Trials of foreign materiel, including captured vehicles, were quite limited before the war. This had a lot to do with the technical condition of the vehicles that fell into the hands of the Red Army. As a rule, this condition was far from ideal, meaning that the scope of possible trials was limited. Full scale trials were rare. For example, the Pz.Kpfw.I Ausf.A tank captured in the fall of 1936 in Spain arrived more or less intact, and therefore could be used for many trials, including trials against various obstacles. It's hard to say that these trials were very useful since Soviet tanks of that era were already more than a match for this tank. The T-26 that fought against the Pz.Kpfw.I Ausf.A in Spain surpassed it in all parameters. Nevertheless, there was a certain value in these trials.
|Pz.Kpfw.III Ausf.H tank "Isabella" during winter trials, January-March 1942.
|The first obstacle: a 5 meter wide and 3 meter deep trench.
|The German tank spun its tracks helplessly when trying to climb. It did not have enough traction to get out of the trench.
|The T-34 could cross the trench even with just one fascine.
|The Pz.Kpfw.III's bad luck continued with the second trench. It could not climb out either.
|The first line of obstacles: two layers of anti-tank hedgehogs made from 130x130 mm steel angle bars arranged in two rows.
|The tank crushed the hedgehogs and stakes.
|Second line of obstacles: the hedgehogs are arranged in three rows.
|These hedgehogs were also not a problem.
|Anti-tank hedgehogs #20-22 built from channel bars.
|The only type of obstacle that the German tank could not cross on the first try.
|The hedgehogs were not a problem for the T-34 and KV-1.
|Lever anti-tank mine, the last participant of winter trials.
|Trials showed that the mine worked flawlessly.