▁Ar tem is ▁and ▁Project ▁Tr ident ▁under ▁aus p ices ▁of ▁the ▁T ud or ▁Hill ▁Labor atory , ▁a ▁facility ▁of ▁the ▁Navy ' s ▁Under water ▁Sound ▁Sound ▁Labor atory . ▁Later ▁the ▁tower ▁was ▁used ▁for ▁additional ▁ac oust ic ▁experiments ▁as ▁well ▁as ▁ocean ographic ▁observations , ▁wave ▁height ▁measurements , ▁optical ▁observations , ▁air ▁contain ment ▁measurements ▁and ▁measurements ▁of ▁the ▁effects ▁of ▁the ▁ocean ▁environment ▁on ▁the ▁structure ▁itself . ▁ ▁The ▁T ud or ▁Hill ▁Labor atory ▁was ▁the ▁termin us ▁for ▁a ▁number ▁of ▁under se a ▁systems ▁supporting ▁both ▁pass ive ▁and ▁active ▁son ar ▁development ▁and ▁environmental ▁and ▁ocean ographic ▁ac oust ical ▁research ▁with ▁shore ▁facilities ▁also ▁available ▁to ▁visit ing ▁research ers ▁of ▁Navy ▁projects ▁with ▁suitable ▁clear ances ▁and ▁fund ing . ▁The ▁labor atory ▁was ▁the ▁only ▁Atlantic ▁Navy ▁research ▁and ▁development ▁facility ▁with ▁direct ▁access ▁to ▁an ▁oper ational ▁S OS US ▁facility , ▁the ▁adjacent ▁Naval ▁Fac ility ▁B erm uda , ▁allowing ▁studies ▁and ▁evaluation ▁of ▁oper ational ▁hardware . ▁Data ▁from ▁the ▁labor atory ' s ▁experimental ▁sens ors ▁was ▁originally ▁sent ▁from ▁the ▁tower ▁terminal s ▁to ▁the ▁labor atory ▁by ▁cable ▁until ▁replaced ▁by ▁mic row ave ▁link . ▁The ▁labor atory ▁had ▁assigned ▁vessels ▁to ▁serve ▁the ▁tower ▁and ▁conduct ▁research , ▁including ▁the ▁R / V ▁Er line , ▁a ▁ ▁former ▁oil ▁field ▁crew ▁boat . ▁In ▁ 1 9 6 4 ▁the ▁tower ▁was ▁used ▁to ▁support ▁the