Used on tarawa class lha,spruance class dd(963),austin ship class lpd-4 amphibious transport docks,missile aia-to-air phoenix(aim-54),whidbey island class lsd,sirius class t-afs 8,forrestal class cv,oliver perry class ffg,general purpose electronic test equipment,millile all-weather antiship harpoon(agm-84). weapon system essential