• The rapid shares in the forum spiced with special AWES application shows a confidence in our AWE industry growing. 
• An industry that does not integrate favorably with animal life may suffer. AWE will integrate with animals in many positive ways 
• Dogs may tug AWES that produce electricity or light for operations in various special scientific or recreational circumstances. 
• In AWES-supported aerotecture we may see dogs playing some first roles aloft. The dogs may perform operations better than some humans. 
• Dogs may be part of the ground-security operations of an AWES operation. 
• Dogs and AWES are already supporting the public relations effort as regards AWE. 
• ... 
• easy to find even more positive streams for dogs in the AWE RAD environment. 

• Light-emitting diodes are making inroads to AWE in many ways. Each way may be mentioned and followed to inform. 
• Day light is no little player in young AWE. 
• Lack of day light is a big player in young AWE. 
• AWES of tethered sort may emit light within the anchor set. 
• AWES of tethered sort may emit light from the tether set. 
• AWES of tethered sort may emit light from its wing set. 
• AWES may be illuminated from outside sources, both by natural and artificial means. 
• Solid-state lighting is advancing and will probably make inroads to AWES. 
• Lights may signal status of AWES parts. 
• AWES may be dedicated to converting the wind's energy into light of various strengths, densities, colors, wavelengths; and such for use in many ways (transmitting gained energy, cutting, illuminating aloft or ground objects or areas, ... )
• The light of sparks from electrical discharges may be deliberately arranged or tolerated or managed. Care for what causes sparks may be important for safety and the life of an AWES.  
• AWES may be use to give aloft light displays in very many ways: video, still images, artistic display, serve celebratory fireworks, carry television programming, support advertising and propaganda, ...
• Flygen electricity may drive night aloft lighting systems.
• Ground-served electricity may drive lighting in aloft parts of AWES.
• Color of lights may smartly serve aloft wing status.
• Event entertainment may be served by lighting served up by AWES. 
• Multiple parabolic AWES-held surfaces might be smartly kept focused on a single aloft or ground point in order to give multiple suns' light to effect heating of objects for various purposes. 
• Some light-forming arrangements will be producing heat; designers may need to manage that heat in various ways; some ways may give secondary benefits, say in warming occupants in AWES-supported aerotecture inhabited devices (special clothes, room, surfaces). 
• Moonlight and AWES wings
• AWES wings blocking light. See forum on shading matters.
• Conspicuity rules for aircraft including AWES. Solutions? Devices?  NextGen aviation and lighting matters related to AWES?
• Hazardous light and lighting related to AWES. 
• Aloft light sensors and reporting systems. Detect ground-based fires that are emitting light; have the AWES report the changing  light scene to appropriate systems and people. 
• The light of ground fires might guide smart fire-fighting AWES to urgent service over the light-heat spots. 
• Put LED lamps on the tips of the blades of a super-long ST branch for night flying ST promotion (DSelsam, please send royalty; thanks)
• Use bioluminescence in some AWES.    Or/and have AWES smartly detecting presence of animals emitting their light; report the occurrence and density to scientists or others. 
• In physics, the term light sometimes refers to electromagnetic radiation of any wavelength, whether visible or not.^[12][13] 
  
• See laser cutting concern where the cutting is done by AWES works; see forum search. 
• Humans often can see AWES because of the visible light related to AWES parts. Such seeing may be pleasant; however AWES farms may need to be concerned how communities "see" the operations; such matter has been important in much of conventional wind power. 
• Chemiluminescence may play roles in materials used in AWES.
  
• In promoting AWES era and systems, light patterns may indicate the amount of energy be converted by an AWES. Viewers may quickly see such interpretation of what the AWES is doing.
•  Photoluminescence may have many uses in AWE. 
• Light will play a part in the ground security aspect of AWES operations. Security alarm lighting will play. Security guard dogs might be attired with lamps to identify where they are; when the dog moves, intruders might be excited by the moving light; supervisors might trace the dog at night by the lamps on the dog. 
• Microwave radiation may play roles in AWE.   We have displayed some patents involving this matter for AWES. 
• AWES technicians will be wearing lamps when they work at night or in dark places in ground stations. 
• Standards about color and light strength for safety lighting will guide designers of AWES. 
• Illumination of fencing, perhaps upon sensing motion, may play role for the safety of AWES plants. 
• Solar energy conversion surfaces in wings and on other parts of an AWES plant will play roles in K3 energy production. 
• AWES at utility scale of electricity production will interface with companies that are often designated as "Light & Power" companies.  People generally appreciate that the wonder of home light comes from the power companies. AWES may play in this realm by being attentive to light matters. 
• Border control by light from AWES may play a role in governance. 
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• Sail-art hippo​  This might enrich the minds of budding AWE workers of the future.
• Kite-assisted HTA hippo performance art as hippo walks or dances   This may bring future genius to AWE.
• Lofted-by-AWES HTA hippo   This may signal serious rescue efforts by AWES for large animals. 
• Jeremy, the Hippo joins the AWE movement   Indeed, some serious tracking of hippos might involve some tethered airfoils that send signals to helpers. The cooperation of the hippo so kited would be part of the deal. 
• FFAWE may one day move hippos from a hazardous environment to a safe region. 
• Indeed, temporary strapping a watered hippo with a hung line from an AWES arrangement could be part of a weighing operation; study the tension changes in the line and the measure over photos regarding the hippo body displacement during a partial lift. 
• Hippos flying kites seem to be setting the roots of AWE's future.
• Transporting giraffes, elephants, and hippos using the wind 
• AWES laundry ... drying out the train of hippos    
• If whales can do it, maybe the hippos could

Two wings on one line

[But notice that when three or more wings are involved, then sectors of such system have two wings involved.]\

Two wings on one line

This topic thread is dedicated to the history of two wings on one tether.

Invited are the histories of two aircraft of any sort on one tether at any time in history. Contributions from early LTA wings might play; instances from model aircraft certainly may dance; cases from all ages of kiting may come to the party; military facts can come to the party here; etc.  Two wings on one line in any configuration: train, coterie, cluster, arch, tree.  References would be nice. Drawings too. Dynamics too. Specifications?  PTO?  To powered aircraft on lines powered by ground-based batteries?  Toy, sport, military, kiting, parachuting, drogues, gliders, industrial aircraft, experiments, ... Note that "anchor" may be moving or fixed, human or machine, flying or not flying, falling or not falling.

Start notes: 

Some obvious topologies (about which we seek historical drawings and photographs or descriptions with references: 

•   Two veering sub-kites of equal sub-tether lengths coming off one line to anchor. E.g., Fig. 3 of US3987987 by Peter R. Payne, Charles McCutchen, circa 1975.  The Fig. 3 has two balanced kites with their own tethers anchoring aloft to a single point where then one tether holds the two sub kites.The entire system is one kite system with two wings.    
  
• "A variety of structures are known which will follow prescribed paths, tacking across the wind such that the motion of the structure itself generates forces on the tethering cable to facilitate the generation of useful energy. Alternatively, the use of propellers on board the self-erecting structure with the tether serving as an electrical connection from an on board generator can be used. By the use of known control techniques, the self-erecting member can be kept in a prolonged flight status. Also, the efficient transfer of energy from the tether to electromechanical devices can be used to effectuate the generation of energy."
  
  
• Two veering sub-kites of unequal sub-tether lengths coming off one line to anchor.
  
• Two looping sub-kites with equal length sub-lines coming off one line to anchor.
  
• Two looping sub-kites with unequal length sub-lines off one line to anchor. 
  
• Two wings mounted on one line without bifurcating in simple train style with top wing and lower wing. 
  
• Tow two mounted gliders from one line where each glider branches off from a meeting ring with its own sub-kite tether. 
  
• Two-bladed HAWT coming off one hub; the two wings (the two blades) involved are often designed to be balanced as they rotate about the hub; the hub as the one line is tensed while being quite rigid; the working wings (blades) drive the rotation of the main line (hub) which next is often coupled to shafts that drive electric generators. 
  
• Control-line flying of wings on lines (aloft powered as well as electric powered from base batteries may be explored.   Consider having two human pilots considered as an integrated team (line) flying from same center; I have seen two human pilots and three human pilots integrating in a dance that is special; see contest video for a delight. 
  
• Two wings bridled and then integrated to one line to anchor; have the two wings touch and sometimes even bonded side-by-side or top-and-bottom. 
  
• Dual-towed gliders whose separate lines meet at a single ring which is tethered to the tug aircraft. 
  
• Glider Dual Tow RAF Halton
  
• Two drogues with their lines meeting to a ring to an anchoring line.
  
• Two towed boats in the various topologies of their lines to a tug boat. See some of the above obvious alternative topologies. 
  
• One water skier using two wings, one one each leg-foot is kited by the one main tow line to the boat. 
  
• Two distinct water skiers towed by one power boat. 
  
• Two fishing lures or paravanes on one line in the various obvious topologies. 
  
• Two kytoons with sub lines to one main line in the various obvious topologies. 
  
• Two kytoons on one line in the various obvious topologies. 
  

• The tree of fighter kites has sectors with two fighter sub-kites in such sectors. 
  
• Trains and arches with two or more wings have sectors that hold two wings on one line. 
• World Waterski Record Run 145 Skiers Official Team Video HD (one boom base; feat feasible from one line)
• Some toys:  Clackers ... two balanced sphere each with its own tether to a ring; then the tendon of the person would operate the flights of the two wings. 
• Two wings on a line when one of the wings is a lifter wing using the main tether, while the other wing is a line traveler wing using the main tether. 
• 
  

Lift, Drag, Rotate, Pull, Push, Pound, Drop, Pick, Place, Ride, Transport, Travel, Serve, ...

~ JoeF