Minotaur-class ironclad

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-.

Minotaur, 1875–1887
Class overview
NameMinotaur class
Operators Royal Navy
Preceded byHMS Achilles
Succeeded byPrince Consort class
Completed3
Scrapped3
General characteristics
Class and typeArmoured frigate
Displacement10,627 long tons (10,798 t)
Length407 ft 0 in (124.05 m) (o/a)
Beam59 ft 6 in (18.1 m)
Draught27 ft 9 in (8.5 m)
Installed power
Propulsion1 shaft, 1 trunk steam engine
Sail plan5-masted
Speed14 knots (26 km/h; 16 mph)
Range1,500 nmi (2,800 km; 1,700 mi) at 7.5 knots (13.9 km/h; 8.6 mph)
Complement800 actual
Armament
Armour
  • Belt: 4.5–5.5 in (114–140 mm)
  • Bulkheads: 5.5 in (140 mm)

History

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They were originally intended to mount forty Armstrong 110-pounder breech-loading guns on the main deck, with ten more on pivot mountings on the upper deck. The failure of these guns in service led to a complete re-evaluation of their armament, with a concomitant delay in the arming of the whole class. The ships were armed with a combination of 9-inch muzzle-loading rifles (MLR) on metal carriages and 7-inch MLRs on rope-worked carriages. In a moderate swell these 7-inch guns were virtually unworkable, making the Minotaurs both the heaviest and the worst armed of the Victorian battleships.

The Minotaurs were poor sailors, never exceeding a speed under sail of about 9.5 knots (17.6 km/h; 10.9 mph) with all sail set and a favourable wind. They were, in spite of the number of masts they exhibited, the most sluggish of all British ironclads under sail. They were regarded as good sea-boats, and were considered to be among the steadiest ships in the battle-fleet[citation needed]. They were slow in manoeuvre under hand-steering, but were regarded as good after steam steering was fitted.

Notes

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References

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  • Ballard, G. A., Admiral (1980). The Black Battlefleet. Annapolis, Maryland: Naval Institute Press. ISBN 0-87021-924-3.{{cite book}}: CS1 maint: multiple names: authors list (link)
  • Brown, David K. (2003). Warrior to Dreadnought: Warship Development 1860–1905 (reprint of the 1997 ed.). London: Caxton Editions. ISBN 1-84067-529-2.
  • Friedman, Norman (2018). British Battleships of the Victorian Era. Annapolis, Maryland: Naval Institute Press. ISBN 978-1-68247-329-0.
  • Parkes, Oscar (1990) [1957]. British Battleships. Annapolis, Maryland: Naval Institute Press. ISBN 1-55750-075-4.
  • Roberts, John (1979). "Great Britain (including Empire Forces)". In Chesneau, Roger & Kolesnik, Eugene M. (eds.). Conway's All the World's Fighting Ships 1860–1905. New York: Mayflower Books. pp. 1–113. ISBN 0-8317-0302-4.* Silverstone, Paul H. (1984). Directory of the World's Capital Ships. New York: Hippocrene Books. ISBN 0-88254-979-0.
  • Text Book of Gunnery. London: Harrison and Sons for His Majesty's Stationery Office. 1887. Archived from the original on 4 December 2012. Retrieved 27 September 2010.