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by Rein de Vries
Tue Jan 05, 2021 11:00 pm
Forum: Foil Kites
Topic: How to design a foilkite basics/Surfplan tutorial video
Replies: 2
Views: 270

Re: How to design a foilkite basics/Surfplan tutorial video

Great post! I think it is very valuable to share all your learnings, as it is the sum of a lot of engineering and thinking. Curious also to your other videos. Having discussed the various theories about transversal shaping, skin tension, billow and strap tension I think also that is very valuable fo...
by Rein de Vries
Sat Jan 02, 2021 9:40 pm
Forum: Foil Kites
Topic: DIY Foil Kites
Replies: 302
Views: 59582

Re: DIY Foil Kites

Strong progress Niklas! Your order is little different then mine, but probably more easy to construct. Meanwhile I am almost up to the bridle. Wondering where you order your lines and how you set it up such that you can easily tune? I will make a standard pulley mixer system as on a 4:2:1 race kite ...
by Rein de Vries
Wed Dec 16, 2020 12:11 am
Forum: Foil Kites
Topic: DIY Foil Kites
Replies: 302
Views: 59582

Re: DIY Foil Kites

Some more progress pictures! :)
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by Rein de Vries
Fri Oct 02, 2020 9:34 pm
Forum: Foil Kites
Topic: DIY Foil Kites
Replies: 302
Views: 59582

Re: DIY Foil Kites

Some progress pictures on my 5m. It shows how I choose to do the LE battens, transversal 3d shaping, straps and mini ribs. :)
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by Rein de Vries
Sat Sep 12, 2020 12:43 pm
Forum: Foil Kites
Topic: DIY Foil Kites
Replies: 302
Views: 59582

Re: DIY Foil Kites

Very nice to see, curious allready to how it will fly. Smart idea to only add dribs to the cells that have high angled bridles, it will surely help to keep the shape. I choose to do ribs all over the kite, which is obviously a lot of work. At the same time, I think it adds a lot of stiffness to the ...
by Rein de Vries
Wed Aug 19, 2020 8:16 pm
Forum: Foil Kites
Topic: DIY Foil Kites
Replies: 302
Views: 59582

Re: DIY Foil Kites

Thanks Freddyforlaunch! On some pieces it may indeed be easier just taking it directly without cutting. And thank you Schietwedder for another interesting post. On the steering ability and the mixer action I can imagine the Z points on the chord play a role w.r.t. the flight characteristics. On my S...
by Rein de Vries
Wed Aug 12, 2020 12:59 pm
Forum: Foil Kites
Topic: DIY Foil Kites
Replies: 302
Views: 59582

Re: DIY Foil Kites

With some great input from Schietwedder and Kitexpert I finalized my design! Plan is to first make a 5m2 for stronger winds on HF, TT or buggy, and later on a larger more racy model ~11m2 for lower winds. :) Area flat 5m2 AR 6.3 Span 5.6 m 41 cells Airfoils: 17% thick @ 27.6% chord, 1.4% camber in t...
by Rein de Vries
Tue Jul 14, 2020 4:17 pm
Forum: Foil Kites
Topic: DIY Foil Kites
Replies: 302
Views: 59582

Re: DIY Foil Kites

Very much impressed! Looking forward to the gopro footage :D
by Rein de Vries
Sun Jun 14, 2020 5:10 pm
Forum: Foil Kites
Topic: Foil Kite Newcomer
Replies: 6
Views: 613

Re: Foil Kite Newcomer

As a beginner I recommend starting with a 9-11 m2 in about 13-18 knots. Such a rather small kite requires quite some wind to get going at least on a TT, which could be dangerous. Id start in the ligther wind with an assistent to help launching.
by Rein de Vries
Sat Jun 13, 2020 1:53 pm
Forum: Foil Kites
Topic: DIY Foil Kites
Replies: 302
Views: 59582

Re: DIY Foil Kites

For the lower skin I made the following design. 4 rows for the bridles and also various straps on the billowed surface. I used the ideas on the latest commercial models here and there. lowerS.png Also applying H ribs on the center cell and 75% finger ribs on the other cells I have now quite some int...

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