Seeking Support for Torrey Hawks:  HERE

April 2010  Lift

Receives your posts during the month.

There will be this month some furthering notes on:
  • The 1960 kite-glider by a 13-yr boy. See  1960 Kite-Glider hybrid   
    Report on your build projects related to this design family!  One build project has started in Los Angeles, California and will be tracked in Lift.
  • Bridge to HangGliderHistory group   ...recovery and flying further than before; join the fun:
    Pick an early topic and fly your inputs!
  • Bridge will be built to  Good communication lines have opened!
  • Work on the full spectrum of class of objects mechanically that are "hang gliders" with consideration on the parameter "flexibility" in airframe and wing assemblies
  • Subsets within the class of "hang gliders"

In year 1960: hybrid kite glider
Tony Prentice enters elite history at age 13.

Safety project
Data collection project for hang gliding.  Send in your data and references. Great!

 Johnny Carr
Blowing In The Wind
Seeds & Fruits Dispersed By Wind

Keywords: aviator's relief system, piddle pack, catheter, external catheter, pee systems, VARS, AMXD,


   Event: 1st Womens Paragliding Open : Category 2 FAI Open Championship

Faired tether held in part for its angle of attack by inset pulley

Original photo by David Glover  of  Manfred Ruhmer before Manfred's world record 700.6 km flight.
Dear Friends,
Some developments in the Laboratory

LEparagliding 1.0 paraglider design software released. Free GNU General Public License . No graphical user interface, really hard to use! but it works!

And  gnuLAB2  paraglider project released rando-light paraglider, 29 cells, and 7+ glide ratio estimation...

The gnuLAB2 prototype construction, which has to confirm the proper functioning of the design software, has already begun. Using fabric NCV 9017 40 g/m2 for extrados and Bainbridge AIRX 31 gr/m2 for intrados surface and for the ribs (with 42 gr/m2 reinforcements). I hope to show beautiful images of the gnuLAB2 in flight in early summer over Catalan landscapes. Details here:

I've also added a new chapter to the paraglider design book:
Chapter 7: V-ribs and H-ribs technology

As always, all data are freely available to study, copy, and further development. Life is too short to hide data.

best regards,   ~~~~ Pere Casellas

de Basse-Ham, France.


Please reserve right now the dates of June 25 - 26 - 27 2010 for a fantastic event, I mean the


This important event will be for you the best way to meet a lot of paramotors' fans and pilots, glad to share their experiences, but also great professionals ready to show their latest innovations.

Grand Air waits for you for an unforgettable weekend full of fun and meetings.

700 pilots from over 30 countries, 70 professional exhibitors, 20 000 visitors, 3 000 flights, several World records ...

Whether you are a pilot, a pilot to be, an instructor, a manufacturer or just an airsports enthusiast...

Participate in the 2010 Basse-Ham World Paramotor meeting !

Register Now !        

Reception when you land back at the LZ:
Some notes on PR:

Wide open.
1. Gym class elective in high school: foot-launch flying.
2. Accept tight e-self-launch from urban setting with good handshaking with ATC for soaring.
3. Roofs of urban buildings fully re-thought to accommodate launch and landings of personal aircraft including hang glider and e-assist-hang-gliders.
4. "You can fly; yes you can." Lullabies, pop songs, billboards, business cards, license plates,
5. Community self-soaring events
6. Advance applications. Advertise. Anniversary visits. Messenger service …delivered special letters from the air-mail service: Hang Glider Airmail Service. Hello flybys purchased; look out at 5 p.m. to see my special notice of undying love for you.
7. Textbooks. Teach the subjects using examples within the hang glider tech challenges.
8. Mesh with the kite energy cleantech industry.
9. Fly energy-producing systems with your hang glider
10. Combine hydrofoil with hang glider kite system; fly the oceans in the coupled system.
11. Advance the double-hang-glider system of free-flight dynamic two-kite flight ala Richard Miller, Wayne German, and Dale C. Kramer (recent patent application).
12. Book publishing: Paper Hang Gliders. Get a copy to every 5th grader in the world.
13. Send a CD of Jonathan's videos (select) to each eighth-grade science teacher in the world for their showing in class. Have discussion questions.
14. Attach hang gliding to the wind-energy movement in various ways. PR opportunities for turbine makers and hang gliderdom.
15. Walk hang gliders in parades.
16. Walk hang glider through every street in town for exercise. Have business card with just one URL on it for handing to those you pass.
17. Mount two hang gliders on a rotating platform and let it spin to generate electricity in town-central. News team. Give leaflets about hang gliding.
18. Publish and distribute a clear map on how a Ms and Mr. Public can go see hang gliding occurring.
19. Send a personal note on other business in e-mail, but have attached showing a neat HG flight scene that is easily understood. Connect with millions.

Challenge of queen posts in hang gliders.
13 Hang gliders within 3minutes @ Ashio EJC       
Discuss the statements on

George Cayley first created a model glider in 1804. It incorporated an English arch top kite mounted on a rod acting as a wing. The glider could be steered by an adjustable tail unit. This tail also kept the kite stable. Cayley placed weights on the kite. It carried weights up to 80 or 90 lbs.



An unmanned hang glider could be modified slightly to become a powerful wing-mill in a energy production kite system. The hang glider wing-mill would be set in line as a segment of the main kite system tether. The HG-wing-mill would be set eccentric and allowed to to flap.

Japanese/Mexican Consortium Develops Mini-AWECS

JoeF proposed mini-AWE as a vital application scale. Allister complained that membrane wingmills don't fire with steady precision. DaveL wished for an AWECS to show 700 hr of reliable "fly & forget" performance. AWE development can be hard work & i am lazy.
It took Japanese help to meet these concerns. Pending a phone-call to develop gigawatt scale AWE, the latest KiteLab prototype is a Mini-AWECS based on a Seiko Kinetic Drive (self-winding) Chronometer provided by my brother. It converts wildly chaotic motion into well regulated work. Its visible eccentric rotor is a pendulum ratcheted to drive a tiny generator, which charges a lithium battery, that in turn powers a quartz watch movement. Its a miniature model for future AWE ground-stations into megawatt scale.
The clever added principle of AWECS operation is the classic chaos demo of the Double Pendulum, but run backwards. The watch was mounted as the bob on a tunable wood pendulum, elastic damped & driven by a small membrane wing-mill or flapping kite. The triple chaos of double pendulum, windfield, & kite are transformed into precision electromechanical output. (Allister, its damn close to Bond's Oyster Perpetual). This is an old idea on this forum but the more one studies this process the more one marvels at its relative efficiency across a wide bandwidth.
A variety of autonomous kite inputs work well. The UltraKite (TM) technical pocket sled system with a tiny wing-mill is good for fast pulses. Its a Morse sled that self-relaunches. A dimestore Gayla flapping-wing hawk kite gives slower longer strokes, but wants a chicken-stick for self-relaunch. Tying a wingmill off a tree branch & running the line indoors models TEWP (Terrain Enabled Wind Power) & aux power into hybrid plants. Everything works nicely. In fact, there is far more power available than the watch function needs (imagine winding a watch for days at a time). Steampunk hint- an automatic watch mainsprings lets the spring slip in its barrel as a clutch, if over-wound.
Thank Japanese excellence & KiteLab for the most robust & smallest complete electro-AWECS yet. Its weather-proof & might run a lifetime with minor attention. The kinetic drive is standard COTS costing only a few dollars in bulk. The Chinese make particularly inexpensive variants. Many high tech applications run just fine on the power required for a watch. Watches actually consume considerable power, especially with "complications", as they call added features like moon phase & tide. Given the current primitive state of the art, KiteLab can actually rack up new AWE records for endurance, regulated output, high altitude, etc. with but a dinky set-up.
Here is a detail shot-
This is a demo with the wing-mill short-lined for the camera, which tuned it a bit fast-     Five seconds at 4 MB, but worth it.
KiteLab Ilwaco

Don Liddard advances history items.   Thanks, Don.

Flysurfer head of R&D Armin Harich explaining the Mixertest
Flysurfer Paraglider Jump V2.0 (Speed)
  •    at AJX    Andy Jackson Flight Park

  • CSS home

  • LastTurns.pdf     final steps to LZ after visitor maps directions via Google Maps.

  • Training at 80' ALZ,

  • F'O' Hundred" (400' ALZ),

  • Embree (340' ALZ)

  • McKenzie (250') launches.

  • Under construction: hang-only launch at 375'  ALZ (Zeller, a cliff launch)

  • Under construction: hang-only 500' ALZ right above Zeller.

  • Marshall (2200')

  • Crestline (3500')

  • Training hill (80' ALZ)

Weather for CSS



Watch for electric motor advances for electric aircraft from Joby Aviation. 

 This will affect e-launch foot-launch hang gliding.

Transforming energy and transportation: Airborne wind turbines and personal electric aircraft  (click for video talk)  
PARC Forum

15 April 2010
4:00pm - 5:00pm
George E. Pake Auditorium, PARC

Mike Van Dorn

Artist, teacher (retired), hang glider, and again a hang glider

  • Early Low & Slow author and hang glider poet (he high schooled earlier with founder of Self-Soar Association and co-founder of USHGA)

  • Early hang glider dealer in Hawaii

  • Early hang glider pilot.   Then after about 30 years Mike returned to hang gliding the skies of Hawaii in his Wills Wing Falcon 3 170.

  • His available art may be signed, perhaps with comment.

  • Some 40 video clips in YouTube ranging from 1972 to 2010 April.



Visiting group-formation gliding-canopy skydiver from Russia at Perris collided canopies, crashed from unproven height "maybe 40 or 50 ft"  and died today, April 30, 2010.