Английская Википедия:German submarine U-997

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Шаблон:Short description

Шаблон:Infobox ship imageШаблон:Infobox ship careerШаблон:Infobox ship characteristicsШаблон:Infobox service record

German submarine U-997 was a Type VIIC/41 U-boat built for Nazi Germany's Kriegsmarine for service during World War II. She was laid down on 7 December 1942 by Blohm & Voss, Hamburg as yard number 197, launched on 18 August 1943 and commissioned on 23 September 1943 under Oberleutnant zur See Hans Lehmann.

Design

Like all Type VIIC/41 U-boats, U-977 had a displacement of Шаблон:Convert when at the surface and Шаблон:Convert while submerged. She had a total length of Шаблон:Convert, a pressure hull length of Шаблон:Convert, a beam of Шаблон:Convert, and a draught of Шаблон:Convert.Шаблон:Sfn The submarine was powered by two Germaniawerft F46 supercharged six-cylinder four-stroke diesel engines producing a total of Шаблон:Convert and two BBC GG UB 720/8 double-acting electric motors producing a total of Шаблон:Convert for use while submerged. The boat was capable of operating at a depth of Шаблон:Convert.Шаблон:Sfn

The submarine had a maximum surface speed of Шаблон:Convert and a submerged speed of Шаблон:Convert. When submerged, the boat could operate for Шаблон:Convert at Шаблон:Convert; when surfaced, she could travel Шаблон:Convert at Шаблон:Convert.Шаблон:Sfn U-997 was fitted with three anti-aircraft guns, five Шаблон:Convert torpedo tubes (four on the bow and one on the stern) and fourteen torpedoes. Its complement was between forty-four and sixty.Шаблон:Sfn

Sensors

Passive sonar

U-997 was one of only ten Type VIIC's to be fitted with a Balkongerät (literally 'Balcony apparatus or equipment'). The Balkongerät was used on U-boats (Шаблон:GS, Шаблон:GS, Шаблон:GS, Шаблон:GS, Шаблон:GS, Шаблон:GS, Шаблон:GS, Шаблон:GS and Шаблон:GS).[1] The Balkongerät was standard on the Type XXI and the Type XXIII. Nonetheless, it was also fitted to several Type IXs and one Type X. The Balkongerät was an improved version of Gruppenhorchgerät (GHG) (group listening device). The GHG had 24 hydrophones, the Balkongerät had 48 hydrophones and improved electronics, which enabled more accurate readings to be taken.[2]

Service history

The boat's service career began on 23 September 1943 with the 5th Training Flotilla, followed by 12 months active service, with a succession of three flotillas, namely 9th Flotilla on 1 May 1944, then 13th Flotilla on 1 June 1944, and finally with 14th Flotilla on 1 March 1945.

Wolfpacks

U-997 took part in seven wolfpacks, namely:

  • Grimm (31 May – 6 June 1944)
  • Trutz (17 August – 1 September 1944)
  • Grimm (13 September – 1 October 1944)
  • Regenschirm (14 – 16 October 1944)
  • Panther (16 October – 8 November 1944)
  • Stier (21 November – 25 December 1944)
  • Hagen (15 – 21 March 1945)

Fate

U-997 was surrendered on 9 May 1945 and was sunk by aircraft on 13 December 1945 in the North Atlantic, in position Шаблон:Coord, as part of Operation Deadlight.

Summary of raiding history

Date Ship Name Nationality Tonnage[Note 1] Fate[3]
7 December 1944 BO-229 Шаблон:Navy 105 Sunk
22 April 1945 Idefjord Шаблон:Flag 4,287 Damaged
22 April 1945 Onega Шаблон:Flag 1,603 Sunk

See also

References

Notes

Шаблон:Reflist

Citations

Шаблон:Reflist

Bibliography

Шаблон:Refbegin

Шаблон:Refend

Шаблон:German Type VII submarines Шаблон:December 1945 shipwrecks

Шаблон:Use dmy dates

Партнерские ресурсы
Криптовалюты
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Разное

  1. ↑ Base on war-time photographs.
  2. ↑ Шаблон:Cite web
  3. ↑ Шаблон:Cite web


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