HMS Portchester Castle (K362)
HMS Portchester Castle was a Castle-class corvette built in 1943 and scrapped in 1958.She was the only ship of the Royal Navy to be named after Portchester Castle in Hampshire, and was used for the 1952 film The Cruel Sea, in which she played Saltash Castle.She was launched on 21 June 1943 at Swan Hunter shipyard in Newcastle upon Tyne.On 9 September 1944 Portchester Castle and Helmsdale sank the German submarine U-484 in the North Atlantic north-west of Ireland, in position 55°45′N 11°41′W / 55.750°N 11.683°W / 55.750; -11.683.In both Sea and Lark she is shown wearing the pennant number F362 rather than her own K362.