German trawler V 311 Osdorf
| History | |
|---|---|
| Name | 
  | 
| Owner | 
  | 
| Port of registry | 
  | 
| Builder | H. C. Stülcken Sohn | 
| Yard number | 523 | 
| Launched | 1 September 1921 | 
| Completed | 11 November 1921 | 
| Commissioned | 20 April 1941 | 
| Decommissioned | May 1945 | 
| Out of service | 10 January 1956 | 
| Identification | |
| Fate | Sank after collision | 
| General characteristics | |
| Type | 
  | 
| Tonnage | |
| Length | 41.95 m (137 ft 8 in) | 
| Beam | 7.37 m (24 ft 2 in) | 
| Draught | 2.87 m (9 ft 5 in) | 
| Depth | 3.98 m (13 ft 1 in) | 
| Installed power | 
  | 
| Propulsion | Single screw propeller | 
| Speed | 10 knots (19 km/h) (1921–51) | 
Osdorf was a German fishing trawler that was built in 1921 as Rendsburg. Renamed in 1939, she was requisitioned by the Kriegsmarine in the Second World War for use as a Vorpostenboot, serving as V 311 Osdorf. Restored to her ownes post-war, she was sold to Norway in 1951 and converted to a cargo ship, renamed Vestland. She was renamed Sirabuen in 1952, serving until 1956 when she was lost in a collision.