member ship class built imperial_german_navy built shipyard kiel laid launched december commissioned high_seas_fleet january armed main battery guns torpedo tubes capable speed knots mph initially artillery training ship gunners german fleet november accidentally rammed sank torpedo boat sms maneuvers kiel thirty men killed incident outbreak world war august deployed baltic_sea use coastal defense ship attacked british submarine november hit torpedoes second detonated ship ammunition magazines exploded sank men killed attack construction ordered contract laid shipyard kiel launched december fitting work commenced commissioned high_seas_fleet january ship meters long overall beam draft forward displaced long tons short tons combat load propulsion system consisted triple expansion engines manufactured designed shaft horsepower speed knots mph engines powered coal fired marine type water tube boilers carried tonnes long tons coal gave range nautical miles knots mph crew officers enlisted men ship armed guns single mounts placed forward forecastle located amidships placed aft guns engage targets supplied rounds ammunition shells gun equipped torpedo tubes torpedoes submerged hull broadside ship protected armored deck thick conning tower thick sides guns protected thick shields service history commissioning assigned training squadron use gunnery training ship night november collided torpedo boat maneuvers outside kiel rest unit torpedo boat flotilla conducting mock night attack cruiser steaming lights torpedo boats approached turned search lights blinded crew torpedo boat inadvertently ran rammed sank officer thirty enlisted men aboard killed accident outbreak world war august employed coastal defense ship baltic november steaming north pair destroyers attacked british submarine command lieutenant commander launched pair torpedoes range meters hit second torpedo detonated ammunition magazines blew ship sank quickly fourteen men killed attack majority crew rescued escorting destroyers loss came heels sinking armored cruiser weeks earlier losses significant german_navy movements fleet baltic remainder year
SMS Undine