German submarine U-23 (1936)

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For other ships of the same name, see German submarine U-23.
Career (Nazi Germany)
Name: U-23
Ordered: 2 February 1935
Builder: Germaniawerft, Kiel
Yard number: 553
Laid down: 11 April 1936
Launched: 28 August 1936
Commissioned: 24 September 1936
Fate: Scuttled 10 September 1944, off the coast of Turkey in the Black Sea
General characteristics
Type: IIB
Displacement: Surfaced 279 Tons
Submerged 329 Tons
Length: 42.7 m (140 ft)
Beam: 4.1 m (13 ft)
Speed: 13 knots (24 km/h; 15 mph) surfaced
7 knots (13 km/h; 8.1 mph) submerged
Endurance: Surfaced 1,800 Miles at 12 Knots
Submerged 43 Miles at 4 Knots
Crew: 25
Armament: Three fore torpedo tubes with 6 × 21 inch Torpedos and 1 × 20mm AA gun on fore-deck
Service record
Part of: Kriegsmarine:
1st U-boat Flotilla
21st U-boat Flotilla
30th U-boat Flotilla
Identification codes: M 01 984
Commanders: Eberhard Godt
Hans-Günther Looff
Otto Kretschmer
Heinz Beduhn
Heinrich Driver
Kurt Reichenbach-Klinke
Ernst-Ulrich Brüller
Ulrich Gräf
Rolf-Birger Wahlen
Rudolf Arendt
Operations: 16
Victories: Seven ships sunk for a total of 11,179 gross register tons (GRT)
Two warships sunk for a total of 1,410 tons
One auxiliary warship of 1,005 GRT damaged
One warship of 56 tons damaged
Three ships declared a total loss for a total of 18,199 GRT

German submarine U-23 was a Type IIB U-boat of Nazi Germany's Kriegsmarine, built in Germaniawerft, Kiel. She was laid down on 11 April 1936 and commissioned on 24 September.

Career[edit]

At 4:45 am on 4 October 1939, U-23 scored one of the Kriegsmarine's early successes of the war when she torpedoed and sank with gunfire, the merchant ship Glen Farg about 60 nmi (110 km) south-southwest of Sumburgh Head (southern Shetland). One person died, while 16 survivors were picked up by HMS Firedrake and landed at Kirkwall the next day.

In 16 patrols U-23 sank seven ships for a total of 11,179 gross register tons (GRT) including two warships, as well as damaging a warship and an auxiliary warship.

Over the course of her service with the Kriegsmarine, U-23 had ten commanding officers, the most famous of whom was Kapitänleutnant Otto Kretschmer, who went on to become the top scoring U-boat ace. After service in the Atlantic with the 1st U-boat Flotilla, U-23 served as a training boat with the 21st U-boat Flotilla from July 1940 until September 1942. U-23 was then refitted and transported overland to the Black Sea port of Konstanza, Romania, with the 30th U-boat Flotilla until September 1944.

Fate[edit]

U-23 was scuttled by her crew on 10 September 1944, off the coast of Turkey in the Black Sea at position 41°11′N 30°00′E / 41.183°N 30.000°E / 41.183; 30.000Coordinates: 41°11′N 30°00′E / 41.183°N 30.000°E / 41.183; 30.000 to prevent her capture by the advancing Soviets.

On 3 February 2008, The Daily Telegraph newspaper reported that U-23 had been discovered by Selçuk Kolay, a Turkish marine engineer, in 160 ft (49 m) of water, three miles from the town of Agva.[1][2]

Summary of Raiding Career[edit]

Date Name Nationality Tonnage
(GRT)
Fate[3]
4 October 1939 Glen Farg  United Kingdom 876 Sunk
8 December 1939 Scotia  Denmark 2,400 Sunk
11 January 1940 Fredville  Norway 1,150 Sunk
12 January 1940 Danmark  Denmark 10,517 Total loss
24 January 1940 Varild  Norway 1,085 Sunk
18 February 1940 HMS Daring  Royal Navy 1,375 Sunk
19 February 1940 SS Tiberton  United Kingdom 5,225 Sunk
22 February 1940 Loch Maddy  United Kingdom 4,996 Total loss
24 August 1943 Shkval  Soviet Union 35 Sunk
15 October 1943 TSC-486 Sovetskja Rossiya  Soviet Union 1,005 Damaged
23 October 1943 Tanais  Soviet Union 372 Sunk
5 April 1944 SKA-099  Soviet Union 56 Damaged
29 May 1944 Smelyj  Soviet Union 71 Sunk
1 September 1944 Oituz  Romania 2,686 Sunk

References[edit]

Notes
  1. ^ Jasper Copping (3 February 2008). "Adolf Hitler's 'lost fleet' found in Black Sea". The Daily Telegraph. Retrieved 15 July 2010. 
  2. ^ Andy McSmith (11 February 2008). "Hitler's 'lost fleet' of U-boats found in Black Sea". The Independent. Retrieved 15 July 2010. 
  3. ^ http://uboat.net/boats/successes/u23/html
Bibliography

See also[edit]