If you have additional information (ex: specificity of piloting, various characteristics...) on the hang glider Unknown / Inconnu by -, you can supplement his card by adding your comment or write to us :
This wing looks very much like an attempt to make a weight shift version of Platz's canard wing. The sailboat type jib canards are identical as is the sail like main wing. The angle of incidence between the main wing and the canards looks unworkable in this design but perhaps there was some means of controlling the pitch angles?
I wrote an article on Platz's wing wing with photos which was publish in the USHGA magazine if anybody is interested further.