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
Hever Golf Rose Sprinter. A year after her retirement, Hever Golf Rose died after failing to recover from the anaesthetic following an operation on a joint injury. Hever Golf Rose was bred by Ronald Popely who named her after his Hever Castle Golf Club. She was sired by Efisio out of the mare Sweet Rosina. Efisio, who was also owned by Popely for part of his stud career, sired the winners of almost a thousand races including twelve at Group One level. Sweet Rosina went on to produce the successful handicappers Go Hever Golf and Play Hever Golf. Popely sent Hever Golf Rose