U-boat Finder

Non-Commissioned U-boats


This boat was not commissioned into the Kriegsmarine

However she had been ordered and was, at least at one time, planned for commission.



Suspended29 Jan 1945
Laid down
Ordered6 May 1944
ShipyardF. Schichau, Danzig

Captured incomplete on Slip No 3 in Danzig on 30 Mar 45
Schichau Shipyard Hull No: G-1683
Designated TS-8 on 12 Apr 45
Launched at Danzig in July 1945
Provisionally allocated to the Soviet Baltic Fleet
Moved to Libau (Latvia)
Inspected by TNC in Libau on 8 Oct 45 - still incomplete, with bomb damage and flooding in the forward section
Defined in TNC Report on 6 Dec 45 as an “unallocated submarine afloat”
Moved to Kronstadt in late 1945/early 1946
No evidence of completion, commissioning or use
Renamed R-4 on 8 Mar 47

Struck from Soviet Navy list on 28 Feb 48 and released for recovery Broken-up for scrap in 1948

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