The Hecla class was a class of bomb vessels of the Royal Navy of the early 19th century. They were designed for use as bomb or mortar ships and were very heavily built. Eight ships were launched; all were converted for use as exploration or survey ships. Four ships of the class are known for the role they played in Arctic and Antarctic exploration.
The Coventry-class frigates were 28-gun sixth rate frigates of the Royal Navy, principally in service during the Seven Years' War and the American Revolutionary War. They were designed in 1756 by Britain's Surveyor of the Navy, Sir Thomas Slade, and were largely modeled on HMS Tartar, which was regarded as an exemplar among small frigates due to its speed and maneuverability. The 1750s were a period of considerable experimentation in ship design, and Slade authorized individual builders to make "such alterations withinboard as may be judged necessary" in final construction.
The Intrepid-class ships of the line were a class of fifteen 64-gun third rates, designed for the Royal Navy by Sir John Williams. His design, approved on 18 December 1765, was slightly smaller than Sir Thomas Slade's contemporary Worcester-class design of the same year, against which it was evaluated competitively. Following the prototype, four more ships were ordered in 1767–69, and a further ten between 1771 and 1779.
The Repulse-class ships of the line were a class of eleven 74-gun third rates, designed for the Royal Navy by Sir William Rule. The first three ships to this design were ordered in 1800, with a second batch of five following in 1805. The final three ships of the class were ordered towards the end of the Napoleonic War to a modified version of Rule's draught, using the new constructional system created by Sir Robert Seppings; all three were completed after the war's end.
The Mermaid-class frigates were a group of six 28-gun sailing frigates of the sixth rate designed in 1760 by Sir Thomas Slade, based on the scaled-down lines of HMS Aurora.
The Enterprise-class frigates were the final class of 28-gun sailing frigates of the sixth-rate to be produced for the Royal Navy. These twenty-seven vessels were designed in 1770 by John Williams. A first batch of five ships were ordered as part of the programme sparked by the Falklands Islands emergency. Two ships were built by contract in private shipyards, while three others were constructed in the Royal Dockyards using foreign oak.
The Southampton-class frigates were 32-gun sailing frigates of the fifth rate produced for the Royal Navy. They were designed in 1756 by Sir Thomas Slade, and were the first 'true' fifth-rate frigates produced to the new single-deck concept. They were, however, designed with sweep ports along the lower deck.
The Richmond-class frigates were 32-gun sailing frigates of the fifth rate produced for the Royal Navy. They were designed in 1756 by the Navy's Surveyor, William Bately, and were his equivalent of the Southampton-class frigates designed by Bately's co-Surveyor, Thomas Slade. They were faster ships than the Southamptons, and were weatherly craft, remaining dry even in high seas. Three ships were ordered to this design between 1756 and 1757, while a second batch of three ships was ordered between 1761 and 1762 to a slightly modified design.
The Niger-class frigates were 32-gun sailing frigates of the fifth rate produced for the Royal Navy. They were designed in 1757 by Sir Thomas Slade, and were an improvement on his 1756 design for the 32-gun Southampton-class frigates.
The Lively class were a successful class of sixteen British Royal Navy 38-gun sailing frigates.
The Banterer-class sailing sixth rates were a series of six 22-gun post ships built to an 1805 design by Sir William Rule, which served in the Royal Navy during the Napoleonic War. The first four were launched in 1806 and the remaining two in 1807. One ship – the Banterer – was lost in 1808 and another – the Cyane – captured by the United States Navy in 1815; the remaining four were all deleted during 1816.
The Conway class sailing sixth rates were a series of ten Royal Navy post ships built to an 1812 design by Sir William Rule. All ten were ordered on 18 January 1812, and nine of these were launched during 1814, at the end of the Napoleonic War; the last (Tees) was delayed and was launched in 1817.
The Hermes class were a series of four 20-gun ships, launched between 1811 and 1816. Two pairs of ships were produced, to slightly different designs – the first two had 20 guns and were unrated flush-decked ship-sloops, whilst the latter two were converted to 26-gun sixth-rates. The design was based on the ex-French 20-gun corvette Bonne Citoyenne, which the British had captured in 1796.
The Seringapatam-class frigates, were a class of British Royal Navy 46-gun sailing frigates.
The Apollo-class sailing frigates were a series of twenty-seven ships that the British Admiralty commissioned be built to a 1798 design by Sir William Rule. Twenty-five served in the Royal Navy during the Napoleonic Wars, two being launched too late.
The Scamander class sailing frigates were a series of ten 36-gun ships, all built by contract with private shipbuilders to an 1812 design by Sir William Rule, which served in the Royal Navy during the late Napoleonic War and War of 1812.
The Roebuck-class ship was a class of twenty 44-gun sailing two-decker warships of the Royal Navy. The class carried two complete decks of guns, a lower battery of 18-pounders and an upper battery of 9-pounders. This battery enabled the vessel to deliver a broadside of 285 pounds. Most were constructed for service during the American Revolutionary War but continued to serve thereafter. By 1793 five were still on the active list. Ten were hospital ships, troopships or storeships. As troopships or storeships they had the guns on their lower deck removed. Many of the vessels in the class survived to take part in the Napoleonic Wars. In all, maritime incidents claimed five ships in the class and war claimed three.
The Atholl-class corvettes were a series of fourteen Royal Navy sailing sixth-rate post ships built to an 1817 design by the Surveyors of the Navy. A further four ships ordered to this design were cancelled.
HMS Worcester was a 52-gun 1,500 ton fourth rate frigate of the Royal Navy, the last of six Southampton class ships built, and the fifth naval ship to bear the name. Ordered in 1818, she was laid down in Deptford Dockyard in 1820 but then delayed, spending 23 years on the stocks before being launched on 10 October 1843 and completed at Sheerness Dockyard in November.
