ROKKAKU

 Click to see the plan

In Japanese, Rokkaku means "six angles".

The stability and pull of the Rokkaku are excellent for kap.

This kite has one of the best aerodynamic efficiency that I know.

It only needs to pay attention to the bows of the spars. I succeeded to adjust the Rokkaku 1.7 made of tyvek in a gusty wind Beaufort 7.

With a lower spar more flexible than the upper spar, the stability is certain in all winds.

It is important to understand that the lower spar must always be more bowed than the upper spar, whatever the wind conditions. But the force of the wind is always much greater on the upper part of the sail. If it comes to the moment when this force bow the upper spar more than is the lower spar, the lower part of the sail will be too much active, and the Rokkaku will rotate, head down, in a long dive.

The H bridle layout is more stable but more difficult to set.