FlatCat Boost/Glider Build, Part 5 - Some Mighty Fine Wing Assembly

Preparing the wing root edge for gluing…

The MRm instructions say to bevel the root edges.  This is done to provide a better gluing surface to join the two halves of the wing.   One can get by with eyeballing and free-hand sanding this bevel with a sanding block.  Being a careful modeler (yeah…right…), I like to be more precise.

I prop each wing half up to the prescribed dihedral angle – in this case – 2 inches root to tip, and sand the bevel with a vertically oriented sanding block.  It’s all about control, my friends.

TIP: Again it is wise to pay attention to which wing is being worked on, and sand the proper bevel angle.

ANOTHER TIP:  Use of a courser grit sandpaper is recommended here.  The idea is to produce a rougher gluing surface to better ‘grab’ the glue.

 Gluing up the wing…

 As pointed out in the MRm article, a double glue joint is used to join the two halves of the wing.

TIP: It's always wise to use a piece of waxed paper to lay the glued-up wing assembly on, otherwise the bench top becomes a permanent part of the wing.

The instructions say to prop each wing tip up to the specified 2 inches for the dihedral angle.  I prefer to perform this step by laying one wing flat on the table and propping the other wing tip up to 4 inches.  I also place a small weight on the ‘bench top wing’ as an extra measure to keep things from moving around. 
In my workshop, any item that just happens to be sitting around within reach gets pressed into service as a construction jig!

I'll let the assembly dry thoroughly before moving it.

Once the wings are dry a flat, wider gluing surface must be sanded into the bottom of the joint.  Again, courser paper should be used here to help the glue to grab better.

The wing assembly is now ready to attach to the fuselage.