The SU-100Y, initially designated T-100Y, was a Soviet prototype self-propelled gun, developed from the chassis of the prototype T-100 tank. It was developed during the Winter War with Finland to incl
The SU-85 was a Soviet self-propelled gun used during World War II, based on the chassis of the T-34 medium tank. Earlier Soviet self-propelled guns were meant to serve as either assault guns, such as