Yes the tube guides run to the bottom of the fillet for the wing. A normal size ball drive works. This is a clean and neat way to have the attachment. I used the Styrene plastic tubes from the "local" hobby shop these are used for other modeling things like trains and such.

Another little trick is to only make the hole in the fuse big enough to allow the ball driver to pass. But its small enough that the screw can't come out. This way you never loose the screws and they are captured in the tubes/guides.


TN