castle class built royal_navy world war completed end ship ran aground training january repairs completed following month briefly assigned 39th convoy escort duties atlantic_ocean transferred escort group march screened convoys gibraltar september month joined escort group escort convoys canada britain continued end war ship anti submarine training ship scotland moving portland beginning remained taken service march broken beginning july design description castle class corvette stretched version preceding flower class enlarged improve accommodate modern weapons ships displaced long tons standard load long tons deep load ships overall length feet beam feet inches deep draught feet powered cylinder triple expansion steam engines driving propeller shaft steam provided admiralty drum boilers engines developed total indicated horsepower gave maximum speed knots mph castles carried maximum long tons fuel oil gave range nautical miles knots mph ships complement officers ratings castle class ships equipped single inch gun forward primary weapon single barrel squid anti submarine mortar backed depth charge rail throwers depth charges ships fitted twin pair single mounts millimeter light guns provision single mounts needed equipped type type sets detect submarines reflections sound waves water type search radar radio direction rounded castles suite construction career ship serve royal_navy ordered january laid shipyard scotland april ship launched september completed december arrived scotland january begin training royal_navy hms western isles ran aground training january refloated arrived belfast northern_ireland following day begin repairs lasted february ship assigned 39th escorted atlantic convoy mid march transferred liverpool based escort convoys gibraltar september assigned escort group protected convoys sailing newfoundland canada britain ship refitted cardiff wales january march rejoined group liverpool april assigned june anti submarine training ship visited ports norway germany months transferred june employed training unit redesignated basic anti submarine training flotilla september unit transferred portland variety names settling second training squadron january june took held celebrate coronation queen elizabeth_ii ship portray german anti submarine vessel film heroes taken service march demolition began starting july service uneventful awarded battle honour atlantic
HMS Flint Castle (K383)