Messages in AirborneWindEnergy group.                          AWES 23480 to 23533 Page 362 of 440.
Group: AirborneWindEnergy Message: 23480 From: joe_f_90032 Date: 4/6/2018
Subject: Re: Ampyx Report

Group: AirborneWindEnergy Message: 23481 From: joe_f_90032 Date: 4/8/2018
Subject: Re: Ampyx Report

Group: AirborneWindEnergy Message: 23482 From: Hardensoft International Limited Date: 4/9/2018
Subject: Re: kPower demos AWE at Austin's 89th Kite Fest

Group: AirborneWindEnergy Message: 23483 From: joe_f_90032 Date: 4/9/2018
Subject: Re: Ampyx Report

Group: AirborneWindEnergy Message: 23484 From: joe_f_90032 Date: 4/12/2018
Subject: Inspect AWES with Drones

Group: AirborneWindEnergy Message: 23487 From: joe_f_90032 Date: 4/13/2018
Subject: https://physicsworld.com/a/an-airborne-solution-for-off-grid-energy/

Group: AirborneWindEnergy Message: 23489 From: dave santos Date: 4/16/2018
Subject: Bladetips Energy latest new player

Group: AirborneWindEnergy Message: 23490 From: dave santos Date: 4/16/2018
Subject: Bruce Banks Sails; mystery AWE player

Group: AirborneWindEnergy Message: 23491 From: joe_f_90032 Date: 4/16/2018
Subject: Re: Bladetips Energy latest new player

Group: AirborneWindEnergy Message: 23492 From: joe_f_90032 Date: 4/16/2018
Subject: Re: Bladetips Energy latest new player

Group: AirborneWindEnergy Message: 23493 From: joe_f_90032 Date: 4/16/2018
Subject: BVG Associates

Group: AirborneWindEnergy Message: 23494 From: joe_f_90032 Date: 4/16/2018
Subject: Re: Bladetips Energy latest new player

Group: AirborneWindEnergy Message: 23495 From: dave santos Date: 4/16/2018
Subject: Re: BVG Associates

Group: AirborneWindEnergy Message: 23496 From: dave santos Date: 4/16/2018
Subject: Re: Bladetips Energy latest new player

Group: AirborneWindEnergy Message: 23497 From: dave santos Date: 4/16/2018
Subject: Megascale Magnetic Thin-Film/Metamaterial AWES Generation (after Bea

Group: AirborneWindEnergy Message: 23498 From: dave santos Date: 4/16/2018
Subject: Re: Bladetips Energy latest new player

Group: AirborneWindEnergy Message: 23499 From: dave santos Date: 4/16/2018
Subject: Wheel Reinvention- Inflated Drop-stitch and Wind-Filled Single-Skin

Group: AirborneWindEnergy Message: 23500 From: joe_f_90032 Date: 4/16/2018
Subject: Isentropic

Group: AirborneWindEnergy Message: 23501 From: joe_f_90032 Date: 4/17/2018
Subject: Airborne Power to Replace Grounded Wind Power?

Group: AirborneWindEnergy Message: 23502 From: joe_f_90032 Date: 4/17/2018
Subject: "Airborne Wind Europe"

Group: AirborneWindEnergy Message: 23503 From: joe_f_90032 Date: 4/17/2018
Subject: Re: "Airborne Wind Europe"

Group: AirborneWindEnergy Message: 23504 From: joe_f_90032 Date: 4/19/2018
Subject: KiteX

Group: AirborneWindEnergy Message: 23505 From: joe_f_90032 Date: 4/19/2018
Subject: Re: KiteX

Group: AirborneWindEnergy Message: 23506 From: joe_f_90032 Date: 4/20/2018
Subject: Fault-Tolerant Power Electronic System for Drag Power Kites

Group: AirborneWindEnergy Message: 23508 From: joe_f_90032 Date: 4/24/2018
Subject: Distinguish "energy kite" from "energy drone"

Group: AirborneWindEnergy Message: 23509 From: Pierre BENHAIEM Date: 4/25/2018
Subject: Re: Distinguish "energy kite" from "energy drone"

Group: AirborneWindEnergy Message: 23510 From: dave santos Date: 4/26/2018
Subject: Re: Distinguish "energy kite" from "energy drone"

Group: AirborneWindEnergy Message: 23511 From: dave santos Date: 4/26/2018
Subject: AWE Pioneer Running for US Congress

Group: AirborneWindEnergy Message: 23512 From: joe_f_90032 Date: 4/28/2018
Subject: Early Greek Two-Anchor Arch Playsail

Group: AirborneWindEnergy Message: 23513 From: joe_f_90032 Date: 4/28/2018
Subject: Stratolaunch

Group: AirborneWindEnergy Message: 23514 From: joe_f_90032 Date: 5/1/2018
Subject: power beaming

Group: AirborneWindEnergy Message: 23515 From: joe_f_90032 Date: 5/4/2018
Subject: Re: Minesto news

Group: AirborneWindEnergy Message: 23516 From: joe_f_90032 Date: 5/4/2018
Subject: Re: Minesto news

Group: AirborneWindEnergy Message: 23517 From: joe_f_90032 Date: 5/4/2018
Subject: Mooring

Group: AirborneWindEnergy Message: 23518 From: dave santos Date: 5/5/2018
Subject: Re: Early Greek Two-Anchor Arch Playsail

Group: AirborneWindEnergy Message: 23519 From: Pierre BENHAIEM Date: 5/5/2018
Subject: Re: Mooring

Group: AirborneWindEnergy Message: 23520 From: joe_f_90032 Date: 5/5/2018
Subject: Re: Early Greek Two-Anchor Arch Playsail

Group: AirborneWindEnergy Message: 23521 From: joe_f_90032 Date: 5/5/2018
Subject: Re: Early Greek Two-Anchor Arch Playsail

Group: AirborneWindEnergy Message: 23522 From: dave santos Date: 5/5/2018
Subject: Re: Early Greek Two-Anchor Arch Playsail

Group: AirborneWindEnergy Message: 23523 From: dave santos Date: 5/5/2018
Subject: Re: Early Greek Two-Anchor Arch Playsail

Group: AirborneWindEnergy Message: 23524 From: joe_f_90032 Date: 5/6/2018
Subject: Re: Early Greek Two-Anchor Arch Playsail

Group: AirborneWindEnergy Message: 23525 From: dave santos Date: 5/9/2018
Subject: Mowing Grass with Kite: first demo

Group: AirborneWindEnergy Message: 23526 From: joe_f_90032 Date: 5/11/2018
Subject: Much thanks to Steve Tustison for wing donations

Group: AirborneWindEnergy Message: 23527 From: benhaiemp Date: 5/11/2018
Subject: Analysis of the Maximum Efficiency of Kite-Power Systems

Group: AirborneWindEnergy Message: 23528 From: joe_f_90032 Date: 5/11/2018
Subject: Re: Analysis of the Maximum Efficiency of Kite-Power Systems

Group: AirborneWindEnergy Message: 23529 From: joe_f_90032 Date: 5/12/2018
Subject: Dr. Graham Dudgeon in Wind Systems

Group: AirborneWindEnergy Message: 23530 From: dave santos Date: 5/15/2018
Subject: Re: Analysis of the Maximum Efficiency of Kite-Power Systems

Group: AirborneWindEnergy Message: 23531 From: dave santos Date: 5/15/2018
Subject: "Topologically Linked Polymers are Anyon Systems", etc.

Group: AirborneWindEnergy Message: 23532 From: dave santos Date: 5/15/2018
Subject: Re: "Topologically Linked Polymers are Anyon Systems", etc.

Group: AirborneWindEnergy Message: 23533 From: dave santos Date: 5/16/2018
Subject: Trump triggers Kite War in Gaza



Group: AirborneWindEnergy Message: 23480 From: joe_f_90032 Date: 4/6/2018
Subject: Re: Ampyx Report
APRIL 6, 2018

Airborne Wind Energy System (AWES) developer Ampyx Power today published a report with the results of a research into the offshore floating application of their system.
Group: AirborneWindEnergy Message: 23481 From: joe_f_90032 Date: 4/8/2018
Subject: Re: Ampyx Report
Group: AirborneWindEnergy Message: 23482 From: Hardensoft International Limited Date: 4/9/2018
Subject: Re: kPower demos AWE at Austin's 89th Kite Fest
Thanks, DaveS.
Keep the flag flying.

John Adeoye  Oyebanji  
___________________________________________________________________________________________________________________
Disclaimer and confidentiality note
This e-mail, its attachments and any rights attaching hereto are, and unless the content clearly indicates otherwise, remains the property of John Adeoye Oyebanji of Hardensoft International Limited, Lagos, Nigeria. 

It is confidential, private and intended for only the addressee.
Should you not be the addressee and receive this e-mail by mistake, kindly notify the sender, and delete this e-mail immediately.
Do not disclose or use it in any way. Views and opinions expressed in this e-mail are those of the sender unless clearly stated as those of some other.





 

The longest running kite fest in the Western Hemisphere, the Austin, Texas, Zilker Park Kite Festival, once again featured a kPower AWE demo (KiteSat7), as announced over the PA system. The demo flew between competitions on the main field with before ~20k attendees. One elite hacker stepped out of the crowd and joined kPower, more later on new talent as current work progresses on AWEfest capability.
Group: AirborneWindEnergy Message: 23483 From: joe_f_90032 Date: 4/9/2018
Subject: Re: Ampyx Report
Posting a phrase used in the topic space: 

 'aircraft-driven' airborne wind energy system

aircraft driven

?????????
Group: AirborneWindEnergy Message: 23484 From: joe_f_90032 Date: 4/12/2018
Subject: Inspect AWES with Drones

Inspection of AWES by various methods and self-status reporting have been in our attention some.  


Here is an inspection method by drone that could point to a future AWES inspection methods:   

https://www.youtube.com/watch?time_continue=2&v=f0VtWczvU6s



 
Group: AirborneWindEnergy Message: 23487 From: joe_f_90032 Date: 4/13/2018
Subject: https://physicsworld.com/a/an-airborne-solution-for-off-grid-energy/

https://physicsworld.com/a/an-airborne-solution-for-off-grid-energy/

An airborne solution for off-grid energy

13 Apr 2018 Margaret Harris===========

[ Sorry about wrong link in a post that was just removed from our forum. ]
Group: AirborneWindEnergy Message: 23489 From: dave santos Date: 4/16/2018
Subject: Bladetips Energy latest new player
Gipsa Lab graduate, Rogelio Lozano, is back on our radar with a AWES concept evoking earlier concept work by [insert name when recalled]-

http://bladetipsenergy.com/index.php
Group: AirborneWindEnergy Message: 23490 From: dave santos Date: 4/16/2018
Subject: Bruce Banks Sails; mystery AWE player
Mining the confused AWE buzz from Garner Insights, an IDTechEx look-alike, picking out anomalies like Banks (a KPS partner?)-

http://banks.co.uk/

While Garner's overall AWE analysis is naive and quasi-robotic, the mention of Open AWE, PierreB, Bladetips, and Banks stand out as unusual picks. Someone in India is struggling interestingly to come to a fresh appraisal of the AWE race. Equally weird is the relative omission of major AWE players casting the largest PR shadows. There are now so many players over so many years, that its increasingly hard to recall and sort out everyone, even for we who specialize in following developments. Winning horses should eventually emerge from the growing foggy tangle, but its anyone's guess just who and when. Remind us, who is BVG associates?

"Top manufacturers, with production, price, revenue (value) and market share for each manufacturer; the top players including: Bruce Banks Sails, National Wind Tunnel Facility (NWTF), Innovate, BVG Associates, e-Kite, Bladetips Energy, EnerKite, e-Wind Solutions, Open Source AWE, Pierre Benhaiem, Rotokite."

https://factsweek.com/497302/airborne-wind-energy-equipment-market-size-and-analysis-by-leading-manufacturers-with-its-application-and-forecast-2018-2025/
Group: AirborneWindEnergy Message: 23491 From: joe_f_90032 Date: 4/16/2018
Subject: Re: Bladetips Energy latest new player
Looks like a possible candidate for the page:
Group: AirborneWindEnergy Message: 23492 From: joe_f_90032 Date: 4/16/2018
Subject: Re: Bladetips Energy latest new player
Group: AirborneWindEnergy Message: 23493 From: joe_f_90032 Date: 4/16/2018
Subject: BVG Associates
Group: AirborneWindEnergy Message: 23494 From: joe_f_90032 Date: 4/16/2018
Subject: Re: Bladetips Energy latest new player
Partially related is our forum topic: 
Group: AirborneWindEnergy Message: 23495 From: dave santos Date: 4/16/2018
Subject: Re: BVG Associates
BVG looks to be a supply-chain developer and general technical consultant for KPS, rather than a stand-alone player, but still a very welcome addition.

Many such typical pieces of working industrialism can evolve and converge to whatever AWES architectures that prevail. In particular, the best people will migrate toward the historic solutions. Any new face may still come up with key insights. While AWE R&D seems to advance in fits-and-starts, and media attention comes and goes, its the slow steady relentless accumulation of knowledge and expert human capital that we can trust.

KPS is running the most serious and frugal program yet of the ongoing sucession of venture-leaders*, worthy of Scottish tradition. Magen, Joby, Makani, KiteGen, and Ampyx all ran circuses. Only KiteShip and SkySails matched KPS in low-complexity pragmatism, but were lost in the hype-storm years. Hoping BVG and KPS succeed as AWE's flagship venture, but they have to converge on a proper ship-kite scale power-kite AWES design, and its oh-so-close now, that someone gets AWE right at utility-scale...

--------------
* Of course there are a dozen or so small teams doing amazing things, a fifth-column of players that might advance to the top in an AWE M&A frenzy.
Group: AirborneWindEnergy Message: 23496 From: dave santos Date: 4/16/2018
Subject: Re: Bladetips Energy latest new player
Dr. Moore's CSR work is very relevant, but there was a sort of prior CSR (Centrifugally Stiffened Rotor) by two Brit engineers, specifically consisting of three ~wingtips~ that unreeled to launch, exactly as Rogelio depicts. It was patented a couple of decades or so ago, and then released. We corresponded with the lead inventor maybe eight years ago; now the name escapes me. Our Forum discussions also advanced this concept space.

The general problem with this scheme is a lack of a working prototype to explore operational feasibility. Its not a passive-control KIS AWES that anyone can make work.
Group: AirborneWindEnergy Message: 23497 From: dave santos Date: 4/16/2018
Subject: Megascale Magnetic Thin-Film/Metamaterial AWES Generation (after Bea
Beaujean's death was a tragic loss in AWE, on a par with losing Wubbo, and we never even got to meet him in our community. Its left to us to fulfill their confident visions of GW-scale AWES.

Beaujean's unique inspiration was that two giant counter-rotating soft-rotors can comprise a mighty unit-generator, but to do so required rethinking the physical basis of generation. B seemed to suggest the soft surfaces could be magnetic thin films (but did not rule out tracks and distributed standard gens). We then followed progress in electric scooter thin-film motor-gens without working how thin film magnetics might become a kite fabric flygen basis, until now.

The emerging gen idea is that two vast magnetic fabric surfaces can glide by each other and generate vast current. Air-pressure/vacuum or elastic force could keep surfaces close, while magnetic repulsion or air-cushion could progressively keep them from chaffing (reinvention of the magnetic or air bearing). A conductor/rectifier network would aggregate charges. In B's conception, rim load-motion is at its fastest, as the optimal case.

While a thin-film is typically nano-scaled in layering, our version might array many small magnets (mm scale) in fabric sandwiches, more of a metamaterial. This would not be hard to prototype, but might be incredibly worthwhile. A future generator might just be a sort of double-wall inflatable balloon, torqued at its poles but generating along its equator.

Open-AWE_IP-Cloud
Group: AirborneWindEnergy Message: 23498 From: dave santos Date: 4/16/2018
Subject: Re: Bladetips Energy latest new player
Recalling now, the probable originator of the Bladetips AWES down-select was-

"James Macnaghten" <james@isentropic.co.uk
A rather fine engineer IMHO
Group: AirborneWindEnergy Message: 23499 From: dave santos Date: 4/16/2018
Subject: Wheel Reinvention- Inflated Drop-stitch and Wind-Filled Single-Skin
We long ago reviewed drop-stitch fabric-inflatable cases like experimental airplane wings and popular standup paddle boards. Old ideas are seeds that sprout new ideas in due time. We can now see a drop-stitch line and bridle-line as equivalent mechanically, which suggests new possibilities.

How about drop-stitch wheels? They would have a high strength-to-mass and could be low drag slender compared to puffy non-drop-stitch inflated wheels. This is not quite an AWE idea yet, even for a kite buggy, so imagine pulley and gear wheels in the form of drop-stitch discs, for true airborne work. At larger scales, buoyant square-cube law lifting-volume advantage would eventually allow LTA parts. Inflated wheels on these principles may be the largest ever, in space or underwater as well. Some early space-stations were inflated tori, not quite the drop-stitch principle. Likely there are working wheels made by drop-stitch principle in some domain already, if not in AWE.

There is a direct geometric relation of flatness in proportion to bridling, between flat SS wings depending on multi-bridling, and flat drop-stitch inflatables. A flat bridled circular "drogue" could even be a novelty vehicle wheel. Add rotor slits, and its a motor-wheel. Ram-air wheels might have interesting uses. Should not every tire maintain optimal inflation by some sort of self inflation in use?

Open-AWE_IP-Cloud
Group: AirborneWindEnergy Message: 23500 From: joe_f_90032 Date: 4/16/2018
Subject: Isentropic

Isentropic

http://energykitesystems.net/0/Isentropic/index.html


Updated file with corrected links to documents. 

The company extended their findings for all. 
Group: AirborneWindEnergy Message: 23501 From: joe_f_90032 Date: 4/17/2018
Subject: Airborne Power to Replace Grounded Wind Power?

Airborne Power to Replace Grounded Wind Power?

April 16, 2018 Paul Gordon

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


???
Group: AirborneWindEnergy Message: 23502 From: joe_f_90032 Date: 4/17/2018
Subject: "Airborne Wind Europe"

"Airborne Wind Europe"  


Past: 

Airborne Wind Energy - Reaching Out For New Horizons 

Estrel Convention Center, 

Berlin, Germany 

Room III 

11 April 2018 16:40 - 17:00

Mr Kristian Petrick 

Business Development / Policy and Regulation


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

Clip from the page: 

Company Profile (Airborne Wind Europe) Airborne Wind Europe has been launched at the AWEC 2017 as Europe-wide AWE industry association aiming to support individual companies and the sector as a whole. : It is currently in the process of being officially established. Members will be AWE manufactures, clients (utilities and project developers), universities, suppliers and other stakeholders. It aims to raise the profile of the AWE sector and foster its development by providing advice on policies and regulation, sector and resource analysis, support for safety, certification and standardization, investor support, and communication and outreach activities.
Read more at: https://www.idtechex.com/energy-harvesting-europe/show/en/speakers/11716/airborne-wind-energy-reaching-out-for-new-horizons
Group: AirborneWindEnergy Message: 23503 From: joe_f_90032 Date: 4/17/2018
Subject: Re: "Airborne Wind Europe"
Policies for Airborne Wind Energy   36 pages, PDF
Preparing the grounds for AWE-specific incentive schemes – 
Scoping Study 
January 2018
Group: AirborneWindEnergy Message: 23504 From: joe_f_90032 Date: 4/19/2018
Subject: KiteX
Group: AirborneWindEnergy Message: 23505 From: joe_f_90032 Date: 4/19/2018
Subject: Re: KiteX
Group: AirborneWindEnergy Message: 23506 From: joe_f_90032 Date: 4/20/2018
Subject: Fault-Tolerant Power Electronic System for Drag Power Kites

Fault-Tolerant Power Electronic System for Drag Power Kites

April 2018

DOI10.1155/2018/1306750

LicenseCC BY 4.0

Florian BauerFlorian BauerRalph M. Kennel
Group: AirborneWindEnergy Message: 23508 From: joe_f_90032 Date: 4/24/2018
Subject: Distinguish "energy kite" from "energy drone"

Distinguish "energy kite" from "energy drone"


UAVs serving the energy industry are being called "energy drones." 

 E.g., "Energy Drone Coalition"


Different are "energy kites" or

 "energy kite systems." 

that work to generate electricity or do other good works.  aka: AWES, airborne wind energy systems. 
Group: AirborneWindEnergy Message: 23509 From: Pierre BENHAIEM Date: 4/25/2018
Subject: Re: Distinguish "energy kite" from "energy drone"

Hi Joe,

 

Indeed your link doesn't go towards tethered drone devices mentioning.

In the other hand here is a link https://medium.com/@udo_zillmann/producing-energy-with-drones-f73a6bd0b737 towards tethered "energy drone", also called "wind drone" explaining.

"Wind drones" are automated rigid kites for energy generation.

 

PierreB

 

 

 

 

 
Group: AirborneWindEnergy Message: 23510 From: dave santos Date: 4/26/2018
Subject: Re: Distinguish "energy kite" from "energy drone"
"Drone" is not a good term-of-art, since its popular meaning has changed so much. UAV, UAS, tethered foil, and other aerospace terms are more precise. Udo uses "wind drone" as a marketing term more than technical nomenclature, hoping to tap into vast "drone" investment. Excepting perhaps Udo, who will now have to compete for "wind drone" meaning, its no technical issue if the conventional wind industry chooses to call maintenance UAS "wind drones", nor should we waste time trying to enforce better "drone" usage. Our job is to just keep track of prevailing usage, and at most define and maintain proper "kite" usage. We properly use "kite" in many cases where "drone" usage is far less apt.
Group: AirborneWindEnergy Message: 23511 From: dave santos Date: 4/26/2018
Subject: AWE Pioneer Running for US Congress
This email seemed to fail when posted a few days ago; sorry if you got two copies, this one a bit more detailed-
------------------------------

Hats-off to Dimitri for his ongoing life-struggle to find his due place in this world. He has made odd mistakes, including in AWE, hitting bottom more than once, but apparently just keeps going with relentless noble efforts as well. If he does make the US Congress, we expect him to correct US DOE AWE Prize missteps.

https://www.charlestonchronicle.net/2018/04/18/dimitri-cherny-hopes-to-draw-voters-to-the-ballot-with-outside-the-box-thinking/
Group: AirborneWindEnergy Message: 23512 From: joe_f_90032 Date: 4/28/2018
Subject: Early Greek Two-Anchor Arch Playsail

At the tip from Dave Santos, this topic thread invites discussions on early Greek arch playsails where two anchors are used to stay the lifting wing or sail. Clothing, flags, shading tarps, sails,  etc. would perhaps be seeds for knowing the lifting effects of the wind on two-anchored sails. Search art, Greek mythology, and other records. Images? 

================================================================
Group: AirborneWindEnergy Message: 23513 From: joe_f_90032 Date: 4/28/2018
Subject: Stratolaunch

Stratolaunch

http://www.stratolaunch.com

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

AWES brainstorm regarding Stratolaunch?

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

?? : Launch wings that will drop smart-homing kiting anchors to begin AWE???


??


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

Topic started from a tip from Dave Santos. 

Thanks. 

===========================
Group: AirborneWindEnergy Message: 23514 From: joe_f_90032 Date: 5/1/2018
Subject: power beaming

Power Beaming

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

We have some prior posts on topic. 

But this is a focused topic now. 

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

AWES launching by power beaming?

Beaming AWES flygen power to ground or other aircraft?

... ?

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

Teasing start: 

Power Via Laser Beam Moves Closer To Reality

Apr 24, 2018
Group: AirborneWindEnergy Message: 23515 From: joe_f_90032 Date: 5/4/2018
Subject: Re: Minesto news
Mooring system installed at Holyhead Deep for DG500 tidal device
News: May 4, 2018
=======================================================
Group: AirborneWindEnergy Message: 23516 From: joe_f_90032 Date: 5/4/2018
Subject: Re: Minesto news
Subsea Riser Products' Rocksteady system
was modified for Minesto.

Related:   HERE.
Group: AirborneWindEnergy Message: 23517 From: joe_f_90032 Date: 5/4/2018
Subject: Mooring

Mooring systems

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

Start: 

https://www.youtube.com/watch?v=FDlldnlRVU4

Mooring the largest floating facility ever built | Shell's Prelude
Group: AirborneWindEnergy Message: 23518 From: dave santos Date: 5/5/2018
Subject: Re: Early Greek Two-Anchor Arch Playsail
Attachments :
    It turns out that playsail-arch kites are quite common in ancient Greco-Roman iconography. Attached is Neptune riding his chariot with a particularly clear example of a true kite flying at an elevated angle. The motif is also used with breeze nymphs and a moon goddess. A full study would be cool. The weird fact is these cases were overlooked by earlier kite historians seeking ancient kite examples.
    Group: AirborneWindEnergy Message: 23519 From: Pierre BENHAIEM Date: 5/5/2018
    Subject: Re: Mooring

    Seeing the video: it looks to be a catener mooring system. An other used type of mooring system is the tension-leg platform.

     

     

     

     
    Group: AirborneWindEnergy Message: 23520 From: joe_f_90032 Date: 5/5/2018
    Subject: Re: Early Greek Two-Anchor Arch Playsail
    Set of images among which the playsail or arch sail with two anchors may be identified: 
    Group: AirborneWindEnergy Message: 23521 From: joe_f_90032 Date: 5/5/2018
    Subject: Re: Early Greek Two-Anchor Arch Playsail
    Group: AirborneWindEnergy Message: 23522 From: dave santos Date: 5/5/2018
    Subject: Re: Early Greek Two-Anchor Arch Playsail
    To spot about two dozen playsail cases required a fairly long list of search terms in various combinations, including

    ancient greek god, goddess, or nymph (etc) +

    billowing (fabric, shawl, or robe, etc) +

    breeze or wind,

    Most of the evident case-base diversity was nymphs and goddesses. Sorry I could not do better linking and copying with my basic mailer.

    ===========

    Theoretic "Kid Question"-

    Might one not glide safely to Earth from a great height simply by holding a large untailored cloth correctly?

    We know this much- Let some TE fabric out, for a tighter LE. The optimal foil may have some reflex.
    Group: AirborneWindEnergy Message: 23523 From: dave santos Date: 5/5/2018
    Subject: Re: Early Greek Two-Anchor Arch Playsail
    Following Joe's hi-res image link, note the incredibly realistic luffing at two places along the LE. This is not the sort of detail a non-expert would capture. The two trailing ends also display characteristic dynamics. One end has correctly-handed helicity curled in its tip-vortex (entrainment), while the other end has fallen out of the opposite tip-vortex.

    Most likely the original artist was a master sailor, and Neptune was his natural deity.
    Group: AirborneWindEnergy Message: 23524 From: joe_f_90032 Date: 5/6/2018
    Subject: Re: Early Greek Two-Anchor Arch Playsail
    Group: AirborneWindEnergy Message: 23525 From: dave santos Date: 5/9/2018
    Subject: Mowing Grass with Kite: first demo
    Earlier today, at Oak Springs, Austin, kPower successfully demoed a push-mower converted to kite traction by a 9m2 PL PL.

    While this was a fun trick, harvesting biomass by kite may have a big future. Video soon...
    Group: AirborneWindEnergy Message: 23526 From: joe_f_90032 Date: 5/11/2018
    Subject: Much thanks to Steve Tustison for wing donations

    Much thanks to Steve Tustison for wing donations; he donated two used paraglider canopies to be used in kite energy experiments.   
    Group: AirborneWindEnergy Message: 23527 From: benhaiemp Date: 5/11/2018
    Subject: Analysis of the Maximum Efficiency of Kite-Power Systems

    https://infoscience.epfl.ch/record/207053/files/Costello_2015_JRSE_submission1.pdf; an interesting study about the real efficiency of both rigid and flexible kites. L/D ratio is not all. "Strength-to-weight ratio", "load factor" are interesting concepts and can be put into equations. See page 20 the compared study of the systems proposed by Ampyx and Skysails.
    Group: AirborneWindEnergy Message: 23528 From: joe_f_90032 Date: 5/11/2018
    Subject: Re: Analysis of the Maximum Efficiency of Kite-Power Systems
    S. Costello
    C. Costello
    G. François
    D. Bonvin
    Group: AirborneWindEnergy Message: 23529 From: joe_f_90032 Date: 5/12/2018
    Subject: Dr. Graham Dudgeon in Wind Systems

    Wind Systems is a paper printed publication by Media Solutions, Inc.;

    the April 2018 issue, Volume 10 Issue 04, section "CROSSWINDS"

    has a featured article beginning on page 53 by Dr. Graham Dudgeon that teases readers

    to notice AWE; KITEnergy and Ampyx Power are highlighted; a short quote was included 

    from Antonello Cherubini of Scuola Superiore Sant'Anna in Pisa, Italy, about the huge 

    potential of AWE. . Prior print-dominant AWE entities were noticeably fully absent from the text.


    The writer almost understood "turbine" relative to "kite" but dismissed the term even as he had to quote an AWE culture having kite as turbine. As he introduced readers to drone, he missed the opportunity to declare that the energy-drain phase of the drones was not to be seen as the AWE energy-production target.


    The author teased the readers to a decade ahead when reflecting sages might wonder why past ages fiddled with lower gusty intermittent winds. 
    Group: AirborneWindEnergy Message: 23530 From: dave santos Date: 5/15/2018
    Subject: Re: Analysis of the Maximum Efficiency of Kite-Power Systems
    Strength-to-weight, or equivalently power-to-weight in traditional aerodynamics, has been the "top" key number in Open-AWE here, since the AWES Forum started. Load-factor has been another key standard number with many names. Its expected that the EU academic community at least mentions these numbers in the ongoing profusion of so many confused venture claims, and overly complex (re)starting assumptions.

    What we are still waiting for is for the AWESCO EU players to find all the other key numbers we have identified. For example, there is what we may call the Train Number, or number of kites along a single tether. The lowest number is 1, one kite on one tether, which is unable to fly very high as efficiently as multiple kites on one tether (
    Other theoretic gaps are evident in this "old" 2015 paper, like greater unit scalability of a soft wing v. rigid, and LCOE with all its dimensions, like O&M, as a critical economic efficiency, or topologically protected kite networks*. There is still the false comparison of an Ampyx m2 and Skysails m2 by unit-area, without regard for cost or scalability. GIGO. There were good points here and there, like reminding how reasoning over average power avoids dealing with power phase complexity.

    Strip away all the over-analysis, and the Open-AWE POV is emergently evident in academic progress, that the most efficient theoretic AWES is the highest strength polymer maintained at its max working load, regardless of wind velocity. A quiver provides the final means to optimal kite-to-wind-to-load matching. Such ideas are golden needles in the EU conceptual haystack.

    ------------
    * Coming soon- More third-party academic validations for exotic polymer physics that Open-AWE pioneered. This is a further fertile POV for interpreting AWES efficiencies.
    Group: AirborneWindEnergy Message: 23531 From: dave santos Date: 5/15/2018
    Subject: "Topologically Linked Polymers are Anyon Systems", etc.
    Initially lacking the magic keyword jargon in the thicket of papers, it took a few years to refine searches to find exact validations for observed kite-based QM analogs. Now that, with studied ease, we increasingly find relevant literature, it turns out our amazed observations and interpretations are well supported. Finally, after ten years of groping to figure out what the classic dancing kite was really saying, we have numerous exact matches to formal theory.

    Our starting thermodynamics puzzle, of how a ship tow-rope can convey ~10MW of power without heating, is now resolved as the "anomalous heat conduction" potential predicted in polymer physics simulations, first explicitly observed by us in AWE. Observation matches prediction; how cool is that? A kite is identified as "self-dual", one more such of many known self-dual systems. Kiteline is a true "anyon" channel created in "topologically insulating" freespace. Kitepower is by "second sound", "ballistic conductance", and so on...

    Why does formal identification matter so? Advanced engineering of endless devices depends on the same shared physics, in readily explainable form. We are becoming adept at explaining kites to a wider scientific community. Two bull's-eye paper hits by two brilliant scholars, nailing most of our kite-QM bases-

    ------------------

    Topologically Linked Polymers are Anyon Systems
    Ferrari, 2004
    https://www.sciencedirect.com/science/article/pii/S0375960104002105

    CHAPTER 13
    THERMAL TRANSPORT IN POLYMERS
    Asegun Henry, 2014
    http://www.ase.gatech.edu/wp-content/uploads/2015/05/ARHT13-6949.pdf
    Group: AirborneWindEnergy Message: 23532 From: dave santos Date: 5/15/2018
    Subject: Re: "Topologically Linked Polymers are Anyon Systems", etc.
    Group: AirborneWindEnergy Message: 23533 From: dave santos Date: 5/16/2018
    Subject: Trump triggers Kite War in Gaza
    In reaction to Trump's provocative partisan move of the US Embassy in Israel to Jerusalem, Palestinian refugees in Gaza have risen up in protest, adopting Fire Kites as a resistance tactic against overwhelming firepower. Around 100 Palestinians have been killed, including children and journalists, with no Israeli losses. Trump seemingly could not care less over such loss of life. Pray for the victims, and demand a just resolution of longstanding conflict.

    A decade ago, Gaza Kids set the World Record for the most kites flying at once (
    Its heartbreaking to see how tragic things are going in Gaza.