I recieved a box with a variety of 90Three-family kites from Krijn recently on loan to try and enjoy. One of those kites is the 70Four SUL. This is the 2 meter wingspan version of the 90Three which he built a few years ago. Framed in P100 spine, P90 LE and Avia Skinny LS. Very enjoyable on short lines in a light breeze. Here’s a little clip of me figuring it out.
You can find out more about the 90Three and it’s variations here: