▁the ▁German ▁How ald t swer ke - De utsch e ▁Wer ft ▁( HD W ) ▁ship yard . ▁Both ▁ships ▁were ▁simultaneously ▁launched ▁on ▁ 1 4 ▁May ▁ 1 9 8 3 ▁and ▁commission ed ▁on ▁ 1 5 ▁August ▁ 1 9 8 4 . ▁Two ▁more ▁were ▁planned , ▁but ▁were ▁never ▁ordered . ▁ ▁The ▁K ast uri ▁class ▁is ▁based ▁on ▁HD W ' s ▁F S ▁ 1 5 0 0 ▁design . ▁The ▁two ▁ships ▁const itute ▁the ▁Royal ▁Malays ian ▁Navy ' s ▁ 2 2 nd ▁Cor v ette ▁Squadron . ▁Their ▁home port ▁is ▁L um ut ▁at ▁the ▁west ▁coast ▁of ▁the ▁Mal ay an ▁Pen ins ula , ▁facing ▁the ▁Stra it ▁of ▁Mal ac ca ▁and ▁the ▁Indian ▁Ocean . ▁ ▁Character istics ▁ ▁S ens ors ▁and ▁Electron ics ▁The ▁S LE P ▁modern isation ▁compr ised ▁extensive ▁changes ▁to ▁the ▁original ▁configuration ▁of ▁the ▁ships , ▁aim ed ▁at ▁both ▁extending ▁their ▁service ▁life ▁as ▁well ▁as ▁impro ving ▁combat ▁capabilities . ▁The ▁T ACT IC OS ▁Com bat ▁Management ▁System ▁from ▁Th ales ▁replaced ▁the ▁older ▁Sign aal ▁SE W AC O ▁MA ▁command ▁system ▁and ▁the ▁DR 3 0 0 0 S ▁Electron ic ▁Support ▁Me asures ▁suite ▁including ▁the ▁Ther ma ▁SK WS ▁Dec oy ▁La unch ing ▁System ▁was ▁installed . ▁The ▁DA - 0 8 ▁search ▁rad ar ▁and ▁the ▁WM 2 2 ▁fire ▁control ▁rad ar ▁were ▁over h au