Black Swan-class sloop Black Swan class Royal Navy

| Name_ | Pennant | Builder | Laid_Down | Launched | Commissioned |
|---|---|---|---|---|---|
| Flamingo | L18 later U18 | Yarrow , Scotstoun | 26 May 1938 | 18 April 1939 | 3 November 1939 |
| Black Swan | L57 later U57 | Yarrow , Scotstoun | 20 June 1938 | 7 July 1939 | 27 January 1940 |
| Erne | U03 | Furness Sbdg , Haverton Hill-on-Tees | 22 September 1939 | 5 August 1940 | 26 April 1941 |
| Ibis | U99 | Furness Sbdg , Haverton Hill-on-Tees | 22 September 1939 | 28 November 1940 | 30 August 1941 |
| Whimbrel | U29 | Yarrow , Scotstoun | 31 October 1941 | 25 August 1942 | 13 January 1943 |
| Wild Goose | U45 | Yarrow , Scotstoun | 28 January 1942 | 14 October 1942 | 11 March 1943 |