Raaseri references


Contents


FanÝ

FanÝ is an Island on the West coast of Denmark. It has 9 km long and 300...500 m wide beach, hard enough to drive on by cars and trucks. And most important: Wind - clean, smooth... usually enough... some times, more than enough... In mid June 1994 the 10th International Kite Flyers Meeting took place on FanÝ. The meetings have been organised by Volfgang and Rainer and have been dominated by German kite flyers, but it's getting more international year by year. 1994 we had 21 rec.kiters from seven countries in our meeting/party/indoors flying session

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n@r.k

In 1992/93 Peter Ulfheden, Esben Collstrup, Stein Hjelland, Bernhard Malle and Simo Salanne had unintentionally formed a group of rec.kiters, who on geographical reasons felt close to each other. Besides the discussions on rec.kites and emails we circulated material samples, videos etc. via snail mail among us. In the beginning of 1993 Stein asked if anybody knows when FanÝ meeting will take place. I had the date and suggested to get together all of us on FanÝ. Everybody took the bite!

As the June came closer we quite correctly anticipated the problem we will have to recognize each other. No one had ever met any other face to face. We managed to get accommodation on the same camping ground, but decided to make a small banner to help identification. After some emails a banner with "n@r.k" was selected. n@r.k stands for "nordic@rec.kites".

We had good time and n@r.k name sticked to the group automatically. We used it and other people started to use n@r.k as well. Next winter we even got some 'applications' from kite flyers, who were interested to 'join' in n@r.k. We had lengthy and difficult discussion about having more 'members'. The conclusion was that because we don't know ourselves what a membership of n@r.k means we cannot 'take' more members. The contemporary interpretation of n@r.k is to mean the meeting and the group we had in 1993. In 1994 we all were on FanÝ again, but a lot of other rec.kiters were there, too. Again we had good time, but similar groupings did not happen. We'll see how is 1995. n@r.k decided to challence other rec.kites groups in Rokkaku battle on FanÝ 1995! Well, it took one more year and the challenge took place for 1996...

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Cross Shunt Bidle

As far as I know, Herb Weldon was the person, who developed so called "Cross Shunt Bridle". Dean Jordan brought it on commercial market in his X-1 kites. Herb writes in X-1 developmental test X-bridle information about the cross shunt bridle:
In-haul:
The SHORTER you make these legs, the TIGHTER the kite spins/turns, and the lift will be reduced because the keel will be brought forward. If you adjust the legs longer, the turns/spins widen and the lift will be increased because the keel is back, or the nose is forward.
Out-haul:

Same as most kites, basically.

Shunt legs:

For a given setting of the in-haul legs, the shunt legs need to be set with "some slack", until the wind hits 6 MPH or so. They need to be dynamic (tight) before 8 MPH, or may experience "elsnapo". Here's how I set slack: I hold the tow points in my hands with the kite laying on it's back. I put my foot against the keel and pull the tow points. The spine flexes, the T (and spreaders) go back. If the shunts have not tightened with a "reasonable amount of T depression", then the shunts need to shortened. How much is "reasonable" before the the G-Force spreaders break? It's a matter of experience and opinion. Start out by setting slack for a small amount of depression (one "knots-worth" of slack), then you'll find you can add more. Watch the kite in flight. If the shunts are getting tight before 6 MPH (or so), add slack. So, you have two bridles in one: with the shunts slack, you're flying on cross-bridle, when the shunts go dynamic you're on the spine wrap! Not a bad deal is it? The X-bridle has several advantages over the spine-wrap, here's a few:
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Prusik Knot

Prusik knot is a kind of double lark's head knot.

Make a loop of line using an over hand knot. Attach the loop to a straight line with lark's head knot, and continue making one or two (recommended) more twists around instead of one. Make tight and tidy. The knot should still slide on the straight line. Bend the Prusik knot to U-shaped and it locks.

Making Prusik knot. (Image size 17 KB)

Prusik knot and its variants are used by mountain climbers; if they hang their lives on Prusik knot, you can do it to your kite!

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Icarex

Icarex is ripstop fabric made of polyester. Compared to ripstop nylon, it has:
Cold colors Hot colors

When I sew Icarex, I'll wet it's surface with water. Water keeps panels together like glued. Icarex is available from many kite shops, if you cannot find it near you, contact Vlieger-Op or Shanti.

Icarex swatches (colors samples) above are scanned directly from fabric on white paper. The size of a JPEG-image you get by clicking a thumbnail image is about 300 KB, but it has 16 million color palette instead of 256 in thumbnails.

Use these images to setup a palette in your favourite paint software and you can previsualise your kite designs.

Note: Scanning and display technology will not render the colors exactly as human eye.
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Dynacore

Dynacore is composite line material consisting of Dyneema core, which is sleeved by polyester. The rough texture of the polyester makes it very suitable for Prusik knot. I use both 75 kg and 150 kg for bridles. Available from Vlieger-Op.
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Exel RCF

is a pultruded carbon kite spar of:

Vlieger-Op
Wateringkade 5a
2515 AK Den Haag
Holland

phone +31-70-3858586
fax +31-70-3838541
email: vliegop@euronet.nl


Selected Exel technical data:
                                                        Outer
Spar                 Short  Relative ....  Scale Weight Diam
Type                 Name   Stiff. Weight  Fact.   g/m   mm
=============================================================
Exel RCF 6 Strong    RCF6S    0.70   0.96   0.92    32   5.9
Exel RCF 6           RCF6     0.85   0.66   0.96    22   5.9
Exel RCF 6 Ultra     RCF6U    1.26   0.51   1.06    17   5.9
Exel RCF 7           RCF7     1.61   0.78   1.13    26   6.9
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SkyShark

is wrapped carbon kite spar product line of:

SkyShark Kite Products
330 W. Grand Ave.
El Segundo
CA 90245
USA

phone: +1-310-414-0977.
fax: +1-310-414-0007
http://www.skyshark.com/


Selected SkyShark technical data:

                                                       Outer
Spar                 Short  Relative ....  Scale Weight Diam
Type                 Name   Stiff. Weight  Fact.   g/m   mm
=============================================================
SkyShark IIIP        IIIP     1.00   0.41   1.00    14   7.1
SkyShark VP          VP       1.11   0.49   1.03    16   7.1
SkyShark VIIP        VIIP     2.11   0.80   1.21    27   8.4

In Europe, SkySharks are available e.g. from Vlieger-Op.

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Beman

is a pultruded carbon kite spar of:

Beman-CDT
254, Avenue de Pressense
69625 Villeurbanne Cedex
France

phone +3372651430
fax +3378849752


Selected Beman technical data:

                                                        Outer
Spar                 Short  Relative ....  Scale Weight Diam
Type                 Name   Stiff. Weight  Fact.   g/m   mm  
=============================================================
Beman Ultra Light 21 BeUL21   2.27   0.81   1.23    27   8.3 

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