Nyora kupfuurira kweiyi ndima - Muna 1941, kuvakwa kwenzvimbo yeDORA 1 yepasi pegungwa kwakatanga muTrondheim. Makore maviri gare gare, muna June 1943, yakapiwa kumukuru wezvikepe, "Korvettenkapitän" (akazoti "Fregattenkapitän") Rolf Rüggeberg. 13th submarine flotilla yakanga iri front line unit, uye 55 Type VIIC uye &lt;a href="German%20Type%20VII%20submarine%23Type%20VIIC.2F41"&gt;VIIC/41&lt;/a&gt; yakashanda nayo kusvika pakupera kwehondo
Muna May 1945.