The Canada class ships of the line were a series of four 74-gun third rates designed for the Royal Navy by William Bateley. The name ship of the class was launched in 1765.
The Bellona-class ships of the line were a class of five 74-gun third rates, whose design for the Royal Navy by Sir Thomas Slade was approved on 31 January 1758. Three ships were ordered on 28 December 1757, with names being assigned on 1 February 1758. Two further ships to this design were ordered on 13 December 1758, at the same time as two ships of a revised design – the Arrogant class.
The London class ships of the line were a class of four second rates, designed for the Royal Navy by Sir Thomas Slade.
The Ramillies-class ships of the line were a class of nine 74-gun third rates, designed for the Royal Navy by Sir Thomas Slade.
The Albion-class ships of the line were a class of five 74-gun third rates, designed for the Royal Navy by Sir Thomas Slade.
The Edgar-class ships of the line were a class of three 60-gun fourth rates, designed for the Royal Navy by Sir Thomas Slade.
The Essex-class ships of the line were a class of two 64-gun third rates, designed for the Royal Navy by Sir Thomas Slade.
The St Albans-class ships of the line were a class of three 64-gun third rates, designed for the Royal Navy by Sir Thomas Slade.
The Ardent-class ships of the line were a class of seven 64-gun third rates, designed for the Royal Navy by Sir Thomas Slade.
The Duke-class ships of the line were a class of four 98-gun second rates, designed for the Royal Navy by Sir John Williams.
The Ganges-class ships of the line were a class of six 74-gun third rates, designed for the Royal Navy by Sir Edward Hunt.
The Courageux-class ships of the line were a class of six 74-gun third rates of the Royal Navy. Their design was a direct copy of the French ship Courageux, captured in 1761 by HMS Bellona. This class of ship is sometimes referred to as the Leviathan class. A further two ships of the class were built to a slightly lengthened version of the Courageux draught. A final two ships were ordered to a third modification of the draught.
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 Inflexible-class ships of the line were a class of four 64-gun third rates, designed for the Royal Navy by Sir Thomas Slade. The lines of this class were based heavily on Slade's earlier 74-gun Albion-class.
The Crown-class ships of the line were a class of three 64-gun third rates, designed for the Royal Navy by Sir Edward Hunt.
The Ajax-class ships of the line were a class of two 74-gun third rates of the Royal Navy. They were grouped in with the large class of 74s, as they carried 24-pounders on their upper gun decks, rather than the 18-pounders of the middling and common class 74s. The design of the Ajax class was a lengthened version of the Valiant class, the lines of which were taken from the French Invincible, captured in 1747.
The Fame-class ships of the line were a class of four 74-gun third rates, designed for the Royal Navy by Sir John Henslow. After the name-ship of the class was ordered in October 1799, the design was slightly altered before the next three ships were ordered in February 1800. A second batch of five ships was ordered in 1805 to a slightly further modified version of the original draught.
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 Adventure-class ship was a class of eight 44-gun sailing two-decker warships of the Royal Navy, classed as a fifth rate like a frigate, but carrying two complete decks of guns, a lower battery of 18-pounders and an upper battery of 12-pounders. This enabled the vessel to deliver a broadside of 318 pounds.
The Artois class were a series of nine frigates built to a 1793 design by Sir John Henslow, which served in the Royal Navy during the French Revolutionary and Napoleonic Wars.
