This aircraft looks sweet. I am sure you all might know about it, but for those that may not, the screenshots alone are worth a look! If you like vintage, rustic, Russian aircraft, then this is for you.
I saw one or similar to it at the 2003 Reno Air Races. Those that were there know what I am talking about. Although it did not have the stock engine, it was still pretty cool looking. It sounded like a P-51 because it had the Rolls Royce engine, but looked very eastern.
http://www.captainsim.com/yak3/index.html