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DIY Foil Kites

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Schietwedder
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Re: DIY Foil Kites

Postby Schietwedder » Tue Mar 22, 2022 11:33 pm

Next one a 4m AR 4 for foiling. Bridle can be converted to a foilkite wing with a handle/Boom attaching directly to the bridle instead of a Bar with lines.. But first I need it as a kite 😁
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Re: DIY Foil Kites

Postby Rein de Vries » Tue Jun 21, 2022 9:39 pm

:)
IMG-20220619-WA0002.jpg

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Schietwedder
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Re: DIY Foil Kites

Postby Schietwedder » Tue Jun 21, 2022 11:24 pm

Yeah! Impressive seing the AR and cell count

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Re: DIY Foil Kites

Postby André Mantovani » Fri Jun 24, 2022 1:35 am


Rein de Vries
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Re: DIY Foil Kites

Postby Rein de Vries » Sun Jul 10, 2022 1:23 pm

Very much pleased with the first meters of the Ultra Light 11m2. Stable tips and smooth power!
IMG20220708201933.jpg
IMG20220708200419.jpg
IMG20220708200628.jpg
IMG20220708204140.jpg
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Re: DIY Foil Kites

Postby Liam1 » Sun Oct 23, 2022 2:36 pm

Got around to making a 2 square meter test kite, it works better than expected but I will have to change the bridle adjustments to make it a depower kite. Right now it works best when flying it as a 2-liner.
The green fabric was from an old tent which wasn't air-tight at all so the kite didn't stay inflated for a long time unless you forced air into it by flying.

Currently I have my bridle setup that when the kite is fully powered and thus the (bar) line lengths are equal, the ABCZ are all equal length and mixer is also equal length for power and steering. It looks like (IRL because in the video it's difficult to see) currently the B and/or C are too short since Z was slacking, even when powered, yet the kite wanted to backstall.

The prototype shows (to me at least) that the kite could work, the body didn't seem to affect things too much and (also because of the tendency to backstall) the kite didn't want to frontstall, not even when pulling hard on the power line. Safety works and it does also have the ability to turn into a helicopter which is very nice!


Test flight where where some of the issues can be seen, about 12-13 knts:

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Re: DIY Foil Kites

Postby Smeagle » Mon Oct 24, 2022 1:03 pm

Hi,

very nice, good work! How did you learn this? Are there books about this matter?

- Oliver

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Re: DIY Foil Kites

Postby Liam1 » Mon Oct 24, 2022 5:14 pm

The books I read where this thread and some general google searching. Stef was quite detailed in his process (somewhere towards the start of this thread) and I watched videos by niklas (schietwedder) which are probably somewhere in this thread as well but that's about it.
Programs used to analyse and generate kites are also named in this thread but I used surfplan (hobby) for generating plans and xflr5 for profile/kite analysis (with help from niklas).

There probably are books on the subject but I didn't read any so don't know which would be good/useful.
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Schietwedder
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Re: DIY Foil Kites

Postby Schietwedder » Mon Oct 31, 2022 6:48 pm

Nice Kite Liam!
The cloth quality makes a big difference, next tim a bit bigger, a bit more wing and less owl body (maybe higher AR) and it should fly just fine! Very impressed, keep making those!

Some very light wind with the 16.5m today on the Sabfoil 799 just before sunset.
Maybe 4-5 knots gusts 6 ish. Kite stayed dry :D


Shortened the lines to about 15m and now very happy with the reactiveness and turning.
.... flying early and close turning (for size)

Meanwhile a 7.5m Version of the 16.5 is underway
Attachments
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7.5m AR 6.5
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7.5m
Last edited by Schietwedder on Mon Oct 31, 2022 7:15 pm, edited 1 time in total.
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tkaraszewski
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Re: DIY Foil Kites

Postby tkaraszewski » Mon Oct 31, 2022 6:54 pm

Rein de Vries wrote:
Sun Jul 10, 2022 1:23 pm
Very much pleased with the first meters of the Ultra Light 11m2. Stable tips and smooth power!

IMG20220708201933.jpg

IMG20220708200419.jpg

IMG20220708200628.jpg

IMG20220708204140.jpg

IMG20220708184214.jpg
This is amazing. How many hours went into this?


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