class destroyer built royal_navy mid-1930s spanish civil war ship enforced arms blockade imposed britain france sides mediterranean_fleet months world war searched german commerce raiders atlantic_ocean blockaded german merchant ships neutral returned british isles early ship participated transferred mediterranean_fleet shortly participated july escorting larger ships fleet ship covered convoys malta struck sunk december description displaced long tons standard load long tons deep load ship overall length feet beam feet draught feet inches powered parsons geared steam turbines driving shafts developed total shaft horsepower gave maximum speed knots mph class destroyers built admiralty drum water tube boilers trial uniquely johnson boiler aft position instead type boiler single lower water drum curved tubes triangular arrangement drums admiralty boiler design suffered poor circulation external cold added making reworked boiler heavier boiler regarded service reduced potentially troublesome usually base carried maximum long tons fuel oil gave range nautical miles knots mph ship complement officers men peacetime increased wartime ship mounted calibre inch guns single mounts anti aircraft defence quadruple mark mounts inch machine gun fitted water quadruple torpedo tube mounts inch torpedoes depth charge rail throwers fitted depth charges originally carried increased shortly war began ship anti aircraft armament increased rear set torpedo tubes replaced pounder cwt gun exactly modification known career ordered december laid england march launched april completed december excluding government furnished equipment like armament ship cost assigned 2nd destroyer flotilla mediterranean_fleet commissioning patrolled spanish waters spanish civil war enforcing policies ship received overhaul malta september october resumed patrolling spanish waters rest war sent portsmouth refit august lasted august world war began september ship route sierra search german commerce raiders transferred north_america west indies station late october blockaded german merchant ships american mexican intercepted german ocean liner columbus cape december columbus scuttled captured transferred british isles mid january began refit portsmouth lasted january march ship rejoined 2nd destroyer flotilla home fleet flow april escorted battlecruiser renown covered preparing implement operation lay mines prevent transport swedish iron ore germany ship sister hero pretended lay minefield norway april reported location escorted aircraft carriers glorious april aircraft attacked german targets norway remained glorious returned scapa_flow refuel april early ship escorted light cruiser birmingham unsuccessful sweep north_sea looking german ships evacuated british personnel ordered reinforce mediterranean_fleet malta july participated escort heavy ships force unsuccessfully engaged italian destroyers suffered damage july ship escorted australian light cruiser rescued survivors italian cruiser escorting destroyers sister destroyers bombarded italian positions september escorted carrier night november sank italian submarine december near struck december escorted battleship passage alexandria gibraltar covering convoy malta destroyer attempted tow tow cable broke twice destroyer ordered sink took crew members crew rescued presumed killed explosion
HMS Hyperion (H97)