The superior low altitude performance of the weapon, and its new CW semi-active missile seeker resulted in a much higher success rate compared to the earlier S-75 Dvina and S-125 Neva systems. While exact losses are disputed, around 40 aircraft are usually cited as lost to SAMs, and the 2K12 Kub proved the most effective of the three weapons. But in subsequent conflicts, its performance declined as captured examples resulted in effective counter-measures being developed.
