controling kites

[Carsten Troelsgaard]

Are large kites easily controlable?... I have absolutely no idea myself ..If
I was to launch this project, the kites would be in one chaotic filter in no
time

http://www.sequoiaonline.com/blogs/ARCHIVIOscelti/progetto_eng.htm

... is it reasonably doable ??

Carsten

[fungus]

On May 22, 12:09 pm, "Carsten Troelsgaard"

Post by Carsten Troelsgaard
Are large kites easily controlable?

Better question: "Are large kites stable?"

Answer: Yes.

Post by Carsten Troelsgaard
... is it reasonably doable ??

I just looked at their animation and I have serious doubts. :-S


I saw a much more sensible proposal which had two kites attached
to a long cable which goes through a generator - one at each
end.

You inflate one kite and it goes up in the air, pulling the cable and
making electricity on the way. You then collapse the one which is
in the air and inflate the second one. The second one goes up,
pulling the first one down again and making electricity on the way.

Repeat....

I'm sure that one could be made to work but is it better than a
windmill? Probably not.


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[Richard Amirault]

"Carsten Troelsgaard" wrote ...

Post by Carsten Troelsgaard
Are large kites easily controlable?... I have absolutely no idea myself
..If I was to launch this project, the kites would be in one chaotic
filter in no time

(snip)


How large is "large"??

First off .. you are talking about dual-line foil kites .. and stacked kites
as well.

Second: the illustrations are obviously "not to scale" if you intend to put
these kites in "the high altitude wind of the troposphere." Launching these
kites will be a problem. Controlling them will have to be something other
than the illustration suggests .. you have both controlling lines coming out
of the end of each "arm" and sharing a single pulley. To control a dual line
stunt kite you need to move at least one of the lines back and forth (in and
out // out and back) relative to the other. Normally, a person flying a dual
line kite will pull on one line while letting out on the other .. but the
same effect can be had by just moving one line. However, you'll need
separate pulleys for each line because, as drawn, the lines will fight
against each other at the pulley.

Also .. since the lines will need to be considerably longer than the
illustration .. your "wheel" may need to be considerably larger as well.
Any small variation in control of each stack of kites will be magnified by
the distance of the lines. The illustration shown gives plenty of space
between adjacent stacks .. but in reality those kites could crash into
adjacent stacks if the lines are long enough and your control is not
sufficient.

What will these kites be made of?? UV will quickly weaken and destroy
conventional kite material if left exposed to the sun daily for weeks at a
time.

How will you keep aircraft from flying into the kite lines?