These "soviet shitty designs" are also 50-60 years old. So they are as shitty as American PWR/BWR designs used in TMI and Fukushima. Positive void coefficient i

These "soviet shitty designs" are also 50-60 years old. So they are as shitty as American PWR/BWR designs used in TMI and Fukushima. Positive void coefficient is certainly a design oversight (same as design errors in the early PWR/BWR reactors), but without intentionally fucking with reactor and with a good control system, it can properly work without issues and 10 operational RBMK reactors demonstrate it in practice.