lead ship namesake class built royal_navy world war class initially assigned north_sea transferred lead 12th flotilla flotilla posted mediterranean assist successful clearing operation torpedoed italian submarine causing sink leaving survivors description displaced long tons standard load long tons deep load ship overall length feet beam feet inches draught feet inches powered parsons geared steam turbines driving shafts gave maximum speed knots mph ship mounted single inch gun single mounts millimetre fitted depth charge rails depth charge throwers career laid march belfast launched december eighth ship royal_navy named completed ship commissioned march adopted warship week campaign joined 9th flotilla began action escorting patrolling duties east england proposed leader 12th flotilla participate action abroad sister ships alarm joined acute october forward mediterranean assist departure delayed repair work ships flotilla left gibraltar escorts convoy days ships left escorted convoy early november helped recover escort destroyer damaged aerial attack november alarm positioned clearing mines mission successful mines cleared torpedoed italian class submarine commanded lieutenant commander submarine fired torpedoes middle ship trio fired torpedoes final ship suffered heavy casualties sank converted merchant vessel rescued men survived internal wounds killing survivors wreck lies northern coast algeria
HMS Algerine (J213)