This model of the Russian high altitude fighter prototype was designed by Kancho Iliev, and can be downloaded for free at his site http://paperwings.phobby.com/index.php?CMD=9 There are two pages of parts, but no instructions. He offers a bit of a challenge. "This kit is like a puzzle - You got Drawings - try to build it." There are a few building tips, but they don't translate very well, and I didn't find them to be much help. I printed out a shrunk down, 1/72 scale version based on wing span. The only photo I have seen of the Su-1 captures it sitting on a snow covered airfield, so I decided to try to recreate that image. I wanted the display base to look cold, so I textured it with grey, weathered wood to avoid warm colors. Then I made a snowscape, using bits of cotton ball soaked in diluted white glue to build up varying depths - like where the snow melted a bit and slid off the wings and fuselage. After painting the groundwork white, I sprinkled on a groundwork snow product. The airplane itself still has a little unmelted "snow" in the shadows. To add to the feeling of cold, I made icicles from clear plastic coated with gel medium and hung a few of them off the airplane. Overall, I'm happy with the way this model turned out, and I'd certainly recommend it to anyone who wants to take a stab at it. Many thanks to Kancho for providing it for free.