German submarine U-23 (1936)
|Career (Nazi Germany)|
|Ordered:||2 February 1935|
|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|
|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
|Armament:||Three fore torpedo tubes with 6 × 21 inch Torpedos and 1 × 20mm AA gun on fore-deck|
1st U-boat Flotilla
21st U-boat Flotilla
30th U-boat Flotilla
|Identification codes:||M 01 984|
|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
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.
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.
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.
Summary of Raiding Career
|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|
- Jasper Copping (3 February 2008). "Adolf Hitler's 'lost fleet' found in Black Sea". The Daily Telegraph. Retrieved 15 July 2010.
- Andy McSmith (11 February 2008). "Hitler's 'lost fleet' of U-boats found in Black Sea". The Independent. Retrieved 15 July 2010.
- U-boat.net webpage for U-23
- ubootwaffe.net webpage about U-23[dead link]
- u-boot-archiv.de webpage for U-23
- "U-23". Retrieved 2008-02-05.