German submarine U-221

History
Nazi Germany
Name	U-221
Ordered	15 August 1940
Builder	Germaniawerft, Kiel
Yard number	651
Laid down	16 June 1941
Launched	14 March 1942
Commissioned	9 May 1942
Fate	Sunk by aircraft, 27 September 1943
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;
Height	9.60 m (31 ft 6 in)
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 or 26 TMA mines; 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; 9 May – 31 August 1942; 7th U-boat Flotilla; 1 September 1942 – 27 September 1943;
Identification codes:	M 45 566
Commanders:	Kptlt. Hans-Hartwig Trojer; 9 May 1942 – 27 September 1943;
Operations:	5 patrols:; 1st patrol:; 3 September – 22 October 1942; 2nd patrol:; 23 November – 23 December 1942; 3rd patrol:; 27 February – 28 March 1943; 4th patrol:; 3 May – 21 July 1943; 5th patrol:; 20 – 27 September 1943;
Victories:	11 merchant ships sunk ; (69,589 GRT); 10 warships sunk ; (759 tons); 1 merchant ship damaged ; (7,197 GRT);

German submarine U-221 was a Type VIIC U-boat of Nazi Germany's Kriegsmarine during World War II.

Ordered on 15 August 1940 from the Germaniawerft shipyard in Kiel, she was laid down on 16 June 1941 as yard number 651, launched on 14 March 1942 and commissioned on 9 May 1942 under the command of Kapitänleutnant Hans-Hartwig Trojer.

A member of twelve wolfpacks, she sank a total of Twenty one ships for a total of 69,589 gross register tons (GRT) and 759 tons in five patrols. In addition, she damaged one ship with a total tonnage of 7,197 GRT.

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