Light tank T-26 in the prewar years, became the most massive military armored vehicle of the red Army. Quite naturally the base of this tank was widely used by designers to create war machines for various purposes. The most massive non-linear modification of the “twenty-sixth” were chemical tanks which in total volume of production of the T-26 amounted to 12%. In the post-war literature, these combat vehicles were usually called flamethrower and the designation received abbreviation FROM (flamethrower tank): FROM-26, OT-130, OT-133, etc. In fact it is not so. These tanks were intended primarily for contamination, smoke and gametangia.
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