Amethyst class corvette

HMS Diamond in Farm Cove, Sydney c. 1887
Class overview
Name:	Amethyst-class
Builders:	Devonport Dockyard, Sheerness Dockyard
Operators:	Royal Navy
Preceded by:	Volage class
Succeeded by:	HMS Rover
Built:	1871–75
Completed:	5
Scrapped:	5
General characteristics (as built)
Type:	Wooden screw corvette
Displacement:	1,934 long tons (1,965 t)
Tons burthen:	1,405 bm
Length:	220 ft (67.1 m) (p/p)
Beam:	37 ft (11.3 m)
Draught:	18 ft (5.5 m)
Installed power:	2,031–2,364 ihp (1,515–1,763 kW)
Propulsion:	1 shaft 1 × 2-cylinder compound expansion steam engine 6 cylindrical boilers
Sail plan:	Ship rig
Speed:	12–13 knots (22–24 km/h; 14–15 mph)
Range:	2,060–2,500 nmi (3,820–4,630 km; 2,370–2,880 mi) at 10 knots (19 km/h; 12 mph)
Complement:	225
Armament:	14 × 64-pounder 71-cwt or 64-cwt rifled muzzle-loading (RML) guns

The Amethyst-class corvettes were the last wooden warships built at a royal dockyard. Built in the early 1870s, they mostly served overseas and were retired early as they were regarded as hopelessly obsolete by the late 1880s.