Interview ADVANCE 20/4/2020 MM, Valery Chapuis, Simon Campiche, Kari Eisenhut, Silas Bosco, Christian Proschek

Interview ADVANCE 20/4/2020 MM, Valery Chapuis, Simon Campiche, Kari Eisenhut, Silas Bosco, Christian Proschek 1- What can the R&D team comment about the internal structures of current paragliders? Are we still far from a more solid and cohesive structure in order to produce a 6 AR or lower glider with 2 line design? The engineering of two-line gliders does not require excessive solid structures. Much more important is the right balance between sufficient stiffness for a clean surface on the one hand and enough flexibility to absorb the energy of possible turbulence on the other hand; this is the goal to strive for. Actually, this logic applies to every paraglider design, but we will have to find quite innovative airfoil shapes to satisfy the requirements made at a low aspect ratio wing with merely two suspension line rows (or groups of line rows). Certainly, it would be imaginable to realize a very stiff wing that only needs two row...