▁of ▁Naz i ▁Germany ' s ▁Kriegs marine . ▁She ▁was ▁ordered ▁in ▁May ▁ 1 9 3 8 ▁as ▁part ▁of ▁Germany ' s ▁naval ▁re arm ament ▁program . ▁Her ▁ke el ▁was ▁laid ▁down ▁in ▁Bre men ▁in ▁November ▁ 1 9 3 8 . ▁After ▁roughly ▁seven ▁months ▁of ▁construction , ▁she ▁was ▁launched ▁in ▁June ▁ 1 9 4 0 ▁and ▁formally ▁commission ed ▁into ▁the ▁Kriegs marine ▁in ▁September ▁ 1 9 4 0 . ▁ ▁During ▁her ▁three - year ▁career , ▁U - 1 0 5 ▁s ank ▁ 2 3 ▁vessels ▁for ▁a ▁total ▁loss ▁of ▁ ▁before ▁being ▁s unk ▁by ▁the ▁Free ▁French ▁Forces ▁off ▁the ▁coast ▁of ▁Dak ar ▁( S en eg al ) ▁in ▁June ▁ 1 9 4 3 . ▁ ▁Const ruction ▁and ▁design ▁ ▁Const ruction ▁ ▁U - 1 0 5 ▁was ▁ordered ▁by ▁Naz i ▁Germany ' s ▁Kriegs marine ▁on ▁ 2 4 ▁May ▁ 1 9 3 8 ; ▁her ▁ke el ▁was ▁laid ▁down ▁on ▁ 1 6 ▁November ▁ 1 9 3 8 ▁by ▁De S chi MA G ▁AG ▁Wes er ▁in ▁Bre men ▁as ▁yard ▁number ▁ 9 6 8 . ▁She ▁was ▁launched ▁on ▁ 1 5 ▁June ▁ 1 9 4 0 ▁and ▁commission ed ▁on ▁ 1 0 ▁September ▁under ▁the ▁command ▁of ▁Kap it än le ut nant ▁Georg ▁Sche we . ▁ ▁Design ▁German ▁Type ▁IX B ▁sub mar ines ▁were ▁slightly ▁larger