The Seagull class were built as a class of thirteen 16-gun brig-sloops for the Royal Navy, although an extra 2 carronades were added soon after completion. The class was designed by one of the Surveyors of the Navy - Sir William Rule - and approved on 4 January 1805. Five vessels to this design were ordered in December 1804; eight more were ordered in the summer of 1805.
Unlike the larger s, whose main battery was composed of 32-pounder carronades, the Seagull class (and the similar s designed by Rule's co-surveyor - Sir John Henslow) were armed with a main battery of 24-pounder slide-mounted carronades.
| Name | Builder | Ordered | Laid down | Launched | Fate |
|---|---|---|---|---|---|
| John King, Dover | 12 December 1804 | February 1805 | 1 July 1805 | Captured 1808; decommissioned from Norwegian navy 1817 | |
| James Shepheard, Hull | 12 December 1804 | March 1805 | 13 August 1805 | Broken up May 1816 | |
| Jabez Bailey, Ipswich | 12 December 1804 | April 1805 | 11 July 1805 | Sold for breaking on 3 April 1817 | |
| John King, Dover | 12 December 1804 | April 1805 | 29 July 1805 | Sold 23 November 1815; mercantile service to c.1829 | |
| Robert Adams, Chapel (Southampton) | 12 December 1804 | April 1805 | 30 July 1805 | Sold for breaking 6 March 1819 | |
| William Row, Newcastle | 19 June 1805 | November 1805 | February 1806 | Grounded 3 May 1812 west of Boulogne; burnt to avoid capture. | |
| Robert Guillaume, Northam (Southampton) | 11 July 1805 | August 1805 | 7 December 1805 | Sold for breaking 30 May 1816 | |
| Richard Thorne, Fremington (near Barnstaple) | 12 July 1805 | September 1805 | June 1806 | Captured 31 January 1808 while stranded on the coast of Calabria. | |
| Jabez Bailey, Ipswich | 16 July 1805 | August 1805 | 23 October 1805 | Sold for breaking 6 March 1817 | |
| James Betts, Mistleythorn (near Manningtree) | 19 July 1805 | August 1805 | 21 January 1806 | Wrecked 1808; salved but broken up later that year at Malta | |
| Jabez Bailey, Ipswich | 30 July 1805 | October 1805 | 4 February 1806 | Wrecked at Tristan de Cunha 2 October 1817 | |
| Thomas Hills, Sandwich | 7 August 1805 | September 1805 | March 1806 | Foundered 19/20 December 1810 | |
| Mark Richards, Hythe | 30 August 1805 | October 1805 | 21 March 1806 | Sold for breaking 6 March 1816 | |