German submarine U-1230

History
Nazi Germany
Name	U-1230
Ordered	14 October 1941
Builder	Deutsche Werft, Hamburg
Yard number	393
Laid down	15 March 1943
Launched	8 November 1943
Commissioned	26 January 1944
Fate	Surrendered on 5 May 1945; Sunk on 17 December 1945 during Operation Deadlight;
General characteristics
Class and type	Type IXC/40 submarine
Displacement	1,144 t (1,126 long tons) surfaced; 1,257 t (1,237 long tons) submerged;
Length	76.76 m (251 ft 10 in) o/a; 58.75 m (192 ft 9 in) pressure hull;
Beam	6.86 m (22 ft 6 in) o/a; 4.44 m (14 ft 7 in) pressure hull;
Height	9.60 m (31 ft 6 in)
Draught	4.67 m (15 ft 4 in)
Installed power	4,400 PS (3,200 kW; 4,300 bhp) (diesels); 1,000 PS (740 kW; 990 shp) (electric);
Propulsion	2 shafts; 2 × diesel engines; 2 × electric motors;
Speed	18.3 knots (33.9 km/h; 21.1 mph) surfaced; 7.3 knots (13.5 km/h; 8.4 mph) submerged;
Range	13,850 nmi (25,650 km; 15,940 mi) at 10 knots (19 km/h; 12 mph) surfaced; 63 nmi (117 km; 72 mi) at 4 knots (7.4 km/h; 4.6 mph) submerged;
Test depth	230 m (750 ft)
Complement	4 officers, 44 enlisted
Armament	6 × torpedo tubes (4 bow, 2 stern); 22 × 53.3 cm (21 in) torpedoes; 1 × 10.5 cm (4.1 in) SK C/32 deck gun (180 rounds); 1 × 3.7 cm (1.5 in) Flak M42 AA gun; 2 x twin 2 cm (0.79 in) C/30 AA guns;
Service record
Part of:	31st U-boat Flotilla; 26 January – 31 July 1944; 10th U-boat Flotilla; 1 August – 30 September 1944; 33rd U-boat Flotilla; 1 October 1944 – 5 May 1945;
Identification codes:	M 42 644
Commanders:	Kptlt. Hans Hilbig; 26 January 1944 – 5 May 1945;
Operations:	1 patrol:; a. 8 October 1944 – 13 February 1945; b. 20 – 23 February 1945;
Victories:	1 merchant ship sunk ; (5,458 GRT)

German submarine U-1230 was a Type IXC/40 U-boat of Nazi Germany's Kriegsmarine during World War II.

Laid down on 15 March 1943 at the Deutsche Werft in Hamburg, and commissioned on 26 January 1944 under the command of Kapitänleutnant Hans Hilbig, it only undertook one patrol, operating from Horten Naval Base, Norway, returning safely to Kristiansand, Norway in early 1945.

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