Ohh, my mistake Charles. I translated something from Dutch to literally. When we speak of an unstayed here it means that is doesn't have diamond stays and no spreaders. when we say unstayed platform it means what you concluded. I forgot that it doesn't work that way in english.
So the mast is stayed but it doesn't have diamond wires. And it similar to other cat masts like rotating etc.
I don't know the material specs. Sorry.
And as a last remark

"And you know that for the quickest and best coverage of Technological advancements you need to keep an eye on the Formula 16 class and Formula 16 class forum !! "
Hell I went all the way to Paris to get you all the first pictures of that new hul shape. And on what type of boat is it featured first ?

Okay I had my fun. Sorry to have caused the misunderstanding
wouter