HMS Hever Castle (K521) depth on the fuses of the projectiles until the moment of firing. A single Squid-launched attack had a success rate of 25%. The class was also provided with HF/DF and Type 277 radar. "Hever Castle" was ordered on 23 January 1943. The ship, named for Hever Castle in Hever, Kent, was laid down on 29 June 1943 and launched on 24 February 1944. At some point in 1943, the ship was transferred to the Royal Canadian Navy. The corvette, renamed "Copper Cliff" after a suburb of Sudbury, Ontario, was commissioned into the Royal Canadian Navy on 25 February 1944 with
Shrule Castle (County Mayo) Burghs of Mayo and McDonnells of Mayo led a force to retake the castle however the castle was not retaken. The chief of the McDonnells of Knocknacloy Calvagh McDonnell was killed on 18 June 1570 and during the battle Edward Fitton was unhorsed and severely wounded in the face. William Burke occupied the castle, and passed to his son John Burke in 1574 and in 1610, Richard Burke, 4th Earl of Clanricarde leased the castle and lands to Pierce Lynch of Galway. Shrule Castle (County Mayo) Shrule Castle (, ) is a ruined tower castle near Shrule in County Mayo,