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Building a state-of-the-art foil kite

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downunder
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Re: Building a state-of-the-art foil kite

Postby downunder » Wed May 08, 2019 8:51 am

sms-kite wrote:
Tue May 07, 2019 3:07 pm
kitexpert wrote:
Tue May 07, 2019 10:33 am

To say Soul is a middle-low performance kite is a bit too much when it easily beats all LEI's and all other foil kites not including race kites by its L/D. But I'm not saying everyone should buy a Soul because there are many other things than L/D which are essential in kites.

Soul is the best foil kite in general at the moment. With Soul it is possible to megaloop, jump over 28m high and have 17s hang time from the flat surface. No other kite has anything comparable. That shows mid AR foil kite concept has huge potential.
Sorry, but I am not really agreed with your point of view...

Soul beats easely a tube kite? Even if you are looking to do Kiteloop? Are you sure? Do you ever trie to make a big kiteloop in gusty wind with the Soul??? Because I do kiteloop with a TT since 12years with an hybride kite... I do it on the snow with foil kite and I really don't want to test a 10sm foilkite in 20kts in kitesurfing.
It is not because some top riders do this, this year, that it is a revolution... Top riders done megaloop with tube kite since 2002-2003... So the Soul have the same performance than a 2003 kite?

Foil kites are really not at the same level on depower and turn ability... They have good points and they have bad points like tube kites, like everything. The soul doesn't change the problems, today everybody can do a kite loop with a tube kite, it is so simple... And make a kiteloop with a foil kites needs to be on the good timing in the good wind with a good rider.

I change between tube kite and foil all over the year... I am always surprise when everybody tells me "The soul turns as a tube kite, the soul have the same depower"...I test it, nothing to compare. Or I heard "my tubekite is lighter than a foil, my tubekite have the same power..." seriousely a tube kite have 10-15% less power for the same surface and it is 800-1000gr heavier.

I understand that you love your soul, but this kite is more a freeride kite than a top performant kite. It is a well balance kite. But his L/D ratio is not incredible. It is approximatively the same than a race tube kite... But nobody have race kite to compare anymore.

I think that the freeride foil kite is the more interested kite because it's closed to the rider level and with the way that riders want to kite. But clearely, on every brand the L/D ratio decrease on the most popular foil kite. And it is not a design problems, it is because they want to go for a well balance kite, easy to run, fun and seccurity...

Best regards

Norbert
Yes.

It has been done by Olly Bridge, search for videos. How gusty, duno, ask him. We need to compare specific kite with a specific kite. Sure Soul can loop, can it loop better than Fuel? No, but than Fuel is not better in xyx comparing to Soul.

If I may, you are taking this personally, it is not great to assume that someone has this or that kite. I do not have the Soul. But know what it can and cannot do based on my testing while I did have it.

The performance is superficial to discuss if the rider is not a top performer. In other words, do not blame the tools.

On topics, as mentioned many times, while you were all discussing this in length one could spin up a web page with "how to start sewing the kite".

Looks like only I am posting the link to an old scanned PDF all this years :(

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Re: Building a state-of-the-art foil kite

Postby sms-kite » Wed May 08, 2019 10:36 pm

downunder wrote:
Wed May 08, 2019 8:51 am

Yes.

It has been done by Olly Bridge, search for videos. How gusty, duno, ask him. We need to compare specific kite with a specific kite. Sure Soul can loop, can it loop better than Fuel? No, but than Fuel is not better in xyx comparing to Soul.

If I may, you are taking this personally, it is not great to assume that someone has this or that kite. I do not have the Soul. But know what it can and cannot do based on my testing while I did have it.

The performance is superficial to discuss if the rider is not a top performer. In other words, do not blame the tools.

On topics, as mentioned many times, while you were all discussing this in length one could spin up a web page with "how to start sewing the kite".

Looks like only I am posting the link to an old scanned PDF all this years :(
Hello.

I spend so much time to help diy builder to trim to built to design since 20 years. The most is in fresh... Sorry.

But if you start to built a kite with D-ribs H-Ribs it will be so complicated that it is sure that you will have problems.
The first step of the DIY is to think by yourself...
Take the time to look how your kite is done
To test bridles triming
To start with a small and simple kite (may be for kids?).

So if you think that make a great 3D with 100 pieces of fabric is a good way to start... Honestly I am not sure.

DIY needs a specific way to think... All the informations are on the net. But you need to learn the sewing machin bases. You need the 3D design bases. Print pattern cut the fabric bridles... Etc etc... So it is impossible to do a post like this...

I am going to check what I have done in the past that you can use... But if the goal is to built a Soul or a race kite... It will be not a good way in my point of view.

Best regards

Nono

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Re: Building a state-of-the-art foil kite

Postby downunder » Thu May 09, 2019 2:47 am

Not a post,

a web page with "how to start sewing the kite".

No, not all information is on the net. The fragmented information is, but not all, not even close.

And than have a look at this and involvement in the project:

http://boardbuilders-forum.1077691.n5.nabble.com/

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Re: Building a state-of-the-art foil kite

Postby sms-kite » Thu May 09, 2019 1:27 pm

Hello,

May be some informations here:

http://www.construire-sa-voile.com/site ... ry/Accueil

http://foilivier.free.fr/fr/index.htm

But as I tell you it is in french, I hope google translate will help you...

I was working long time with all this guys to go ahead, lots of work, lot of problems to solve
A link to what I have done with my brother

http://sms-kite.pagesperso-orange.fr/pa ... -faire.htm

And my website, if you want to know what I do now
http://sms-kite.monsite-orange.fr/


So I think there is a lot of informations on the web, but as I tell you DIY is a spirit.

Hope you will find your way


Best regards

Norbert

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Re: Building a state-of-the-art foil kite

Postby kitexpert » Fri May 10, 2019 1:15 am

It is not that difficult to sew a foil kite, after you have the pieces you just start it. First you sew LE seams of upper and lower skins together (you can do it for all cells), then add a first rib (profile) to it, then next cell so that seams go inside. Possible dribs, bridle attachment points, straps, air intakes etc. should be of course added (actually all pieces should be prepared and ready before assembly starts). The most difficult is to sew LE area seam especially if wing is small or wingtip is very narrow because it has so small radius curve in a 3D object.

Biggest part of the seams are practically straight, so quite easy work. But all the time you must take care of alignment: seam allowance should remain same and skins and ribs must keep their correct position to each other. Alignment points are very useful here.

It is possible to sew cell seam and rib in one go but it is more difficult. Double seam is not a bad thing so doing them separately is a good way to do it. If two sided tape is used all together is more reasonable.

If someone wants to know how some detail of a foil kite should be done, just ask. Many things can be done in more than one way but I can tell one which works.


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