German submarine U-660

History
Nazi Germany
Name	U-660
Ordered	9 October 1939
Builder	Howaldtswerke, Hamburg
Yard number	809
Laid down	15 February 1941
Launched	17 November 1941
Commissioned	8 January 1942
Fate	Sunk on 12 November 1942 in the Mediterranean in position 36°07′N 01°00′W / 36.117°N 1.000°W, by depth charges from HMS Lotus and HMS Starwort.
General characteristics
Class & type	Type VIIC submarine
Displacement	769 tonnes (757 long tons) surfaced; 871 t (857 long tons) submerged;
Length	67.10 m (220 ft 2 in) o/a; 50.50 m (165 ft 8 in) pressure hull;
Beam	6.20 m (20 ft 4 in) o/a; 4.70 m (15 ft 5 in) pressure hull;
Draught	4.74 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	2 shafts; 2 × diesel engines; 2 × electric motors;
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	4 officers, 40–56 enlisted
Armament	5 × 53.3 cm (21 in) torpedo tubes (four bow, one stern); 14 × torpedoes; 1 × 8.8 cm (3.46 in) deck gun (220 rounds); 1 x 2 cm (0.79 in) C/30 AA gun;
Service record
Part of:	5th U-boat Flotilla; 8 January – 31 July 1942; 9th U-boat Flotilla; 1 August – 31 October 1942; 29th U-boat Flotilla; 1 – 12 November 1942;
Identification codes:	M 31 117
Commanders:	Oblt.z.S. / Kptlt. Götz Baur; 8 January – 12 November 1942;
Operations:	3 patrols:; 1st patrol:; 25 July - 6 September 1942; 2nd patrol:; 3 – 15 October 1942; 3rd patrol:; 24 October – 12 November 1942;
Victories:	2 merchant ships sunk ; (10,066 GRT); 2 merchant ships damaged ; (10,447 GRT);

German submarine U-660 was a Type VIIC U-boat built for Nazi Germany's Kriegsmarine for service during World War II. She was laid down on 15 February 1941 by Howaldtswerke, Hamburg as yard number 809, launched on 17 November 1941 and commissioned on 8 January 1942 under Oberleutnant zur See Götz Baur.

History

Nazi Germany
Name	U-660
Ordered	9 October 1939
Builder	Howaldtswerke, Hamburg
Yard number	809
Laid down	15 February 1941
Launched	17 November 1941
Commissioned	8 January 1942
Fate	Sunk on 12 November 1942 in the Mediterranean in position 36°07′N 01°00′W / 36.117°N 1.000°W / 36.117; -1.000, by depth charges from HMS Lotus and HMS Starwort.
General characteristics
Class & type	Type VIIC submarine
Displacement	769 tonnes (757 long tons) surfaced 871 t (857 long tons) submerged
Length	67.10 m (220 ft 2 in) o/a 50.50 m (165 ft 8 in) pressure hull
Beam	6.20 m (20 ft 4 in) o/a 4.70 m (15 ft 5 in) pressure hull
Draught	4.74 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	2 shafts 2 × diesel engines 2 × electric motors
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	4 officers, 40–56 enlisted
Armament	5 × 53.3 cm (21 in) torpedo tubes (four bow, one stern) 14 × torpedoes 1 × 8.8 cm (3.46 in) deck gun (220 rounds) 1 x 2 cm (0.79 in) C/30 AA gun
Service record
Part of:	5th U-boat Flotilla 8 January – 31 July 1942 9th U-boat Flotilla 1 August – 31 October 1942 29th U-boat Flotilla 1 – 12 November 1942
Identification codes:	M 31 117
Commanders:	Oblt.z.S. / Kptlt. Götz Baur 8 January – 12 November 1942
Operations:	3 patrols: 1st patrol: 25 July - 6 September 1942 2nd patrol: 3 – 15 October 1942 3rd patrol: 24 October – 12 November 1942
Victories:	2 merchant ships sunk (10,066 GRT) 2 merchant ships damaged (10,447 GRT)