Removable wing system. (it gives a bit more weight though)... show wing outer part, and center section at connection.
The "spar-connector" is made by some lightweight "plasticstuff" i got (dont know what it is, as written before in a post.
here its slides together:
and how its locked. Bottom of spar opening in centersection is reinforced with a bit plywood, and got a hole with threads made at underside of centerwing, through the bottom of outer wing spar too. Perfect fit made for one of my green plastic screws..... and keeps it locked tight.
Here you also see my "belly landing" wing supports.
(yes, wings underside got a white/black letter pattern for easier see it in air, and whats up and down at distance)