Daniel Vélez Bravo <<danielvelezbravo>>
writes:

How come we haven't hear any gossip regarding the Icaro's tip
definition that they used on Forbes? A few friends have sent me some pictures of
what seems like a "winglet" for elliptical wings, that the Icaro pilots attached
to their machines back then.

It seems to elongate the aspect ratio, and project a more aggressive tip but
probably with a little less induced vortices?

It looks like a "do-able" thing for any elliptic wing.

As I recall it wasn't attached but part of the sail material. It's
been around for at least a couple of years.