prince consort class armoured frigate built royal_navy 1860s lead ship class described half sister ships different engine boiler arrangements like sisters converted ironclad wooden ship line construction ship spent career mediterranean_fleet briefly serving channel_fleet returned home refit instead placed reserve save money fourteen years later reserve sold scrap design description feet long perpendiculars beam feet inches ship draught feet inches forward feet inches aft displaced long tons tons low centre gravity meant rolled lot gun platform sailed sail steam crew consisted officers enlisted men propulsion simple horizontal cylinder horizontal return connecting rod steam engine built drove single propeller shaft steam provided rectangular boilers engine produced indicated horsepower ship sea trials june gave ship maximum speed knots mph steam carried maximum long tons coal steam nautical miles knots mph ship initially barque rigged masts sail area square feet yards added ship june given ship rig retained rest career propeller designed disconnected hoisted stern ship reduce drag sail rarely bulkhead surrounding holes flooded ship covers removed moderate sea reduce drag funnel lowered best speed propeller disconnected sail knots mph fastest british ironclad ship exceed best speed steam sail armament initially armed muzzle loading pounder guns main deck rifled breech loading armstrong seven inch pounder guns main deck served chase guns upper deck bow aft inch solid shot pounder gun weighed approximately pounds gun weighed pounds gun muzzle velocity range yards elevation seven inch shell pounder armstrong breech weighed pounds muzzle velocity elevation maximum range yards guns fire solid shot explosive shells ship original armament replaced refit seven inch inch rifled muzzle loading guns seven inch guns chase guns shell calibre inch gun weighed pounds gun weighed long tons muzzle velocity credited ability penetrate inches wrought iron armour muzzle calibre seven inch gun weighed long tons fired pound shell able penetrate inch armour armour entire prince consort class ships upper deck level downwards protected wrought iron armour tapered inches ends inches amidships armour extended feet inches waterline backed sides hull inches thick construction service named english oak tree king charles_ii hid escape defeat laid chatham dockyard gun class ship line ordered converted ironclad launched september ship commissioned april run trials completed price briefly served channel_fleet transferred mediterranean_fleet paid refit rejoined channel_fleet months accidentally rammed hms warrior heavy weather night august impact main boats starboard months later ship returned mediterranean present opening suez_canal november grounded outside egypt sustaining damage paid extensive refit portsmouth end instead laid economy measure fourth class reserve years longer worth repairing sold breaking september memorials block housing new development rochester riverside named ship
HMS Royal Oak (1862)