german cruiser light cruiser second member class operated april including service world war operated german navies kriegsmarine sister ships built shipyard kiel laid july launched august commissioned november armed main battery guns triple turrets speed knots mph like sisters served training cruiser naval cadets 1930s spanish civil war joined non intervention patrols spanish coast process modernized outbreak world war september ready action april participated invasion norway landed troops returning germany attacked british submarine hms torpedoes hit ship caused significant damage unable return port scuttled escorting torpedo boats characteristics meters long overall beam maximum draft displaced long tons combat load propulsion system consisted steam turbines pair cylinder stroke diesel engines steam turbines provided marine type double ended oil fired boilers ship propulsion system provided speed knots mph range approximately nautical miles knots mph crew officers enlisted men ship armed guns mounted triple gun turrets located forward placed superfiring pair aft rear gun turrets offset increase arc fire supplied rounds ammunition shells gun ship equipped anti aircraft guns single mounts rounds ammunition carried triple torpedo tube mounts located amidships supplied torpedoes capable carrying naval mines ship protected armored deck thick amidships armored belt thick conning tower thick sides service history new cruiser ordered cruiser given temporary replacement old cruiser construction began july keel laying shipyard kiel launched august commissioned november completed sea trials baltic_sea entering service assigned training ship duty departed overseas training cruise africa south_america returning germany modernized late year foremast shortened rear superstructure slightly enlarged years embarked world cruises naval cadets traveling far japan cruise conducted exercises rest fleet german waters served ship commander september september modifications including installation pole mast aft funnels aircraft catapult amidships crane handle training cruise badly damaged tropical storm pacific_ocean structural weaknesses hull plating caused significant damage cruiser forced san_diego april repairs hull repaired strengthened increased displacement beam slightly returned germany june immediately went drydock permanent repairs major overhaul period dockyard hands single mount anti aircraft guns replaced twin mounts fire control directors installed guns emerging refit conducted sea trials joined non intervention patrols spanish civil war remained spain months world war returning germany resumed training duties baltic withdrawn service major modernization funnels modified caps platforms sides ship guns replaced powerful guns work lasted november shortly outbreak world war spent months trials training maneuvers january sent intercept swedish steamer transporting polish refugees sweden caught swedish vessel declared prize sent poles aboard ready combat operations start troop transport attack attack force included boat tender large torpedo boats boats invasion force left early april bound arrived heavy fog obscured city making passage outside harbor dangerous result wait following morning begin attack entered came heavy fire norwegian coastal guns cruiser turned bring broadside action artillery duel lasted hours heavy fog covered port forcing sides cease fire surrendered hour later german ships landed soldiers left torpedo boats escorts british submarine hms positioned outside crew spotted german ships fired spread torpedoes evade torpedoes hit ship struck bow hit amidships large holes hull allowed thousands tons water flood ship flooding disabled engines electricity generators cut power pumps trying pace progressively flooding pumps shut hope save commander issued order abandon hours attack torpedo boat took crew fired torpedoes ship ensure sank executive officer severely criticized failing possible steps save later investigation sinking report concluded ship afloat hours torpedoes required sink possible tow port addition forward pumps power flooding slowed permit return safe harbor
German cruiser Karlsruhe