UD-4

UD-4 was an O 21-class submarine built for the Royal Netherlands Navy during the 1930s for European service. The boat was captured incomplete during the German invasion of the Netherlands in May 1940 during World War II and was later commissioned into the Kriegsmarine as UD-4. The submarine served as a training boat during the war. She was decommissioned in early 1945 and scuttled in May 1945.

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Wikidata
length 77.7 metre, draft 3.95 metre, beam 6.8 metre, 
O 21-class submarine, U-boat, Rotterdamsche Droogdok Maatschappij, Kriegsmarine, Netherlands, 

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Location: KML, Cluster Map, Maps,

1939-09-01T00:00:00Z

1939-09-01T00:00:00Z

World War II Q362

1945-03-19T00:00:00Z

1945-03-19T00:00:00Z

ship decommissioning

1939-04-20T00:00:00Z

1939-04-20T00:00:00Z

keel laying

1941-01-28T00:00:00Z

1941-01-28T00:00:00Z

ship commissioning

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Frameless

Type	Subtype	Date	Description	Notes	Source