russian ironclad russian ironclad russian ordered gun wooden frigate imperial_russian_navy early 1860s converted construction gun armored frigate served flagship 1860s 1870s ship decommissioned sold scrap description feet long perpendiculars beam feet inches draft feet inches forward feet aft displaced long tons fitted blunt iron ram bow considered total crew numbered officers enlisted men ship fitted horizontal return connecting rod steam engine built drove single bladed propeller steam provided unknown number rectangular boilers ship sea trials engine produced total indicated horsepower gave ship maximum speed knots mph ship carried maximum long tons coal endurance unknown ship rigged masts heavy frigate intended armed powerful guns available russians inch pounder gun long pounder armament revised converted ironclad completed armament inch rifled guns pounder guns inch guns located lower deck pounders mounted upper deck chase guns later pair pounder guns added upper deck armament upper deck changed consisted inch inch inch rifled guns entire ship protected wrought iron armor extended feet inches waterline inches thick amidships backed inches teak reduced inches backed inches teak steps beginning feet ship ends construction service named siege war laid january gun heavy frigate new admiralty shipyard saint_petersburg converted gun armored frigate october construction ship launched august commissioned august 1860s 1870s served flagship decommissioned june stricken navy list january subsequently sold scrap
Russian ironclad Petropavlovsk