1:5 Scale Yakovlev Yak-3
The drawings I used for my plans is from a Russian book titled The First Yak, I think I don't read cryllic but a Russian friend said that was the title, the drawings show the bottom surface of the airfoil basically flat at 0deg. and there very good drawings 6 or 7 really nice sheets, like I said this is my fourth one and the book is the best documentation I have seen yet, so yes 3 deg @root and 1deg @tip. The version I am building now is 62" span all balsa/ply, with a 91 4cycle, looks like all up weight will be about 9 pounds, 6 channels. I can't post pictures yet as it's in the kitting stages by a well known manufacturer, but stay tuned you will see it here on RCU.