Classe River

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The River class was a class of 151 frigates launched between 1941 and 1944 for use as anti-submarine convoy escorts in the North Atlantic. The majority served with the Royal Navy and Royal Canadian Navy (RCN), with some serving in the other Allied navies: the Royal Australian Navy (RAN), the Free French Naval Forces, the Royal Netherlands Navy and, post-war, the South African Navy. The Royal Navy placed the first orders in 1940, and the vessels were named after rivers in the United Kingdom, giving the name to the class. In Canada, they were called after towns and cities, although they retained the same designation. Originally called a "twin-screw corvette", the name "frigate" was suggested by Vice-Admiral Percy W. Nelles of the Royal Canadian Navy. Canada originally ordered the construction of 33 frigates in October 1941. The design was too big for the locks on the Lachine Canal so it was not built by the shipyards on the Great Lakes and therefore all the frigates built in Canada were built in dockyards along the West Coast or along the St. Lawrence River below Montreal. In all, Canada ordered the construction of 70 frigates, including ten for the Royal Navy, which transferred two (USS Asheville and USS Natchez) to the United States Navy. These served as the basis of the US Navy Tacoma class frigate series. Twelve were built in Australia for the RAN (four to a modified design). After World War II, they found employment in many other navies the world over; several RCN ships were sunk as breakwaters. One, HMCS Stormont, was purchased by Aristotle Onassis and converted into the luxury yacht Christina O.