German submarine U-606

History
Nazi Germany
Name:	U-606
Ordered:	22 May 1940
Builder:	Blohm & Voss, Hamburg
Yard number:	582
Laid down:	12 March 1941
Launched:	27 November 1941
Commissioned:	22 January 1942
Fate:	Sunk 22 February 1943 in the North Atlantic in position , by depth charges from USCGC Campbell and Polish destroyer Burza.
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
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) various AA guns
Service record
Part of:	5th U-boat Flotilla 22 January – 31 August 1942 - Training 11th U-boat Flotilla 1 September – 31 October 1942 9th U-boat Flotilla 1 November 1942 – 22 February 1943
Commanders:	Oblt.z.S. Hans Klatt 22 January 1942 – 1 October 1942 Kptlt. Dietrich von der Esch 14 September 1942 – 26 September 1942 Oblt.z.S. Hans-Heinrich Döhler 2 October 1942 – 22 February 1943
Operations:	1st patrol: 14–26 September 1942 2nd patrol: 17 October – 5 December 1942 3rd patrol: 4 January – 22 February 1943
Victories:	3 merchant ships sunk (20,527 GRT) 2 merchant ships damaged (21,925 GRT)

German submarine U-606 was a Type VIIC U-boat built for Nazi Germany's Kriegsmarine for service during World War II. She was laid down on 12 March 1941 by Blohm & Voss, Hamburg as yard number 582, launched on 27 November 1941 and commissioned on 22 January 1942 under Oblt.z.S. Hans Klatt.

Design

German Type VIIC submarines were preceded by the shorter Type VIIB submarines. U-606 had a displacement of 769 tonnes (757 long tons) when at the surface and 871 tonnes (857 long tons) while submerged. She had a total length of 67.10 m (220 ft 2 in), a pressure hull length of 50.50 m (165 ft 8 in), a beam of 6.20 m (20 ft 4 in), a height of 9.60 m (31 ft 6 in), and a draught of 4.74 m (15 ft 7 in). The submarine was powered by two Germaniawerft F46 four-stroke, six-cylinder supercharged diesel engines producing a total of 2,800 to 3,200 metric horsepower (2,060 to 2,350 kW; 2,760 to 3,160 shp) for use while surfaced, two Brown, Boveri & Cie GG UB 720/8 double-acting electric motors producing a total of 750 metric horsepower (550 kW; 740 shp) for use while submerged. She had two shafts and two 1.23 m (4 ft) propellers. The boat was capable of operating at depths of up to 230 metres (750 ft).

The submarine had a maximum surface speed of 17.7 knots (32.8 km/h; 20.4 mph) and a maximum submerged speed of 7.6 knots (14.1 km/h; 8.7 mph). When submerged, the boat could operate for 80 nautical miles (150 km; 92 mi) at 4 knots (7.4 km/h; 4.6 mph); when surfaced, she could travel 8,500 nautical miles (15,700 km; 9,800 mi) at 10 knots (19 km/h; 12 mph). U-606 was fitted with five 53.3 cm (21 in) torpedo tubes (four fitted at the bow and one at the stern), fourteen torpedoes, one 8.8 cm (3.46 in) SK C/35 naval gun, 220 rounds, and an anti-aircraft gun. The boat had a complement of between forty-four and sixty.

Service history

The boat's career began with training at 5th U-boat Flotilla on 22 January 1942, followed by active service on 1 September 1942 as part of the 11th Flotilla. After just two months, on 31 October 1942, she transferred to 9th Flotilla.

In three patrols she sank three merchant ships, for a total of 20,527 gross register tons (GRT), plus 2 merchant ships damaged for a total of 21,925 gross register tons (GRT).

Convoy ON 166

Along with U-92, U-186, U-225, U-332, U-529, U-600, U-604, U-623, U-628, U-653 and U-753 she attacked Convoy ON 166 and was very successful sinking the British Empire Redshank and US ship Chattanooga City and damaging US ship Expositor (finished by U-303) on 22 February, before being damaged by depth charges launched from the destroyer ORP Burza.

Wolfpacks

U-606 took part in five wolfpacks, namely

• Puma (26–29 October 1942)
• Natter (30 October – 8 November 1942)
• Kreuzotter (8–24 November 1942)
• Falke (8–19 January 1943)
• Haudegen (19 January – 15 February 1943)

Fate

U-606 was sunk on 22/23 February 1943 in the North Atlantic in position . She was damaged and forced to submerge by depth charges from Polish destroyer Burza, then she was found by USCGC Campbell and attacked with depth charges and gunfire. Older publications claimed, that the Campbell also rammed U-606, but apparently some U-Boot had just collided with the Campbell, and it is not clear if it was U-606. There were 36 dead and 12 survivors (5 on the Campbell and 7 on the Burza). U-606 finally sunk on 23 February near dawn.

Summary of raiding history

Date	Name	Nationality	Tonnage (GRT)	Fate|-	28 October 1942	Kosmos II	Norway	16,966	Damaged
28 October 1942	Gurney E. Newlin	United States	8,225	Sunk
22 February 1943	Chattanooga City	United States	5,687	Sunk
22 February 1943	Empire Redshank	United Kingdom	6,615	Sunk
22 February 1943	Expositor	United States	4,959	Damaged