Italian submarines in World War Two

S 4
S 4

TypeSea going 
ClassS (Type VII C) (28) 
Laid down 14 Sep 1942 Danziger Werft AG, Danzig, Germany
Launched30 Mar 1943
Commissioned14 Jul 1943
End service10 Sep 1943
Loss date
Loss position
History Taken over by the Germans on 10th September 1943 after Italian armistice. Commissioned as U-429 on 27th October 1943. Sunk at Wilhelmshaven on 30th March 1945 during an US air raid.


CommanderDate fromDate toCommand notes

Ships hit

No ships hit by this submarine.

Patrols and events

 CommanderDateTimePortArr. dateArr. timeArr. portMilesDescription
Amendolia, Angelo17 Jul 1943Danzig17 Jul 1943DanzigStarted trials.

Amendolia, Angelo3 Aug 1943Danzig3 Aug 1943DanzigCompleted trials.

Amendolia, Angelo11 Aug 1943Danzig11 Aug 1943DanzigExercises.
  11 Aug 1943
1239 (e)

(0) Off Danzig.
At 1239 hours, S.4 collided with S.1 while exercising. Both submarines were slightly damaged. C.C. Fraternale (CO of S.1) was blamed for the incident.

Amendolia, Angelo9 Sep 1943Danzig9 Sep 1943DanzigSeized by the Germans at the armistice. No patrols carried out.

4 entries. 4 total patrol entries (0 marked as war patrols) and 1 events.

All Italian submarines