SU-100Y
In service 1940 - 1941
Experimental one-off. A naval 130 mm gun mounted on the T-100 heavy chassis, held back for the defence of Moscow.
Built byFactory No. 185 (Leningrad)

Development history
Conceived during the Winter War to demolish Finnish concrete works, the single SU-100Y arrived too late for that conflict. In late 1941 it was pulled from the proving ground into an independent heavy artillery unit covering the approaches to Moscow. It survives at Kubinka, the only vehicle of the T-100 family left intact.
Notable actions
- Battle of Moscow