hms hms lead ship class armoured frigates built royal_navy 1860s longest single screw warships built took nearly years launching commissioning armament different sailing ship spent bulk active career flagship channel_fleet including queen_victoria training ship training school renamed times sold scrap broken following year design description class armoured frigates essentially enlarged versions ironclad heavier armament armour powerful engines retained broadside ironclad layout predecessor sides fully armoured protect guns designed carry equipped shaped ram prominent class ships feet long perpendiculars feet long overall beam feet inches draft feet inches ships displaced long tons hull subdivided watertight transverse bulkheads double underneath engine boiler rooms considered excellent sea boat steady gun platform steam practically sail built steam powered steering improved qualities significantly installed judged best navy vice admiral ship partially result metacentric height feet propulsion cylinder trunk steam engine sons drove single foot propeller rectangular fire tube boilers provided steam engine working pressure psi kpa cm2 engine produced total indicated horsepower ship sea trials maximum speed knots mph ships carried long tons coal steam nmi knots mph reached knots mph ihp ship masts sail area square feet propeller disconnected hoisted stern ship reduce drag knots mph sail funnels semi retractable reduce wind resistance sail admiral described sisters performers canvas fleet day ships carried dress little purpose withdrawal active service masts removed rigged barque armament armament class ships intended rifled pounder breech loading guns main deck upper deck pivot mounts gun new design armstrong proved failure years introduction gun withdrawn received class ships armed instead mix seven inch inch rifled muzzle loading guns inch seven inch guns mounted main deck seven inch guns fitted upper deck chase guns ship received brass use guns gun ports inches wide allowed gun fire fore aft beam shell calibre inch gun weighed pounds gun weighed long tons muzzle velocity credited ability penetrate inches wrought iron armour muzzle calibre inch gun weighed long tons fired pound shell credited ability penetrate inch armour rearmed uniform armament inch guns main deck forward chase guns rear chase gun gun ports enlarged accommodate larger guns hand cost inches breech loading guns replaced inch muzzle loading guns quick firing inch guns pounder hotchkiss guns machine guns torpedo tubes installed armour entire class ships protected wrought iron armour tapered inches ends inches amidships section bow upper main decks armour extended feet inches waterline single inch transverse bulkhead protected forward chase guns upper deck armour backed inches teak construction service hms originally ordered september honour ship commanded nelson seventy years changed construction laid september london launched december commissioned april completed june lengthy delay completion frequent changes design details experiments armament sailing rig ship cost total finally commissioned portsmouth flagship channel_fleet position retained ship nearly rammed ironclad leaving lost fore mast suffered minor flooding paid long refit resumed position rejoined channel_fleet ship royal_navy receive permanent installation electric ship flagship vice admiral sir earned victoria_cross siege queen_victoria july paid end portsmouth assigned reserve training ship portland renamed hms march transferred training school ship renamed june april sold january scrap
HMS Minotaur (1863)