Clown-class gunboat

A typical 'Crimea gunboat'
Class overview
Name	Clown class
Operators	Royal Navy
Preceded by	Cheerful class
Succeeded by	Algerine class
Built	1856
In commission	1856 – 1871
Completed	12
Lost	2
General characteristics [1]
Type	'Crimean' gunboat
Tons burthen	232 80⁄94 tons bm
Length	110 ft (34 m) (gundeck) 95 ft 5.25 in (29.0894 m) (keel)
Beam	21 ft 10 in (6.65 m)
Draught	4 ft 0 in (1.22 m)
Depth of hold	6 ft 7 in (2.01 m)
Installed power	40 nominal horsepower (Woodcock 145 ihp (108 kW))
Propulsion	1-cylinder horizontal direct-acting single-expansion steam engine Single screw
Speed	7.5 kn (13.9 km/h)
Crew	30
Armament	1 × 68-pounder, 1 × 32-pounder SBML guns

The Clown-class gunboat was a class of twelve gunboats ordered by the Royal Navy in January 1856 for use in the Crimean War, although by the time they were completed, later that year, the Crimean War was over and some of these gunboats were sent to the Far East and took part in the Second Opium War.