Ribs.Here is where i began to be really creative.
I wasnt really shure how to make them.
I only was shure i wanted the better inflation possible (so bigger holes) and strong ribs as i dont wanted to see my kite stretch or tear (so smaller holes).
Solution to this problems was to make quite big vents reinforced with mesh and plied fabric strips.
I also made the last segment of every rib (last 15 cm) of mesh.
This involved a lot of work and also some additional weight I'm now convinced is not necessary.

In next kite I'll go for no holes at all.
I'll use mesh to do a central section of the rib (about 20 cm) and another section at the end in the trailing edge (again 20-25 cm).
Maybe I'll put 2 vertical strips of fabric to add more strength.
I'm shure this would do the job without compromising kite integrity.

Here you can find a gallery showing my doubts on wich kind of shape my vents should be.
Now I've see the kite inflated I now all this work but next time I'll go for a more rational approach.

Ah ! When you cut the ribs remember to mark with a pen the point where the sewing will start at Leading edge.

---> 7- ASSEMBLING