U4

U 4 was a German U-boat from Type II A , in the Second World War by the German navy was used.

U4
Typ :	II A
Feldpostnummer:	M-13 167
Shipyard:	German works Kiel
Works:	Second February 1935
Building number:	239
Laid down:	11th February 1935
Launched:	31st July 1935
Commissioned:	17. August 1935
Commanders:	17th August 1935 - 29September 1937 Oblt.zS Hannes Weingartner 30th September 1937 - 28October 1938 Oblt.zS Hans-Wilhelm of Dresky 29th October 1938 - 16thJanuary 1940 Oblt.zS Harro von Heyden clot-Feldt 17th January 1940 - 7th June 1940 Oblt.zS Hans-Peter Hinsch 8th June 1940 - 28th July 1940 Oblt.zS Heinz-Otto Schultze 29th July 1940 - 2nd February 1941 Oblt.zSHans-Jürgen Zetzsche Third February 1941 - 8thDecember 1941 Kptl. Hinrich-Oscar Bernbeck 9th December 1941 - 15 June 1942 Oblt.zS Wolfgang Leimkühler 16. Juni 1942 - 23. Januar 1943 Obl.zS Friedrich-Wilhelm Marienfeld 24. Januar 1943-31. May 1943 Joachim Obl.zS Düppe First Juni 1943 - 22 In August 1943 Oblt.zS Paul Sander 23rd August 1943 - May 1944 Oblt.zS Herbert Mumm May 1944 - 9th July 1944 Oblt.zS Hubert Rieger
Appearances:	4 Things
Sinkings:	3 ships (5,133 GRT) 1 warship
Whereabouts:	of the Red Army on 29 March 1945 in Gdynia captured and probably scrapped

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.

Fate

U 4 on 1 August 1944 in Gdynia was decommissioned and cannibalized. In this state, there were 29 March 1945 against the Soviet invaders, the abwrackten probably shortly after the war ended. The position was 54 ° 32 '0 "  N , 18 ° 33 '0 "  E