Italian submarines in World War Two

CB 21
CB 21

CB 21 (USMM)

ClassCB (42) 
Laid down Caproni-Taliedo, Milan
End service
Loss date29 Apr 1945
Loss position44° 52'N, 13° 49'E
History Captured by the German when still under construction. Transferred to the Italian Socialist Republic on completion in late 1943. Rammed and sunk in error by a German F-lighter in the Adriatic on 29 April 1945


CommanderDate fromDate toCommand notes
G.M. Paolo De Nicola 194529 Apr 1945

Ships hit

No ships hit by this submarine.

Patrols and events

 CommanderDateTimePortArr. dateArr. timeArr. portMilesDescription
8 Sep 1943Taliedo (Milan)8 Sep 1943Taliedo (Milan)Seized by the Germans while under construction.

De Nicola, Paolo25 Apr 1945Trieste25 Apr 1945PolaPassage Trieste-Pola

De Nicola, Paolo29 Apr 19450445Pola29 Apr 1945SunkTried to escape to Ancona, but rammed and sunk by a German vessel shortly after leaving. Also reported as going to Brioni Island.

3 entries. 3 total patrol entries (0 marked as war patrols) and 0 events.

All Italian submarines