ORIGINAL: UStik
As to the TBX-1 wing, there's no picture of a plan view, but the small ribs have long tabs and the big ribs have small tabs. The upper part in the third picture could be a brace. Looks all like anhedral wing (opposite of dihedral) built upside down. The airfoil seems very conventional, likely a NACA 4-digit series with their blunt leading edge. There's no washout (neither washin) since all ribs on their tabs would be parallel to the building board.
Where's the plan view?
Patience...patience mein freund. To quote the "Wicked Witch of the West" in the movie
The Wizard of Oz "...All in GOOD TIME my little UStik...all in GOOD TIME..."
I guess I might be able to answer my question by looking at the side view, but I don't have it in front of me.