjointe de nombreuses administrations. ( Affaires Maritimes, Aviation Civile, Préfectures maritime et Terrestre, Mairies, Conseil Général, CCI ) 

    Programme :

    début septembre  :  la préparation et contrôle du matériel  aux Studios Rivieras  

    mi-septembre  réunions sur la sécurité et déroulement du vol d’essai avec les administrations et équipiers  concernés.

    entre le 22 sept et 22 oct  :   vol d’essai.


    à suivre : le développement commercial du Owlone seaglider dans le monde .www.seaglider.fr

    et bientôt la mise à l’eau du E-scubster, version électrique du célèbre Scubster .www.scubster.org


    Bonnes vacances à vous tous et à bientôt en Septembre.

    Stephane Rousson
    Images intégrées 2Images intégrées 3Images intégrées 1
    --
    Group: AirborneWindEnergy Message: 13035 From: dave santos Date: 6/22/2014
    Subject: Sparred Parafoils
    Parafoils currently dominate AWE R&D by popularity and max-power claims, but canopy collapse, even though usually harmless and recoverable, is a nuisance. Valved parafoils are not prone to collapse, but inflation/deflation cycles are slower and less passive.

    Sparred Parafoils may be a preferred solution to enhance geometric stability for AWES like looping-foils and Daisies. Airbeam spars have considerable scaling-potential.

    Merry's decades-old Flexifoil has an LE spar, of course, and here is an interesting sparred parafoil for paragliding. JoeF was here first, but I don't recall he ever linked this project on the AWES Forum-

    http://www.laboratoridenvol.com/projects/paramontante/index.en.html
    Group: AirborneWindEnergy Message: 13036 From: dave santos Date: 6/22/2014
    Subject: Parachute Clusters and Spin-Chute Arrays
    An existing method of overcoming parachute (decellerator) unit scale limits is to cluster parachutes to match a design-loading. One sees clusters of modern ring-sail canopies in many cargo-drops and space-returns. Opening time and shock is reduced and statistical reliability of the whole is enhanced. Matched canopies tend not to foul, fending apart naturally. With long risers, clustered canopies space out by an air-cushion effect between them.

    Ring-sail canopies may be suited to "jellyfish" collectively in pumping-mode better than solid versions, as one AWES basis. We have several spin-chute concepts in AWE, but can they cluster? Two spin-chutes of opposed handedness do cluster, as is done with spinning crown-bol pairs. The possibility exists for high-count spin-chute arrays to be hosted on a net as a geometric plane, and for torques to transfer across the plane by impinging canopies. Inflated rollers can serve as planetary gears between larger spin-chutes with common handedness.

    A conceptual advantage of clustered canopy-walls is to cheaply fill a limited airspace with an optimal mean solidity. No claim is made of superiority of this AWES concept, but its one more contender to ponder...

    CC 4.0 BY NC SA
    Group: AirborneWindEnergy Message: 13037 From: Rod Read Date: 6/23/2014
    Subject: squealing brakes demo
    Attachments :
      Audible confirmation that a kite ring set in tension can transmit torque to ground...
      http://youtu.be/9FqugntcBME

      Unless I can get manufacturing these ... you'll just have to go make your own if you still doubt it.

      After the braking test, I set up a flying test rig... http://youtu.be/-YdTgXYaYgA

      The lifter wasn't strong enough in the low wind, so I used a mast to raise the back end.
      ( Need to tie into big arch weathercocking Mothra type kites next)

      The test was in really low wind. (wind died after ~3 hours... I de-rigged at this point as it was nearly 3 in the morning)
      But it flew for 3 hours unattended... good result.!
      http://youtu.be/jPO-yqSWgrc  mid way through.

      Inline images 1


      Snagging
      There was an issue with lower ring bridling snagging on the compressed rod end caps... (these will be pocketed on the ring shortly... hopefully done away with eventually)

      Twisting
      Early on in the evening and for the first time, I saw a twist in the lower bridles happen... far from an ideal state but good to witness... It happened as I was launching hand held and jerkily pulling up the back line with a spare hand and using my teeth for a cam cleat (bad idea) ... I released the brake and dropped the backend lift line a bit... spun the wheel a single turn by hand and it was fixed.

      Wanted developments
      finding a way to keep the driving kite bridling neat when stowing... Maybe just use a band / velcro strap / etc..

      questions?


      Rod Read

      Windswept and Interesting Limited
      15a Aiginis
      Isle of Lewis
      HS2 0PB

      07899057227
      01851 870878
      Group: AirborneWindEnergy Message: 13038 From: Rod Read Date: 6/23/2014
      Subject: humans in giant 3d rigging and ocean current exploitation
      apologies for having two headings... couple of interesting links

      humans in giant 3d rigging
      massive underground trampolines are suspended within a welsh mining cavern

      Minesto has signed an agreement with Florida Atlantic University to examine the technical, environmental and economic feasibility of installing demonstration and commercial power plants in the Florida current.

      Rod Read

      Windswept and Interesting Limited
      15a Aiginis
      Isle of Lewis
      HS2 0PB

      07899057227
      01851 870878
      Group: AirborneWindEnergy Message: 13039 From: Baptiste Labat Date: 6/23/2014
      Subject: Fwd: TU Delft and Karlsruhe University launch "Kite Power 2.0" and a
      Hi all,


      Below is a job opening by Karlsruhe university and TU Delft.

      I am as well looking for some help on the open source project robokite as I have less time to work on the prototype!

      ++
      Baptiste


      ---------- Forwarded message ----------
      From: Guido Luetsch AWEC 2013 <guido.luetsch@awec2013.de Date: Tue, Jun 17, 2014 at 9:59 AM
      Subject: TU Delft and Karlsruhe University launch "Kite Power 2.0" and are looking for engineers
      To: guido.luetsch@bhwe.org


      Dear AWEC 2013 participants,

       

      Roland Schmehl asked me to bring the following announcement and recruiting to your attention.

      All the best for TU Delft and Karlsruhe University for the “Kite Power 2.0” project.

       

      Best wishes

      Guido

       

      TU Delft and Karlsruhe University of Applied Sciences are joining forces to launch the "Kite Power 2.0" development project.

      The ambitious goal is to demonstrate within one year 24 hours of continuous pumping operation of the automated wind energy system.

      The project budget will allow for a complete revision of the existing prototype to substantially increase the Technology Readiness Level. The project team in Delft will continue on the basis of the existing 20 kW ground station and will focus on a new kite control unit, inflatable wing and sensor equipment. The project team in  Karlsruhe, a new player in the AWE community, will develop a 32 kW ground station.
      http://www.kitepower.eu/newsevents/81-kite-power-20/122-mission.html
      We are recruiting five engineers into the project:
      http://www.kitepower.eu/newsevents/81-kite-power-20/123-job-vacancies.html
      Contacts:
      Dr. Roland Schmehl,       r.schmehl@tudelft.nl
      Prof. Dr. Matthias Stripf,       matthias.stripf@hs-karlsruhe.de

       

      -- 
      -----------------------------------
      Dr.-Ing. Roland Schmehl
      Associate Professor
      Delft University of Technology
      Kite Power Research Group
      Wind Energy Section / Faculty of Aerospace Engineering
      Kluyverweg 1, 2629 HS Delft, The Netherlands
      T +31 15 278 5318
      M +31 61 495 6025
      F +31 15 278 3661
      E r.schmehl@tudelft.nl
      W www.kitepower.eu
      T www.twitter.com/kite_power
      G www.twitpic.com/photos/kite_power#type=gallery

       
      Group: AirborneWindEnergy Message: 13040 From: joe_f_90032 Date: 6/23/2014
      Subject: Kite-system-held slides

      Kite-system-held slides for lowering fluids, products, goods, supplies, animals, humans, machinery, and other items forms opportunities for the industrious and adventurous for recreation, industry, commerce, farming, emergency operations and other endeavors. 

      kPower CC by 4.0      CC BY NC SA

      ~ JoeF

      Thanks, Rod, for the tease path ...


      http://www.designboom.com/wp-content/uploads/2014/06/welsh-mining-cavern-hides-the-world-largest-underground-trampoline-designboom-04.jpg
      Group: AirborneWindEnergy Message: 13041 From: Rod Read Date: 6/25/2014
      Subject: H2 balloon communications
      Planned communications airship to use Hydrogen buoyancy.
      OK it's a gizmag link...
      But Thales are a fairly respectable bunch. One of my brothers works for them.

      One concern is the low quoted windspeed capability...

      According to the company, the StratoBus will be 70 to 100 meters long (230 to 328 ft), and 20 to 30 meters (66 to 98 ft) in width. Its envelope will be made mainly of UV-resistant woven carbon fiber, and its two fuel cell-powered prop motors will allow it to maintain its position, even when subjected to winds blowing at up to 90 km/h (56 mph).

      Better off using a kite of course...



      Rod Read

      Windswept and Interesting Limited
      15a Aiginis
      Isle of Lewis
      HS2 0PB

      07899057227
      01851 870878
      Group: AirborneWindEnergy Message: 13042 From: dave santos Date: 6/25/2014
      Subject: FAA Drone FARs in Flux
      The FAA, under mandate to ensure aviation safety, is resisting the early adoption of commercial drones loudly pushed by powerful advocates like Amazon and the US Congress. This wonky circus of contending interests is the natural slow working of governmental checks-and-balances. Safe pay-drones will emerge in the US NAS, in due time. AWES R&D is not directly affected, abiding in its special Limbo.

      Pirker v Huerta is a recent narrow judicial ruling pushing back at spotty FAA no-pay-drone enforcement. The FAA counters with new interpretations of FARs (and eventually new FARs)-

      http://www.faa.gov/about/initiatives/uas/media/model_aircraft_spec_rule.pdf

      http://www.kramerlevin.com/files/upload/PirkerDecision.pdf


      TACO 1.0 is a good background to FAA AWES drone issues-

      http://www.energykitesystems.net/CoopIP/TetheredAviationConOps.html


      Stay tuned for updated analysis, as we ponder the latest opinions.
      Group: AirborneWindEnergy Message: 13043 From: dave santos Date: 6/25/2014
      Subject: FAA UAS "Roadmap" and Comprehensive Plan
      Linked below are major recent FAA UAS background documents toward a finalized UAS policy by Sept., 2015. This is the long-view, compared to the flurry of minor court rulings and FARs interpretations-


      http://www.faa.gov/about/initiatives/uas/media/UAS_Roadmap_2013.pdf

      http://www.faa.gov/about/office_org/headquarters_offices/agi/reports/media/UAS_Comprehensive_Plan.pdf


      A related perspective from the UAS user/developer community-

      http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/20130011508.pdf
      Group: AirborneWindEnergy Message: 13044 From: dave santos Date: 6/25/2014
      Subject: Re: humans in giant 3d rigging and ocean current exploitation
      3D Rigging in free-space has a wonderful human future, as further suggested by this cave-case Rod provided. The rigger, Sean Taylor, who previously created the world's longest zip line, is warmly invited to apply his talent to kite-enabled Aerotecture and AWE (JoeF: please help find a forwarding address). 

      Again, we see tensile structure supplant massive ride machinery, for a comparable kinesthetic experience. The sky is scarcely the limit for these methods; only the next step...

      Bounce Below Cave Trampolines in Wales | HiConsumption


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

      As for Rod's second topic:

      Minesto faces serious competition for the choice Florida Current: WPI's NSF-funded study will soon present an alternative paravane architecture. kPower also offers underwater kite-energy concepts (passive low-complexity), close in principle with DaveO's WPI team (surfacegens, simpler hydrofoils, etc).


      On Monday, June 23, 2014 1:28 PM, "Rod Read rod.read@gmail.com [AirborneWindEnergy]" <AirborneWindEnergy@yahoogroups.com
      Group: AirborneWindEnergy Message: 13045 From: Rod Read Date: 6/26/2014
      Subject: Re: squealing brakes demo

      I wonder if a better configuration would be having the rotor setup more like the kitesat standard. where everything is down wind of the lifting kite anchor and tether. thereby the back lift line for the rotor could be more vertical.
      It may imply having to run around further in wind shifts...

      Roderick Read
      15a Aiginish
      Isle of Lewis
      HS2 0PB
      kitepowercoop.org

      Group: AirborneWindEnergy Message: 13046 From: dave santos Date: 6/26/2014
      Subject: Star Tower Kytoon
      A state-of-the-art aerostat/kite hybrid potentially suited to loft WECS payloads-

      http://www.globalnearspace.com/downloads/StarTower-Intro.pdf
      Group: AirborneWindEnergy Message: 13047 From: dave santos Date: 6/27/2014
      Subject: Fw: Fwd: Wind Globe



      Amazing real-time "wind globe" link forwarded by my pop; its an AWE crystal-ball-

      On Friday, June 27, 2014 5:21 AM, "QUINTI@" wrote:
      Group: AirborneWindEnergy Message: 13048 From: Rod Read Date: 6/27/2014
      Subject: Re: squealing brakes demo
      Finally, after the kite endured dogs abuse (a phrase not a habit)
      I got a part to break   yay

      My 9 yr old son was flying it against a downwind mast in our highest wind test yet ... with total disregard for his personal safety... and both his parents watching... he was getting hauled downwind with every gust. Kites battering off the mast, land, guys... After a few assisted upwind recoveries, we left him to fend for himself.
      A minute or so later the battle was won. The kites were repeatedly smashed off the ground until one kite was seen to go limp.

      we dropped the lift line and found the t joint (made out of a lump of plastic found in the harbour) sheared off at the t spar... not what I'd expected at all. Left with a tube of plastic over the ring stiffener and a loosened mast stiffener inside the kite.

      Next set will be made to clip / wrap or strap on to the ring.

      vid to follow. real fun testing. Old pals had a hoot flying it too.
      torque was up again... some pretty heavy deformations witnessed.

      It looked like the kite was trying to fly a tighter circle than the ring.
      A more laid back kite rig my improve inflation.

      The whole kit with guys pulleys and 3 other kites fits in a builders rubble sack and can be carried by 1 man.

      Rod Read

      Windswept and Interesting Limited
      15a Aiginis
      Isle of Lewis
      HS2 0PB

      07899057227
      01851 870878
      Group: AirborneWindEnergy Message: 13049 From: dave santos Date: 6/27/2014
      Subject: KITEnergy completes latest test round
      Sounds like more good news from Italy. Details pending-

      Twitter / kitenrg: We've just completed a test ...
      Group: AirborneWindEnergy Message: 13050 From: dave santos Date: 6/27/2014
      Subject: Re: squealing brakes demo
      Rod,

      You know most of this, but for those starting in kites-

      Use knotted leads to tune the foils' flying lines from over-advancing in a tighter loop, by shortening the wingtip line.

      Consider adding a third-line to the foils at their central TE, where most small two-line foils have a streamer-tail attachment point. A third-line powers-up the kite by slightly increasing AoA. It also reduces luff, prevents bow-tie state, and promotes consistent reinflation after collapse or relaunch.

      We learned to secure the third-line short on our main-line (your ring-sail margin shroud-line) setting a flatter wingtip with billowy root; for near-ideal helical-pitch overall. Third-lines will also retard your foils some, so if you "go third-line", retune the wingtip afterwards; if still needed,

      daveS


      On Friday, June 27, 2014 2:13 PM, "Rod Read rod.read@gmail.com [AirborneWindEnergy]" <AirborneWindEnergy@yahoogroups.com
      Group: AirborneWindEnergy Message: 13051 From: joe_f_90032 Date: 6/27/2014
      Subject: Re: Star Tower Kytoon
      Good to follow the company .. 
      But note: The first text claims patented "shape"; however, stay aware that maybe they can get some protection for the very exact line appearance shape of a product in a design patent (have not sought their details yet), but the functional mechanical shape of a kytoon that is employed is well known in kiting, inflatable wings ... ultralights, man-powered aircraft, hang gliders, and UAS kytoons.   Reflexed airfoils in wings and in inflated wings have been in the public domain. 
      Group: AirborneWindEnergy Message: 13052 From: dave santos Date: 6/28/2014
      Subject: Dutch Direct Investment in AWE (DSM, KLM, TUD, Greentech Fund, Mainp
      Our growing list of Dutch AWE institutional investors includes DSM, which partners with many EU teams with material assistance (Dyneema lines), but we overlooked (on the Forum) a direct investment in SkySails three years ago. DSM is more than a century old, beginning in mining and moving into materials, and is quite large, with close connections to SABIC. Counting SABIC (Dutch administered Saudi investment in KiteGen) and Ampyx's backers (KLM, Schiphol Rabobank, TUD; via the Dutch Greentech Fund and Mainport Innovation Fund), the Dutch are the most intensively invested in AWE of any nationality (per capita), with the Germans leading in sheer volume of investment (mostly SkySails). Dutch AWE investment leadership is quite apt, given the country's unmatched centuries-old wind power traditions.



       
      Group: AirborneWindEnergy Message: 13053 From: Rod Read Date: 6/28/2014
      Subject: Re: squealing brakes demo
      Thanks Dave,
      The "Third Line" to my collected ring line is surely worth a try soon.

      Because the driver kite parts have been chopped short and stitched onto the ring ... I fly the normally 2 line driver kites with 1 line from the wheel... the line bifurcates at a point 50cm from the first bridle on the tip side and 50cm from the 2 bridles on the root.
      The rest of the tip bridling has been spread out at ~10cm gaps along the line.

      Please share what you can about wing tip tuning in foil kites... I'd best get back on those kite forums.

      another solution may also be... instead of attaching the kites at 90deg from the ring tangent... a more swept back attachment would avoid the over rotating whilst improving driving and inflation ... without adding more rope dragging through the air.

      The solution wants more than just me searching for it.... especially as I spent today learning rotation... but in relation to gymnastics coaching... (got shown how to back flip too!!!) I'm 39.


      Rod Read

      Windswept and Interesting Limited
      15a Aiginis
      Isle of Lewis
      HS2 0PB

      07899057227
      01851 870878
      Group: AirborneWindEnergy Message: 13054 From: dave santos Date: 6/28/2014
      Subject: Re: squealing brakes demo
      Rod wrote: "Please share what you can about wing tip tuning in foil kites... I'd best get back on those kite forums."


      Please tell the kite forums to join AWE R&D, and share the good feedback you get. Here is a wingtip tuning overview-


      From root to tip, every point along the wing is tuned. Wingtip tuning often involves adding "washout"; setting a reduced tip angle-of-incidence for highest L/D. Adding drag-force with max lift-force, by increased angle-of-incidence, can pay off in higher total power-out, if higher loading and loss of wing velocity is acceptable (slower speeds also ease line-drag and form-drag). While our primitive prototypes use set tunings, continuously adjusting incidence angle will be useful to match changing wind conditions and load demand.

      Many racing foils have elaborate wingtip bridling, but simple works for our fatter centrifugically-stiffened foils. Often, excess bridle-lines can be removed for a cleaner lighter wing. C-lines and central crossover lines are obsolete, and can be removed with confidence. Rebridling is a powerful means to upgrade many a cheap kite. New bridles often require retuning due to poor or unsuitable factory tuning.

      Bank-angle is another foil tuning basic to looping foil AWES; such that shifting center-of-pressure adjusts turn-rate/radius.
      Group: AirborneWindEnergy Message: 13055 From: Rod Read Date: 6/29/2014
      Subject: Re: squealing brakes demo
      Dave,
      Thanks again for the advice...
      With reading & cross checking wiki's, web pages etc., I'm about 85% certain I get what your pointing toward.

      The stiffening & lengthening of my asymmetric foil has flattened it out making it much faster at the tip than it aught to be. resulting in over spinning the tip vs the root (thinner carbon rod and closing the outer end bridling back closer to a bunch may help... as long as I allow the whole kite to sit further back flatter to the wind ((is this what you mean by bank angle in this case?)) ... the tip won't be backed. nor falling inward.)

      We must all strive toward accessibility & clarity in our open documentation.
      plenty of pictures is key.

      Maybe we need to start on the authoritative parafoil rotor tuning document.
      Any volunteers able to bring relevant diagrams and descriptions?


      Rod Read

      Windswept and Interesting Limited
      15a Aiginis
      Isle of Lewis
      HS2 0PB

      07899057227
      01851 870878
      Group: AirborneWindEnergy Message: 13056 From: Rod Read Date: 6/30/2014
      Subject: Re: squealing brakes demo
      A collaborative document like this may help...
      Performance testing
      Anyone up for tweaking it

      Rod Read

      Windswept and Interesting Limited
      15a Aiginis
      Isle of Lewis
      HS2 0PB

      07899057227
      01851 870878