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German submarine UD-3
Career (Nazi Germany)
Name: UD-3
Builder: Wilton-Fijenoord, Rotterdam
Laid down: 10 April 1939
Launched: 1 May 1940
Commissioned: 8 June 1941
Decommissioned: 13 October 1944
Fate: Scuttled 3 May 1945
General characteristics [1]
Class & type: O 21-class submarine
Displacement:
  • 990 tons surfaced
  • 1205 tons submerged
Length: 77.70 m (254 ft 11 in)
Beam: 6.80 m (22 ft 4 in)
Draught: 3.95 m (13 ft 0 in)
Propulsion:
  • 2 × 2,500 PS (2,466 bhp; 1,839 kW) diesel engines
  • 2 × 500 PS (493 bhp; 368 kW) electric motors
Range:
  • 10,000 nmi (19,000 km; 12,000 mi) at 12 knots (22 km/h; 14 mph) surfaced
  • 28 nmi (52 km; 32 mi) at 8.5 knots (15.7 km/h; 9.8 mph) submerged
  • Complement: 39
    Armament:
    • 4 × 21 in (533 mm) bow torpedo tubes
    • 2 × 21 in stern torpedo tubes
    • 2 × 21 in (1×2) external-traversing TT amidships

    UD-3 was an O 21-class submarine. The boat was laid down as the Dutch submarine K XXV and renamed O 25 but was captured during the German invasion of the Netherlands in World War II and commissioned in the Kriegsmarine.

    Ship history[edit | edit source]

    The submarine was ordered on 28 June 1938 and laid down on 10 April 1939 as K XXV at the Wilton-Fijenoord, Rotterdam. During construction she was renamed O 25, and was finally launched on 1 May 1940. Following the German invasion of 10 May 1940, O 25 was scuttled in the Nieuwe Waterweg near Rotterdam because there was no tugboat available to tow her to the United Kingdom.[2]

    The boat was raised by the Germans and it was decided to repair and complete her. She served in the Kriegsmarine as UD-3 and was commissioned on 8 June 1941.[2]

    From June to July 1941 UD-3 served as a trial boat in Kiel while attached to the 3rd Flotilla. In June she was transferred to the 5th Flotilla also in Kiel where she was used as a school boat. She remained there until August that year. From August 1941 until September 1942 the boat was stationed at Lorient in occupied France and attached to the 2nd Flotilla. In October 1942 she was transferred to 10th Flotilla also in Lorient where she served until February 1943.[2]

    When patrolling off the west coast of Africa UD-3 spotted and sank the 5,041 GRT Norwegian freighter Indra on 26 November 1942.[2]

    In March 1943 the boat was transferred to Bergen in occupied Norway and attached to the U-boot Abwehr Schule to be used as school boat until October 1944.[2] 13 October 1944 UD-3 was decommissioned after being damaged in an air raid on Kiel. On 3 May 1945 the boat was scuttled.[2]

    References[edit | edit source]

    Bibliography[edit | edit source]

    • Busch, Rainer; Röll, Hans-Joachim (1999). German U-boat commanders of World War II : a biographical dictionary. London, Annapolis, Md: Greenhill Books, Naval Institute Press. ISBN 1-55750-186-6. 
    • Gröner, ErichExpression error: Unexpected < operator. (1991). U-boats and Mine Warfare Vessels. 2. London: Conway Maritime Press. ISBN 0-85177-593-4. 



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