Finshed cores trial fit together. Time to install the wing tube sockets.

The sockets are fitted with 1/8" lite ply stops to prevent the tube from entering the foam. The socket is supported on the outer end with 1/8" lite ply plate glued into the access hole. The inner portion of the socket is supported by the root plate, I used aircraft ply since a tab will be located on the bottom of the wing to retain the stabilizer. The filler pieces are sanded down and fit in, everthing is glued with Probond poly glue.