sentences:  The first launch of the V-1000 was 11 October 1957 and its first successful intercept was 4 March 1961 where it intercepted an R-12 missile launched from Kapustin Yar.System A used the Dunay-2 designed by V Sosulnikov at NII-37 (which later became NIIDAR) as well as 3 homing radars and an ABM radar.The three homing radars (called RTN (NATO