class coastal defense ship class group coastal defense ships built german kaiserliche_marine late 19th century ships intended protect german coastline naval attacks class comprised lead ship sisters ships named norse mythological figures vessels class built similar design identical class ships obsolete outbreak world war saw limited service intended role withdrawn active duty ships served variety secondary duties including barracks ships target ships case baltic_sea ships struck naval register june days treaty versailles signed ships sold scrapping immediately struck register purchased shipping company converted freighter served capacity scrapped design general characteristics ships class meters long waterline long overall ships beam draft forward aft ships heavily rebuilt undergoing times rebuilding ships lengthened waterline overall ships beams remained draft slightly decreased forward aft ships designed displacement metric tons long tons short tons maximum displacement long tons reconstruction displacement increased long tons depending ship ships transverse longitudinal steel frames hull watertight compartments double ran hull watertight compartment added ships described good sea boats gentle motion responsive commands helm ships lost significant speed heavy seas ships crew officers enlisted men additional officers men serving flagship refit increased crew requirements additional sailors normally extra flagship crew increased officers men ships carried number smaller boats including picket boat propulsion ships powered sets cylinder triple expansion engines engine room engines drove pair bladed screws diameter ships marine type boilers exception equipped boilers ships similar maximum speeds fastest knots mph slowest knots mph ship electric generators provided kilowatts volts ships stored long tons short tons coal long tons short tons fuel oil enabled range nautical miles cruising speed knots mph knots mph ships steam nmi refit fuel doubled long tons short tons coal long tons short tons oil dramatically increased sailing range nmi knots nmi knots armament ships primary armament consisted guns arrangement unusual large guns mounted pair turrets forward mounted single turret aft guns train degrees centerline degrees elevate degrees enabled maximum range guns ammunition storage rounds shells gun guns rate fire shells minute design armor piercing shell weighed ships secondary battery guns rounds ammunition guns refit increased guns storage increased rounds gun fired muzzle velocity guns sustain rate fire approximately rounds minute machine guns temporarily fitted ships equipped torpedo tubes tube mounted stern water swivel mount placed water fourth bow torpedo tubes supplied total torpedoes refit stern lateral tubes replaced weapons lateral torpedo tubes submerged torpedoes bow tube retained moved waterline torpedoes armor ships armor consisted compound steel ships krupp armor coupled teak upper section main armored belt millimeters thick central portion ship reduced end mounted timber lower section belt thick central area bow stern portion armored belt mounted timber main armored deck thick increased conning tower roof thick sides thick armor protection conning tower sides increased construction ships class built combination private government shipyards laid dockyard kiel ship ordered coast defense ship construction number launched august commissioned fleet april built bremen ordered construction number launched november commissioned april built construction number provisional launched july commissioned active service february built wilhelmshaven kiel laid construction number provisional launched july commissioned april ordered respectively laid launched august commissioned october ship class laid launched october completed october service history ships class saw limited service intended roles revolutions capital ship building decade 20th century rapidly ships obsolete second naval law passed march reduced service life capital ships years years meant class ships number vessels replaced soon possible replaced class battleships replaced kaiser class battleships kaiser friedrich der respectively new battleships intended offensive operations class retained coast defense duties ships served capacity start world war withdrawn active service afterward ships served variety secondary roles primarily barracks ships ships struck naval register june shortly treaty versailles ended world war signed barracks ship wilhelmshaven intended rebuilt salvage ship plan abandoned vessel sold marks broken kiel served target ship boats transitioned ice breaking duty baltic_sea barracks ship danzig following removal navy service sold hamburg rebuilt freighter served capacity broken longest serving class ship barracks ship crews boats coast defense flotilla based like intended reconstructed salvage ship likewise abandoned broken scrap metal barracks ship removed active duty sold dutch ship breaking firm route grounded dutch coast wreck blown eventually scrapped barracks ship remainder world war sold scrapping end war
Siegfried-class coastal defense ship