German submarine U-714

History
Nazi Germany
NameU-714
Ordered7 December 1940
BuilderHC Stülcken & Sohn, Hamburg
Yard number780
Laid down29 December 1941
Launched13 November 1942
Commissioned10 February 1943
FateSunk on 14 March 1945 near Eyemouth, Firth of Forth. 50 dead.
General characteristics
Class and typeType VIIC submarine
Displacement
Length
Beam
  • 6.20 m (20 ft 4 in) o/a
  • 4.70 m (15 ft 5 in) pressure hull
Height9.60 m (31 ft 6 in)
Draught4.74 m (15 ft 7 in)
Installed power
  • 2,800–3,200 PS (2,100–2,400 kW; 2,800–3,200 bhp) (diesels)
  • 750 PS (550 kW; 740 shp) (electric)
Propulsion
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)
Complement4 officers, 40–56 enlisted
Armament
Service record
Part of:
Identification codes: M 50 495
Commanders:
  • Oblt.z.S. / Kptlt. Hans-Joachim Schwebcke
  • 10 February 1943 – 14 March 1945
Operations:
  • 6 patrols:
  • 1st patrol:
  • 13 October – 2 December 1943
  • 2nd patrol:
  • a. 11 – 15 January 1944
  • b. 20 January – 25 February 1944
  • 3rd patrol:
  • a. 6 – 15 June 1944
  • b. 21 – 25 August 1944
  • 4th patrol:
  • 27 August – 20 October 1944
  • 5th patrol:
  • a. 23 – 28 October 1944
  • b. 17 – 22 February 1945
  • 6th patrol:
  • 3 – 14 March 1945
Victories:
  • 1 merchant ship sunk
    (1,226 GRT)
  • 1 auxiliary warship sunk
    (425 GRT)

German submarine U-714 was a Type VIIC U-boat Nazi Germany's Kriegsmarine built for service during World War II. She was laid down on 29 December 1941 by H. C. Stülcken Sohn at Hamburg and commissioned on 10 February 1943. She was commanded throughout her career by Oberleutnant zur See Hans-Joachim Schwebcke.

Design

German Type VIIC submarines were preceded by the shorter Type VIIB submarines. U-714 had a displacement of 769 tonnes (757 long tons) when at the surface and 871 tonnes (857 long tons) while submerged.[1] She had a total length of 67.10 m (220 ft 2 in), a pressure hull length of 50.50 m (165 ft 8 in), a beam of 6.20 m (20 ft 4 in), a height of 9.60 m (31 ft 6 in), and a draught of 4.74 m (15 ft 7 in). The submarine was powered by two Germaniawerft F46 four-stroke, six-cylinder supercharged diesel engines producing a total of 2,800 to 3,200 metric horsepower (2,060 to 2,350 kW; 2,760 to 3,160 shp) for use while surfaced, two Garbe, Lahmeyer & Co. RP 137/c double-acting electric motors producing a total of 750 metric horsepower (550 kW; 740 shp) for use while submerged. She had two shafts and two 1.23 m (4 ft) propellers. The boat was capable of operating at depths of up to 230 metres (750 ft).[1]

The submarine had a maximum surface speed of 17.7 knots (32.8 km/h; 20.4 mph) and a maximum submerged speed of 7.6 knots (14.1 km/h; 8.7 mph).[1] When submerged, the boat could operate for 80 nautical miles (150 km; 92 mi) at 4 knots (7.4 km/h; 4.6 mph); when surfaced, she could travel 8,500 nautical miles (15,700 km; 9,800 mi) at 10 knots (19 km/h; 12 mph). U-714 was fitted with five 53.3 cm (21 in) torpedo tubes (four fitted at the bow and one at the stern), fourteen torpedoes, one 8.8 cm (3.46 in) SK C/35 naval gun, 220 rounds, and two twin 2 cm (0.79 in) C/30 anti-aircraft guns. The boat had a complement of between forty-four and sixty.[1]

Fate

She was sunk on 14 March 1945 near Eyemouth in the Firth of Forth at position 55°57′N 01°57′W / 55.950°N 1.950°W / 55.950; -1.950 by depth charges from the South African frigate HMSAS Natal. HMS Wivern was granted a share of the credit for this kill as well. She had a complement of 50 crew, and when she sank, all of her crew died. She was designated as a protected place under the Protection of Military Remains Act 1986 in 2008.

Wolfpacks

U-714 took part in six wolfpacks, namely:

  • Körner (30 October – 2 November 1943)
  • Tirpitz 1 (2 – 8 November 1943)
  • Eisenhart 2 (9 – 15 November 1943)
  • Schill 3 (18 – 22 November 1943)
  • Weddigen (22 – 30 November 1943)
  • Igel 1 (3 – 17 February 1944)

Summary of raiding history

Date Ship Name Nationality Tonnage[Note 1] Fate[2]
10 March 1945 HNoMS Nordhav II  Royal Norwegian Navy 425 Sunk
14 March 1945 Magne  Sweden 1,226 Sunk

References

Notes

  1. ^ Merchant ship tonnages are in gross register tons. Military vessels are listed by tons displacement.

Citations

  1. ^ a b c d Gröner 1991, pp. 43–46.
  2. ^ Helgason, Guðmundur. "Ships hit by U-714". German U-boats of WWII - uboat.net. Retrieved 10 February 2014.

Bibliography