Here is my plank flying wing with vortex generators

Span 60"
2. Root Cord : 11.5", Tip Cord : 7.5"
3. Airfoil : PW 106, 4. AUW : 605 g

It is a "plank" style flying wing. The wing is "hotwired" out of "thermocole" a.k.a closed cell expanded polystyrene foam. It has a 1.5 mm X 3.0 mm CF strips glued on the top and bottom surface of the wing to act as spar (no additional  rod or tube). The whole thing acts as a beam, and with the CF under tension becomes very stiff.. and is very very light.  In the past I  have used paper for skinning the foam. This time, used  monokote, ironed-on. With some testing, the suitable temp was found which stuck & shrunk the film without damaging the foam. The wing covered with monokote, came out very good. The elevon is a constant cord elevon @ 10 % of wing area

The complete build details are at http://myrahulroy.blogspot.in/2016/11/plank-flying-wing.html

I went through your blog.  Really Awesome!!!!!