Cyclops-class monitor

Right elevation plan from Brassey's Naval Annual 1888–1889
Class overview
NameCyclops class
Operators Royal Navy
Preceded byHMS Rupert
Succeeded byConqueror class
Built1870–1877
In service1874–1901
Planned4
Completed4
Scrapped4
General characteristics
TypeBreastwork monitor
Displacement3,480 long tons (3,540 t)
Length225 ft (68.6 m) (p/p)
Beam45 ft (13.7 m)
Draught16 ft 3 in (5.0 m) (deep load)
Installed power1,472–1,709 indicated horsepower (1,098–1,274 kW)
Propulsion2 shafts, 2 steam engines
Speed11 knots (20 km/h; 13 mph)
Range3,000 nmi (5,600 km; 3,500 mi) at 10 kn (19 km/h; 12 mph)
Complement156
Armament2 × 2 - 10-inch (254-mm) rifled muzzle loading guns
Armour

The Cyclops-class monitor was a group of four ironclad breastwork monitors built for the Royal Navy during the 1870s. They were slightly modified versions of the Cerberus-class monitors. The ships were ordered to satisfy demands for local defence during the war scare of 1870, but the pace of construction slowed tremendously as the perceived threat of war declined. The Cyclops-class monitors spent most of their careers in reserve and were finally sold off in 1903.