German Ostketten and Winterketten tracks are well known among armour enthusiasts. Even the Americans had duckbill tracks to decrease ground pressure of their armour. Here is a less conventional Soviet experiment in improving off-road performance.
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T-26 tank. Additional endless track, collapsed for transport. Front view.
T-26 tank. Additional endless track, collapsed for transport. Left view.
T-26 tank. Additional endless track. The tank is driving in the snow.
T-26 tank. During movement, the endless track slipped off and bent the support roller.
Provided by Aleksei Yegorov (karopka.ru).