German submarine U-1228
 U-1228 surrenders at Portsmouth, New Hampshire (USA) on 17 May 1945
| |
| History | |
|---|---|
 Nazi Germany | |
| Name | U-1228 |
| Ordered | 14 October 1941 |
| Builder | Deutsche Werft AG, Hamburg |
| Yard number | 391 |
| Laid down | 16 February 1943 |
| Launched | 2 October 1943 |
| Commissioned | 22 December 1943 |
| Fate |
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| General characteristics | |
| Class and type | Type IXC/40 submarine |
| Displacement | |
| Length |
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| Beam |
|
| Height | 9.60 m (31 ft 6 in) |
| Draught | 4.67 m (15 ft 4 in) |
| Installed power |
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| Propulsion |
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| Speed |
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| Range |
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| Test depth | 230 m (750 ft) |
| Complement | 4 officers, 44 enlisted |
| Armament |
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| Service record | |
| Part of: |
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| Identification codes: | M 55 286 |
| Commanders: |
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| Operations: |
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| Victories: |
1 warship sunk (900 tons) |
German submarine U-1228 was a
.Design
supercharged four-stroke, nine-cylinder diesel engines producing a total of 4,400 metric horsepower (3,240 kW; 4,340 shp) for use while surfaced, two Siemens-Schuckert 2 GU 345/34 double-acting electric motors producing a total of 1,000 shaft horsepower (1,010 PS; 750 kW) for use while submerged. She had two shafts and two 1.92 m (6 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 18.3 knots (33.9 km/h; 21.1 mph) and a maximum submerged speed of 7.3 knots (13.5 km/h; 8.4 mph).2 cm (0.79 in) C/30 anti-aircraft guns. The boat had a complement of forty-eight.[2]
Service history
U-1228 was ordered on 14 October 1941 from
yard number 391. Her keel was laid down on 16 February 1943 and the U-boat was launched on 2 October. About three months later she was commissioned into service under the command of Oberleutnant zur See Friedrich-Wilhelm Marienfeld (Crew X/38) in the 31st U-boat Flotilla
on 22 December 1943.
After work-up for deployment, U-1228 transferred to the 2nd U-boat Flotilla and left Kiel for the West Atlantic on 5 September 1944 for her first and only patrol. Stopping briefly in Bergen, Norway, for replenishment, she experienced engine troubles in the Norwegian Sea and had to return to port. She set off again on 12 October from Bergen and operated south of Nova Scotia sinking one warship, HMCS Shawinigan.
She returned to Bergen on 28 December 1944 and continued her journey to
Wesermünde where she spent the next two months in the yard. U-1228 set out again on 1 April 1945 for operations in the West Atlantic. After the surrender of Germany, the U-boat made for the closest Allied port and surrendered to US forces in Portsmouth, New Hampshire
on 17 May 1945.
In August 1945 U-1228 was awarded to the United States and after being tested, she was sunk by USS Sirago on 5 February 1946 in position 42°32′N 69°37′W / 42.533°N 69.617°W.[1]
Summary of raiding history
| Date | Ship Name | Nationality | Tonnage[Note 1] | Fate[3] |
|---|---|---|---|---|
| 25 November 1944 | HMCS Shawinigan |  Royal Canadian Navy
|
900 | Sunk |
References
Notes
- gross register tons. Military vessels are listed by tons displacement.
Citations
- ^ a b Busch & Röll 1999, p. 397.
- ^ a b c d Gröner 1991, p. 68.
- ^ Helgason, Guðmundur. "Ships hit by U-1228". German U-boats of WWII - uboat.net. Retrieved 17 February 2014.
Bibliography
- Busch, Rainer; Röll, Hans-Joachim (1999). German U-boat commanders of World War II: a biographical dictionary. Translated by Brooks, Geoffrey. London, Annapolis, Md: Greenhill Books, Naval Institute Press. ISBN 1-55750-186-6.
- Busch, Rainer; Röll, Hans-Joachim (1999). Deutsche U-Boot-Verluste von September 1939 bis Mai 1945 [German U-boat losses from September 1939 to May 1945]. Der U-Boot-Krieg (in German). Vol. IV. Hamburg, Berlin, Bonn: Mittler. ISBN 3-8132-0514-2.
- Gröner, Erich; Jung, Dieter; Maass, Martin (1991). German Warships 1815–1945, U-boats and Mine Warfare Vessels. Vol. 2. Translated by Thomas, Keith; Magowan, Rachel. London: Conway Maritime Press. ISBN 0-85177-593-4.
