Intrepid-class ship of the line

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.

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	159 ft 6 in (48.62 m) (gundeck) 131 ft 0 in (39.93 m) (keel)
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	64 guns: Gundeck: 26 × 24 pounders Upper gundeck: 26 × 18 pdrs Quarterdeck: 10 × 4 pdrs Forecastle: 2 × 9 pdrs