Although initially armed with eight 4-pounder guns, this class was built with seven pairs of gunports on the upper deck (each port flanked by two pairs of row-ports), and the two survivors in 1744 had their ordnance increased to ten guns.
At the start of the War of Jenkins' Ear in 1739, the Royal Navy had a shortage of small combatant vessels to undertake the patrol and escort role; basically their only suitable vessels were the twelve 200-ton sloops built in the period from 1728 to 1732 in the Royal Dockyards, each armed with eight 3-pounder or 4-pounder guns. A large expansion in the number of sloops was urgently needed to cope with the requirements of convoy duties. Initially, three more sloops of 200 tons were ordered in 1740 as replacements for earlier sloops of the same names. A design was produced by the Surveyor of the Navy, and contracts were offered to merchant builders in the River Thames area. The first two were contracted at a price of £7-15-0d per ton (or £1,550 for 200 tons) and the third at a price of £7-7-6d per ton (or £1,475 for 200 tons). After launching all three vessels were taken to Deptford Dockyard for completion and fitting out there, at an additional cost of £1,593-8-8d for Drake, £1,505-11-11d for Hawk, and £1,626-15-6d for Swift.
| Name | Ordered | Builder | Begun (keel laid) | Launched | Completed | Fate |
|---|---|---|---|---|---|---|
| 24 June 1740 | Thomas West, Wapping | 25 September 1740 | 19 February 1741 | 4 April 1741 | Wrecked 22 November 1742 in Gibraltar harbour. | |
| 25 August 1740 | Grevill & Whetstone, Limehouse | 20 October 1740 | 10 March 1741 | 26 April 1741 | Taken to pieces October 1747 at Deptford. | |
| 6 December 1740 | Robert Carter, Limehouse | 26 January 1741 | 30 May 1741 | 10 July 1741 | Lost 31 October 1756 | |