Amazing - thank you for posting the pictures! It really gives a good idea of the mixed construction of the Shturmovik. In actual fact, there was no such thing as an "IL-2M" - that designation is a fabrication (although I know well that model companies persist in using it). The designation for this swept-wing version should be "IL-2m3", but even that's a fabrication. The Soviets informally called the swept-wing version of the IL-2 the "so strelkoi", or arrow, in Russian. Sorry to be so nitpicky, but I'm finishing up a book on the IL-2, and one of the things I want to do is educate people on the proper designations of the IL-2. Still, a great post and thank you again, ozhawk40!
Venganza