What's rather unusual is the wishbone (windsurfer-like) rig on a boat like that. Looks, too, like you've got two different rig sizes.
I can't find any reference to a Mistral that's set up that way; the open transom and the rudder support pedestal is different too.
I can't find any reference to a Mistral that's set up that way; the open transom and the rudder support pedestal is different too.