▁maximum ▁rate ▁of ▁ 4 0 0 ▁r ounds ▁per ▁minute ▁per ▁bar rel ▁( cyc lic ). ▁The ▁gun ▁saw ▁military ▁action ▁in ▁the ▁ 1 9 8 8 ▁Spr at ly ▁Islands ▁naval ▁battle ▁and ▁received ▁positive ▁feedback ▁from ▁the ▁Chinese ▁n avy . ▁ ▁Type ▁ 7 6 F ▁The ▁Type ▁ 7 6 F ▁was ▁a ▁development ▁to ▁overcome ▁the ▁earlier ▁Type ▁ 7 6 ' s ▁inher ent ▁short com ings : ▁ ▁due ▁to ▁the ▁open ▁mount , ▁the ▁Type ▁ 7 6 ▁was ▁subject ▁to ▁natural ▁elements ▁such ▁as ▁sal inity ▁and ▁hum id ity , ▁thus ▁requiring ▁constant ▁maintenance . ▁In ▁addition , ▁the ▁Type ▁ 7 6 ▁had ▁no ▁direct ▁link ▁to ▁a ▁fire - control ▁system ▁( FC S ). ▁The ▁Type ▁ 7 6 F ▁was ▁developed ▁to ▁solve ▁this ▁problem ▁by ▁adopt ing ▁a ▁fully ▁en closed ▁tur ret ▁which ▁included ▁an ▁electro - opt ical ▁( opt ron ic ) ▁FC S . ▁The ▁entire ▁system ▁can ▁be ▁handled ▁by ▁a ▁single ▁crew ▁member ▁hous ed ▁in ▁a ▁one - man ▁operator ▁console ▁integrated ▁with ▁the ▁gun . ▁Today , ▁the ▁Type ▁ 7 6 F ▁remains ▁in ▁service ▁ab o ard ▁many ▁auxili ary ▁vessels ▁of ▁the ▁Chinese ▁n avy ▁while ▁the ▁more ▁advanced ▁and ▁more ▁cost ly ▁Type ▁ 7 6 A ▁is ▁used ▁by ▁surface ▁combat ants . ▁ ▁Type ▁ 7 6 A ▁ ▁The ▁Type ▁ 7 6 A ▁is ▁a ▁fully ▁en closed ▁and