German submarine U-409

History
Nazi Germany
Name	U-409
Ordered	30 October 1939
Builder	Danziger Werft, Danzig
Yard number	110
Laid down	26 October 1940
Launched	23 September 1941
Commissioned	21 January 1942
Fate	Sunk on 12 July 1943 in the Mediterranean in position 37°12′N 04°00′E / 37.200°N 4.000°E / 37.200; 4.000, by depth charges from HMS Inconstant.
General characteristics
Class and 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 (4 bow, 1 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[1]
Part of:	5th U-boat Flotilla 21 January – 31 August 1942 9th U-boat Flotilla 1 September 1942 – 30 June 1943 29th U-boat Flotilla 1 – 12 July 1943
Identification codes:	M 24 443
Commanders:	Oblt.z.S. Hanns-Ferdinand Massmann 21 January 1942 – 12 July 1943
Operations:	6 patrols: 1st patrol: 18 August – 9 September 1942 2nd patrol: 13 October – 5 November 1942 3rd patrol: 7 December 1942 – 5 January 1943 4th patrol: 14 February – 12 April 1943 5th patrol: a. 18 – 21 May 1943 b. 26 May – 11 June 1943 6th patrol: 29 June – 12 July 1943
Victories:	4 merchant ships sunk (24,961 GRT) 1 warship sunk (10 tons) 1 merchant ship damaged (7,519 GRT)

German submarine U-409 was a Type VIIC U-boat of Nazi Germany's Kriegsmarine in World War II. She was laid down on 26 October 1940 by Danziger Werft, Danzig as yard number 110, launched on 23 September 1941 and commissioned on 21 January 1942 under Oberleutnant zur See Hanns-Ferdinand Massmann.