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by jannik
Fri Oct 06, 2017 8:23 am
Forum: Foil Kites
Topic: Concept Air Smart Wave 6.5 & 4.5 & 3
Replies: 64
Views: 6340

Re: Concept Air Smart Wave 6.5 & 4.5 & 3

If you think lowering AR is an answer to foil kite performance you are mistaken. I don't. I'm offering an explanation to some of the differences people experience when they compare kites other than "it's because it's a foil/LEI/single-twin skin/ARC/other....!". Single skin efficiency in low air spe...
by jannik
Thu Oct 05, 2017 1:14 pm
Forum: Foil Kites
Topic: Concept Air Smart Wave 6.5 & 4.5 & 3
Replies: 64
Views: 6340

Re: Concept Air Smart Wave 6.5 & 4.5 & 3

2)LEI's are single skins. This has some advantage in low winds, single skin kite tolerates higher AoA before backstall. Difference in practice is you can just sheet in a LEI to get some power (with very low airspeed), but you must get some flying speed to a foil kite. Just sheeting in without speed...
by jannik
Wed Oct 04, 2017 8:16 am
Forum: Foil Kites
Topic: Concept Air Smart Wave 6.5 & 4.5 & 3
Replies: 64
Views: 6340

Re: Concept Air Smart Wave 6.5 & 4.5 & 3

Yes, I will have to test and see. I have bars both with and without trim so no problem. I left foils for leis only because the leis where much better in waves in my experience, so this kite came as a plessant surprise (I hope it lives up to the expectations). I never understood why foils always had ...
by jannik
Tue Oct 03, 2017 8:33 am
Forum: Foil Kites
Topic: Concept Air Smart Wave 6.5 & 4.5 & 3
Replies: 64
Views: 6340

Re: Concept Air Smart Wave 6.5 & 4.5 & 3

Hi Stef,

How much are you using the trim line? For my lei's I have removed the trim (very much like the BRM bar) and rely on the sheeting range. I have have a 4.5 and 6.5 coming and need to know if I have to install a trim system again.

Br jannik
by jannik
Fri Sep 08, 2017 2:28 pm
Forum: Board Builders
Topic: Building a Plywood Shinnster / BRM Paipo
Replies: 22
Views: 2451

Re: Building a Plywood Shinnster / BRM Paipo

The honor of inventing this method should go to "Tungsten" who made a thread about it over at losethestraps.com. Here is an album of images of a board: https://goo.gl/photos/ugWRkwg3SDq3D9dn8 Here is a boring video of the same board being ridden: https://youtu.be/1-WX_bmRIpo On my channel there are ...
by jannik
Fri Sep 01, 2017 7:54 am
Forum: Board Builders
Topic: Carbon Tow
Replies: 7
Views: 630

Re: Carbon Tow

If you search on Aliexpress you will find a seller which has 12K 28mm*10m. rolls for $30 + shipping. I don't know if that will do it for you?
by jannik
Thu Aug 31, 2017 9:26 am
Forum: Board Builders
Topic: Building a Plywood Shinnster / BRM Paipo
Replies: 22
Views: 2451

Re: Building a Plywood Shinnster / BRM Paipo

icedub wrote:
Wed Aug 30, 2017 11:29 pm
Interesting! Could you show me what the stringer looks like before you glue anything to it?
stringer.png
gluing-to-stringer.png
by jannik
Wed Aug 30, 2017 7:20 pm
Forum: Board Builders
Topic: Building a Plywood Shinnster / BRM Paipo
Replies: 22
Views: 2451

Re: Building a Plywood Shinnster / BRM Paipo

Thanks. Those are actually two different boards. First board was glassed with 2 layers of about 130 g. If I remember correctly. Two last pictures is of a board which started as linseed oiled only. That worked well until I jumped over a large wave. It split in half length wise. I restored it and lami...
by jannik
Tue Aug 29, 2017 9:46 pm
Forum: Board Builders
Topic: Building a Plywood Shinnster / BRM Paipo
Replies: 22
Views: 2451

Re: Building a Plywood Shinnster / BRM Paipo

I get all my rocker from the stringer. Wood is glued onto the stringer like this
gluing.png
and planed to a blank like this:
blank.png
by jannik
Tue Aug 29, 2017 1:13 pm
Forum: Board Builders
Topic: Building a Plywood Shinnster / BRM Paipo
Replies: 22
Views: 2451

Re: Building a Plywood Shinnster / BRM Paipo

If you have access to paulownia wood I think it is a better option. Certainly lighter. I have been building wooden kite surfboards by making a wooden stringer and then glueing wood around that stringer, plane it out, and then trace and cut the outline. Glassing is up for debate. I've used everything...

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