БТМ-3 – WalkAround

W БТМ-3 (Russian: БТМ-Bisztrohodnaja transejnaja Быстроходная траншейная машина/machine, Hungarian: reasonable árokoló machine), manufactured in the Soviet Union military trenching machine. Not more than 1.5 m depth and the responsibility of 1.1 m wide (marks) rapid excavation of trenches. Rocky soil didn’t apply.

Źródło: БТМ-3 na Wiki