▁ 4 0   km . ▁Az im uth ▁limits ▁are ▁ ± 6 0 . ▁ ▁Initial ▁units ▁had ▁a ▁M TB F ▁of ▁only ▁ 5 ▁hours , ▁but ▁later ▁type ▁is ▁ 1 0 0 ▁hours ; ▁M TB F ▁was ▁eventually ▁brought ▁up ▁to ▁ 2 0 0 ▁hours . ▁ ▁The ▁Su - 3 3 ▁used ▁an ▁updated ▁SU V - 3 3 ▁control ▁system , ▁the ▁N 0 0 1 ▁rad ar ▁was ▁largely ▁un changed ▁but ▁with ▁sea ▁optim ised ▁look down ▁cap ability ▁and ▁support ▁for ▁the ▁car rier - based ▁G CI ▁system . ▁ ▁Vari ants ▁N 0 0 1 ▁( RL PK - 2 7 ) ▁Standard ▁model . ▁N 0 0 1 E ▁Ex port ▁version ▁of ▁N 0 0 1 . ▁N 0 0 1 V ▁( RL PK - 2 7 V ) ▁Process or ▁replaced ▁T S 1 0 1 M ▁capable ▁of ▁single ▁target ▁eng agement ▁and ▁simultaneously ▁tracking ▁ 1 0 ▁targets ▁during ▁an ▁eng agement . ▁N 0 0 1 VE ▁( RL PK - 2 7 VE ) ▁F itted ▁to ▁Chinese ▁Su - 3 0 M K K . ▁This ▁will ▁substantial ly ▁improve ▁air - to - air ▁performance , ▁and ▁increase ▁air - to - ground ▁resolution . ▁N 0 0 1 VE ▁incorpor ated ▁the ▁moving ▁target ▁indic ation ▁( MT I ) ▁and ▁mapping ▁capabilities , ▁and ▁cap ability ▁to ▁detect ▁low ▁flying ▁or ▁hover ing ▁hel ic op