Used on wichita class aor,sturgeon class ssn(637),oliver perry class ffg,iwo jima class lph,emory s. land class as,wasp class lhd,tarawa class lha,mars class t-afs 1,los angeles class ssn(688),an/spn-42t-3,42t-4,andan/spn-46(v)1. weapon system essential
