icans ▁ ▁List ▁of ▁cut aneous ▁conditions ▁ ▁References ▁ ▁External ▁links ▁▁ ▁Category : L ym ph oid - related ▁cut aneous ▁conditions <0x0A> </s> ▁TR V ▁Tre v ally ▁( 8 0 2 ) ▁was ▁one ▁of ▁three ▁Tor ped o ▁Rec overy ▁V ess els ▁operated ▁by ▁the ▁Royal ▁Australian ▁Navy ▁( R AN ) ▁and ▁Def ence ▁Mar itime ▁Services ▁( D MS ). ▁Order ed ▁in ▁ 1 9 6 9 , ▁the ▁vessel , ▁originally ▁identified ▁as ▁TR V ▁ 2 5 4 , ▁was ▁completed ▁in ▁ 1 9 7 0 ▁and ▁assigned ▁to ▁the ▁naval ▁base ▁ ▁in ▁Sydney . ▁The ▁ship ▁received ▁a ▁name ▁and ▁the ▁p enn ant ▁number ▁" TR V ▁ 8 0 2 " ▁in ▁ 1 9 8 3 . ▁In ▁ 1 9 8 8 , ▁the ▁three ▁vessels ▁were ▁sold ▁to ▁D MS . ▁Tre v ally ▁remained ▁at ▁Water hen ▁under ▁D MS ▁control . ▁Tre v ally ▁was ▁active ▁in ▁D MS ▁service ▁as ▁of ▁ 2 0 0 7 . ▁ ▁Design ▁and ▁construction ▁ ▁The ▁class ▁was ▁ordered ▁in ▁ 1 9 6 9 ▁as ▁rep lac ements ▁for ▁World ▁War ▁II - era ▁tor ped o ▁recovery ▁vessels . ▁ ▁The ▁vessels ▁each ▁have ▁a ▁full ▁load ▁disp lacement ▁of ▁, ▁a ▁length ▁of ▁, ▁a ▁beam ▁of ▁, ▁and ▁a ▁dra ug ht ▁of ▁. ▁Prop ulsion ▁mach in ery ▁consists ▁of ▁three ▁G M ▁V 8 ▁dies els , ▁which