Advice from experience........My tail feathers are Dow Corning blue polystyrene 2lb density that I bought from a builder supply. I cursed mine the whole time I was sanding the foam to the airfoil shape. I would be willing to bet that I spent at least five hours just sanding the foam to shape. Yes, that blue foam is inexpensive and easy to get but unless you are a pro at hot wiring foam and have the correct hot wiring equipment, I would not ever use the blue foam. I tried hot wiring mine before sanding and screwed that up also. Had to remove the foam, install more, hot wired it again to rough shape and then started sanding. Trust me, the blue foam does not sand as easily as the polyurethane does. I still have a full sheet of 4'x8'x2" blue foam that anyone can have if they come and get it.
I am off to the airport right now for a full day of KR YeeeeeeeeeeeeeeHaaaaaaaaaaaaaaaaaaaaaaaaaa!!!!!!! Mark Jones (N886MJ...FIRST FLIGHT made 3-20-2005) Wales, WI USA E-mail me at [email protected] Visit my KR-2S CorvAIRCRAFT web site at http://mywebpage.netscape.com/n886mj/homepage.html
