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Crosswind kite power Dragon of little falls

left-click = rotate, middle-button/CTLR-left-click = pan, scroll/right-click/ALT-left-click = zoom

Downloads: 259
Uploaded by: Joshua Wojnas
File size: 290 kilobytes
VSP Version: 3.X
License: Public Domain

File ID# 350
Manufacturer Air2IT LLC
Model Cross Wind Kite Power Solid Model
Units Meters
Description Cross Wind Kite Power systems seem to use the wind efficently. The wikipedia page calculations formulas and example do not match with myles loyd's paper. Scale to a CG-4 outline to be cut by wecutfoam and covered with fiber glass or carbon fiber motor mounts to be added in freecad. The documentation for OpenVSP to make a model like this seems limited. How is a new wing created efficent for a glider how about balance and center of gravity and tether points. Center of gravity and fem analysis for strength and balance and wind tunnel simulations help. Nasa's website had kite simulators. This is public domain lets work on it together.
Source Quality

4 - The source material used to create this model was Inaccurate. This means some photos and drawings with very few dimensions were used to create the model.

Model Suitability
  • 2 - Cartoon or Pretty Picture
  • 3 - Build a display model
  • 5 - Check internal layout/volume
Tags airplane , vtol , business , kitplane , r/c , four-engine , lifting body , propulsion , avionics , cwkp

Enter all tags that describe the file separated by commas. (i.e. "Part, Engine, Aircraft")


joe rollins (December 26, 2018 at 22:54):

I honestly think if all wind conditions aren't perfect, then this kite will quickly fold up, spin madly and twist the line and EVERYTHING it comes into contact with into a massive knot from hell. You'll do better to just burn it as a sacrifice to the Sky Gods and not argue about how cool it looked before they shot it down!!!

I made a beautiful large triple full lift wing delta foil about 30 years ago and am still not fully recovered from the embarrassment. :-(

The surfaces and stress points were all methodically worked out, however, little did I know just how much stress and turbulence there is on the surfaces between each other. Everything on a kite is vying for lift and stability. There is also unknown stress and vorticies on soft/sagging surfaces. This causes a complete foil collapse and fold-over of the cell which as you may have seen, pulls the rest of the cells or surfaces into odd vectors that do not easily allow filling and lift rigidity.

My kite was up for maybe 15-30 seconds, tops and WOW!, it was pulling so hard I thought my arms would rip right off. AWESOME, IT WAS BEAUTIFUL... HOW COOL... IT REALLY FLIES... YIPPIE!!!

Then POW, a catastrophic explosive sound like that from a WW-II mortar erupted from the general area where my kite was last seen zooming to the heavens with me in tow!

Suddenly we all heard a quite obnoxious whirling and twisting confusion of bright colors sounding something like "wowowowowowowwoowoooooo, crawcrawcrawcraw...AUGH..HELP... HELP... HELP....!!!!!".

WTF...??? :-? :-/ :-(

Suddenly a pathetic wad of very ripped up "RIP STOP" was in a MASSIVE heap of sadness flopping around on the beach and scooping up everything in its arch of total chaos.... Campers, BBQ pits, little dogs... children... old women, the contest judge!...nothing was able to escape its hatred for mankind >:(

OMG!... WTF...?!!... I was so shammed. I cut the lines, told the GF "hurry, go start the car, let's go!" She fired up the 69 VW Bus, opened the sliding door and I dove in... we're out of there and I've never been back nor read my mail from them since! LOL

Alex-Daniel Rus (January 12, 2018 at 12:56):

Hello! I remember some things about the principles of lift in kites and specifically 3D kites that I`ve seen, but that was long ago, thus rendering my knowledge limited. But I`ll try to point out some things that I consider useful (using what I know now and logic). 1. Angle of the tether line in relation with the plane (main one to keep it simple) of the kite (viewed from the W plane) 2. The relation of this angle with the CG ( usually it was a pyramid formed by the tether points with its tip>>>main line) 3. The coordinates of the CG (x, y, z) in relation with the (a, b, c, d, a`, b`, c`, d`, a``, b``, c``, d``) - of the polyhedron ( in the 3 main views - could be a cube) 4. Lift providing surfaces and their distribution These are some basic things I can think of, and bear in mind that I`m speaking about a basic 3D kite, like the ones they used to make some, I don`t know, 25 years ago. from wood and paper. So if any of this information helps I`m happy. P.S. Anything that uses the natural forces is more advanced than any gizmo.

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