Could You help with identifying of a plane?

[Didzis]

Could You help identifie plane? Eastern front crash time August_September 1944. Armored plate 3-4 mm thickness with riveted aluminum structure, most like Soviet plane.

 

[Snautzer01]

More pics?

 

[Didzis]

You could see color change on side darker for top and lither for bottom. Aluminium structure and darker place wher outerlayer was riveted.

 

[Didzis]

This piece may be from the same plane

 

[J_P_C]

i would say it is what left from Iron Gustav aka. IL-2