Kubinka Tank Museum
When work was stopped on the T-100 project, the SU-100Y was transported to Kubinka in the summer of 1940. In November 1941, at the most critical moment of battle in the suburbs of Moscow, the SU-100Y, together with the 152 mm-gun-armed experimental SU-14 and SU-14-1, was pressed into service in an Independent Artillery Division for Special Duties. Further information concerning the combat record of the unit has not been made known. Unlike its base model (T-100), the SU-100Y prototype survived the war and is a part of the collection at the Kubinka Tank Museum.