This is a new concept, a new approach for a competitive F3F ship. Designed by Thierry Platon, the TP370 is 370 cm wingspan, and use a TP Section going from 7.3 to 6.5 % of thickness !
The flying weight is about 3.5 Kg and is designed to go up to the FAI limit of 5Kg.
To obtain the rigidity, you can easily imagine that there is lots of carbone inside.
I saw if in flight before the french championship but it's too early to conclude anything. the plane has only very few flights.
More pictures here