Messages in AirborneWindEnergy group.                          AWES 19010 to 19059 Page 274 of 440.
Group: AirborneWindEnergy Message: 19010 From: joe_f_90032 Date: 9/9/2015
Subject: Re: Groundgen PTO for TWTAK AWES

Group: AirborneWindEnergy Message: 19011 From: joe_f_90032 Date: 9/9/2015
Subject: Re: Groundgen PTO for TWTAK AWES

Group: AirborneWindEnergy Message: 19012 From: Rod Read Date: 9/9/2015
Subject: Re: Groundgen PTO for TWTAK AWES [1 Attachment]

Group: AirborneWindEnergy Message: 19013 From: Rod Read Date: 9/9/2015
Subject: Re: Groundgen PTO for TWTAK AWES

Group: AirborneWindEnergy Message: 19014 From: joe_f_90032 Date: 9/9/2015
Subject: Re: Groundgen PTO for TWTAK AWES

Group: AirborneWindEnergy Message: 19015 From: Rod Read Date: 9/9/2015
Subject: Re: Aerotecture Fall Safety Update

Group: AirborneWindEnergy Message: 19016 From: joe_f_90032 Date: 9/9/2015
Subject: Re: Groundgen PTO for TWTAK AWES

Group: AirborneWindEnergy Message: 19017 From: joe_f_90032 Date: 9/9/2015
Subject: Re: Groundgen PTO for TWTAK AWES

Group: AirborneWindEnergy Message: 19018 From: joe_f_90032 Date: 9/9/2015
Subject: Re: Groundgen PTO for TWTAK AWES

Group: AirborneWindEnergy Message: 19019 From: joe_f_90032 Date: 9/9/2015
Subject: Re: Groundgen PTO for TWTAK AWES

Group: AirborneWindEnergy Message: 19020 From: joe_f_90032 Date: 9/9/2015
Subject: Re: Groundgen PTO for TWTAK AWES

Group: AirborneWindEnergy Message: 19021 From: Rod Read Date: 9/9/2015
Subject: Re: Groundgen PTO for TWTAK AWES

Group: AirborneWindEnergy Message: 19022 From: joe_f_90032 Date: 9/9/2015
Subject: Re: FFAWE matters

Group: AirborneWindEnergy Message: 19023 From: joe_f_90032 Date: 9/9/2015
Subject: Re: Groundgen PTO for TWTAK AWES

Group: AirborneWindEnergy Message: 19024 From: dave santos Date: 9/9/2015
Subject: Re: Aerotecture Fall Safety Update

Group: AirborneWindEnergy Message: 19025 From: joe_f_90032 Date: 9/9/2015
Subject: Strong Fibers

Group: AirborneWindEnergy Message: 19026 From: joe_f_90032 Date: 9/9/2015
Subject: Re: Aerotecture Fall Safety Update

Group: AirborneWindEnergy Message: 19027 From: joe_f_90032 Date: 9/9/2015
Subject: Re: Aerotecture Fall Safety Update

Group: AirborneWindEnergy Message: 19028 From: joe_f_90032 Date: 9/9/2015
Subject: Re: Strong Fibers

Group: AirborneWindEnergy Message: 19029 From: joe_f_90032 Date: 9/9/2015
Subject: Re: Aerotecture Fall Safety Update

Group: AirborneWindEnergy Message: 19030 From: joe_f_90032 Date: 9/9/2015
Subject: Re: Aerotecture Fall Safety Update

Group: AirborneWindEnergy Message: 19031 From: dave santos Date: 9/10/2015
Subject: Re: Aerotecture Fall Safety Update

Group: AirborneWindEnergy Message: 19032 From: Rod Read Date: 9/10/2015
Subject: Re: Aerotecture Fall Safety Update

Group: AirborneWindEnergy Message: 19033 From: joe_f_90032 Date: 9/10/2015
Subject: Re: Spinnaker Kiting Demo

Group: AirborneWindEnergy Message: 19034 From: dave santos Date: 9/10/2015
Subject: Re: Spinnaker Kiting Demo [1 Attachment]

Group: AirborneWindEnergy Message: 19035 From: joe_f_90032 Date: 9/10/2015
Subject: Lines with shaped surfaces and varied cross section

Group: AirborneWindEnergy Message: 19036 From: joe_f_90032 Date: 9/10/2015
Subject: Re: FFAWE matters

Group: AirborneWindEnergy Message: 19037 From: joe_f_90032 Date: 9/10/2015
Subject: Strutless Kites: Strut Your Stuff. Or Not.

Group: AirborneWindEnergy Message: 19038 From: joe_f_90032 Date: 9/10/2015
Subject: Re: Lloyd Biscomb with WIPO patent under PCT, priority 1979

Group: AirborneWindEnergy Message: 19039 From: joe_f_90032 Date: 9/10/2015
Subject: Wave Hub

Group: AirborneWindEnergy Message: 19040 From: joe_f_90032 Date: 9/10/2015
Subject: Re: Welcoming eWndSolutions to AWE

Group: AirborneWindEnergy Message: 19041 From: joe_f_90032 Date: 9/10/2015
Subject: Re: Rotating Reeling in AWEC2015

Group: AirborneWindEnergy Message: 19042 From: joe_f_90032 Date: 9/10/2015
Subject: Re: Welcoming eWndSolutions to AWE

Group: AirborneWindEnergy Message: 19043 From: joe_f_90032 Date: 9/10/2015
Subject: Re: Welcoming eWndSolutions to AWE

Group: AirborneWindEnergy Message: 19044 From: Rod Read Date: 9/11/2015
Subject: Good and bad news from TU Delft

Group: AirborneWindEnergy Message: 19045 From: dave santos Date: 9/11/2015
Subject: Re: Good and bad news from TU Delft

Group: AirborneWindEnergy Message: 19046 From: dave santos Date: 9/11/2015
Subject: Re: Strutless Kites: Strut Your Stuff. Or Not.

Group: AirborneWindEnergy Message: 19047 From: dave santos Date: 9/11/2015
Subject: Re: Lines with shaped surfaces and varied cross section

Group: AirborneWindEnergy Message: 19048 From: benhaiemp Date: 9/11/2015
Subject: Re: Rotating Reeling in AWEC2015

Group: AirborneWindEnergy Message: 19049 From: joe_f_90032 Date: 9/11/2015
Subject: Re: Lines with shaped surfaces and varied cross section

Group: AirborneWindEnergy Message: 19050 From: joe_f_90032 Date: 9/11/2015
Subject: Uwe Fechner

Group: AirborneWindEnergy Message: 19051 From: joe_f_90032 Date: 9/11/2015
Subject: Re: Spider silk

Group: AirborneWindEnergy Message: 19052 From: dave santos Date: 9/11/2015
Subject: Successful ram-air AB-Dome and fall-cushion field-test (kPower)

Group: AirborneWindEnergy Message: 19053 From: joe_f_90032 Date: 9/11/2015
Subject: Re: Successful ram-air AB-Dome and fall-cushion field-test (kPower)

Group: AirborneWindEnergy Message: 19054 From: joe_f_90032 Date: 9/11/2015
Subject: Re: Lines with shaped surfaces and varied cross section

Group: AirborneWindEnergy Message: 19055 From: dave santos Date: 9/11/2015
Subject: Re: Uwe Fechner

Group: AirborneWindEnergy Message: 19056 From: Rod Read Date: 9/11/2015
Subject: Re: Successful ram-air AB-Dome and fall-cushion field-test (kPower)

Group: AirborneWindEnergy Message: 19057 From: dave santos Date: 9/12/2015
Subject: 2016 Conference Planning?

Group: AirborneWindEnergy Message: 19058 From: dave santos Date: 9/12/2015
Subject: Re: Strutless Kites: Strut Your Stuff. Or Not.

Group: AirborneWindEnergy Message: 19059 From: Pierre BENHAIEM Date: 9/13/2015
Subject: Re: Successful ram-air AB-Dome and fall-cushion field-test (kPower)



Group: AirborneWindEnergy Message: 19010 From: joe_f_90032 Date: 9/9/2015
Subject: Re: Groundgen PTO for TWTAK AWES
Fifth TWTAK PTO mode:

Tributaries to a main line?  Have TWTAK; from it drop lines rooted on LL between TW unit wings; let those drop lines at their LL root act as fence TW station keepers, but then let the further drop lines gather below to a main line to aggregate lifting oscillations; use the lifting oscillations to drive various loads, including the driving of an electric generator on the ground. Other loads could be simple entertaining lifting of people, pumping water, cutting logs, polishing gems, etc.  The unit TWTAK holding many TWs may be repeated at kite farm and integrated and/or aggregated in various ways.    Sketch is attached.
   @@attachment@@
Group: AirborneWindEnergy Message: 19011 From: joe_f_90032 Date: 9/9/2015
Subject: Re: Groundgen PTO for TWTAK AWES
Attachments :

    Sixth PTO for TWTAK

    Auxiliary line or auxiliary line sets for various uses:

    Notice that the text on the sketch does not mention what is now added here:

    The auxiliary line held by drop or rising TW-station-keeping lines may be used to hold another set of TW element wings which again may have continuation of the TW-station-keeping away lines (drop or rise or ball-back) to hold yet another LL of  TWs, etc. until a flying curtain of sub-units of TWTAKs are flying.


    Sketch has some text on it: See attachment.


    		   @@attachment@@
    Group: AirborneWindEnergy Message: 19012 From: Rod Read Date: 9/9/2015
    Subject: Re: Groundgen PTO for TWTAK AWES [1 Attachment]
    I like that sketch.
    However, I'd bet that cascading the bridling is a better idea.


    Rod Read

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

    07899057227
    01851 870878
    Group: AirborneWindEnergy Message: 19013 From: Rod Read Date: 9/9/2015
    Subject: Re: Groundgen PTO for TWTAK AWES
    Don't see myself trusting.. not to take a tumble through the tumbling net

    Rod Read

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

    07899057227
    01851 870878
    Group: AirborneWindEnergy Message: 19014 From: joe_f_90032 Date: 9/9/2015
    Subject: Re: Groundgen PTO for TWTAK AWES
    Attachments :

      Seventh PTO: 

      Passive Mountain Shaking

      See attached sketch


      Strategic configuration of the mountain of TWs in complex TWTAK results in oscillating tension at anchors that may be used for PTO.


      		  @@attachment@@
      Group: AirborneWindEnergy Message: 19015 From: Rod Read Date: 9/9/2015
      Subject: Re: Aerotecture Fall Safety Update
      You'd be doing well to catch anything between two skybow arches, two rolling bags, two tumbling mangle bars, two freely rolling anything

      Rod Read

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

      07899057227
      01851 870878
      Group: AirborneWindEnergy Message: 19016 From: joe_f_90032 Date: 9/9/2015
      Subject: Re: Groundgen PTO for TWTAK AWES

      Yes, Rod, cascading bridling in arches to loads is well established (power kiting bridles, pargaglider bridles, material-handling cascading bridles (Storm Dunker  PDF). The drop lines are a mini-cascade. Shown was a particular scheme to just have an auxiliary lower long line; then extrapolate to netting and mountain building, etc. Fences, curtains, cascading arches integrated, dome filling, tenting, roofing, ...
      Group: AirborneWindEnergy Message: 19017 From: joe_f_90032 Date: 9/9/2015
      Subject: Re: Groundgen PTO for TWTAK AWES

      Eighth PTO for TWTAK


      Worm-screw LL in TWTAK

      Have the LL specially designed to be a long worm screw. Have TW on TWTAK with bearings with nob fitting the worm screw. The autorotation results in the TW traveling the worm-screw.  Transport materials and people across the sky arch.  The traveling TW may be on main LL or on an auxiliary line hung from the main TWTAK complex.


      Alternative: Have non-worm-screw LL, but have the TW bearing with a veering climb resultant that causes travel along the line from one side to another.


      Alternative:  Have the traveling TW be with a veering design that favors travel to left or to right.

      Alternative here: Have the veering controllable either passively or actively; sail veer one direction; then trigger to sail the other direction.  As the TW autorotates, the veering design causes travel along the LL..  One or more TW element wings may be ganged to all veer in one direction and then the other direction on a base LL.

      Group: AirborneWindEnergy Message: 19018 From: joe_f_90032 Date: 9/9/2015
      Subject: Re: Groundgen PTO for TWTAK AWES
      Attachments :

      Ninth PTO for TWTAK


      Line Laundry Ring of Veering TWs set to torque a lifted generator


      Set a ring of veering TW swith moving station-keeping bridles; have those bridles come together to torque the shaft of  a generator  lifted by a kite system.  

      		   @@attachment@@
      Group: AirborneWindEnergy Message: 19019 From: joe_f_90032 Date: 9/9/2015
      Subject: Re: Groundgen PTO for TWTAK AWES

      Tenth PTO


      Self-lighted TWs on TWTAK


      Have TWTAK. Have each TW or a select subset of the TWs on the TWTAK

      to feature bearings that do form with bearing part a generator that puts electricity into LED load.

      This note might be a repeat of a former note, in part.  Damp the autorotation just enough to keep the TW flying while still trickling some energy for lighting, perhaps by choice: save energy to a threshold amount in a capacitor and then trigger release of pulse to give pulsating lighting.  Scale PTO along this scheme to fit other loads.   The capacitor storing of energy and occasional release or use of the energy provides a route to many uses aloft.  The TW material construction could be to support capacitor function.
      Group: AirborneWindEnergy Message: 19020 From: joe_f_90032 Date: 9/9/2015
      Subject: Re: Groundgen PTO for TWTAK AWES

      Eleventh PTO in the mini-toy world:


      Use the energy of the TWTAK to excite playful adults and children around the world.

      Have a mini-TWTAK in pocket, say the size of a fat writing pen case: Inside the case have a TW set. Wrap the case with spider line. Have the TWs with free bearings. Where there is a slight indoor or outdoor breeze, pull out he TWs and let the line out; set two anchors (more fun to have two playful persons hold one anchor) and fly the TWTAK in ambient breeze (or even have fun simply with two persons walking the line anchors ...keep the persons appropriate distance apart).      The arch and tumbling will excite the playful persons. During the time they are having fun, they will not be driving ICE cars; save energy by use of mini TWTAK.   Perhaps use the mini-toy TWTAK to advertise AWE. Plans can be easy and simple.   Turn confetti to TWTAK by simply adding free bearings by glue or tape. Use pine needle pair or similar fid to thread spider line through the free bearings. Various station keepers may be employed or not.  S curving TW help.  Fun begins. Mini-TWTAK can be even simpler by slot punching or hole in end flange for free bearing (thus no added part).  A version has been proved to be perhaps the most simple and quickest-to-make kite system of all time; up it goes and rotating at that.


      Note about TWTAK:  Scaling down is very fun.   Scaling up is challenging.   Huge count of small TWs to form long TWTAKs  and complex TWTAKs invites care.



      Note on TWTAK:    When flywheels are used, one of the uses of the wheels may be the following:

      Have the TWTAK on ground; see how ambient breeze may roll the wheel-involved TWs in the downwind direction with top part of wing going downwind; this action and orientation is exactly what is needed for self-launching and self-relaunching of the arch of TWs.  Flywheels need not saturate all the TWs to obtain such launching benefit.   Sparse flywheels can serve such purpose, as cascaded launch then may occur.

      Group: AirborneWindEnergy Message: 19021 From: Rod Read Date: 9/9/2015
      Subject: Re: Groundgen PTO for TWTAK AWES
      Maybe a lattice of  TW could serve as a rolling wind measuring / shear plane highlighting tool

      Where the speeds of a volume of air are all measured at once in multiple locations... kinda lidar but pretty.

      Rod Read

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

      07899057227
      01851 870878
      Group: AirborneWindEnergy Message: 19022 From: joe_f_90032 Date: 9/9/2015
      Subject: Re: FFAWE matters

      The FFAWE system called kiteboarding is only rarely discussed simply as a kite system, but it can be done occasionally and with increased care. The air aloft wing of the kite system is easy to hold in the light; the kite lines go to another wing set below: the complex of harness-person-board. That below wing set has all the rights to be a "wing: as the air wing above. The below wing resists the upper wing; the upper wing resists the low wing complex. Water paravanes in such kiteboarding kite systems may be designed even to have the paravane dig deep into the water to far depths to do various works. In support of the AWES kiteboarding, here is a note about the wing part called kiteboard:


      How design & tech determine kiteboard performance


      Archetypical kite is indeed a coupling of two wing sets that resist each other via a line set while the wing sets and line set are in media that have some differential in energy.  The wing sets and line set are converting energy from one sort to another.  Much can be done with such arrangements; such is the essence of AWE. 
      Group: AirborneWindEnergy Message: 19023 From: joe_f_90032 Date: 9/9/2015
      Subject: Re: Groundgen PTO for TWTAK AWES

      Right-on, Rod! 

      Yes, each TW in a broad lattice could report its rotation rate.

      The thousands of reports could be computed to show the windfield.

      Nice.

      Group: AirborneWindEnergy Message: 19024 From: dave santos Date: 9/9/2015
      Subject: Re: Aerotecture Fall Safety Update
      We explored parachute fall-protection in the past, with the following observations-

      - Expert users are required, especially at low base-jump altitudes
      - A death hazard zone remains between ~5m and ~50m high (below practical base-jump height)
      - An pre-inflated parachute adds lift while cutting dead-load and opening delay

      So the quest for fall nets, ram-air cushions, crash-capsules, etc. is motivated by the big gaps parachutes leave. We get by for now with pro dare-devil pilot types, but the ultimate aerotechural goal is safe comfortable living aloft for all. The necessary design study has scarcely begun, but we know what to test and perfect (with our DIY crash-dummies).



      On Wednesday, September 9, 2015 7:36 AM, "Rod Read rod.read@gmail.com [AirborneWindEnergy]" <AirborneWindEnergy@yahoogroups.com  
      You'd be doing well to catch anything between two skybow arches, two rolling bags, two tumbling mangle bars, two freely rolling anything

      Rod Read

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

      07899057227
      01851 870878
      Group: AirborneWindEnergy Message: 19025 From: joe_f_90032 Date: 9/9/2015
      Subject: Strong Fibers

      Strong fiber notes are welcome in this topic thread.  The aim is to have good preparation to fit lines to niche AWES  systems.  System designers may do best when they have robust knowledge of fiber options for lines, sails, anchor systems.  

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


      Start:

      This article's title caught my eye:

      SEA SNAIL’S TEETH JUST DETHRONED SPIDER SILK AS THE STRONGEST BIOLOGICAL MATERIAL
      INTRODUCING THE LIMPET AS THE HEAVYWEIGHT CHAMPION OF THE ANIMAL KINGDOM
      By Lydia Ramsey  Posted February 18, 2015

          

      Group: AirborneWindEnergy Message: 19026 From: joe_f_90032 Date: 9/9/2015
      Subject: Re: Aerotecture Fall Safety Update

      One of the joys I have on walks is the viewing of the great variety of objects caught in spider webs. The objects had fallen into the webs or blown into the web. Leaves, animals, feathers, twigs, papers,  ...

      What is the largest mesh that would still give safety for falling humans? 


      Welcome to pearlweave


       
      Group: AirborneWindEnergy Message: 19027 From: joe_f_90032 Date: 9/9/2015
      Subject: Re: Aerotecture Fall Safety Update

      Have a very large-mesh net hoisted. Let a falling human splay out several lines with hooks on them; let the hooks catch the lines of the net. Let the net have very much "give" when being stressed by the forces of a falling human. The splaying lines would be shot out from the falling human upon the system reading accelerations for extended time that match the pattern of free fall.


      Group: AirborneWindEnergy Message: 19028 From: joe_f_90032 Date: 9/9/2015
      Subject: Re: Strong Fibers

      A 2012 note:

      The world's strongest fibres


      01 February 2012

      Clipped quote: "The toughest polymer yarn of all time has been made by mixing a polymer with sheets of reduced graphene oxide (RGOF) and carbon nanotubes (CNTs) during spinning. The yarns are much cheaper than those using CNTs as the only additive, producing fibres that can be sewn like threads and coiled into springs."
      Group: AirborneWindEnergy Message: 19029 From: joe_f_90032 Date: 9/9/2015
      Subject: Re: Aerotecture Fall Safety Update

      1.  Space to leave open:  Consider how sky tenants might always be connected comfortably to the aerotecture.


      2.  Also, consider ever having a net close vertically to any human operation in Sky Place.

      Group: AirborneWindEnergy Message: 19030 From: joe_f_90032 Date: 9/9/2015
      Subject: Re: Aerotecture Fall Safety Update
      Big Catch In The Spider Web ~ The Nature Animals

       
      Group: AirborneWindEnergy Message: 19031 From: dave santos Date: 9/10/2015
      Subject: Re: Aerotecture Fall Safety Update
      A specialized idea is a fall-net vehicle able to move under a falling person (falling from 3000m takes about a minute). It might allow skydiving without parachutes, capable of catching incapacitated jumpers (that currently rely on auto-ripcords). The net would need to be held 20-30m high by the vehicle. A formation of crane-like vehicles could hold up a net between them.



      On Wednesday, September 9, 2015 8:50 PM, "joefaust333@gmail.com [AirborneWindEnergy]" <AirborneWindEnergy@yahoogroups.com  
       
      Group: AirborneWindEnergy Message: 19032 From: Rod Read Date: 9/10/2015
      Subject: Re: Aerotecture Fall Safety Update

      Do you remember that video with the 3 drones holding a net? They caught and  re threw a ball very well. Don't fancy being diced up by one the size you'd need to catch a human. But it could work.

      Group: AirborneWindEnergy Message: 19033 From: joe_f_90032 Date: 9/10/2015
      Subject: Re: Spinnaker Kiting Demo
      Attachments :

        Parafoil holding distress signals ...

        one drawing echo topic, perhaps.

        See attachment.

        		   @@attachment@@
        Group: AirborneWindEnergy Message: 19034 From: dave santos Date: 9/10/2015
        Subject: Re: Spinnaker Kiting Demo [1 Attachment]
        Nice recall, Joe. 

        Veasy's specific 33 year old intuition; that COTS sails can be flown by means of pilot-kites replacing masts, is validated by kPower's recent experiments. His general thinking well represents the modern trend of modular kite rigs. While he proposed skydiving canopies converted to pilot-lifters, we now have comparably-sized specialized pilot-lifters that are lighter, cheaper, and fly better. Ironically, we are flying salvage spinnakers almost as old as Veasy's scheme, and separately tested a salvage parafoil parachute as a kite at kFarm; so we can easily recreate his inventive leap in vintage form-





        On Thursday, September 10, 2015 11:55 AM, "joefaust333@gmail.com [AirborneWindEnergy]" <AirborneWindEnergy@yahoogroups.com  
        [Attachment(s) from joefaust333@gmail.com [AirborneWindEnergy] included below]
        Parafoil holding distress signals ...
        one drawing echo topic, perhaps.
        See attachment.
        Group: AirborneWindEnergy Message: 19035 From: joe_f_90032 Date: 9/10/2015
        Subject: Lines with shaped surfaces and varied cross section

        Lines with shaped surfaces and varied cross sections


        This topic thread is more general than streamlining lines. Here, the study and discussion is invited to be on any shaping of a line's surface and its possible use in AWES.   Some surface shaping occurs in the manufacture of any line; being aware of such shaping may be critical in some AWES applications.  Specialized deliberate surface shaping for solving various challenges forms an option space. 


        We have already some notes about shaping lines for streamlining; perhaps we could generally keep that study in those topic threads dedicated to line streamlining.


        Cross section of a line may be flat, square, rhombic, circular, triangular, elliptical, teardrop, hexagonal, pentagonal, n-gonal, spiky, fuzzy, ribbon-like high aspect ratio, centrally bulbous, end-bulbous one end, double-end bulbous, chipped, ... and more.  The surface of such lines  may have edges or dents or curves or texturing in various ways.  Treatments of lines may generally leave some effect on lines' surface shape or/and cross section.  Use of a line may morph the shapes of line surfaces and the lines' cross section evenly or unevenly. Some fatigue of lines will be detectable by changes in line surfaces or cross sections; other fatigue modes may escape being indicated by inspection of surfaces or cross section measures.


        Motivation for the topic?

        Handling lines during operations is one motivation space.

        Achieving target PTO within budget invites selection of lines among options. Some PTO schemes will use flat belts; others may use knobbed lines. 

        Niche AWES will invite specialized lines. Water? Fog? Ice? Sun? Cutting? Transport of materials via lines?  Multiple purposes of a line? Worm-screw line shaping for moving TWs?  Lubrication-holding lines?  Holed lines? Hollow lines? Pipe-use lines? Compound lines for multitasking?    Etc.


        As the topic matures, we may become richer in motivational expressions.

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


        Starts:

        1.   See skybow wing as line. What surface treatments might optimize the skybow?  What cross section shape might optimize its flight for energy production? Could surface treatments modify the sound generated by the skybow?


        2. Worm-screw shaping a load line (LL) in TWTAK for TW movement laterally could be of various sizes to effect rates of travel.


        3. Faceted lines holding reflective treatments might enhance visibility of those lines. A translucent treatment might go over the faceting.


        4. Could lines be shaped to optimize water collecting from clouds? 


        5. Patent US8276312 - Lines having shaped surface and method of making 

         

        6.  ?  

        Group: AirborneWindEnergy Message: 19036 From: joe_f_90032 Date: 9/10/2015
        Subject: Re: FFAWE matters

        Joining topic:

        Albert Fonda

        Patent US20030024453 - Fluid-medium vehicle
        Group: AirborneWindEnergy Message: 19037 From: joe_f_90032 Date: 9/10/2015
        Subject: Strutless Kites: Strut Your Stuff. Or Not.
        Group: AirborneWindEnergy Message: 19038 From: joe_f_90032 Date: 9/10/2015
        Subject: Re: Lloyd Biscomb with WIPO patent under PCT, priority 1979
        Is the multiple-anchor control being employed in Pierre's reeling?
        See Pierre's disclosure:
        		  @@attachment@@
        Group: AirborneWindEnergy Message: 19039 From: joe_f_90032 Date: 9/10/2015
        Subject: Wave Hub

        Wave Hub


        Wave Energy Test Site Buoyed By Plan To Plug In | EarthTechling


        Wave Hub Ready To Take On Its First Energy Device | EarthTechling

         
        Group: AirborneWindEnergy Message: 19040 From: joe_f_90032 Date: 9/10/2015
        Subject: Re: Welcoming eWndSolutions to AWE

        News | eWind Solutions


        Also,

        Bjarke Kronborg is now pursuing his career and dreams elsewhere.

        Team eWind Solutions continue.

        Group: AirborneWindEnergy Message: 19041 From: joe_f_90032 Date: 9/10/2015
        Subject: Re: Rotating Reeling in AWEC2015
        Consider, perhaps: 
        1. Wind gradient effects. 
        2. Dependency on one large machine versus distributing risks to a collection of smaller systems. 
        3. Launching the system. 
        4. Maintaining flight in lulls.
        5. Wind gradient differentials at overspeed. 

        Offering:  Shape the soft hub to strategically direct hub-space wind impact flow to feed the wings; in the shaping set the center of the Parotor windward; such might be better than just blunt spillage 
        Group: AirborneWindEnergy Message: 19042 From: joe_f_90032 Date: 9/10/2015
        Subject: Re: Welcoming eWndSolutions to AWE

        Nomenclature:


        Versions of wing in kite system:


        eWi  #


        Example:


        eWi 2.5



        Contact the team?

        http://www.ewindsolutions.com/contact/

        There is option to sign up for their direct news.

        Group: AirborneWindEnergy Message: 19043 From: joe_f_90032 Date: 9/10/2015
        Subject: Re: Welcoming eWndSolutions to AWE
        Group: AirborneWindEnergy Message: 19044 From: Rod Read Date: 9/11/2015
        Subject: Good and bad news from TU Delft
        Starting with the not good,
        Online component of the AWE course has been cancelled ...
        To be honest, I'm not totally surprised.
        They are busy in the dept with a newly funded project.

        Rod Read

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

        07899057227
        01851 870878
        Group: AirborneWindEnergy Message: 19045 From: dave santos Date: 9/11/2015
        Subject: Re: Good and bad news from TU Delft
        Other unhappy news is that Uwe Fechner seems to have moved on. There seems to be a lapse in recent academic papers. AWEesco seems to be operating as AWEC has, as a secretive pay-to-play decision maker in conference planning, despite its academic basis. Its a secretive culture, without evident justification, compared to open-AWE, and the Dutch are supposed to be a modern open people.

        So Rod, what was the "good news"?



        On Friday, September 11, 2015 8:04 AM, "Rod Read rod.read@gmail.com [AirborneWindEnergy]" <AirborneWindEnergy@yahoogroups.com  
        Starting with the not good,
        Online component of the AWE course has been cancelled ...
        To be honest, I'm not totally surprised.
        They are busy in the dept with a newly funded project.

        Rod Read

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

        07899057227
        01851 870878
        Group: AirborneWindEnergy Message: 19046 From: dave santos Date: 9/11/2015
        Subject: Re: Strutless Kites: Strut Your Stuff. Or Not.
        Here is strong validation from kitesurfing of the KIS SS trends also seen in other kite worlds (like AWE). Its also a fine introduction to top LEI kite designers building, testing, and pondering in short cycles, driven more by passion than profit-motive.

        Several ideas pop out consistent with AWES Forum voices- "radical power-to-weight", "cheaper-to-build", "reducing the parts that can fail", " feel lighter in the air and easier to fly in the low end wind range", "stay over your head without falling in light or gusty winds, then it’s more stable than any kite with struts", "great drifting, better than any kite with struts", and so on, with top designers echoing each other. 

        Note "drifting" to mean when the kite lines are slack, and the soft kite is merely floating aloft by low wing-loading, with a minimal sink rate. A massive rigid wing falls out of the sky in this condition. Add drifting ability to our list of newly-named ideal kite qualities. The modern kite revolution is scarcely three decades old, with new terms still entering standard usage at a high rate.

        A standard caveat- "The most obvious liabilities of few or no strut are lots of luffing and fluttering, particularly in sweeping turns, and weaker power spikes for jumping. These are standard tradeoffs that kite designers deal with all the time". Lets keep in mind the proven sport-kite solution of a quiver to cover all wind and load conditions, that covers our design spectrum ranging from large SS to small rigid wing units, perhaps even in a single AWES. Standing Prediction- Larger kites will tend to be designed like low-wind kites, owing to a lower relative-wind (at constant velocity).
        Group: AirborneWindEnergy Message: 19047 From: dave santos Date: 9/11/2015
        Subject: Re: Lines with shaped surfaces and varied cross section
        While it is known that streamlined lines reduce drag, the utility of the method is confined to niches like bi-plane wing guy-wires, where lengths are short and velocities higher than normal kites. Streamlined lines that are longer and slacker tend to "strum" and actually create more drag than plain round lines.

        At longer lengths and low velocities, round lines dominate by highest strength (to weight, surface, and cross-section), lowest cost, etc.. Its known that the spiral and woven texture of twisted and braided lines can be aerodynamically beneficial, but this advantage is offset by slightly higher diameters for a given strength. An easily overlooked factor is that kitelines usually operate at a swept-back angle, which already confers streamline advantage to round lines.

        If streamlined lines are ever to succeed widely for kites, they first will be adopted by racing kites, and maybe then become a standard AWES optimization. While line drag is important, its a secondary factor, with only marginal improvements possible within current engineering constraints.



        On Thursday, September 10, 2015 2:15 PM, "joefaust333@gmail.com [AirborneWindEnergy]" <AirborneWindEnergy@yahoogroups.com  
        Lines with shaped surfaces and varied cross sections

        This topic thread is more general than streamlining lines. Here, the study and discussion is invited to be on any shaping of a line's surface and its possible use in AWES.   Some surface shaping occurs in the manufacture of any line; being aware of such shaping may be critical in some AWES applications.  Specialized deliberate surface shaping for solving various challenges forms an option space. 

        We have already some notes about shaping lines for streamlining; perhaps we could generally keep that study in those topic threads dedicated to line streamlining.

        Cross section of a line may be flat, square, rhombic, circular, triangular, elliptical, teardrop, hexagonal, pentagonal, n-gonal, spiky, fuzzy, ribbon-like high aspect ratio, centrally bulbous, end-bulbous one end, double-end bulbous, chipped, ... and more.  The surface of such lines  may have edges or dents or curves or texturing in various ways.  Treatments of lines may generally leave some effect on lines' surface shape or/and cross section.  Use of a line may morph the shapes of line surfaces and the lines' cross section evenly or unevenly. Some fatigue of lines will be detectable by changes in line surfaces or cross sections; other fatigue modes may escape being indicated by inspection of surfaces or cross section measures.

        Motivation for the topic?
        Handling lines during operations is one motivation space.
        Achieving target PTO within budget invites selection of lines among options. Some PTO schemes will use flat belts; others may use knobbed lines. 
        Niche AWES will invite specialized lines. Water? Fog? Ice? Sun? Cutting? Transport of materials via lines?  Multiple purposes of a line? Worm-screw line shaping for moving TWs?  Lubrication-holding lines?  Holed lines? Hollow lines? Pipe-use lines? Compound lines for multitasking?    Etc.

        As the topic matures, we may become richer in motivational expressions.
        ==============================

        Starts:
        1.   See skybow wing as line. What surface treatments might optimize the skybow?  What cross section shape might optimize its flight for energy production? Could surface treatments modify the sound generated by the skybow?

        2. Worm-screw shaping a load line (LL) in TWTAK for TW movement laterally could be of various sizes to effect rates of travel.

        3. Faceted lines holding reflective treatments might enhance visibility of those lines. A translucent treatment might go over the faceting.

        4. Could lines be shaped to optimize water collecting from clouds? 

         
        6.  ?  


        Group: AirborneWindEnergy Message: 19048 From: benhaiemp Date: 9/11/2015
        Subject: Re: Rotating Reeling in AWEC2015

        Thank you Joe for your great observations,


        An instructive post among many others fine posts you are going to produce (see arch and others). Tens of universities would be required to push ideas in the end.


        "1. Wind gradient effects. 
        2. Dependency on one large machine versus distributing risks to a collection of smaller systems. 
        5. Wind gradient differentials at overspeed. "
        I think these observations can be linked since "one large machine" is likely subjected in wind gradient effects. Control could be by bands of deformations of soft wing, and according to wind gradient. Softwares analyse them by informations by sensors.
        About 2. I described  also a motorized ring allowing longer lines of conversion, so a relatively smaller (but still huge) rotating wing, so "a collection of smaller systems".

        "3. Launching the system". 
        Parachute as hub covers the ring and its mobile stations of which some facing wind can unwind lines, making wind rush into made opening. (see process in the paper). But confirmations and more studies are required.

        "4. Maintaining flight in lulls."
        • Studying if a method as "reverse pumping" (team of Grenoble) is possible. Reverse reeling, inversion of rotation by motorized ring (but only if rotating wing works the ring)?
        • Or landing.

        PierreB

        http://www.awec2015.com/images/posters/AWEC25_Benhaiem-poster.pdf 
        Group: AirborneWindEnergy Message: 19049 From: joe_f_90032 Date: 9/11/2015
        Subject: Re: Lines with shaped surfaces and varied cross section
        Have a line with cross section S shape to optimize autorotation as in tumble wing (TW).   Know the dynamics well. Depending on the results, find effective ways to use the resultant. Swivels and thrust bearings may play.  Will the line stall and change directions of its lift vector from gust events? Will the lines rotate with enough stability to attract designers to consider such lines for veering?  One may see skybow as line; but consider finer and coarser lines of S cross section. 
             
        Robustly drive lifter kite wing from one side of wind window tethered by a robust S-shaped  rotating tether; PTO from the ground end of the rotating tether. 


            
        Group: AirborneWindEnergy Message: 19050 From: joe_f_90032 Date: 9/11/2015
        Subject: Uwe Fechner
        Group: AirborneWindEnergy Message: 19051 From: joe_f_90032 Date: 9/11/2015
        Subject: Re: Spider silk
        Group: AirborneWindEnergy Message: 19052 From: dave santos Date: 9/11/2015
        Subject: Successful ram-air AB-Dome and fall-cushion field-test (kPower)
        Today's kPower test on the US NW Coast was simply a large blue-tarp (~4m x 6m) with its margins buried in sand, and its windward apex folded into a bluff scoop, with two small holes as the ram-air intake. It was a 100x scale-up of the bench-top self-inflating (ram-air) AB Dome, a first test of the ram-air fall-cushion concept, and a cheap simple practical form of "wind-tent" (larger windward opening than fall-safety version). Inflation was stable and firm, and the dome easily supported the shovel "aloft", as payload, just as a city might be supported in a mega-scale version.

        The cushion mostly gently broke my fall from standing height, but the weaker frontal wall blew out its lesser sand ballast at the last instant before I fully settled, dropping me the last few inches unharmed. This was a good result to safely gauge just how strong the cushion should be, without making it too strong. The lesson is that the method will definitely fail by blow-out at weak points, but that its not hard to avoid fatal weaknesses. For higher falls, with greater forces to dissipate, added netting over the tarp will act as rip-stop.

        This method will be part of layered protection for pending human aerotecture experiments. I asked Joe to edit and link the photo (TIA).
        Group: AirborneWindEnergy Message: 19053 From: joe_f_90032 Date: 9/11/2015
        Subject: Re: Successful ram-air AB-Dome and fall-cushion field-test (kPower)
        Attachments :

          As Dave noted in post above: 
          image is attached. 
          		   @@attachment@@
          Group: AirborneWindEnergy Message: 19054 From: joe_f_90032 Date: 9/11/2015
          Subject: Re: Lines with shaped surfaces and varied cross section
          Group: AirborneWindEnergy Message: 19055 From: dave santos Date: 9/11/2015
          Subject: Re: Uwe Fechner
          Just to be clear, UweF's TUDelft email account was deactivated in recent rounds of group discussion, which seemed troubling, but maybe he is active as ever with the school. Still, its nice to review Uwe's varied profile.

          Perhaps the other Uwe (Ahrens) is the greater mystery, given NTS's unexplained absence from new North EU AWE combinations. In invoking Uwe, I was fishing for Rod to provide Delft "good news" he referenced, since the loss of Wubbo still overshadows AWE, and the conference was a bland mixed outcome (which even making Makani's presentation public presumably would not change). 




          On Friday, September 11, 2015 5:47 PM, "joefaust333@gmail.com [AirborneWindEnergy]" <AirborneWindEnergy@yahoogroups.com  


          Group: AirborneWindEnergy Message: 19056 From: Rod Read Date: 9/11/2015
          Subject: Re: Successful ram-air AB-Dome and fall-cushion field-test (kPower)
          Did you get a picture of the front cut and fold?

          Rod Read

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

          07899057227
          01851 870878
          Group: AirborneWindEnergy Message: 19057 From: dave santos Date: 9/12/2015
          Subject: 2016 Conference Planning?
          Buzz from PJ is that AWESCO is quietly acting as the AWE community's de-facto international conference organizer, and that UFreiburg has even already been chosen as the "logical" venue for 2016, for what would be a third-in-a-row German-Dutch event controlled by the same inside circle. This conflicts with a grass-roots proposal to have the long-overdue US-located conference in Seattle, at the Museum of Flight (as suggested by Fujino, Drachen Foundation, and endorsed by MoF). There are pros-and-cons for both sides, and maybe other candidate venues as well. The standing concern is that the mysterious Northern EU conference decision-making process is not open and accountable.

          On the US side, Makani and the many start-up ventures should work together for great US AWE conferences. After two California conferences, Seattle, Washington, moved to the fore, as the US aerospace capital home of Boeing (with MOUs and patents gathering) and Bill Gates (who is lately announcing investment goals in AWE). DaveN (NASA) had long predicted US R&D would depend on high-net-worth individuals, rather than government or NGO support. kPower proposes Gates be pitched an international R&D plan far beyond AWESCO's exclusive funding.

          John Oyebanji suggests the US side might organize a less academic-oriented more hands-on event (ie. AWEfest), which could mean we have grown enough to diversify into two broad camps, with two healthy events. Even if divided now, lets keep alive the original goal to unite for grand conferences that better balance all stakeholder circles (like 2009 and 2011). Open flying sessions and technical clinics have especially been lacking, in favor of academic papers and presentations.

          Wubbo Lives! Happy Energy :)
          Group: AirborneWindEnergy Message: 19058 From: dave santos Date: 9/12/2015
          Subject: Re: Strutless Kites: Strut Your Stuff. Or Not.
          More insightful power kite expertise on the strutless LEI trend (incl. comments)-





          On Friday, September 11, 2015 11:31 AM, dave santos <santos137@yahoo.com





          Group: AirborneWindEnergy Message: 19059 From: Pierre BENHAIEM Date: 9/13/2015
          Subject: Re: Successful ram-air AB-Dome and fall-cushion field-test (kPower)

          And a video during inflation please?

           

          PierreB