Minotaur-class ironclad

Minotaur, 1875–1887
Class overview
Name	Minotaur class
Operators	Royal Navy
Preceded by	HMS Achilles
Succeeded by	Prince Consort class
Completed	3
Scrapped	3
General characteristics
Class and type	Armoured frigate
Displacement	10,627 long tons (10,798 t)
Length	407 ft 0 in (124.05 m) (o/a)
Beam	59 ft 6 in (18.1 m)
Draught	27 ft 9 in (8.5 m)
Installed power	10 fire-tube boilers 6,949 ihp (5,182 kW)
Propulsion	1 shaft, 1 trunk steam engine
Sail plan	5-masted
Speed	14 knots (26 km/h; 16 mph)
Range	1,500 nmi (2,800 km; 1,700 mi) at 7.5 knots (13.9 km/h; 8.6 mph)
Complement	800 actual
Armament	4 × 9-inch (229 mm) rifled muzzle-loading (RML) guns 24 × 7-inch (178 mm) RMLs
Armour	Belt: 4.5–5.5 in (114–140 mm) Bulkheads: 5.5 in (140 mm)

The Minotaur-class ironclads consisted of three armoured frigates built for the Royal Navy during the 1860s. They were enlarged versions of HMS Achilles with heavier armament, thicker armour, and more powerful engines. The ships of this class were unique among ironclad warships in possessing on completion five masts, named fore-, second-, main-, fourth- and mizzen-.