Zwaardvisch-class submarine
| HNLMS Zwaardvis | |
| Class overview | |
|---|---|
| Name | Zwaardvisch class | 
| Builders | Vickers-Armstrongs, Barrow-in-Furness | 
| Operators | Royal Netherlands Navy | 
| Succeeded by | Dolfijn class | 
| In service | 1943–1965 | 
| General characteristics | |
| Type | Submarine | 
| Displacement | 
 | 
| Length | 87.3 m (286 ft 5 in) | 
| Beam | 8.1 m (26 ft 7 in) | 
| Draught | 4.7 m (15 ft 5 in) | 
| Propulsion | 
 | 
| Speed | 
 | 
| Test depth | 60 m (200 ft) | 
| Armament | 
 | 
The Zwaardvisch class was a class of initially two, and later four, submarines that served between 1943 and 1965 in the Royal Netherlands Navy (RNLN). They were former T-class submarines. Two were acquired and transferred to the RNLN during the Second World War, while another two were loaned from the Royal Navy post-war for a period of five years.