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German submarine U-475 was a Type VIIC U-boat of Nazi Germany's Kriegsmarine during World War II.
| History | |
|---|---|
 Nazi Germany | |
| Name | U-475 |
| Ordered | 10 April 1941 |
| Builder | Deutsche Werke, Kiel |
| Yard number | 306 |
| Laid down | 5 September 1942 |
| Launched | 28 May 1943 |
| Commissioned | 7 July 1943 |
| Fate | Scuttled on 3 May 1945. Broken up in 1947 |
| General characteristics | |
| Class and type | Type VIIC submarine |
| Displacement | |
| Length |
|
| Beam |
|
| Height | 9.60 m (31 ft 6 in) |
| Draught | 4.74 m (15 ft 7 in) |
| Installed power |
|
| Propulsion |
|
| Speed |
|
| Range | |
| Test depth |
|
| Complement | 4 officers, 40–56 enlisted |
| Armament |
|
| Service record[1] | |
| Part of: |
|
| Identification codes: | M 53 401 |
| Commanders: |
|
| Operations: |
|
| Victories: |
1 warship damaged (56 tons) |
She carried out four patrols. She damaged one warship.
She was scuttled on 3 May 1945 and broken up in 1947.
German Type VIIC submarines were preceded by the shorter Type VIIB submarines. U-475 had a displacement of 769 tonnes (757 long tons) when at the surface and 871 tonnes (857 long tons) while submerged.[2] 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 Siemens-Schuckert GU 343/38–8 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).[2]
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).[2] 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-475 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), one 3.7 cm (1.5 in) Flak M42 and two twin 2 cm (0.79 in) C/30 anti-aircraft guns. The boat had a complement of between forty-four and sixty.[2]
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FLAK weaponry
U-475 was mounted with two 2cm Flak C38 in a M 43U Zwilling mount with short folding shield on the upper Wintergarten.[3] The M 43U mount was used on a number of U-boats (U-190, U-249, U-250, U-278, U-337, U-853, U-1058, U-1109, U-1023, U-1105, U-1165 and U-1306).
2 cm Flak C38 in a M 43U Zwilling mount with short folding shield.
The submarine was laid down on 5 September 1942 in the Deutsche Werke, Kiel as yard number 306, launched on 28 May 1943 and commissioned on 7 July under the command of Kapitänleutnant Otto Stoeffler.
She served with the 5th U-boat Flotilla from 7 July 1943 for training and was transferred to the 8th flotilla from 1 August 1944 for operations. She was reassigned to the 4th flotilla on 16 February 1945.
First patrol
U-475's first patrol was preceded by a short journey from Kiel in Germany to Helsinki in Finland. The patrol itself, split into four parts, commenced with her departure from Helsinki on 11 July 1944. On the 28th she damaged the Soviet patrol craft MO-107 in Viborg Bay.
Second patrol
Her second foray was relatively uneventful – starting in Danzig (now Gdansk) on 14 October 1944. She returned to Danzig on 17 November.
Third patrol
The submarine steamed as far north as a point east of Stockholm before returning to Danzig (on 4 December 1944).
Fourth patrol
The boat's fourth sortie also started and finished in Danzig and at 54 days duration, was her longest.
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U-475 had moved from Danzig to Kiel in March 1945. She was scuttled on 3 May 1945 at Kiel-Wik. The wreck was broken up in 1947.
| Date | Ship Name | Nationality | Tonnage[Note 1] | Fate[4] |
|---|---|---|---|---|
| 28 July 1944 | MO-107 |  Soviet Navy |
56 | Damaged |
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