|Ordered||2 Feb 1935|
|Laid down||11 Feb 1935||Deutsche Werke AG, Kiel (werk 239)|
|Launched||31 Jul 1935|
|Commissioned||17 Aug 1935||Oblt. Hannes Weingärtner|
|Successes||3 ships sunk, total tonnage 5,133 GRT|
1 warship sunk, total tonnage 1,090 tons
Decommissioned 31 July 1944 in Gotenhafen (today Gdynia, Poland) and cannibalized for spare parts. In early 1945 hulk was towed west to Stolpmünde (today Ustka, Poland) and captured there by Soviet forces on 9 March 1945.
Scuttled in late 1945 in Stolpmünde harbor by Russians after being inspected by the Tripartite Naval Commission (TNC) on 28 August 1945. Raised by the Polish harbor authority in 1950 and broken up in 1951.
Men lost from U-boats
Unlike many other U-boats, which during their service lost men due to accidents and various other causes, U-4 did not suffer any casualties (we know of) until the time of her loss.
There was another U-4 in World War One
That boat was launched from its shipyard on 18 May 1909 and commissioned into the Imperial Navy on 1 Jul 1909. The Naval war in WWI was brought to an end with the Armistice signed on 11 Nov, 1918. Read about SM U 4 during WWI.
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