| German submarine U-633 | |
|---|---|
| Career (Nazi Germany) |  |
| Name: | U-633 |
| Ordered: | 15 August 1940 |
| Builder: | Blohm & Voss, Hamburg |
| Yard number: | 609 |
| Laid down: | 22 September 1941 |
| Launched: | 10 June 1942 |
| Commissioned: | 30 July 1942 |
| Fate: | Sunk 10 March 1943 in the North Atlantic in position 58°51′N 19°55′W / 58.85°N 19.917°W, after being rammed by British freighter SS Scorton. |
| General characteristics [1] | |
| Class & type: | Type VIIC submarine |
| Displacement: |
769 tonnes (757 long tons) surfaced 871 t (857 long tons) submerged |
| Length: |
67.1 m (220 ft 2 in) o/a 50.5 m (165 ft 8 in) pressure hull |
| Beam: |
6.2 m (20 ft 4 in) o/a 4.7 m (15 ft 5 in) pressure hull |
| Draft: | 4.74 m (15 ft 7 in) |
| Propulsion: |
2 × supercharged Germaniawerft 6-cylinder 4-stroke F46 diesel engines, totalling 2,800–3,200 bhp (2,100–2,400 kW). Max rpm: 470-490 2 × BBC GG UB 720/8 electric motors, totalling 750 shp (560 kW) and max rpm: 296 |
| 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 kn (19 km/h; 12 mph) surfaced 80 nmi (150 km; 92 mi) at 4 kn (7.4 km/h; 4.6 mph) submerged |
| Test depth: |
230 m (750 ft) Crush depth: 250–295 m (820–968 ft) |
| Complement: | 44–52 officers & ratings |
| Armament: |
|
| Service record[2] | |
|---|---|
| Part of: |
5th U-boat Flotilla (30 July 1942 - 28 February 1943) - Training 9th U-boat Flotilla (1–10 March 1943) |
| Commanders: |
Oblt.z.S. Bernhard Müller (30 July 1942 - 10 March 1943) |
| Operations: |
1st patrol: 20 February - 10 March 1943 |
| Victories: | 1 merchant ship sunk (3,921 GRT) |
German submarine U-633 was a Type VIIC U-boat built for Nazi Germany's Kriegsmarine for service during World War II. She was laid down on 22 September 1941 by Blohm & Voss, Hamburg as yard number 609, launched on 10 June 1942 and commissioned on 30 July 1942 under Oberleutnant zur See Bernhard Müller.
Service History[]
The boat's career began with training at 5th U-boat Flotilla on 30 July 1942, followed by active service on 1 March 1943 as part of the 9th Flotilla for the remainder of her short service.
In one patrol she sank one merchant ship, for a total of 3,921 gross register tons (GRT).
Wolfpacks[]
U-633 took part in two wolfpacks, namely
- Neuland (4–6 March 1943)
- Ostmark (6–10 March 1943)
Fate[]
U-633 was sunk on 10 March 1943 in the North Atlantic in position 58°51′N 19°55′W / 58.85°N 19.917°W, after being rammed by British freighter SS Scorton. All 43 hands were lost.
Summary of Raiding Career[]
| Date | Name | Nationality | Tonnage (GRT) |
Fate[3] |
|---|---|---|---|---|
| 8 March 1943 | Guido |  United Kingdom
|
3,921 | Sunk |
See also[]
References[]
- ↑ Gröner 1985, pp. 72-74.
- ↑ Helgason, Guðmundur. "The Type VIIC boat U-633". http://www.uboat.net/boats/u633.html. Retrieved 2 September 2014.
- ↑ Helgason, Guðmundur. "Ships hit by U-633". http://uboat.net/boats/successes/u633.html. Retrieved 2 September 2014.
Bibliography[]
- Busch, Rainer; Röll, Hans-Joachim (1999) (in German). Deutsche U-Boot-Verluste von September 1939 bis Mai 1945. IV. Hamburg, Berlin, Bonn: Mittler. ISBN 3-8132-0514-2.
- Gröner, Erich (1985) (in German). U-Boote, Hilfskreuzer, Minenschiffe, Netzleger, Sperrbrecher. III. Koblenz: Bernard & Graefe. ISBN 3-7637-4802-4.
- Sharpe, Peter (1998). U-Boat Fact File. Great Britain: Midland Publishing. ISBN 1-85780-072-9.
External links[]
- Helgason, Guðmundur. "The Type VIIC boat U-633". http://www.uboat.net/boats/u633.html. Retrieved 29 December 2014.
The original article can be found at German submarine U-633 and the edit history here.