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
John Astor, 3rd Baron Astor of Hever Vice-Chairman of the Conservative Middle East Council. In 1995 he piloted through the House of Lords the Road Traffic (New Drivers) Act and in 1996 the Trading Schemes Act. Astor married firstly Fiona Diana Lennox-Harvey on 1 July 1970. They had three daughters together: They were divorced in 1990 and in the same year Astor married Hon. Elizabeth Mackintosh, younger daughter of John Mackintosh, 2nd Viscount Mackintosh of Halifax. They had two children: John Astor, 3rd Baron Astor of Hever John Jacob "Johnny" Astor VIII, 3rd Baron Astor of Hever, PC DL (born 16 June 1946) is an English businessman