Date:	Fri, 11 Jun 1993 03:21:08 -1000
From:	chubbard@beta.tricity.wsu.edu (Charles William Hubbard)
Message-Id: <1993Jun11.132108.15550@serval.net.wsu.edu>
Organization: Washington State University Tri-Cities
Subject: Kite Generator?

In article <1v9ct1$9nm@nz12.rz.uni-karlsruhe.de> malle@rpksun1.mach.uni-karlsruhe.de (Bernhard Malle) writes:

> I have found some better plans in the DrachenMagazin; for example the
> snake, that Anne mentioned, a "rotor" and a generator.

I would be very interested in hearing more about this "rotor" and
generator.  A friend and I are interested in putting lights on our kite
for night flying.  We've been disappointed by the commercially available
systems we've seen and have been thinking about making our own.  As power
sources batteries are typical.  With all that wind just blowing by your
kite anyway it seems like a small wind generator is not out of the
question.  It seems to me that you should be able to build one light
enough that a 9' or 11' foot delta could lift it with no problem. 

If anybody has ever done this, seen this done, or has any suggestions on
this or other kite lighting systems I'd love to hear them!

Charlie
chubbard@beta.tricity.wsu.edu


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Date:	Mon, 14 Jun 1993 22:56:56 -1000
From:	malle@rpksun4.mach.uni-karlsruhe.de (Bernhard Malle)
Message-Id: <1vk2so$792@nz12.rz.uni-karlsruhe.de>
Organization: University of Karlsruhe (FRG)
Subject: Re: Kite Generator?

chubbard@beta.tricity.wsu.edu (Charles William Hubbard) writes
|> 
|> I would be very interested in hearing more about this "rotor" and
|> generator.  A friend and I are interested in putting lights on our kite
|> for night flying.  We've been disappointed by the commercially available
|> systems we've seen and have been thinking about making our own.  As power
|> sources batteries are typical.  With all that wind just blowing by your
|> kite anyway it seems like a small wind generator is not out of the
|> question.  It seems to me that you should be able to build one light
|> enough that a 9' or 11' foot delta could lift it with no problem. 
|> 
|> If anybody has ever done this, seen this done, or has any suggestions on
|> this or other kite lighting systems I'd love to hear them!
|> 
|> Charlie
|> chubbard@beta.tricity.wsu.edu
|> 
|> 

Sorry to disappoint you Charlie. The generator is a line toy and has the shape of
a 1/4 torus. The sewing pattern is quite simple:

        A  +-------+  B         A--B: 7cm
           |       |            B--C: 8cm
           |       |            D--E: 10cm
           |       +  C         A--D: 36cm
           |       |            B--E: 42cm
           |       |
           |       |
           |       |
           |       |
        D  +       |
             \     |
               \   |
                 \ |
                   +  E

You need 30 pieces. seem allowance ca. 4mm. You have to sew edge A--D to edge
E--C. If you are finished, sew point B to point C. The overlap of ripstop should
be on the outer side of the ring.

Don't hemm the edges E--C,
they help the generator to spin. Connect 30 briddle lines to the B's. In before
hem the edges A--B (the outer ring) and the edges D--E (the inner ring). That's
all.

Enjoy,

Bernhard


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Date:	Wed, 16 Jun 1993 00:57:09 -1000
From:	malle@rpksun1.mach.uni-karlsruhe.de (Bernhard Malle)
Message-Id: <1vmua5$ig5@nz12.rz.uni-karlsruhe.de>
Organization: University of Karlsruhe (FRG)
Subject: Re: Kite Generator?

Urrgghh, I have made a mistake, when giving the dimensions for the generator. I
am absolutely sorry, and I hope, that noone has already started to cut out pieces
of ripstop.

|>         A  +-------+  B         A--B: 7cm
|>            |       |            B--C: 8cm
|>            |       |            D--E: 10cm
|>            |       +  C         A--D: 36cm
|>            |       |            B--E: 42cm
|>            |       |
|>            |       |
|>            |       |
|>            |       |
|>         D  +       |
|>              \     |
|>                \   |
|>                  \ |
|>                    +  E
|> 

A--B must be 10cm and D--E must be 6cm. Also B--C is 14cm, the angle
DAB is 90 degrees.

Sorry for the mistake.

Bernhard