Unterseeboot 703

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U-703
Type VIIC


Launch Date July 16, 1941
Commission Date October 16, 1941
Construction yard Stülcken Sohn, Hamburg
Patrols
Start Date End Date Assigned Unit
April 26, 1942 May 7, 1942 6th Flotilla
May 16, 1942 May 30, 1942 6th Flotilla
June 29, 1942 July 15, 1942 11th Flotilla
August 8, 1942 September 11, 1942 11th Flotilla
September 14, 1942 September 26, 1942 11th Flotilla
January 1, 1943 February 14, 1943 11th Flotilla
March 7, 1943 April 5, 1943 11th Flotilla
July 19, 1943 August 3, 1943 13th Flotilla
August 17, 1943 September 9, 1943 13th Flotilla
February 29, 1944 March 8, 1944 13th Flotilla
April 9, 1944 April 29, 1944 13th Flotilla
August 21, 1944 September 10, 1944 13th Flotilla
September 14, 1944 September, 1944 13th Flotilla
Commanders
October, 1941 July, 1943 Kptlt. Heinz Bielfeld
July, 1943 September, 1944 Kptlt. Joachim Brümmer
Successes
Type of Ship Sunk Number of Ships Sunk Gross Registered Tonnage
Commercial Vessels 5 29,532
Military Vessels 1 500

Unterseeboot 703, or more commonly U-703 was a German submarine deployed during the Second World War against allied shipping in the Arctic Ocean. She was a successful boat, which had a far longer service life than most other U-boats, primarily due to the restricted zone of operations in which she fought. Her main mission during the war was to target the Arctic Convoys which carried supplies to the Soviet Union from Britain. At this she was quite successful in her three years of raiding until her presumed demise in 1944.

A German Type VII submarine, U-703 was built at Hamburg in Northern Germany on the North Sea. She was completed in the autumn of 1941, and given to the experienced Kptlt. Heinz Bielfeld to command. He took her on her working-up period in which the boat was tested and the crew trained in the Baltic Sea and around the German held coastlines, before being dispatched to Narvik in Norway for her first war patrol in April 1942.

[edit] War Patrols

Enjoying the improving Arctic weather, U-703 had an unsuccessful patrol in terms of victims, but the boat began to work better as a team, and the second patrol in May reaped dividends, with the sinking of the 6,000 ton American freighter SS Syros. This ship sank with eleven lives after a torpedo touched off her ammunition [1]. The same patrol scored greater success during the disastrous end to Convoy PQ-17 on the 5 May, when she managed to sink two lone cargo ships, one of them damaged by long range German bombers before hand. Returning to port at Narvik, U-703 was cheered by her victory, but she struggled to make further impressions during the year, as her two further patrols yielded only one victim, the British destroyer HMS Somali, which was fatally crippled by a torpedo near Convoy PQ-18 in September.

Following her lay-over in the winter as her home ports of Narvik, Trondheim, Hammerfest, Harstad and Bergen were all frozen, U-703 returned to the offensive, again attacking allied convoys in the Arctic Sea. Her first two patrols, in January and April were short and barren, but on the next two in July and August 1943 under her new commander Joachim Brünner, she cruised in Soviet waters in the Barents Sea and further east, catching a small Soviet armed trawler on the first [2], and larger Soviet merchant ship on the second in August, sinking the SS Sergj Kirov near Istvestij Island [3]. These patrols had shown the vulnerability to older U-boats to newer allied countermeasures and protection, forcing the submarines to divert themselves into backwaters of the Second Battle of the Atlantic in order to gain any victories.

The U-703 continued operating in the spring of 1944, but she was obviously less efficient and was given duties deploying weather balloons in the Arctic Sea to test weather conditions for reports to other shipping,. This was in part a result of terrible damage she received off Narvik during her first patrol of the season, when allied aircraft strafed her, killing three crew and wounding three more. Just a few days before she had claimed her only victim of the year, the SS Empire Tourist, which was sunk whilst part of Convoy RA-57.

Relegated to her new duties, U-703 suddenly disappeared around the 25 September 1944. She had left Narvik on her thirteenth war patrol on the 14 September, in order to deploy a weather balloon in the Arctic. At the time a heavy gale was running, and it has been assumed that U-703 foundered due to heavy seas in the course of this difficult and highly technical operation. No trace of the boat and her 54 crew has ever been found since.

[edit] Raiding career

Date Ship Nationality Tonnage Fate
2 May 1942 SS Syros American 6,191 Sunk
5 July 1942 SS Empire Byron British 6,645 Sunk
5 July 1942 SS River Alton British 5,479 Sunk
20 September 1942 HMS Somali British 1,870 Damaged
30 July 1943 "T-911 {Pennant Nr 65} (Formerly RT-76} Ref [1] Soviet naval trawler 500 Sunk
1 October 1943 SS Sergej Kirov Soviet 4,146 Sunk
3 April 1944 SS Empire Tourist British 7,062 Sunk

[edit] References

  1. ^ http://uboat.net/allies/merchants/1708.html
  2. ^ Which has never been successfully named by historians.
  3. ^ http://uboat.net/allies/merchants/3093.html

See Also: List of U-boats