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Self Flying Kite

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Created by Macroscien > 9 months ago, 29 Apr 2012
Macroscien
QLD, 6809 posts
29 Apr 2012 11:10AM
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Are there any know design for self flying kite the could pull up the wind at specified angle?
This not specifically for kite surfing but to propelling devices from windmills to boats.

I imagine that this kite once lunched should stay or travel within specific angle to the wind without intervention from the bottom.

James
WA, 549 posts
29 Apr 2012 9:36AM
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The only thing I know of that would come close to what you describe would be the Peter Lynn "Arc" . You could tie that thing to a pole while you went home for lunch and it would still be up there when you got back to it , J



swoosh
QLD, 1929 posts
29 Apr 2012 11:36AM
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skysails-marine.com/index.html

?

James
WA, 549 posts
29 Apr 2012 10:12AM
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^^^^ Looks just like an Arc, J

juicerider
WA, 790 posts
29 Apr 2012 12:28PM
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'Hold the line' does one, its called the Jelly Fish.
Only costs $20

29 Apr 2012 10:18PM
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Macroscien said...

Are there any know design for self flying kite the could pull up the wind at specified angle?
This not specifically for kite surfing but to propelling devices from windmills to boats.

I imagine that this kite once lunched should stay or travel within specific angle to the wind without intervention from the bottom.


All single line kites are "self flying" but they will not provide traction into the wind, only downwind. A kite that will provide a tractable force and propel a vehicle or vessel upwind needs to be steered, as does the device being pulled, and it is the build up of "apparent wind" that allows the 2 devices to go upwind.

The PL Arc style kites will auto zenith, but they will not pull something upwind from that position, only down wind.

Macroscien
QLD, 6809 posts
29 Apr 2012 11:46PM
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Kitepower Australia said...

Macroscien said...

Are there any know design for self flying kite the could pull up the wind at specified angle?
This not specifically for kite surfing but to propelling devices from windmills to boats.

I imagine that this kite once lunched should stay or travel within specific angle to the wind without intervention from the bottom.


All single line kites are "self flying" but they will not provide traction into the wind, only downwind. A kite that will provide a tractable force and propel a vehicle or vessel upwind needs to be steered, as does the device being pulled, and it is the build up of "apparent wind" that allows the 2 devices to go upwind.

The PL Arc style kites will auto zenith, but they will not pull something upwind from that position, only down wind.

Down wind is obviously not always possible for propelling vessel , although could be sufficient for propelling wind-mill with kites connected in chain.
I think that should be possible to design kite with support of some mechanical ( rudders, wings, small ballon) or electronic components will be able to point say 30-45-90 degree to the wind and pull in this direction. Just what kite operator do on the ground - replicate with some lever and pulley, servos etc.
Next - if pneumatic compartment could be filled with hellium instead of air such kite could rise to air and stay there.
Possibly going too far with my idea - that will be something like flying wing



30 Apr 2012 12:27AM
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Macroscien said...

Kitepower Australia said...

Macroscien said...

Are there any know design for self flying kite the could pull up the wind at specified angle?
This not specifically for kite surfing but to propelling devices from windmills to boats.

I imagine that this kite once lunched should stay or travel within specific angle to the wind without intervention from the bottom.


All single line kites are "self flying" but they will not provide traction into the wind, only downwind. A kite that will provide a tractable force and propel a vehicle or vessel upwind needs to be steered, as does the device being pulled, and it is the build up of "apparent wind" that allows the 2 devices to go upwind.

The PL Arc style kites will auto zenith, but they will not pull something upwind from that position, only down wind.

Down wind is obviously not always possible for propelling vessel , although could be sufficient for propelling wind-mill with kites connected in chain.
I think that should be possible to design kite with support of some mechanical ( rudders, wings, small ballon) or electronic components will be able to point say 30-45-90 degree to the wind and pull in this direction. Just what kite operator do on the ground - replicate with some lever and pulley, servos etc.
Next - if pneumatic compartment could be filled with hellium instead of air such kite could rise to air and stay there.
Possibly going too far with my idea - that will be something like flying wing





Yeah probably best if you just go fly a kite, it all becomes very obvious when you do it. Replicating what a human can do with a machine, no doubt its possible and I think there are people working on this right now for power generation and traction purposes.
I prefer to just fly them
Have fun.

pattiecannon
QLD, 593 posts
30 Apr 2012 10:38PM
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Next - if pneumatic compartment could be filled with hellium instead of air such kite could rise to air and stay there.
Possibly going too far with my idea - that will be something like flying wing





He's a thinker!
nice one

kiteboy dave
QLD, 6525 posts
2 May 2012 1:36PM
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pattiecannon said...


Next - if pneumatic compartment could be filled with hellium instead of air .....

He's a thinker!
nice one


Aaaargh jeeez not this sh~t again! Search "Helium" in this forum. But to save you the effort: Will not work. Will not stay in kite. Will provide f'k all lift. End topic.

Meanwhile, Rule #1 proven once again...



kitethrills
QLD, 185 posts
2 May 2012 7:51PM
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Another option ive seen that has "legs" is a single line parafoil, with an adjustable drogue off the trailing edge. The drogue provides extra drag and stability, but you can adjust its position on the trailing edge so the drag can pull the kite to one side of the window - right on the very edge and parafoil sits low and pulls more across the wind. Set the drogue more in the middle and the foil sits higher and pulls more downwind.

They're very cheap, compact and super easy to launch. Super stable so its pretty close to set and forget.

Going upwind is a still a challenge - the more you get the foil near the edge , the less stable it gets. Still a long hull boat will certainly beam reach with this set up.



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"Self Flying Kite" started by Macroscien