Dear List and Betty The majority of the Flower Class were in the Royal Navy and the Royal Canadian Navy. However a limited number ended up in service with US Navy in the early period of America's entry into the war, and at least four French vessels of this class ended up being taken over by the Kriegsmarine. As far as I am aware the sole remaining example is HMCS Sackville which is preserved in Canada having served the latter part of her active life with the RCMP. With reference to The Cruel Sea, so rapid was the scrapping programme of these vessels after WWII that by 1953 the only active vessels in Europe at the time of the making of the film were in the Royal Hellenic Navy and it was the Greek vessels which featured in the film Rgds Andy Adams