Low-poly 3D model of Soviet aircraft done back in 2015 for Flying Tigers: Shadow Over China game (by Acemaddox).
Produced at RetroStyle Games team: http://retrostylegames.com
As part of bigger batch of planes, most of which had high-poly version modeled first and then details were baked from it to Low-poly one.
PBR textures were created as base and later on slightly simplified because of game engine specs.
5 skins total were created for Polikarpov.