SU-D15 Assault Self Propelled Gun

The SU-D15 Assault Self Propelled Gun was developed as an experimental design to up arm the inadequate SU-85 which was based on the T34/85 chassis. The vehicle was designed in 1941 and fitted a modified SU-85 chassis with a 152mm D-15 howitzer. However, the chassis was not heavy enough to provide sufficient stability when the weapon was fired. As a result, the project was dropped.

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