Messages in AirborneWindEnergy group.                          AWES 22975 to 23024 Page 352 of 440.
Group: AirborneWindEnergy Message: 22975 From: joe_f_90032 Date: 8/29/2017
Subject: William R. Langley in Texas Law Review

Group: AirborneWindEnergy Message: 22976 From: Joe Faust Date: 8/29/2017
Subject: Re: William R. Langley in Texas Law Review

Group: AirborneWindEnergy Message: 22977 From: Joe Faust Date: 8/29/2017
Subject: Re: William R. Langley in Texas Law Review

Group: AirborneWindEnergy Message: 22978 From: joe_f_90032 Date: 8/29/2017
Subject: Popular Science, October 2014

Group: AirborneWindEnergy Message: 22979 From: joe_f_90032 Date: 8/29/2017
Subject: Re: Latest Altaeros News?

Group: AirborneWindEnergy Message: 22980 From: joe_f_90032 Date: 8/29/2017
Subject: Re: Latest Altaeros News?

Group: AirborneWindEnergy Message: 22981 From: joe_f_90032 Date: 8/29/2017
Subject: Re: Minesto news

Group: AirborneWindEnergy Message: 22982 From: joe_f_90032 Date: 8/30/2017
Subject: Re: Stiffening of an air beam

Group: AirborneWindEnergy Message: 22983 From: Joe Faust Date: 9/3/2017
Subject: Screen beach sand via use of energy from kite systems

Group: AirborneWindEnergy Message: 22984 From: Peter A. Sharp Date: 9/3/2017
Subject: Screen beach sand via use of energy from kite systems

Group: AirborneWindEnergy Message: 22985 From: Joe Faust Date: 9/3/2017
Subject: Rüdiger Gröning

Group: AirborneWindEnergy Message: 22986 From: gordon_sp Date: 9/3/2017
Subject: Re: Rüdiger Gröning

Group: AirborneWindEnergy Message: 22987 From: Peter A. Sharp Date: 9/3/2017
Subject: [AWES] Re: Rüdiger Gröning

Group: AirborneWindEnergy Message: 22988 From: joe_f_90032 Date: 9/4/2017
Subject: Re: [AWES] Re: Rüdiger Gröning

Group: AirborneWindEnergy Message: 22989 From: joe_f_90032 Date: 9/4/2017
Subject: Re: [AWES] Re: Rüdiger Gröning

Group: AirborneWindEnergy Message: 22990 From: joe_f_90032 Date: 9/4/2017
Subject: Re: [AWES] Re: Rüdiger Gröning

Group: AirborneWindEnergy Message: 22991 From: joe_f_90032 Date: 9/4/2017
Subject: Interlude

Group: AirborneWindEnergy Message: 22992 From: joe_f_90032 Date: 9/4/2017
Subject: Re: [AWES] Re: Rüdiger Gröning

Group: AirborneWindEnergy Message: 22993 From: joe_f_90032 Date: 9/4/2017
Subject: Re: Sharp Intermeshing VAWT; Sharp VAWT with Flyball Governor; Sharp

Group: AirborneWindEnergy Message: 22994 From: dave santos Date: 9/4/2017
Subject: Vision and Practice of Flight circa 1971

Group: AirborneWindEnergy Message: 22995 From: dave santos Date: 9/4/2017
Subject: Re: Sharp Intermeshing VAWT; Sharp VAWT with Flyball Governor; Sharp

Group: AirborneWindEnergy Message: 22996 From: dave santos Date: 9/4/2017
Subject: Re: Re: [AWES] Re: Rüdiger Gröning

Group: AirborneWindEnergy Message: 22997 From: dave santos Date: 9/4/2017
Subject: Chirality of AWES Turbines

Group: AirborneWindEnergy Message: 22998 From: joe_f_90032 Date: 9/5/2017
Subject: Re: Softbank plunks down 7.5M USD for Altaeros Equity

Group: AirborneWindEnergy Message: 22999 From: dave santos Date: 9/5/2017
Subject: Dancing Kite as Parametric Oscillator

Group: AirborneWindEnergy Message: 23000 From: dave santos Date: 9/5/2017
Subject: Re: Softbank plunks down 7.5M USD for Altaeros Equity

Group: AirborneWindEnergy Message: 23001 From: dave santos Date: 9/5/2017
Subject: KiteX; Danish AWE start-up

Group: AirborneWindEnergy Message: 23002 From: joe_f_90032 Date: 9/6/2017
Subject: Re: KiteX; Danish AWE start-up

Group: AirborneWindEnergy Message: 23003 From: joe_f_90032 Date: 9/6/2017
Subject: Author Jason Deign comments

Group: AirborneWindEnergy Message: 23004 From: joe_f_90032 Date: 9/6/2017
Subject: Re: Softbank plunks down 7.5M USD for Altaeros Equity

Group: AirborneWindEnergy Message: 23005 From: dave santos Date: 9/6/2017
Subject: Maiden Flight of Drive-Loop Looping-Foil at Texas AWE Encampment

Group: AirborneWindEnergy Message: 23006 From: dave santos Date: 9/6/2017
Subject: Rod's newly compact Daisy ground-station

Group: AirborneWindEnergy Message: 23007 From: joe_f_90032 Date: 9/7/2017
Subject: TDX Power

Group: AirborneWindEnergy Message: 23008 From: joe_f_90032 Date: 9/9/2017
Subject: Saraceno

Group: AirborneWindEnergy Message: 23009 From: joe_f_90032 Date: 9/9/2017
Subject: Re: Minesto news : 2017 summer new hires

Group: AirborneWindEnergy Message: 23010 From: dave santos Date: 9/11/2017
Subject: Re: Saraceno

Group: AirborneWindEnergy Message: 23011 From: dave santos Date: 9/11/2017
Subject: The kite's role in Wright Brothers' history, according to David McCu

Group: AirborneWindEnergy Message: 23012 From: dave santos Date: 9/11/2017
Subject: Avoiding tether-drag of sweeping foils in water currents

Group: AirborneWindEnergy Message: 23013 From: Joe Faust Date: 9/13/2017
Subject: Perovskite in Energy Kite Systems

Group: AirborneWindEnergy Message: 23014 From: joe_f_90032 Date: 9/13/2017
Subject: Surveillance balloon (tethered; kytoon) accident with helicopter

Group: AirborneWindEnergy Message: 23015 From: dave santos Date: 9/13/2017
Subject: Re: Surveillance balloon (tethered; kytoon) accident with helicopter

Group: AirborneWindEnergy Message: 23016 From: dave santos Date: 9/13/2017
Subject: Chanute's treasury of early flight dreamers and tinkerers

Group: AirborneWindEnergy Message: 23017 From: joe_f_90032 Date: 9/14/2017
Subject: Low-Tech Magazine on question of solar and wind alone

Group: AirborneWindEnergy Message: 23018 From: dave santos Date: 9/14/2017
Subject: Re: Low-Tech Magazine on question of solar and wind alone

Group: AirborneWindEnergy Message: 23019 From: joe_f_90032 Date: 9/14/2017
Subject: Re: Open Source AWE Automation? Reel-in/out for SkyMill

Group: AirborneWindEnergy Message: 23020 From: Olivier Normand Date: 9/14/2017
Subject: Re : Re: [AWES] Low-Tech Magazine on question of solar and wind alo

Group: AirborneWindEnergy Message: 23021 From: dave santos Date: 9/14/2017
Subject: Re: Re : Re: [AWES] Low-Tech Magazine on question of solar and wind

Group: AirborneWindEnergy Message: 23022 From: dave santos Date: 9/14/2017
Subject: Re: Open Source AWE Automation? Reel-in/out for SkyMill

Group: AirborneWindEnergy Message: 23023 From: dave santos Date: 9/15/2017
Subject: Fund Rod's Kite Car

Group: AirborneWindEnergy Message: 23024 From: joe_f_90032 Date: 9/16/2017
Subject: Re: Minesto news : 2017 summer new hires



Group: AirborneWindEnergy Message: 22975 From: joe_f_90032 Date: 8/29/2017
Subject: William R. Langley in Texas Law Review
Group: AirborneWindEnergy Message: 22976 From: Joe Faust Date: 8/29/2017
Subject: Re: William R. Langley in Texas Law Review
The linked Note year: 2015. 

====================
"Of course, the FAA also noted the difficulties of classifying airborne systems as a result of the design variety."
Group: AirborneWindEnergy Message: 22977 From: Joe Faust Date: 8/29/2017
Subject: Re: William R. Langley in Texas Law Review
Langley noted a key question: 
"So, what happens when landowners can benefit 
from the use of the wind thousands of feet 
above their properties?"
Group: AirborneWindEnergy Message: 22978 From: joe_f_90032 Date: 8/29/2017
Subject: Popular Science, October 2014
Group: AirborneWindEnergy Message: 22979 From: joe_f_90032 Date: 8/29/2017
Subject: Re: Latest Altaeros News?
Group: AirborneWindEnergy Message: 22980 From: joe_f_90032 Date: 8/29/2017
Subject: Re: Latest Altaeros News?
Altaeros has been sent a request for their potentially robust report on BAT experiments at or near Fairbanks, Alaska.    Maybe we will hear from them soon. 
Editor, 
Upper Windpower
Group: AirborneWindEnergy Message: 22981 From: joe_f_90032 Date: 8/29/2017
Subject: Re: Minesto news
Minesto's wing delivered: 
Linked article:

"Tidal wing flies to Minesto 
Green Marine supplies key component to Holyhead yard"

12 meters by 3.3 meters
3 tonnes
Group: AirborneWindEnergy Message: 22982 From: joe_f_90032 Date: 8/30/2017
Subject: Re: Stiffening of an air beam
Robust PhD final in PDF:    242 pages
ftp://iristor.vub.ac.be/patio/ARCH/pub/Lars%20De%20Laet/PhD_LarsDeLaet_final.pdf
DEPLOYABLE TENSAIRITY STRUCTURES development, design and analysis
Lars De Laet
March 2011 
Advisors: 
prof. 
dr. Marijke Mollaert 
dr. Rolf H. Luchsinger
=====================

Note: The study disallowed taking elements apart; the constraint for the study was that the parts stayed together in tote storage; then deployment meant that piecing together parts was not in the game. 
Hold out for other studies where such constraint is not required; that is, where piecing together parts is allowed; such would permit some construction options that are not possible in the "deployment" realm that is studied in the paper by Lars De Laet.
Group: AirborneWindEnergy Message: 22983 From: Joe Faust Date: 9/3/2017
Subject: Screen beach sand via use of energy from kite systems
Use the energy from a kite system to pull an item-sifting screen through the sand at a beach. 
Collect glass bottles, cans, wood, lost items, debris. In some localities beach mangers use powered vehicles to do the job of cleaning the sand that recreational beachgoers use.  Injuries from items hidden in sand prompts sand cleaning. 
Motivation images
Group: AirborneWindEnergy Message: 22984 From: Peter A. Sharp Date: 9/3/2017
Subject: Screen beach sand via use of energy from kite systems
Hi JoeF,
And/or removing plastics from oceans.
PeterS
Group: AirborneWindEnergy Message: 22985 From: Joe Faust Date: 9/3/2017
Subject: Rüdiger Gröning
Group: AirborneWindEnergy Message: 22986 From: gordon_sp Date: 9/3/2017
Subject: Re: Rüdiger Gröning
Notice the balanced counter-rotation to neutralize torque and prevent the whole device from rotating.

Gordon.
Group: AirborneWindEnergy Message: 22987 From: Peter A. Sharp Date: 9/3/2017
Subject: [AWES] Re: Rüdiger Gröning
Hi Gordon,
I don't see why there would be a net torque (without the counter-rotating
rotors) that would rotate the whole kite. Please explain.
PeterS
Group: AirborneWindEnergy Message: 22988 From: joe_f_90032 Date: 9/4/2017
Subject: Re: [AWES] Re: Rüdiger Gröning
PeterS' question is still up for facing. 
===================================
Group: AirborneWindEnergy Message: 22989 From: joe_f_90032 Date: 9/4/2017
Subject: Re: [AWES] Re: Rüdiger Gröning

PeterS' question is still up for facing. 
====================================

https://www.youtube.com/watch?v=56H2WuczvDI
Group: AirborneWindEnergy Message: 22990 From: joe_f_90032 Date: 9/4/2017
Subject: Re: [AWES] Re: Rüdiger Gröning
PeterS' question is still up for facing.

=====================
Group: AirborneWindEnergy Message: 22991 From: joe_f_90032 Date: 9/4/2017
Subject: Interlude

An interlude ...  while waiting for an answer from Altaeros about BAT near or in Fairbanks; a request for a report is outstanding.   


https://www.youtube.com/watch?v=bwgtTeoI76s
Group: AirborneWindEnergy Message: 22992 From: joe_f_90032 Date: 9/4/2017
Subject: Re: [AWES] Re: Rüdiger Gröning
https://www.youtube.com/watch?v=TsKoEjC_Xqk

Big Rotor Kite (by Rudiger Groning, Inventor of the Magic Wing Kite)
Group: AirborneWindEnergy Message: 22993 From: joe_f_90032 Date: 9/4/2017
Subject: Re: Sharp Intermeshing VAWT; Sharp VAWT with Flyball Governor; Sharp

1:20 PM (1 hour ago)


HI Joe,

Thank you for your help. Much appreciated.


You asked about what I learned. My mistaken assumption about the Sharp Intermeshing VAWT was that VAWT blades moving into the wind moved much faster on average than the blades moving away from the wind, so they should produce much more torque because lift is proportional to the square of the blade’s air speed. That seems logical, but it is incomplete.


What I failed to realize was that the reduced thrust on the upwind/receding (second quarter) blades left more energy in the wind for the downwind/receding (third quarter) blades to capture so as to make up for the reduced torque. I also failed to realize that the upwind/advancing (first quarter) blades took most of the energy out of the wind that passed through them, so there was little left for the advancing/downwind (fourth quarter) blades. Consequently, the energy capture on the two sides of the rotor (when facing the wind) are much more equal than I had assumed.


So I realized that an intermeshing Sharp Cycloturbine should not prove to be more efficient than a single Sharp Cycloturbine with the same swept area. It would probably be even less efficient due to the excessive drag created in the intermeshing section of the two rotors.


Here is the wind tunnel measurement of a fixed-blade VAWT that shows the torque produced at the various azimuth angles, for a fixed-blade H-rotor VAWT at a TSR of 4 when the blades no longer suffer from dynamic stall over much of their orbit. The wind speed is 7m/s.

http://etheses.whiterose.ac. uk/2722/1/JMEdwards_PhD_ thesis_Aug2012.pdf  See page 197 (computer page numbers).


The Sharp Cycloturbine should produce the same torque distribution at TSR from about 2 to about 4.


This 2012 PhD thesis by Edwards is especially good at explaining the complex behavior of fixed-blade H-rotor VAWT. His information is based on advanced testing techniques, not simulations, and he thinks and writes clearly. I do periodic searches of the literature and it took me 5 years to find this thesis.


If you wish to post this explanation of my error, you have my permission to do so.

Best Regards,

Peter Sharp


 ========

From: Joe Faust
Sent: Monday, September 04, 2017 11:29 AM
To: Peter 
Subject: Re: request to delete my document: "Sharp Intermeshing VAWT"

 

Hi Peter, 

    ... Done. Thanks. 

Let us know what you have learned. 

Best, 

JoeF

 

On Mon, Sep 4, 2017 at 10:31 AM, Peter A. Sharp <sharpencil@sbcglobal.net

Group: AirborneWindEnergy Message: 22994 From: dave santos Date: 9/4/2017
Subject: Vision and Practice of Flight circa 1971
Attachments :

    Situating AWE philosophically within a DIY grand tradition of dreaming of future flight and then living the dream, here is a Joe Faust document sample just four years before great Payne patented quintessential AWE concepts. The same ancient spirit-of-flight lives on, and its new way-of-being is relentlessly becoming; of living in the sky by means of kites and windpower. A full review of the exciting 60s era, when human flight truly came within broad popular reach, reveals many wild new flight ideas still fresh and growing, like "skytrees" (in another doc). Mo Tzu's human carrying kite began our "modern" era 2500 years ago. Progress has not been slow, but there is so far to go on the magic journey. The character of AWE and aerotecture progress is revealed as a slow quiet accumulation of community knowledge and art, not the quick burn-outs of despairing venture capitalists. The AWE dream is real; Wubbo Lives.



    		   @@attachment@@
    Group: AirborneWindEnergy Message: 22995 From: dave santos Date: 9/4/2017
    Subject: Re: Sharp Intermeshing VAWT; Sharp VAWT with Flyball Governor; Sharp
    While Edwards' Thesis provides a good review of VAWT research, worthy of the degree conferred, it does not provide any overall comparative assessment between HAWT and VAWT performance (minor comparisons are noted, like relative off-axis and start-up performance). In particular, Edward's blind spot is "There is no theoretical reasoning which suggests that the HAWT should outperform the VAWT, or vice versa". This is untrue in AWE theoretics.

    In AWE, as in aerospace engineering generally, power-to-mass of an airborne platform is the top design factor, and the HAWT is both theoretic and practical choice for RATs (ram air turbines for aircraft aux power) not just by power-to-mass but greater simplicity and compact stowing. Rephrase Edward's conceptual blind-spot, there is no theoretic reasoning which suggests that the HAWT is not the superior power-to-weight select for AWES or RATs.



     


    1:20 PM (1 hour ago)
    alt

    alt
    alt

    HI Joe,

    Thank you for your help. Much appreciated.


    You asked about what I learned. My mistaken assumption about the Sharp Intermeshing VAWT was that VAWT blades moving into the wind moved much faster on average than the blades moving away from the wind, so they should produce much more torque because lift is proportional to the square of the blade’s air speed. That seems logical, but it is incomplete.


    What I failed to realize was that the reduced thrust on the upwind/receding (second quarter) blades left more energy in the wind for the downwind/receding (third quarter) blades to capture so as to make up for the reduced torque. I also failed to realize that the upwind/advancing (first quarter) blades took most of the energy out of the wind that passed through them, so there was little left for the advancing/downwind (fourth quarter) blades. Consequently, the energy capture on the two sides of the rotor (when facing the wind) are much more equal than I had assumed.


    So I realized that an intermeshing Sharp Cycloturbine should not prove to be more efficient than a single Sharp Cycloturbine with the same swept area. It would probably be even less efficient due to the excessive drag created in the intermeshing section of the two rotors.


    Here is the wind tunnel measurement of a fixed-blade VAWT that shows the torque produced at the various azimuth angles, for a fixed-blade H-rotor VAWT at a TSR of 4 when the blades no longer suffer from dynamic stall over much of their orbit. The wind speed is 7m/s.

    http://etheses.whiterose.ac. uk/2722/1/JMEdwards_PhD_ thesis_Aug2012.pdf  See page 197 (computer page numbers).


    The Sharp Cycloturbine should produce the same torque distribution at TSR from about 2 to about 4.


    This 2012 PhD thesis by Edwards is especially good at explaining the complex behavior of fixed-blade H-rotor VAWT. His information is based on advanced testing techniques, not simulations, and he thinks and writes clearly. I do periodic searches of the literature and it took me 5 years to find this thesis.


    If you wish to post this explanation of my error, you have my permission to do so.

    Best Regards,

    Peter Sharp


     ========

    From: Joe Faust
    Sent: Monday, September 04, 2017 11:29 AM
    To: Peter 
    Subject: Re: request to delete my document: "Sharp Intermeshing VAWT"

     

    Hi Peter, 

        ... Done. Thanks. 

    Let us know what you have learned. 

    Best, 

    JoeF

     

    On Mon, Sep 4, 2017 at 10:31 AM, Peter A. Sharp <sharpencil@sbcglobal.net

    Posted by: joefaust333@gmail.com
    Reply via web post • Reply to sender • Reply to group • Start a New Topic • Messages in this topic (15)
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    AWES   Airborne Wind Energy Systems
    Kite-energy systems at work .
    Kited energy drones at work.
    ..


    Group: AirborneWindEnergy Message: 22996 From: dave santos Date: 9/4/2017
    Subject: Re: Re: [AWES] Re: Rüdiger Gröning
    The reason a single turbine develops asymmetric force skewed at an angle of attack is P-Factor. Its often simpler to just add a rudder input to correct (like SkyMill AWES) rather than require balanced rotations by mirror-twin left and right handed turbines.











     

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

    Big Rotor Kite (by Rudiger Groning, Inventor of the Magic Wing Kite)



    Posted by: joefaust333@gmail.com
    Reply via web post • Reply to sender • Reply to group • Start a New Topic • Messages in this topic (5)
    Have you tried the highest rated email app?
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    AWES   Airborne Wind Energy Systems
    Kite-energy systems at work .
    Kited energy drones at work.
    ..


    Group: AirborneWindEnergy Message: 22997 From: dave santos Date: 9/4/2017
    Subject: Chirality of AWES Turbines
    Turbine rotation is always chiral- "right-handed" or "left-handed"; "clockwise" or "counter-clockwise"; axially polarized depending on the frame of reference. There is no middle option for single turbines; one chooses a rotation direction without necessarily knowing any advantage one way or the other. The theoretic max-performance WECS design is not fully symmetric in blade pitch or profile, but these choices can matter more than overall chirality.

    In Nature, handedness is common, from turbine locomotion of microbes to boldly asymmetric crabs and subtle human asymmetries. Animals tend to wander turbine-like in circles of a given handedness. Symmetrical AWES may rotate in one direction for a specified term, then be re-rigged in reverse for another term, much as tires are rotated for maximum service life.

    Perhaps the least symmetric AWES in practice is the looping foil, as a single bladed turbine. Its quite effective nevertheless, and is not necessarily better if designed as a mirrored pair, like KPS intends, since a single unit meeting a rated output is simpler than two units, with less potential for interference or higher MTBF by doubled unit part-count. A kite farm may consist of all units of one handedness, for max design simplicity; or alternating handedness, for close-spacing or second fundamental harmonic phase locking of the ensemble.

    Both Makani and KPS claim asymmetric looping wing IP, but KiteLab did prior AWES art, and the asymmetric boomerang dates way back to the Upper Paleolithic, so handed turbines is a very old idea.
    Group: AirborneWindEnergy Message: 22998 From: joe_f_90032 Date: 9/5/2017
    Subject: Re: Softbank plunks down 7.5M USD for Altaeros Equity
    Super Tower
    SuperTower

    LTA kytoon solutions 

    The SuperTower sector is beyond the energy sector via the BAT.  The company seems to be riding both sectors. 
    Group: AirborneWindEnergy Message: 22999 From: dave santos Date: 9/5/2017
    Subject: Dancing Kite as Parametric Oscillator
    Aircraft in flight are aeroelastic parametric oscillators. Dancing in rising wind, a classic toy kite's motion reveals a spectrum of parametric oscillation (driven harmonic oscillation), with distinct modes. Mastering these inherent kite dynamics and extending them to kite lattices is a logical engineering path to large scale AWE.

    At lowest flyable wind velocity, kite flight is unstable to disturbance, and a single kite will easily fall out of the sky. At slightly higher constant velocity a single kite flies most steadily in place, and is even said to be "pasted to the sky", but always "hunting" infinitesimally in six dimensions of pitch, roll, yaw, surge, heave, and sway, as the kite's larger matter-wave scale* inertially damping small motions to near-imperceptibility. At the other end of the working wind spectrum, kite flight begins to fail by divergence from its dimensions of motion; heave may part the tether or yaw crash the kite, as example failure modes. Ganging kites into periodic arrays solves most of instability risk. The promotion of powerful pumping is the next challenge

    To develop powerful AWE pumping oscillations, various passive and active control strategies exist. The emerging golden principle of passive AWE control is for the kite or kite array to develop sustained resonant interaction with its own pilot-wave field. This field is the multiple wave-functions of internal phonons in the kite airframe, tether elasticity wave-functions, wave-functions for interconnected kites, lattice-wave wave-functions as well as air wave-functions for the aerodynamic near fields and far fields. Such wild combinatorics are computationally intractable, except in grossly simplified models, but specific experimental kite configurations provide empiric insights to inspire and test simple (first-order) models.

    KiteLab and kPower have discovered and actively explored resonant two-kite interactions that develop powerful pumping forces. In a typical configuration, a pilot-lifter kite provides flight stability, and a power kite of either looping-foil or flip-wing type drives a pumping action. The two distinct wave functions phase-lock when the pilot and power kite are well matched. A bit of shock cord helps smooth out the pumping cycle and bumps in the sky. The PTO at the ground bleeds off power in excess of that needed to maintain parametric oscillation. Note the topological similarity to tethered kite pairs (Payne, Wayne, etc.), but with parametric tuning engineered to support spontaneous self-resonance. In large kite arrays with long range crystal order, coherent lattice-wave wave functions dominate, and the math becomes tractable.

    kPower has a new super-simple looping-foil experiment to fly tomorrow, as a cool front moves over Austin. Its a single-pair kite-cell tested as a single parametric oscillator, hopefully useful alone at small scale, but also intended as a lattice-unit for large scale AWE, as a parametric oscillation metamaterial.




    ----------
    * matter waves calculated according to Re characteristic length, L, rather than Planck's Constant, h
    Group: AirborneWindEnergy Message: 23000 From: dave santos Date: 9/5/2017
    Subject: Re: Softbank plunks down 7.5M USD for Altaeros Equity
    AWE may still be a key supertower component, since it consumes energy aloft, and conductive tethers limit effective altitude It may be that the overall supertower system is the primary business value, and a problematic LTA-torus detail can revert to a suitable RAT or solar array under a COTS aerostat without much fuss. Adam and Ben are proven agile marketers, so the supertower app could keep them growing.

    It seems Alaska is still in play as an Altaeros beta site, despite the long delay. Lets hope they get it together, better late than never.



     

    Super Tower
    SuperTower

    LTA kytoon solutions 

    The SuperTower sector is beyond the energy sector via the BAT.  The company seems to be riding both sectors. 
    Posted by: joefaust333@gmail.com
    Reply via web post • Reply to sender • Reply to group • Start a New Topic • Messages in this topic (2)
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    AWES   Airborne Wind Energy Systems
    Kite-energy systems at work .
    Kited energy drones at work.
    ..


    Group: AirborneWindEnergy Message: 23001 From: dave santos Date: 9/5/2017
    Subject: KiteX; Danish AWE start-up
    KiteX of Copenhagen has a talented new team led by aerospace engineer Andreas Bruun Okholm, focusing on the dual-looping-foil AWES concept originated by Payne in 1975 and lately endorsed by Moritz's circle. Andreas had first hoped to work for Makani, but did not get picked up. KiteX's scale prototypes look exceptional, however scaling up dual rigid wings with adequate reliably will be very hard. While KiteX is well aware of a hundred or so other teams in AWE, its betting on being the only player in the dual-looper architectural space. Welcome to KiteX for filling that specific gap in AWE R&D, the more the merrier!

    With so many new players entering AWE R&D, its going to be a wild M&A phase as the early industry finally shakes out, and the best players are swept up into a few clearly leading ventures. KiteX seems to have been born ready to compete and thrive near the top of the pack, whatever happens. Even if the dual-looping-foil does not itself prevail, the terrific learning curve will put KiteX in good position to work on any AWES architecture that does take hold. Copenhagen is a great place to develop AWE, as I learned on a WoW scouting mission to Fano International Kite Fliers Meeting in 2011. Best of Luck to AWE's newest star-
    Group: AirborneWindEnergy Message: 23002 From: joe_f_90032 Date: 9/6/2017
    Subject: Re: KiteX; Danish AWE start-up

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

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    Blog

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    Some videos: 


    ===========================
    Group: AirborneWindEnergy Message: 23003 From: joe_f_90032 Date: 9/6/2017
    Subject: Author Jason Deign comments

    A Brief Guide to the Airborne Wind Turbine Market

    by Jason Deign          September 05, 2017

    ====== 
    Note the digging in by Google Makani in a seeming correction.

    Note how authors are still missing depth in their looksee. 
    Group: AirborneWindEnergy Message: 23004 From: joe_f_90032 Date: 9/6/2017
    Subject: Re: Softbank plunks down 7.5M USD for Altaeros Equity
    Yes, the BAT as potential RAT  !

    ========================
    Several inquiries to the company about "at or near Fairbanks" for BAT exploratory deal has yet to receive a reply.    Patience. 
    ========================
    Group: AirborneWindEnergy Message: 23005 From: dave santos Date: 9/6/2017
    Subject: Maiden Flight of Drive-Loop Looping-Foil at Texas AWE Encampment
    My awareness of looping-foil AWE potential dates back to 2006, when I joined KiteShip. Dave Culp, my first AWE mentor, had heard the Makani founding circle brainstorming about looping foils as the possible solution to AWE. I was sure that some sort of low-complexity softkite rig was possible, and began to puzzle out the essentials. Makani instead opted for a 2009 high-complexity E-VTOL rigid wing flygen downselect. By 2012, I had fully worked out an effective looping foil rig at kFarm, which beat Makani to "all-modes" AWES sessions, but the PTO required a second anchor, so it was not ideal. The latest drive-loop looping-foil develops high speed load-motion from a single anchor, so its a solid design advance.

    This morning's maiden flight at a park in Dripping Springs, TX, began in gusty conditions; always a fuss with kites, but a blessing for AWE testing-for-robustness. Dave Culp considered Central Texas winds the worst he had ever flown in, not complaining about the gift of high velocity, but about high differential surface heating creating extreme turbulence. First the 9m2 pilot-lifter went up, was kicked around wildly, but flew strongly. The drive loop was laid out with the 2m2 power-kite looper, and everything connected for the first time, and to the pilot-lifter.

    Up it all went, and flew for about two hours, with many upsets in the roiled wind, but it repeatedly self-recovered. Immediately, it was confirmed that the drive loop was being driven just as intended. Grabbing it with a roping glove made enough heat to hurt. The first time a rig flies, there are usually many tunings to refine, so much of time was spent wrestling the kites in the wind to make changes in lines. There were a few periods of smooth enough wind for the rig to loop nominally. One could not have asked for a better maiden flight in hairy wind. I have the test indications to further refine the geometry, going even higher into smoother air. Follow-on flights should only get better, including adding practical loads, from groundgens to water pumps.
    Group: AirborneWindEnergy Message: 23006 From: dave santos Date: 9/6/2017
    Subject: Rod's newly compact Daisy ground-station


    Note compact anchor unit at bottom of image
    Group: AirborneWindEnergy Message: 23007 From: joe_f_90032 Date: 9/7/2017
    Subject: TDX Power

    TDX Power

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

    http://www.tdxpower.com/

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

    In 2014:   “We are pleased to work with the Alaska Energy Authority and TDX Power to deploy our flexible, low cost power solution for remote communities,”   ~ Altaeros Energies


    We invite TDX Power to continue their interest in airborne wind energy sourcing. 


    “We are pleased to work with the Alaska Energy Authority and TDX Power to deploy our flexible, low cost power solution for remote communities,” stated Ben Glass, Altaeros Chief Executive Officer told ZME Science. “The project will generate enough energy to power over a dozen homes. The BAT can be transported and setup without the need for large cranes, towers, or underground foundations that have hampered past wind projects.”

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

    An article seemed quite optimistic about the prospect implied:

    "World’s first airborne wind farm feeds energy to remote Alaska
    LAST UPDATED ON  MARCH 25TH, 2014 AT 10:29 AM BY TIBI PUIU "

    ====================
    It would be interesting to have a report from TDX Power and Alaska Energy Authority about their current interest 
    in airborne wind energy, an infant in the renewable-energy mix.   And we await report from Altaeros about their 
    Alaskan experiments. 
    Group: AirborneWindEnergy Message: 23008 From: joe_f_90032 Date: 9/9/2017
    Subject: Saraceno

    The forum has various notes regarding some works of Tomás Saraceno.

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


    April 2017 at TED2017
    Would you live in a floating city in the sky?
    Group: AirborneWindEnergy Message: 23009 From: joe_f_90032 Date: 9/9/2017
    Subject: Re: Minesto news : 2017 summer new hires

    Minesto bolsters Welsh team with new hires


    • Dafydd Griffiths
    • Dylan Roberts

    • Phil Jennings

    • Ricky Molyneux
    Group: AirborneWindEnergy Message: 23010 From: dave santos Date: 9/11/2017
    Subject: Re: Saraceno
    Saraceno is a true visionary of future airborne life, but who relies on illusionistic images and impractical fancies to be mistaken for real (unlike Panamareko, who makes the same folly transparent). This TED talk is classic Saraceno blurring boundaries of aviation reality with beautiful imagery. Saraceno's ideal role today is like Moullinard's raving about flight over a century ago, to inspire others, like the Wright Brothers, to do what they cannot do themselves.

    Saraceno's declaration of an "Aerocene" is well taken, but lets be clear that Earth's complex Aerocene properly began long ago when spore then insect went airborne, and in human affairs, in falling in terror or jumping for joy, at the very beginning of pondering bird flight with awe and wonder. As for Saraceno's "Sky Day", to augment Earth Day, Jane Parker-Ambrose already created One Sky, One World, celebrated the second Sunday of every October.

    Mouillard will get his own topic once his English translations are found, but his French writing is a special treat, given his natural delirious lyricism-









     

    The forum has various notes regarding some works of Tomás Saraceno.

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


    April 2017 at TED2017
    Would you live in a floating city in the sky?

    Posted by: joefaust333@gmail.com
    Reply via web post • Reply to sender • Reply to group • Start a New Topic • Messages in this topic (1)
    Have you tried the highest rated email app?
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    AWES   Airborne Wind Energy Systems
    Kite-energy systems at work .
    Kited energy drones at work.
    ..


    Group: AirborneWindEnergy Message: 23011 From: dave santos Date: 9/11/2017
    Subject: The kite's role in Wright Brothers' history, according to David McCu
    Finally got to read McCullough's bestselling history, "The Wright Brothers", and recommend it to anyone who seeks "the right stuff" in pioneering flight research. McCullough starts out with a reference to Leonardo da Vinci claiming that a kite landed on his cradle as a baby, as a sort of fateful omen, just as we have become accustomed to kite history as a mix of magic and science, from our review of the work of Franklin and Pocock, as well as in literature, including Lord Byron and Mary Shelly.

    The kite figures like a family member in the Wright's story, but also flying toys generally, like Penaud's "bat" that the Wrights played with, in the manner of Euler's traditional identification of toys as profound physical-mathematical objects. Orville Wright is noted making kites at age ten for sale. As young bicycle mechanical geniuses and manufacturers, they were well prepared to triumph in flight. French journalism noted the Wrights seemed most intent to master the Chinese Diablo toy in Paris' parks, although they haunted the Louvre even more.

    McCullough reveals a formative episode of Wilbur Wright's early life, the brutal loss of his front teeth playing hockey from a sadistic figure who was later convicted as a serial killer. This trauma drove Wilbur's mind inward, and probably contributed to his early death at age 45. The kite proved the theraputic means to transcend this loss, incidentally inventing powered human flight. First the Wrights invented the four-line power-kite to advance their quest. The wing-warping principle employed remains the means that modern four-line soft power-kites are steered.

    The story of course is how the powered kite triumphed, but the wind-powered kite was never far from the narrative. Ridge-soaring perfected by the Wrights was a vital wind-powered stage that we recognize as AWE-based, especially in light of UFO concepts. Baden-Powell, a top human-lifting kite pioneer, and Marconi, using the same kites as Baden-Powell later, naturally became close to the Wrights. Santos-Dumont's first flyer depended on Hargrave's box kites as much as Chanute's ideas that the Wrights built on. Alexander Bell, in this same era, worked with kites. This was a true global kite culture at work, not just two Brothers. How little things have changed today, in AWE, where the kite remains "the thing". 
    Group: AirborneWindEnergy Message: 23012 From: dave santos Date: 9/11/2017
    Subject: Avoiding tether-drag of sweeping foils in water currents
    Tether-drag is a well known limit to high-speed sweeping both in air, and, even more so, in water. One way to eliminate sweeping tethers in water is to use bottom anchors or tethered surface buoys as the roots of a giant cantilever tacking hydrofoil designed for a fan-shaped crossflow rocking motion. No tethers are needed along the sweeping part, as the high structural mass required for a giant stiff cantilever foils (perhaps even ~0.5km long) is workable underwater, if not in air. Ram-turbine generators on the underwater wings would still be a likely means of energy harvesting. Buoys or anchors would passively offset, by heave, surge, sway interia, the high forces developed by the hydrofoils. Catamaran buoys might be ideal. Buoys' long anchor tethers would stay more or less static in place, without high-drag high-velocity sweeping. This is another wingmill class, as long discussed in varied WECS contexts.

    Open-AWE_IP-Cloud
    Group: AirborneWindEnergy Message: 23013 From: Joe Faust Date: 9/13/2017
    Subject: Perovskite in Energy Kite Systems
    ​Open:
    Perovskite in Energy Kite Systems
    =================================================

    =================================================
    Group: AirborneWindEnergy Message: 23014 From: joe_f_90032 Date: 9/13/2017
    Subject: Surveillance balloon (tethered; kytoon) accident with helicopter

    Safety

    Tether

    Known hazard


    Something went wrong: 


    Surveillance balloon hit by helicopter in crash that killed two RAF pilots in Afghanistan 'was a hazard' but did not restrict flying, commander tells inquest


    Clip quote: "Mr Cooper said he saw the lead Puma appear to fly toward the balloon tether before turning.

    But the second Puma did not follow suit, hitting the cable and then crashing nearby."
    Group: AirborneWindEnergy Message: 23015 From: dave santos Date: 9/13/2017
    Subject: Re: Surveillance balloon (tethered; kytoon) accident with helicopter
    Yes, we have noted a handful modern aircraft to airborne-tether mishaps. Of course, defensive barrage balloons caused uncounted collisions in two World Wars. Lets hope AWE somehow never kills anyone, and do our best to establish the brilliant safety-culture demanded.

    As described in the article by the airspace manager, modern airborne-tethers are considered a tolerable hazard-to-aviation rather than intolerable menace-to-aviation. No-fly tether-clearance zones of various sizes are recorded, and this one in a warzone was minimal. It seems that the break-off from formation flight by the following helicopter was a causal factor, the tether unnoticed in the visual field dominated by the lead helicopter.

    This is a classic case of a training gap that was not known before, but now stands revealed. The tragic lesson will be something like this: If leading a formation, do not turn late when approaching a hazard; if following in fornation, in hazardous airspace, know the airspace or follow the leader in turns, and only break formation into clear inspected airspace.

    NextGen capability will make it hard to lose track of any mapped obstacle in airspace and future airborne tethers will also perform sense-and-avoid of stray air-traffic. The US FAA requires AWES R&D to develop and practice sense-and-avoid.



     

    Safety

    Tether

    Known hazard


    Something went wrong: 


    Surveillance balloon hit by helicopter in crash that killed two RAF pilots in Afghanistan 'was a hazard' but did not restrict flying, commander tells inquest


    Clip quote: "Mr Cooper said he saw the lead Puma appear to fly toward the balloon tether before turning.

    But the second Puma did not follow suit, hitting the cable and then crashing nearby."
    Group: AirborneWindEnergy Message: 23016 From: dave santos Date: 9/13/2017
    Subject: Chanute's treasury of early flight dreamers and tinkerers
    Link at top below is to Dr. Octave Chanute's collected articles on HTA flight pioneers, soon leading up to the Wright Bros, who loved this stuff. Adding my own favorite, Goya, the painter, with his HG HPA batman-kiteman premonition linked at bottom. All such efforts as a whole, over millennia, were due preparation for ultimate technological success. Just so, success in AWE will draw on many fine sources, both humble and great.
    Group: AirborneWindEnergy Message: 23017 From: joe_f_90032 Date: 9/14/2017
    Subject: Low-Tech Magazine on question of solar and wind alone
    Group: AirborneWindEnergy Message: 23018 From: dave santos Date: 9/14/2017
    Subject: Re: Low-Tech Magazine on question of solar and wind alone
    Great to read Kris, a fan of low-tech AWE, as he continues to figure out how to live better tomorrow by not forgetting what has worked in the past. What he argues here is simple and radical- To achieve 100% renewable energy grids, given documented constraints, we just have to adapt to a few weeks a year of energy-shortage (65 days a year in UK), in effect only making hay when the sun shines.

    Call these natural shortages and surges energy-holidays. On a day without wind or sun, shut down the machines and let the people rest or play. When wind and sun peak, run everything full-blast. Learn once again to live life by Nature's rhythm; problem solved without fossil fuel and storage-based baseload energy.
    Group: AirborneWindEnergy Message: 23019 From: joe_f_90032 Date: 9/14/2017
    Subject: Re: Open Source AWE Automation? Reel-in/out for SkyMill
    Group: AirborneWindEnergy Message: 23020 From: Olivier Normand Date: 9/14/2017
    Subject: Re : Re: [AWES] Low-Tech Magazine on question of solar and wind alo
    is it possible to have the contacts of kris ? might be a good match for our beta test phase . 

    olivier 


    Envoyé depuis Yahoo Mail pour iPhone

    Le jeudi, septembre 14, 2017, 23:03, dave santos santos137@yahoo.com [AirborneWindEnergy] <AirborneWindEnergy@yahoogroups.com

    Group: AirborneWindEnergy Message: 23021 From: dave santos Date: 9/14/2017
    Subject: Re: Re : Re: [AWES] Low-Tech Magazine on question of solar and wind

    Hi Olivier,

    Kris' email is

    kris@lowtechmagazine.com

    Please say hi to Kris from the low-complexity kite-energy community, since its been a few years.

    If Rod Read, Pierre Benhaiem, Peter Sharp, and Dan Tracy have not applied as a beta testers, they are some of the best DIY AWE experimenters, if more units come available. Dan sold out his Pacific 40 flygen model. I am thinking a KiteWinder to power a 12V 7W FM radio transmitter, integrated by kPower into a briefcase, would be a great thing in a large refugee camp. kPower only has misc one-off prototypes, so KiteWinder's AWES would be better, for spare parts, etc.

    Everybody hopes KiteWinder succeeds in the market. I can ask top hobby kite industry leaders to carry your production model in their distribution networks, starting with Mike Lin of New Tech Kites, in Austin, in their elite designer's line, then David Gomberg, in Oregon, on down the list. Lets hope early sales volume leads to low-cost mass-production, for high volume sales as AWE's first hit product,

    daveS




     

    is it possible to have the contacts of kris ? might be a good match for our beta test phase . 


    olivier 


    Envoyé depuis Yahoo Mail pour iPhone

    Le jeudi, septembre 14, 2017, 23:03, dave santos santos137@yahoo.com [AirborneWindEnergy] <AirborneWindEnergy@yahoogroups.com

    Group: AirborneWindEnergy Message: 23022 From: dave santos Date: 9/14/2017
    Subject: Re: Open Source AWE Automation? Reel-in/out for SkyMill
    A good AWES comparison similarity case of rigid rotor v fabric decellerator. A shortage of expensive parachute silk motivated the development of this Aussie rotor substitute, as cheap strong nylon came along. An equivalent soft chute, especially a modern parafoil, weighs far less and packs far smaller at lower capital cost, but glides at comparable L/D. A solid rotor that somehow avoids mishaps could outlast a rag wing, but generally poses a greater safety risk by high velocity blade mass.
    Group: AirborneWindEnergy Message: 23023 From: dave santos Date: 9/15/2017
    Subject: Fund Rod's Kite Car
    Group: AirborneWindEnergy Message: 23024 From: joe_f_90032 Date: 9/16/2017
    Subject: Re: Minesto news : 2017 summer new hires

    More changes: 

    Minesto Strengthens its Commercial Position With Management Team Appointments

    New: 
    David Collier
    Bernt Erik 

    Leaving: 
    Heije Westberg