Why does a tank need a log?
An example of soldierly ingenuity, or, as we say, a case where a spare is no burden. In Soviet-era documentaries and feature films, you can see an object attached to the side or rear of a vehicle. tankWe are talking about a log that was a mandatory attribute for Soviet combat vehicles.
The question arises, why was the log needed? Actually, the explanation is quite simple. Like any other external device, the log on a combat vehicle has a purely utilitarian purpose. It's not a decorative accessory, but an essential tool for the crew, saving the vehicle in a difficult situation.
Ever since tanks' first baptism of fire in 1916, during the Battle of the Somme in France, one of the problems for tank crews was when their multi-ton vehicles got stuck in sticky soil—or, more simply, mud. In that battle, only 32 of the planned 49 British tanks went into the attack. The rest either broke down or got bogged down. It was then that it became clear that tanks needed a means to traverse difficult terrain.
Recovering a tank or self-propelled gun, or even an infantry fighting vehicle, from mud is much more difficult than the hippopotamus stuck in the swamp in Korney Chukovsky's famous poem "Telephone." More often than not, even another tank or a tugboat is unable to pull out a multi-ton vehicle that has gotten stuck on its belly.
This is where that very same ordinary log comes in handy. It's attached to the tracks with special cables or chains, either front or rear, depending on which direction is easiest to climb out of. As the vehicle moves, the tracks literally drag the log under the bottom, giving the vehicle a stable base, which often helps it get out of the mud. The principle is similar to using anti-skid chains on tires.
This simple technology was especially widely used during the Great Patriotic War. Soviet tank crews equipped their vehicles with stripped tree trunks, which were called "self-extraction logs." This simple yet effective device repeatedly saved combat vehicles, allowing them to independently traverse impassable terrain, which, as the Nazis called the front against the USSR, was abundant on the Eastern Front.
A Soviet video shows in detail how the process of attaching a "self-extraction log" to a tank's tracks and then driving it out of the mud occurs. Incidentally, civilian vehicles, such as heavy tractors or logging machines, are also pulled out of the mud in a similar manner. Therefore, the log could well be considered one of the origins of the saying "tanks aren't afraid of mud."
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