U4
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Typ :
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II A
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Feldpostnummer:
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M-13 167
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Shipyard:
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German works Kiel
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Works:
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Second February 1935
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Building number:
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239
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Laid down:
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11th February 1935
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Launched:
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31st July 1935
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Commissioned:
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17. August 1935
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Commanders:
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Appearances:
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4 Things
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Sinkings:
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Whereabouts:
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of the Red Army on 29 March 1945 in Gdynia captured and probably scrapped
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History
The construction contract for the boat was on the 2nd February 1935 to the German works Kiel awarded. The keel was laid on the 11th of February 1935, the launch on 31 July 1935, the putting under Lieutenant Hannes Weingaertner eventually found on 17 August 1935 instead.The boat was one of the first submarines, after the Anglo-German Naval Agreement was placed on the user. After commissioning on 17 August 1935 was the boat to September 1939 as a training boat for the Education Association of U-school or school-submarine flotilla. During the attack on Poland , it was from September 1939 to October 1939 as a front-boat U-boat flotilla school before being assigned from October 1939 to February 1940 as a school again this boat flotilla. When companies Weserübung , the occupation of Norway , it was used from March 1940 to April 1940 as a front-boat U-boat flotilla school to be used again after the successful occupation of Norway as a school boat. After time as a school boat in Neustad tor keel was from 1 July 1940 to 31 July 1944 as a school boat the 21 Flotilla in Pillau allocated where it spent the rest of his tenure.
U 4 undertook while serving four patrols , on which there are three ships with a total tonnage of 5133 GRT and could sink a submarine with 1,090 tonnes.
Usage Statistics
First patrol
The boat ran on 4 September 1939 at 20.00 clock from Wilhelmshaven and expired on 14 September 1939 at 9.00 clock back there a. Permanent on these eleven days and about 553 nm long and 224 nm under water company in the North Sea were no ships sunk.Second war patrol
The boat ran on 19 September 1939 at 12.30 clock ran out of Wilhelmshaven and 29 September 1939 at 23.00 clock back there a. Permanent on these eleven days and 980.7 nm and 223.1 nm over long under water company before Norway were three ships with 5,133 GRT sunk.- 23rd September 1939: the sinking of the Finnish steamer Martti Ragnar with 2262 GT. The steamer was sunk by three explosive cartridges. He had cellulose , sulfur and pulp loaded and was on his way out of Kemi to Ellesmere Port . There were no losses, 24 survivors.
- 23rd September 1939: the sinking of the steamer Finnish Walma with 1361 GT. The steamer was sunk by explosive cartridges. He had loaded 1622.4 t cellulose and was on his way from Vyborg to Ellesmere. There were no losses, 18 survivors.
- 24th September 1939: the sinking of the Swedish steamer Gertrud Bratt with 1510 GT. The steamer was a G7a torpedo sunk. He had paper , paper pulp , yard goods loaded and cellulose and was on his way from Norrköping to Bristol .Unknown losses.
Third war patrol
The boat ran on 16 March, 1940 from 8.00 clock keel and ran out on 29 March 1940 in Wilhelmshaven one. In these fourteen-day things before Norway no ships were sunk.Fourth war patrol
The boat ran on 4 April 1940 at 12.00 clock from Wilhelmshaven to companies Weserübung expired on 14 April 1940 there a.Permanent on these ten days and about 900 nm long and firm against Norway Stavanger , a U-boat was sunk.- 10th April 1940 sinking of the British submarine HMS Thistle 1,090 ts. The U-boat was sunk by a torpedo. It was a total loss with 40 dead.