German submarine U-705

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Career (Nazi Germany)
Name: U-705
Ordered: 9 October 1939[1]
Builder: HC Stülcken & Sohn, Hamburg
Laid down: 11 October 1940[1]
Launched: 13 October 1941[1]
Commissioned: 30 December 1941[1]
Status: Sunk, September 1942[1]
General characteristics
Type: Type VIIC submarine
Displacement: 769 tonnes (757 long tons) surfaced
871 t (857 long tons) submerged
Length: 67.1 m (220 ft 2 in) o/a
50.5 m (165 ft 8 in) pressure hull
Beam: 6.2 m (20 ft 4 in) o/a
4.7 m (15 ft 5 in) pressure hull
Draft: 4.74 m (15 ft 7 in)
Propulsion: 2 × supercharged Germaniawerft 6-cylinder 4-stroke F46 diesel engines, totalling 2,800–3,200 bhp (2,100–2,400 kW). Max rpm: 470-490
2 × GL RP 137/c electric motors, totalling 750 shp (560 kW) and max rpm: 296
Speed: 17.7 knots (32.8 km/h; 20.4 mph) surfaced
7.6 knots (14.1 km/h; 8.7 mph) submerged
Range: 8,500 nmi (15,700 km; 9,800 mi) at 10 knots (19 km/h; 12 mph) surfaced
80 nmi (150 km; 92 mi) at 4 knots (7.4 km/h; 4.6 mph) submerged
Test depth: 230 m (750 ft)
Crush depth: 250–295 m (820–968 ft)
Complement: 44–52 officers & ratings
Armament:
Service record
Commanders Kptlt. Karl-Horst Horn
30 Dec 1941 - 3 Sep 1942
Operations 1st patrol[1]
1 August 1942 - 3 September 1942
Victories 1 merchant ship sunk (GRT 3,279)

German submarine U-705 was a Type VIIC U-boat of Nazi Germany's Kriegsmarine during World War II.

Commissioned on 30 December 1941, she served with the 5th U-Boat Flotilla until 31 July as a training boat, and as a front boat of 6th Flotilla under the command of Kapitänleutnant Karl-Horst Horn, until her sinking on 3 September 1942.

Patrol History[edit]

Departing on her first and only patrol on 1 August 1942, U-705 left Kiel to encircle the British isles and turn back after crossing more than half of the Atlantic. On 15 August while driving some 550 nautical miles (1,020 km) south-east of Iceland, she caught sight of a number of vessels; Convoy SC 95, and the merchant ship Balladier.

Diving after first being seen, she would stay submerged for nearly four hours before firing a torpedo at the starboard side of the Balladier. Listing to the starboard side, the armed guards were unable to return fire on U-705, with the ship sinking after seven minutes.[2]

On 24 August, the Norwegian corvette HNoMS Potentilla and the HMS Viscount of convoy ON 122 located U-705. Dropping five depth charges from the Viscount, along with a further ten from the Potentilla, the two were unable to cause damage to the boat. A further fifty-seven charges would be dropped at her and U-135, finally damaging her stern torpedo tube.

Fate[edit]

On 3 September, Armstrong Whitworth Whitleys of No. 77 Squadron RAF dropped depth charges at U-705, causing her to sink with all hands lost in the Bay of Biscay.[3]

Wolf Packs[edit]

U-705 took part in 1 wolfpack, namely.

  • Lohs (11 Aug 1942 - 26 Aug 1942)

Summary of Raiding Career[edit]

Date Ship Name Nationality Tonnage (GRT) Fate[4]
15 August 1942 Balladier  United States 3,279 Sunk

References[edit]

Notes
  1. ^ a b c d e f "The Type VIIC boat U-705 - German U-boats of WWII - uboat.net". uboat.net. Retrieved 2010-03-12. 
  2. ^ "Balladier article". Uboat.net. Retrieved 2010-03-16. 
  3. ^ Blair, Clay (1996). Hitler's U-Boat War: The Hunters 1939-1942. Random House. p. 662&663. ISBN 0-394-58839-8. 
  4. ^ "U-705 successes". UBoat.net. Retrieved 9 February 2014. 
Bibliography
  • Busch, Rainer; Röll, Hans-Joachim (1999). Deutsche U-Boot-Verluste von September 1939 bis Mai 1945. Der U-Boot-Krieg (in German) IV (Hamburg, Berlin, Bonn: Mittler). ISBN 3-8132-0514-2.