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
Gavin Astor, 2nd Baron Astor of Hever children: Astor died of cancer in 1984 at his home near Tarland, Scotland. He was succeeded in the barony by his eldest son Johnny. Gavin Astor, 2nd Baron Astor of Hever Gavin Astor, 2nd Baron Astor of Hever (1 June 1918 – 28 June 1984), was an English soldier, publisher, peer, and member of the Astor family. Astor was the eldest son of John Jacob Astor, 1st Baron Astor of Hever (1886–1971), and Lady Violet Elliot-Murray-Kynynmound (1889–1965). He had two younger brothers, Hugh (1920–1999) and John (1923–1987). His mother had two children, Mary (1910–2003) and George (1912–1997), from her previous