“The result, as can be seen from the picture below has the dimensions of the wing of a large airliner but is lightweight and semi-rigid. The wing is formed by 9 ashlars hinged together by flexible joints, thanks to which it can easily change configuration in order to vary the wing lift factor.”
A scientific publication is on
“We observed a slight deterioration of the over-all aerodynamic performances of the curved wing (non-tethered kite) with respect to the flat configuration.”
The expected advantage is eliminating the cantilever effect of a flat wing, allowing saving mass, keeping a still high L/D ratio.
See also the comments on
Please what are your observations? Thanks.