▁ 1 1 6 1 . ▁She ▁was ▁launched ▁on ▁ 9 ▁July ▁ 1 9 4 4 , ▁and ▁commission ed ▁under ▁the ▁command ▁of ▁Kap it än le ut nant ▁Hel mut ▁Man se ck , ▁on ▁ 6 ▁August ▁ 1 9 4 4 . ▁ ▁Design ▁ ▁Like ▁all ▁Type ▁XX I ▁U - bo ats , ▁U - 3 0 0 2 ▁had ▁a ▁disp lacement ▁of ▁ ▁when ▁at ▁the ▁surface ▁and ▁ ▁while ▁sub mer ged . ▁She ▁had ▁a ▁total ▁length ▁of ▁ ▁( o / a ), ▁a ▁beam ▁length ▁of ▁, ▁and ▁a ▁dra ug ht ▁length ▁of ▁. ▁The ▁sub marine ▁was ▁power ed ▁by ▁two ▁M AN ▁SE ▁super charg ed ▁six - cy l inder ▁M 6 V 4 0 / 4 6 K BB ▁dies el ▁engines ▁each ▁providing ▁, ▁two ▁S iem ens - Sch uck ert ▁G U 3 6 5 / 3 0 ▁double - act ing ▁electric ▁mot ors ▁each ▁providing ▁, ▁and ▁two ▁S iem ens - Sch uck ert ▁silent ▁running ▁G V 2 3 2 / 2 8 ▁electric ▁mot ors ▁each ▁providing ▁. ▁ ▁The ▁sub marine ▁had ▁a ▁maximum ▁surface ▁speed ▁of ▁ ▁and ▁a ▁sub mer ged ▁speed ▁of ▁. ▁When ▁running ▁on ▁silent ▁mot ors ▁the ▁boat ▁could ▁operate ▁at ▁a ▁speed ▁of ▁. ▁When ▁sub mer ged , ▁the ▁boat ▁could ▁operate ▁at ▁ ▁for ▁; ▁when ▁sur fac ed , ▁she ▁could ▁travel ▁ ▁at ▁.