Intrepid-class ship of the line
| HMS Diadem at the capture of the Cape of Good Hope | |
| Class overview | |
|---|---|
| Name | Intrepid | 
| Operators | Royal Navy | 
| Preceded by | Ardent class | 
| Succeeded by | Worcester class | 
| In service | 4 December 1770 - 1827 | 
| Completed | 15 | 
| Lost | 3 | 
| General characteristics | |
| Type | Ship of the line | 
| Length | 
 | 
| Beam | 44 ft 4 in (13.51 m) | 
| Depth of hold | 19 ft (5.8 m) | 
| Propulsion | Sails | 
| Complement | 500 officers and men (491 from 1794) | 
| Armament | 
 | 
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.